TELEMECANIQUE RM4JA31MW

Zelio Control measurement and control relays Available 2nd Selection guide Quarter 2001 Applications Current measurement a and c Voltage measurement a and c Control of Control of single-phase 3-phase supplies supplies Overcurrent Undercurrent or Overvoltage Undervoltage or Undervoltage overcurrent overvoltage and overvoltage (2 controlled thresholds) 3 Measurement or Adjustable Adjustable thresholds Adjustable thresholds Adjustable Control: control threshold 0.003…1 A 0.05…5 V thresholds rotational 0.003…1 A or 0.3…15 A or 1…100 V undervoltage: direction and depending on model or 30…500 V 80…120 V or presence of depending on model 160…220 V phases overvoltage: 200…500 V 160…220 V or 220…330 V depending model Supply voltage c 24 V z 24…240 V c 24 V z 24…240 V Self-powered relays c 110…130 V c 110…130 V c 110…130 V c 110…130 V c 220…240 V c 220…240 V c 220…240 V c 220…240 V c 380…415 V c 380…415 V Number of output 1 C/O 2 C/O 1 C/O 2 C/O relay contacts Output relay state Energised when threshold is exceeded Energised during fault free operation. De-energised on detection of a fault. Built-in None Adjustable None Adjustable 0.05 to 30 s None time delay 0.05 to 30 s Type RM4-JA0 RM4-JA3 RM4-UA0 RM4-UA3 RM4-UB3 RM4-TG20 Pages 3/35 3/35 3/41 3/41 3/52 3/48 3/28 Te Available 2nd Quarter 2001 Control of 3-phase supplies Liquid level control 3 Control: Control: Control: Measurement of liquid resistance rotational rotational rotational direction and presence, by submersible probes direction and direction and of phases, presence of presence of asymmetry of phases phases, phases, 200…500 V. undervoltage undervoltage, 200...500 V, overvoltage adjustable 200...500 V, threshold adjustable or fixed thresholds Self-powered relays c 24 V z 24…240 V c 110…130 V c 110…130 V c 220…240 V c 220…240 V c 380…415 V c 380…415 V 2 C/O 1 C/O 2 C/O 1 C/O 2 C/O Energised during fault free operation. Empty function: De-energised on detection of a fault. Energised: high electrode immersed. De-energised: low electrode not immersed. Fill function: Energised: low electrode not immersed. De-energised: high electrode immersed. None Adjustable Fixed 0.5 s Adjustable None Adjustable 0.1 to 10 s 0.1 to 10 s 0.1 to 10 s RM4-TU RM4-TR RM4-TA0 RM4-TA3 RM4-LG01 RM4-LA32 3/48 3/48 3/48 3/48 3/56 3/56 3/29 Te Zelio Control - measurement and control relays Current and voltage measurement relays : pages 3/32 to 3/43 General characteristics 3-phase supply control relays : pages 3/44 to 3/49 Single-phase supply control relays : pages 3/50 to 3/53 Liquid level control relays : pages 3/54 to 3/57 Environment Conforming to standards IEC 60255-6, EN 60255-6 Product approvals CSA, GL, UL, pending � marking Zelio Control measurement relays conform to European regulations relating to � marking Ambient air temperature Storage °C - 40…+ 85 around the device Operation °C - 20…+ 65 Permissible relative humidity range Conforming to IEC 60721-3-3 15…85 % Environmental class 3K3 Vibration resistance Conforming to IEC 6068-2-6, 10 to 55 Hz a = 0.35 ms Shock resistance Conforming to IEC 6068-2-27 15 gn - 11 ms 3 Degree of protection Casing IP 50 Terminals IP 20 Degree of pollution Conforming to IEC 60664-1 3 Overvoltage category Conforming to IEC 60664-1 III Rated insulation voltage Conforming to IEC V 500 Conforming to CSA V (1) Test voltage for Dielectric test kV 2.5 insulation tests Shock wave kV 4.8 Voltage limits Power supply circuit 0.85…1.1 Uc (2) Frequency limits Power supply circuit 50/60 ± 5 % Disconnection value Power supply circuit > 0.1 Uc (2) Mounting position In relation to normal vertical Any position without derating mounting plane 2 Connection Flexible cable without cable end mm 2 x 2.5 Maximum c.s.a. 2 Flexible cable with cable end mm 2 x 1.5 Tightening torque N.m 0.6…1.1 Immunity to electromagnetic interference (EMC) (Application class 2 conforming to EN 61812-1) Electrostatic discharge Conforming to IEC 61000-4-2 Level 3 (6 kV contact, 8 kV air) Electromagnetic fields Conforming to IEC 61000-4-3 Level 3 (10 V/m) Fast transients Conforming to IEC 61000-4-4 Level 3 (2 kV) Shock waves Conforming to IEC 61000-4-5 Level 3 (2 kV) Radiated and CISPR11 Group 1 class A conducted emissions CISPR22 Class A (1) Value not communicated. (2) Except RM4-T, see page 3/47. 3/30 Te Zelio Control - measurement and control relays Current and voltage measurement relays : pages 3/32 to 3/43 General characteristics (continued) 3-phase supply control relays : pages 3/44 to 3/49 Single-phase supply control relays : pages 3/50 to 3/53 Liquid level control relays : pages 3/54 to 3/57 Output circuit characteristics Mechanical durability In millions of operating cycles 30 Current limit Ith A 8 Rated operational limits at 70 °C 24 V 115 V 250 V Conforming to IEC 60947-5-1/1991 and VDE 0660 AC-15 A333 DC-13 A 2 0.3 0.1 Minimum switching capacity 12 V/10 mA Switching voltage Rated V c 250 3 Max V c 440 Contact material Nickel Silver 90/10 a.c. load d.c. load Curve 1 Curve 2 Load limit curve Electrical durability of the contacts on a resistive Reduction factor k for inductive loads load in millions of operating cycles (applies to values taken from the durability curve opposite) 10 1 300 0,9 200 0,8 0,7 100 1 3 0,6 2 50 0,5 40 1 0,1 30 0,4 20 0,3 10 0,01 0,1 0,2 0,5 1 2 5 10 20 012345678 1 0,8 0,6 0,5 0,4 0,3 0,2 Current broken in A Power factor on breaking (cos ϕ) Current in A Example: 1 L/R = 20 ms 2 L/R with load protection diode An LC1-F185 contactor supplied with 115 V/50 Hz for a consumption of 55 VA or a current 3 Resistive load consumption equal to 0.1 A and cos ϕ = 0.3 For 0.1 A, curve 1 indicates durability of approximately 1.5 million operating cycles. + As the load is inductive, it is necessary to apply a reduction coefficient k to this number of RM4 cycles, as indicated by curve 2. For cos ϕ = 0.3 : k = 0.6 K The electrical durability therefore becomes: – 6 1.5 10 operating cycles x 0.6 = 900 000 operating cycles 3/31 Te Millions of operating cycles Reduction factor k Voltage in V Zelio Control - measurement and control relays Characteristics : Current measurement relays RM4-JA page 3/34 References : page 3/35 Presentation Dimensions, schemes : page 3/36 Setting-up : page 3/37 Functions These devices are designed to detect when a preset current threshold is exceeded, on a.c. or d.c. supply. They have a transparent, hinged flap on their front face to prevent any accidental alteration of the settings. This flap can be directly sealed. Type of Overcurrent Overcurrent or Measuring relay control undercurrent control (1) range RM4-JA01 Yes No 3 mA…1 A RM4-JA31 Yes Yes 3 mA…1 A RM4-JA01 RM4-JA32 Yes Yes 0.3 A…15 A Applications: - excitation control of d.c. machines, - control of load state of motors and generators, 3 - control of current drawn by a 3-phase motor, - monitoring of heating or lighting circuits, - control of pump draining (undercurrent), - control of overtorque (crushers). - monitoring of electromagnetic brakes or clutches. Description RM4-JA01 RM4-JA31 RM4-JA32 Width 22.5 mm Width 22.5 mm Width 45 mm RM4-JA32 1 1 1 2 2 2 R 3 R 3 R U U U 4 4 1 Adjustment of current threshold as % of setting range max. value. 2 Hysteresis adjustment from 5 to 30 % (2). 3 Fine adjustment of time delay as % of setting range max. value. 4 10-position switch combining: - selection of the timing range: 1 s, 3 s, 10 s, 30 s, no time delay. - selection of overcurrent (>) or undercurrent (<) detection. See table below. R Yellow LED: indicates relay state. U Green LED: indicates that supply to the RM4 is on. Table showing details for switch 4 Switch Function Time delay position (t) < 0 Undercurrent detection No time delay < 1 Undercurrent detection 0.05 to 1 s < 3 Undercurrent detection 0.15 to 3 s < 10 Undercurrent detection 0.5 to 10 s < 30 Undercurrent detection 1.5 to 30 s > 0 Overcurrent detection No time delay > 1 Overcurrent detection 0.05 to 1 s > 3 Overcurrent detection 0.15 to 3 s > 10 Overcurrent detection 0.5 to 10 s > 30 Overcurrent detection 1.5 to 30 s (1) Selection by switch on front face. (2) Value of current difference between energisation and de-energisation of the output relay (% of the current threshold to be measured). 3/32 Te Zelio Control - measurement and control relays Current measurement relays RM4-JA References : page 3/35 Presentation (continued) Dimensions, schemes : page 3/36 Setting-up : page 3/37 Operating principle The supply voltage is connected to terminals A1-A2. The current to be monitored is connected to terminals B1, B2, B3 and C. See diagram below. Hysteresis is adjustable between 5 and 30 %: for overcurrent h = (IS1 - IS2) / IS1, for undercurrent h = (IS2 - IS1) / IS1. A measuring cycle lasts only 80 ms, which allows rapid detection of changes in current. Relay set for overcurrent detection (RM4-JA01 or selector on “>” for model RM4-JA3i). If the current is greater than the setting threshold IS1, the output relay is energised with or without a time delay, depending on the model. When the current returns to a value IS2 below the threshold, depending on the hysteresis setting, the relay is instantaneously de-energised. Relay set for undercurrent detection (selector on “<”, model RM4-JA3i only). If the current is less than the threshold setting IS1, the output relay is energised with or without a time delay, depending on the model. When the current returns to a value IS2 above the threshold, depending on the hysteresis setting, the relay is instantaneously de-energised. 3 Function diagrams: Overcurrent detection Function “>” U supply A1-A2 IS1 Current IS2 measured 15-18 Relay 15-16 25-28 25-26 t < t t : time delay Undercurrent detection Function “<” U supply A1-A2 IS2 Current IS1 measured 15-18 Relay 15-16 25-28 25-26 t < t B1, B2, B3 C RM4-JA Load U drop < 1 V Note: The measurement ranges can be extended by means of a current transformer, the secondary of which is connected to the terminals of the corresponding RM4, or by means of a resistor connected in parallel with the measuring input (see example page 3/37 “Setting-up”). 3/33 Te Measurement circuit Zelio Control - measurement and control relays Current measurement relays RM4-JA References : page 3/35 Characteristics Dimensions, schemes : page 3/36 Setting-up : page 3/37 Power supply circuit characteristics Type of relay RM4-JA01 RM4-JA31 and RM4-JA32 Rated supply c 50/60 Hz V 24 110...130 220...240 24...240 110…130 220...240 380...415 voltage (Un) a V – – – 24...240 – – – Average c VA 2 1.9…3.3 2.7…3.5 1.5…3.3 1.9…3.3 2.7…3.4 2.7…3 consumption at Un a W––– 1.2 – – – Output relay and operating characteristics 3 Type of relay RM4-JA01 RM4-JA31 and RM4-JA32 Number of C/O contacts12 Output relay state Energised when: Energised when: current measured > threshold setting current measured > threshold setting (“>” function) current measured < threshold setting (“<” function) Setting accuracy of the As % of the full scale value: ± 5 % switching threshold Switching threshold drift % ≤ 0.06 per degree centigrade, depending on the permissible ambient temperature % ≤ 0.5, within the supply voltage range (0.85…1.1 Un) Hysteresis (adjustable) % 5…30 of the current threshold setting Setting accuracy of As % of the full scale value: ± 10 % the time delay Time delay drift % – ≤ 0.07 per degree centigrade, depending on temperature ≤ 0.5, within the supply voltage range (0.85…1.1 Un) Measuring cycle ms ≤ 80 Measuring input characteristics Internal input resistance and permissible overload depending on the current measurement ranges Type of relay RM4-JA01 and RM4-JA31 RM4-JA32 Measurement range 3…30 mA 10…100 mA 0.1…1 A 0.3…1.5 A 1…5 A 3…15 A c 50-60 Hz and a Internal input resistance Ri Ω 33 10 1 0.06 0.02 0.006 Permissible continuous overload A 0.05 0.15 1.5 2 7 20 Permissible non repetitive overload A 0.2 0.5 5 10 15 100 for t ≤ 3 s 3/34 Te Zelio Control - measurement and control relays Current measurement relays RM4-JA Available 2nd Presentation : pages 3/32 and 3/33 References Quarter 2001 Characteristics : page 3/34 Setting-up : page 3/37 Current measurement relays: overcurrent detection Time delay Current to be measured Width Output Basic reference. Weight depending on connection relay Complete with code indicating c or a the voltage code (1) mm kg None 3...30 mA 22.5 1 C/O RM4-JA01i 0.172 10...100 mA 0.1...1 A 3 RM4-JA01 Current measurement relays: overcurrent or undercurrent detection Adjustable Current to be measured Width Output Basic reference. Weight time delay depending on connection relay Complete with code indicating c or a the voltage code (1) smm kg 0.05...30 3...30 mA 22.5 2 C/O RM4-JA31ii 0.172 10...100 mA 0.1...1 A RM4-JA32 0.3...1.5 A 45 2 C/O RM4-JA32ii 0.204 1...5 A 3...15 A (1) Standard supply voltages RM4-JA01 Volts 24 110...130 220...240 c 50/60 Hz B F M RM4-JA31 Volts 24...240 110...130 220...240 380...415 and RM4-JA32 c 50/60 Hz MW F M Q a MW ––– 3/35 Te Zelio Control - measurement and control relays Current measurement relays RM4-JA Presentation : pages 3/32 and 3/33 Dimensions, schemes Characteristics : page 3/34 Setting-up : page 3/37 Dimensions Dimensions Rail mounting Screw fixing RM4-JA (common side view) RM4-JAi1 RM4-JA32 80 22,5 45 89,5 82 Ş4 3 Schemes, connection Terminal blocks RM4-JA01 RM4-JA31 RM4-JA32 A1 A2 C A1 A2 C B1 B2 B3 A1 A2 C B1 B2 B3 B1 B2 B3 C C C 28 26 25 18 16 15 18 16 15 18 16 15 28 26 25 A1-A2 Supply voltage Connection and current values to be measured, depending on type of RM4-JA B1, B2. Currents to be measured RM4-JA01 B1-C 3…30 mA RM4-JA32 B1-C 0.3…1.5 A B3, C (see table opposite) and RM4-JA31 B2-C 10…100 mA B2-C 1…5 A B3-C 0.1…1 A B3-C 3…15 A Application schemes Example: detection of blockage on a crusher (overcurrent function) Current measured ≤ 15 A Current measured > 15 A Q1 Q1 Q2 Q2 A1 B3 A1 B3 C C A2 A2 RM4-JA3 RM4-JA3 KM1 KM1 Stop Stop KM1 KM1 Overtorque Start Overtorque Start M1 M1 3 3 KM1 KM1 N N 3/36 Te B1 A1 B2 U1 2 1 2/T1 1 2 1/L1 A2 B3 V1 4 3 4/T2 3 4 3/L2 16 W1 18 15 6 5 6/T3 5 6 5/L3 26 25 28 A1 B1 B2 16 78 A2 B3 15 18 16 18 15 26 28 25 78 A1 B1 B2 U1 A2 B3 2 1 2/T1 1 2 1/L1 V1 4 3 4/T2 3 4 3/L2 16 18 15 W1 6 5 6/T3 5 6 5/L3 26 28 25 26 25 28 16 15 18 6 78 6 Zelio Control - measurement and control relays Presentation : Current measurement relays RM4-JA pages 3/32 and 3/33 Characteristics : page 3/34 Setting-up References : page 3/35 Dimensions, schemes : page 3/36 Example of overcurrent to be measured Overcurrent threshold at: 13 A. Output relay time delay: 5 s. Reset current threshold: 11 A. Supply voltage: 127 V a. i Product selected RM4-JA32MW Connection of current to be measured B3-C (3 to 15 A) 1 2 R 3 U 4 3 Adjustments: i Adjustment of function and timing range, switch 4 : - determine whether overcurrent or undercurrent detection is required; in this example, overcurrent. - determine the timing range, immediately greater than the time required; in this example, 10 s. - position switch 4 according to the above 2 criteria; in this example, switch 4 on > 10. i Fine adjustment of time delay: Depending on the max. range setting displayed at 4 (in this example: 10 s) use potentiometer 3 to set the required time delay as a % of value 4. In this example, the required time = 5 s therefore : t x 100 5 x 100 = = 50 % Set the time delay potentiometer 3 to 50. 4 10 i Set the current threshold setting potentiometer 1 as a percentage of the maximum value of the measuring range selected when wiring. In this example: wiring B3-C, max. value of measuring range = 15 A, therefore: 13 x 100 Setting 1 == 87 % Set the current threshold setting potentiometer 1 to 87. 15 i Set the hysteresis 2 as a % of the threshold value; in this example: 13 - 11 Setting 2 = = 15.4 % Set the hysteresis 2 to 15 (13 - 11 = 2 i.e. 15.4 % of the current to be measured). 13 Extension of the measuring range d.c. or a.c. supply RM4-JA I Im B1 Simply connect a resistor “Rs” to terminals B1-C (or B2, B3-C) on the measuring input. The relay energisation threshold will be towards the middle of the setting potentiometer range if the value of Rs is in the Ri region of: Rs C Ri Rs = where : Ri Internal resistance of input B1-C. (2I/Im) - 1 Im Maximum value of threshold setting range. I Current threshold to be measured. 2 Power dissipated by Rs: P = Rs (I -Im/2) Application: Use of relay RM4-JA31ii (10 to 100 mA). Connection B2-C to measure a threshold of 1 A, knowing that Ri = 10 Ω for this rating and that Im = 100 mA 10 The value of Rs will be: = 0.526 Ω (2 x 1/0.1) - 1 0.1 2 P = (1 - ) x 0.526 i.e. 0.47 W 2 Select a resistor Rs capable of dissipating at least twice the calculated value, i.e. 1 W for this example, in order to limit temperature rise. On an a.c. supply, it is also possible to use a current transformer. 3/37 Te Zelio Control - measurement and control relays Characteristics: Voltage measurement relays RM4-UA page 3/40 References: page 3/41 Presentation Dimensions, schemes: page 3/42 Setting-up: page 3/43 Functions These devices are designed to detect when a preset voltage threshold is exceeded, on a.c. or d.c. supply. They have a transparent, hinged flap on their front face to prevent any accidental alteration of the settings. This flap can be directly sealed. Type of Overvoltage Overvoltage or Measuring relay control undervoltage control (1) range RM4-UA0i Yes No 50 mV…500 V RM4-UA3i Yes Yes 50 mV…500 V RM4-UA01 Applications: - d.c. motor overspeed control, - battery monitoring, 3 - monitoring of a.c. or d.c. supplies, - speed monitoring (with tacho-generator). Presentation RM4-UA0i RM4-UA3i Width 22.5 mm Width 22.5 mm 1 1 2 2 R R 3 U U 4 1 Adjustment of voltage threshold as % of setting range max. value. 2 Hysteresis adjustment from 5 to 30 % (2). 3 Adjustment of time delay as % of setting range max. value. 4 Switch combining: - selection of the timing range: 1s, 3s, 10s, 30s, no time delay, - selection of overvoltage (>) or undervoltage (<) detection. See table below. R Yellow LED: indicates relay state. U Green LED: indicates that supply to the RM4 is on. Table showing details for switch 4 Switch Function Time delay position (t) < 0 Undervoltage detection No time delay < 1 Undervoltage detection 0.05 to 1 s < 3 Undervoltage detection 0.15 to 3 s < 10 Undervoltage detection 0.5 to 10 s < 30 Undervoltage detection 1.5 to 30 s > 0 Overvoltage detection No time delay > 1 Overvoltage detection 0.05 to 1 s > 3 Overvoltage detection 0.15 to 3 s > 10 Overvoltage detection 0.5 to 10 s > 30 Overvoltage detection 1.5 to 30 s (1) Selection by switch on front face. (2) Value of voltage difference between energisation and de-energisation of the output relay (% of the voltage threshold to be measured). 3/38 Te Zelio Control - measurement and control relays Characteristics: Voltage measurement relays RM4-UA page 3/40 References: page 3/41 Presentation (continued) Dimensions, schemes: page 3/42 Setting-up: page 3/43 Operating principle The supply voltage is connected to terminals A1-A2. The voltage to be monitored is connected to terminals B1, B2 or B3 and C. Hysteresis is adjustable between 5 and 30 %: for overvoltage h = (US1 - US2) / US1, for undervoltage h = (US2 - US1) / US1. A measurement cycle lasts only 80 ms, which allows rapid detection of changes in voltage. Relays set for overvoltage detection (RM4-UA0i or selector on “>” for model RM4-UA3i): If the voltage is greater than the threshold setting US1, the output relay is energised, with or without a time delay. When the voltage returns to a value US2 below the threshold, depending on the hysteresis setting, the relay is instantaneously de-energised. Relays set for undervoltage detection (selector on “<”, model RM4-UA3i only): If the voltage is less than the threshold setting US1, the output relay is energised, with or without a time delay. When the voltage returns to a value US2 above the threshold, depending on the hysteresis setting, the relay is de-energised. 3 Function diagrams Overvoltage control Function “>” U supply A1-A2 US1 US2 Voltage 15-18 measured 15-16 Relay 25-28 25-26 t: time delay t < t Undervoltage control Function “<” U supply A1-A2 US2 US1 Voltage measured 15-18 15-16 Relay 25-28 25-26 t < t Note: the measurement ranges can be extended above 500 V by adding a resistor, see page 3/43. The measurement range on c supply can be extended by means of a voltage transformer, the secondary of which is connected to the measuring terminals of the corresponding RM4 . 3/39 Te Zelio Control - measurement and control relays Presentation: Voltage measurement relays RM4-UA pages 3/38 and 3/39 References: page 3/41 Characteristics Dimensions, schemes: page 3/42 Setting-up: page 3/43 Power supply circuit characteristics Type of relay RM4-UA0i RM4-UA3i Rated supply c 50/60 Hz V 24 110...130 220...240 24...240 110…130 220...240 380...415 voltage (Un) a V – – – 24...240 – – – Average c VA 2 1.9…3.3 2.7…3.5 1.5…3.3 1.9…3.3 2.7…3.4 2.7…3 consumption at Un a W––– 1.2 – – – Output relay and operating characteristics 3 Type of relay RM4-UA0i RM4-UA3i Number of C/O contacts12 Output relay state Energised when: Energised when: voltage measured > threshold setting voltage measured > threshold setting (“>” function ) voltage measured < threshold setting (“<” function) Setting accuracy of the As % of the full scale value: ± 5 % switching threshold Switching threshold drift % ≤ 0.06 per degree centigrade, depending on the permissible ambient temperature % ≤ 0.5, within the supply voltage range (0.85…1.1 Un) Hysteresis (adjustable) % 5…30 of the voltage threshold setting Setting accuracy of As % of the full scale value: ± 10 % the time delay Time delay drift % – ≤ 0.5, within the supply voltage range (0.85…1.1 Un) ≤ 0.07 per degree centigrade, depending on the rated operating temperature Measuring cycle ms ≤ 80 Measuring input characteristics Internal input resistance and permissible overload depending on the current measurement ranges Type of relay RM4-UAi1 RM4-UAi2 RM4-UAi3 Measurement range V 0.05…0.5 0.3…3 0.5…5 1…10 5…50 10…100 30…300 50…500 c 50-60 Hz and a Internal input resistance Ri kΩ 6.6 43 71 23 112 225 668 1111 Permissible continuous overload V 20 60 80 90 150 300 400 550 Permissible non repetitive overload V 25 80 100 100 200 400 500 550 for t ≤ 1 s 3/40 Te Zelio Control - measurement and control relays Presentation: Voltage measurement relays RM4-UA pages 3/38 and 3/39 Available 2nd Characteristics: page 3/40 References Quarter 2001 Dimensions, schemes: page 3/42 Setting-up: page 3/43 Voltage measurement relays: overvoltage detection Time delay Voltage to be measured Width Output Basic reference. Weight depending on connection relay Complete with code indicating c or a the voltage code (1) Vmm kg None 0.05...0.5 22.5 1 C/O RM4-UA01i 0.168 0.3…3 0.5…5 1...10 22.5 1 C/O RM4-UA02i 0.168 5…50 10…100 3 30...300 22.5 1 C/O RM4-UA03i 0.168 50…500 RM4-UA01 Voltage measurement relays: overvoltage or undervoltage detection Adjustable Voltage to be measured Width Output Basic reference. Weight time delay depending on connection relay Complete with code indicating c or a the voltage code (1) sV mm kg 0.05...30 0.05...0.5 22.5 2 C/O RM4-UA31ii 0.168 0.3…3 0.5…5 1...10 22.5 2 C/O RM4-UA32ii 0.168 5…50 10…100 30...300 22.5 2 C/O RM4-UA33ii 0.168 50…500 (1) Standard supply voltages RM4-UA0i Volts 24 110...130 220...240 c 50/60 Hz B F M RM4-JA3i Volts 24...240 110...130 220...240 380...415 c 50/60 Hz MW F M Q a MW ––– 3/41 Te Zelio Control - measurement and control relays Presentation: Voltage measurement relays RM4-UA pages 3/38 and 3/39 Characteristics: page 3/40 Dimensions, schemes References: page 3/41 Setting-up: page 3/43 Dimensions Dimensions Rail mounting Screw fixing RM4-UA 80 22,5 89,5 3 82 Ş4 Schemes, connection Terminal blocks RM4-UA01, UA02 RM4-UA03 RM4-UA31, UA32 RM4-UA33 A1 A2 C A1 A2 C A1 A2 C A1 A2 C B1 B2 B3 B2 B3 B1 B2 B3 B2 B3 C C C C 28 26 25 28 26 25 18 16 15 18 16 15 18 16 15 18 16 15 A1-A2 Supply voltage Connection and voltage values to be measured, depending on type of RM4-UA B1, B2. Voltages to be measured RM4-UAi1 B1-C 0.05…0.5 V RM4-UAi2 B1-C 1…10 V RM4-UAi3 B2-C 30…300 V B3, C (see table opposite) B2-C 0.3…3 V B2-C 5…50 V B3-C 50…500 V B3-C 0.5…5 V B3-C 10…100 V Application scheme Example: overspeed monitoring (undervoltage function) Q1 Q3 Q4 2 1 1 2 A1 B1 U Tacho- Q2 generator 2 1 C v A2 RM4-UA KM1 Stop Overspeed Start KM1 M1 KM1 3 3/42 Te U1 2 1 2 1/L1 B1 A1 V1 B2 4 3 4 3/L2 A2 B3 W1 6 6 5 5/L3 16 18 15 78 B2 A1 A2 B3 26 25 28 16 18 15 16 15 18 B1 A1 B2 A2 B3 16 18 15 26 28 25 A1 B2 A2 B3 16 18 15 26 28 25 6 78 6 Zelio Control - measurement and control relays Presentation: Voltage measurement relays RM4-UA pages 3/38 and 3/39 Characteristics: page 3/40 Setting-up References: page 3/41 Dimensions, schemes: page 3/42 Example of undervoltage to be measured Undervoltage threshold to be measured: 12 V a. Time delay of the output relay: 20 s. Reset voltage threshold: 13.2 V. Supply voltage: 230 V c 60 Hz. i Product selected RM4-UA32M Connection of voltage to be measured B2-C (5 to 50 V) 1 2 R 3 U 4 3 Adjustments: i Adjustment of function and timing range, switch 4: - determine the timing range, immediately greater than the time required, in this example 30 s. - determine whether overvoltage or undervoltage detection is required, in this example undervoltage. - position switch 4 according to the above 2 criteria, in this example, switch 4 on < 30. i Fine adjustment of time delay: Depending on the max. range setting displayed at 4 (in this example: 30 s) use potentiometer 3 to set the required time delay as a % of value 4. In this example, the required time = 20 s therefore: t x 100 = = 66 % Set the time delay potentiometer 3 to 66. 20 x 100 4 30 i Set the voltage threshold setting potentiometer 1 as a percentage of the maximum value of the measuring range selected when wiring. In this example: wiring B2-C, max. value of measuring range = 50 V, therefore: Setting 1 == 24 % Set the voltage threshold setting potentiometer 1 to 24. 12 x 100 50 i Set the hysteresis 2 as a % of the threshold value; in this example: Setting 2 = = 10 % Set the hysteresis 2 to 10. 13.2 - 12 12 Extension of the measuring range d.c. or a.c. supply RM4-UA33 Simply connect an additional resistor (Rs) in series with the measuring input B3 or C. Rs C If the value of Rs is in the region of: Ri U > 500 V Rs = Ri ( - 1) where: Ri Internal resistance of input B3-C. U B3 Um Maximum value of threshold setting range. Um U Voltage threshold to be measured. The tripping threshold of the relay will be towards the maximum graduation on the threshold setting potentiometer. In general, the power consumed by the resistor does not exceed 0.5 W. For a.c. voltages, it is also possible to use a voltage transformer. Supply by the measured voltage For monitoring mains and power supplies, the RM4-UA can be supplied by the voltage to be controlled, provided that: - the measurement threshold is within the operating range of the product's power supply (0.85…1.1 Uc). B2/B3 - variations of the voltage to be measured are compatible with the supply and measurement voltage ranges. RM4-UA C 3/43 Te A2 A1 Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Characteristics : page 3/47 Presentation References : page 3/48 Dimensions, schemes : page 3/49 Functions These devices are designed to monitor 3-phase supplies and to protect motors and other loads against the faults listed in the table below. They have a transparent, hinged flap on their front face to prevent any accidental alteration of the settings. This flap can be directly sealed. RM4-TG RM4-TU RM4-TR RM4-TA Monitoring of rotational direction of phases Detection of complete failure of one or more of the phases Undervoltage detection RM4-T Overvoltage and undervoltage detection (2 thresholds) Detection of phase asymmetry (imbalance) Function performed 3 Function not performed Applications i Control for connection of moving equipment (site equipment, agricultural equipment, refrigerated trucks). i Control for protection of persons and equipment against the consequences of reverse running (lifting, handling, elevators, escalators, etc.). i Control of sensitive 3-phase supplies. i Protection against the risk of a driving load (phase failure). i Normal/emergency power supply switching. Presentation RM4-TG RM4-TU U >U A 3 1 1 U Red LED: overvoltage fault < U Red LED: undervoltage fault P Red LED: phase failure or incorrect rotational direction of phases. 3/44 Te Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Characteristics : page 3/47 Presentation (continued) References : page 3/48 Dimensions, schemes : page 3/49 Operating principle The supply voltage to be monitored is connected to terminals L1, L2, L3 of the product. There is no need to provide a separate power supply for RM4-T relays; they are self-powered by terminals L1, L2, L3. i Monitoring rotational direction of phases and detection of complete failure of one of more of the phases (RM4-T all models) When terminals L1, L2, L3 are energised, the relay is energised and the yellow LED comes on if the rotational direction of phases is correct and if all 3 phases are present. If one or more of the phases have failed or if the rotational direction is incorrect, the relay is not energised at switch- on. In normal operation (no fault) the relay is energised; it de-energises instantaneously in the event of failure of one or more of the phases (any time delay set is not active on these faults). In the event of failure or absence of a single phase, a voltage greater than the detection threshold (≈ 130 V on RM4-TG, undervoltage threshold setting on RM4-TU and RM4-TR) can be generated back through the control circuit, thus preventing detection of the phase failure. In this case, we recommend the use of RM4-TA relays. The absence of a phase is signalled, on RM4-TR and RM4-TA, by illumination of led “P”. 3 i Overvoltage and undervoltage detection (RM4-TR): In normal operation, the relay is energised and LEDs “U” and “R” are illuminated. If the average of the 3 voltages between phases goes outside the range to be monitored, the output relay is de- energised: - overvoltage: the Red LED “> U” illuminates. - undervoltage: the Red LED “< U” illuminates. When the supply returns towards its rated value, the relay is re-energised according to the hysteresis value (5%) and the corresponding red LED goes out. A selector switch allows selection of an adjustable time delay from 0.1 s to 10 s. With function transient “over” or “under” voltages are not taken into account. With function all variations above or below are taken into account and re-energisation of the relay is delayed. In all cases, in order to be detected, the duration of the overvoltage or undervoltage must be greater than the measuring cycle time (80 ms). Function diagram (RM4-TR31, RM4-TR32) RM4-TR31 RM4-TR32 < t Setting > U 0.95 x Setting > U 1.05 x Setting < U Setting < U < t 0 Volt UL1 L2 L3 tt 15/18 25/28 Function 15/16 25/26 tt t t t 15/18 25/28 Function 15/16 25/26 t: time delay Function diagram (RM4-TR33, RM4-TR34) RM4-TR33 RM4-TR34 < t TR33 TR34 242 V 440 V 230 V 418 V 208 V 378 V 198 V 360 V < t 0 Volt UL1 L2 L3 t t 15/18 25/28 Function 15/16 25/26 tt t tt 15/18 25/28 Function 15/16 25/26 t: time delay 3/45 Te Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Characteristics : Presentation (continued) page 3/47 References : page 3/48 Dimensions, schemes : page 3/49 Operating principle (continued) i Undervoltage detection only (RM4-TU) In normal operation, the output relay is energised and the yellow LED is illuminated. If the average of the 3 voltages between phases is less than the undervoltage threshold setting, the relay is de- energised after 550 ms and the red LED “< U” illuminates. Function diagram 1.05 x Setting < U Setting < U < t 0 volt UL1 L2 L3 t 15/18 25/28 15/16 25/26 t: fixed time delay = 550 ms 3 i Detection of phase asymmetry (RM4-TA) In normal operation, the output relay is energised and the yellow and green LEDs are illuminated. In the event of an asymmetry fault, after a time delay set between 0.1 s and 10 s (on RM4-TA3 only), the output relay is de-energised, the yellow LED goes out and red LED “A” illuminates (RM4-TA3i only). The relay re-energises when the asymmetry value measured is less than half of the asymmetry value setting (hysteresis). Function diagram Asymmetry > L1 L2 L3 Asymmetry > set threshold set threshold L3 L2 L1 L3 L2 L1 15-18 15-16 Relay 25-28 25-26 t t t: time delay Example: asymmetry set at 10 %, mains supply voltage 400 V - relay de-energisation threshold: 400 - 10 % = 360 V. 10 % - relay re-energisation threshold: 400 V – –––– = 380 V. 2 3/46 Te Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Presentation : pages 3/44 to 3/46 Characteristics References : page 3/48 Dimensions, schemes : page 3/49 Type of relay RM4-TG RM4-TU RM4-TR RM4-TA Output relay and operating characteristics Number of C/O contacts 222 RM4-TA3i: 2 RM4-TA0i: 1 Output relay state Energised during Energised during Energised during Energised during fault free fault free fault free fault free operation. operation. operation. operation. De-energised or De-energised on De-energised on De-energised on unable to detection of detection of detection of energise on undervoltage or overvoltage, asymmetry detection of rotational direction undervoltage or fault, phase rotational direction fault or rotational failure or fault or failure of failure of one or direction fault or rotational one or more more phases phase failure direction fault 3 phases Accuracy of switching As % of the set value – ± 3 % ± 3 % ± 3 % threshold setting Switching threshold drift Depending on the – ≤ 0.06 % per ≤ 0.06 % per ≤ 0.06 % per permissible ambient degree centigrade degree centigrade degree centigrade temperature Within the – ≤ 0.5 % ≤ 0.5 % ≤ 0.5 % measuring range Accuracy of time delay As % of the full scale – ± 10 % ± 10 % ± 10 % setting value Time delay drift Within the – ≤ 0.5 % ≤ 0.5 % ≤ 0.5 % measuring range Depending on the – ≤ 0.07 % per ≤ 0.07 % per ≤ 0.07 % per rated operational degree centigrade degree centigrade degree centigrade temperature Hysteresis Fixed – About 5 % of the About 5 % of the About 50 % of the de-energisation de-energisation asymmetry threshold threshold percentage Measuring cycle ms ≤ 80 ≤ 80 ≤ 80 ≤ 80 Measuring input characteristics Minimum operational voltage (1) L1 L2 V 140 RM4-TU01: 160 RM4-TR31, RM4-TA01, or RM4-TR33: 160 RM4-TA31: 160 L2 L3 or RM4-TU02: 290 RM4-TR32, RM4-TA02, L1 L3 RM4-TR34: 290 RM4-TA32: 290 Maximum permissible L1 L2 L3 V 580 RM4-TU01: 300 RM4-TR31, RM4-TA01, voltage between phases RM4-TR33: 300 RM4-TA31: 300 RM4-TU02: 580 RM4-TR32, RM4-TA02, RM4-TR34: 580 RM4-TA32: 580 (1) Minimum voltage required for operation of indicators and of the time delay. 3/47 Te Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Presentation : pages 3/44 to 3/46 References Characteristics : page 3/47 Dimensions, schemes : page 3/49 Control relays: rotational direction and presence of phases Time delay Rated Width Output Reference Weight mains supply relay voltage (1) sV mm kg None 200...500 22.5 2 C/O RM4-TG20 0.110 50/60 Hz Control relays: rotational direction and presence of phases + undervoltage Time delay Rated Control Width Output Reference Weight mains supply threshold relay RM4-TG20 voltage (1) sV V mm kg None 200…240 Undervoltage 22.5 2 C/O RM4-TU01 0.110 50/60 Hz 160…220 3 380…500 Undervoltage 22.5 2 C/O RM4-TU02 0.110 50/60 Hz 300…430 Control relays: rotational direction and presence of phases + overvoltage and undervoltage Relays with fixed voltage thresholds Adjustable Rated Control Width Output Reference Weight time delay mains supply threshold relay voltage (1) sV V mm kg 0.1...10 220 Undervoltage 22.5 2 C/O RM4-TR33 0.110 50/60 Hz 198 Overvoltage 242 400 Undervoltage 22.5 2 C/O RM4-TR34 0.110 50/60 Hz 360 Overvoltage 440 Relays with adjustable voltage thresholds RM4-TR33 Adjustable Rated Control Width Output Reference Weight time delay mains supply threshold relay voltage (1) sV V mm kg 0.1…10 200…240 Undervoltage 22.5 2 C/O RM4-TR31 0.110 50/60 Hz 160…220 Overvoltage 220…300 380…500 Undervoltage 22.5 2 C/O RM4-TR32 0.110 50/60 Hz 300…430 Overvoltage 420…580 Control relays: rotational direction and presence of phases + asymmetry Time delay Rated Control Width Output Reference Weight on mains supply threshold relay de-energisation voltage (1) sV % mm kg Fixed 200...240 Asymmetry 22.5 1 C/O RM4-TA01 0.110 0.5 50/60 Hz 5…15 380…500 Asymmetry 22.5 1 C/O RM4-TA02 0.110 50/60 Hz 5…15 Adjustable 200...240 Asymmetry 22.5 2 C/O RM4-TA31 0.110 0.1…10 50/60 Hz 5…15 380...500 Asymmetry 22.5 2 C/O RM4-TA32 0.110 50/60 Hz 5…15 RM4-TA01 (1) Can be used on other supply voltages provided that the minimum operational voltages, maximum voltage between phases and compatibility with the control threshold ranges are complied with, see page 3/47. 3/48 Te Zelio Control - measurement and control relays 3-phase supply control relays RM4-T Presentation : pages 3/44 to 3/46 Dimensions, schemes Characteristics : page 3/47 References : page 3/48 Dimensions Rail mounting Screw fixing RM4-T 80 22,5 89,5 82 Ş4 3 Schemes, connection Terminal blocks RM4-TG20, TU0i i i i i RM4-TR3i i i i i, TA3i i i i i RM4-TA0i i i i i L1 L2 L3 L1 L2 L3 L1 L2 L3 28 (24) 25 (21) 26 (22) 28 25 26 18 (14) 15 (11) 16 (12) 18 15 16 18 15 16 L1, L2, L3 Supply to be monitored L1, L2, L3 Supply to be monitored L1, L2, L3 Supply to be monitored st st st 15(11)-18(14) 1 C/O contact 15-18 1 C/O contact 15-18 1 C/O contact 15(11)-16(12) of the output relay 15-16 of the output relay 15-16 of the output relay nd nd 25(21)-28(24) 2 C/O contact 25-28 2 C/O contact 25(21)-26(22) of the output relay 25-26 of the output relay Application scheme Example Q1 L3 L2 L1 RM4-T Q2 Stop Start KM1 Fault KM1 N KM1 M1 3 3/49 Te L1 L2 L3 16 (12) U1 2 1 2/T1 1 2 1/L1 18 15 (14) (11) V1 4 3 4/T2 3 4 3/L2 26 (22) W1 6 5 6/T3 5 6 5/L3 25 28 (24) (21) 26 25 28 78 16 15 18 L1 L2 L3 16 18 15 26 28 25 L1 L2 L3 16 18 15 6 78 6 Zelio Control - measurement and control relays Single-phase supply control relays RM4-UB Characteristics : page 3/51 Presentation References : page 3/52 Dimensions, schemes : page 3/53 Functions These devices are designed for monitoring single-phase mains and power supplies. They have a transparent, hinged flap on their front face to prevent any accidental alteration of the settings. The flap can be directly sealed. Applications - Protection of electronic or electromechanical devices against overvoltage and undervoltage. - Normal/emergency power supply switching. RM4-UB Presentation RM4-UB 3 >U 1 U Red LED: overvoltage fault < U Red LED: undervoltage fault Operating principle The supply voltage to be monitored is connected to terminals L1, L3 of the product. There is no need to provide a separate power supply for RM4-UB relays; they are self-powered by terminals L1, L2, L3. If the voltage goes outside the range to be monitored, the output relay is de-energised: - overvoltage: red LED “> U” illuminates. - undervoltage: red LED “< U” illuminates. When the supply returns towards its rated value, the relay is re-energised according to the hysteresis value (5%) and the corresponding red LED goes out. A selector switch allows selection of an adjustable time delay from 0.1 s to 10 s. With function , transient “over” or “under” voltages are not taken into account. With function , all variations above or below are taken into account and re-energisation of the relay is delayed. In all cases, in order to be detected, the duration of the overvoltage or undervoltage must be greater than the measuring cycle time (80 ms). Function diagram RM4-UB34 RM4-UB35 < t Setting > U 0.95 x Setting > U 1.05 x Setting < U Setting < U < t 0 Volt UL1 L3 tt 15/18 25/28 Function 15/16 25/26 tt t t t 15/18 25/28 Function 15/16 25/26 t: time delay 3/50 Te Zelio Control - measurement and control relays Single-phase supply control relays RM4-UB Presentation : page 3/50 Characteristics References : page 3/52 Dimensions, schemes : page 3/53 Output relay and operational characteristics Number of C/O contacts 2 Output relay state Energised during fault free operation. De-energised on detection of an overvoltage or undervoltage fault. Setting accuracy of As % of the setting value ± 3 % switching threshold Switching threshold drift Depending on the ≤ 0.06 % per degree centigrade permissible ambient 3 temperature Within the ≤ 0.5 % measuring range Accuracy of time delay As % of the full scale ± 10 % setting value Time delay drift Within the ≤ 0.5 % measuring range Depending on the ≤ 0.07 % per degree centigrade rated operational temperature Hysteresis Fixed About 5 % of the de-energisation threshold Measuring cycle ms ≤ 80 Measuring input characteristics Minimum operational voltage V RM4-UB34: 60 RM4-UB35: 160 Maximum permissible V RM4-UB34: 300 voltage between L1 and L3 RM4-UB35: 300 3/51 Te Zelio Control - measurement and control relays Single-phase supply control relays RM4-UB Available 2nd Presentation : page 3/50 References Quarter 2001 Characteristics : page 3/50 Dimensions, schemes : page 3/53 Relays with adjustable thresholds Adjustable Rated Control Width Output Reference Weight time delay mains supply threshold relay voltage (1) sV V mm kg 0.1…10 100…200 Undervoltage 22.5 2 C/O RM4-UB34 0.110 50/60 Hz 80…120 Overvoltage 160…220 RM4-UB 3 180…270 Undervoltage 22.5 2 C/O RM4-UB35 0.110 50/60 Hz 160…220 Overvoltage 220…300 (1) Can be used on other supply voltages provided that the minimum operational voltages, maximum voltage between phases and compatibility with the control threshold ranges are complied with, see page 3/51. 3/52 Te Zelio Control - measurement and control relays Single-phase supply control relays RM4-UB Presentation : page 3/50 Dimensions, schemes Characteristics : page 3/51 References : page 3/52 Dimensions Rail mounting Screw fixing RM4-UB 80 22,5 89,5 82 Ş4 3 Scheme, connection Terminal block RM4-UB L1 L3 28 25 26 18 15 16 L1, L3 Supply to be monitored st 15-18 1 C/O contact 15-16 of the output relay nd 25-28 2 C/O contact 25-26 of the output relay Application scheme Example Q1 1/L1 2 3/L2 4 5/L3 6 Q2 Q2 Q4 RM4-UB To sensitive loads 3/53 Te L1 L3 16 1 2 18 15 26 28 25 1 2 78 L3 L1 16 15 18 6 78 6 Zelio Control - measurement and control relays Characteristics : Liquid level control relays page 3/56 References : page 3/56 Presentation Dimensions : page 3/57 Setting-up : page 3/57 Functions These devices monitor the levels of conductive liquids. They control the actuation of pumps or valves to regulate levels, and are also suitable for protecting submersible pumps against running empty, or protecting tanks from “overflow”. They can also be used to control dosing of liquids in mixing processes and to protect heating elements in the event of non immersion. They have a transparent, hinged flap on their front face to prevent any accidental alternation of the settings. This flap can be directly sealed. i Compatible liquids: - spring, town, industrial and sea water, - metallic, acid or basic salt solutions, - liquid fertilizers, RM4-LG01 - non concentrated alcohol (< 40 %), - liquids in the food processing industry: milk, beer, coffee, etc. i Non-compatible liquids: - chemically pure water, 3 - fuels, liquid gasses (inflammable), - oil, concentrated alcohol (> 40 %), - ethylene, glycol, paraffin, varnish and paints. Description RM4-LG01 RM4-LA32 Width 22.5 mm Width 22.5 mm 1 2 2 R 3 R 3 RM4-LA32 U U 4 1 Fine adjustment of time delay (as % of maximum value of setting range). 2 Fine adjustment of response sensitivity (as % of maximum value of setting range). 3 Function selector switch: - empty or fill . 4 Switch combining: - selection of the response sensitivity range, - selection of time delay on energisation or on de-energisation of the relay. R Yellow LED: indicates relay state. U Green LED: indicates that supply to the RM4 is on Table showing details for switch 3 Switch Time delay Sensitivity position 500 On-delay High = 500 kΩ range 500 Off-delay High = 500 kΩ range 50 On-delay Medium = 50 kΩ range 50 Off-delay Medium = 50 kΩ range 5 On-delay Low = 5 kΩ range 5 Off-delay Low = 5 kΩ range 3/54 Te Zelio Control - measurement and control relays Liquid level control relays Characteristics : page 3/56 References : page 3/56 Presentation (continued) Dimensions : pages 3/57 Setting-up : page 3/57 Operating principle The operating principle is based on a change in the resistance measured between immersed or non immersed electrodes. Low resistance between electrodes: liquid present. High resistance between electrodes: no liquid present. The electrodes may be replaced by other sensors or probes which transmit values representing variations in resistance. The a.c. measuring voltage, which is < 30 V and galvanically insulated from the supply and contact circuits, ensures safe use and the absence of any electrolysis phenomena. RM4-L relays may be used: i For detection of a liquid level, operating with 2 electrodes, one reference electrode and one high level electrode, or an LA9-RM201 probe. Example: prevention of tank overflow. i For regulating a liquid level between a minimum and a maximum level, operating with 3 electrodes, or an LA9-RM201 probe. Example: water tower. The state of the output relay can be configured: i Empty function : the output relay is energised when high level electrode B2 is immersed and is de-energised when low level electrode B3 is “dry” (1). i Fill function : the output relay is energised when the low level electrode is “dry” and is de-energised when the high 3 level electrode is immersed (1). On model RM4-LA32, a time delay can be set on energisation or de-energisation of the output relay in order to raise the maximum level (function ) or to lower the minimum level (function ). This function also makes it possible to avoid pulsing of the output relay (wave effect) when operating with 2 electrodes. Empty function, maximum level detection (2 electrodes or 1 probe LA9-RM201) B1 B2 B1 B2 B1 B2 Time Type Function delay U supply RM4- switch 3 switch 4 A1/A2 15/18 LG01 – 15/16 t t 15/18 25/28 LA32 15/16 25/26 15/18 25/28 LA32 15/16 25/26 Empty function, regulation between a maximum and a minimum level (3 electrodes or 2 probes LA9-RM201) B1 B3 B2 B1 B3 B2 B1 B3 B2 B1 B3 B2 Time Type Function delay U supply RM4- switch 3 switch 4 A1/A2 15/18 LG01 – 15/16 t t 15/18 25/28 LA32 15/16 25/26 15/18 25/28 LA32 15/16 25/26 Fill function, maximum level detection (2 electrodes or 1 probe LA9-RM201) B1 B2 B1 B2 B1 B2 Time Type Function delay U supply RM4- switch 3 switch 4 A1/A2 15/18 LG01 – 15/16 t t 15/18 25/28 LA32 15/16 25/26 15/18 25/28 LA32 15/16 25/26 Empty function, regulation between a maximum and a minimum level (3 electrodes or 2 probes LA9-RM201) B1 B3 B2 B1 B3 B2 B1 B3 B2 B1 B3 B2 Time Function delay Type U supply switch 3 switch 4 RM4- A1/A2 15/18 LG01 – 15/16 t t 15/18 25/28 LA32 15/16 25/26 15/18 25/28 LA32 15/16 25/26 B1: reference electrode B2: high level electrode B3: low level electrode (1) When operating with 2 electrodes, the high level electrode performs both high and low level functions. 3/55 Te Zelio Control - measurement and control relays Liquid level control relays Available 2nd Presentation : pages 3/54 and 3/55 Characteristics, references Quarter 2001 Dimensions : page 3/57 Setting-up : page 3/57 Type of relay RM4-LG01 RM4-LA32 Power supply circuit characteristics Rated supply c 50/60 Hz V 24 110...130 220...240 380...415 24...240 24 110...130 220...240 380...415 voltage (Un) a V – ––– 24...240–– –– Average c VA 1.9 2.6 2.4 2.9 2.7 3.1 2.7 2.6 3.4 consumption at Un a W – ––– 2.4 –– –– Output relay and operating characteristics Number of C/O contacts 12 Output relay state Can be configured by switch: empty /fill Electrode circuit characteristics (1) 3 Sensitivity scale kΩ 5…100 (adjustable) 0.25…5 2.5…50 25…500 Maximum a.c. electrode V 24 24 voltage (peak to peak) Maximum current in mA1 111 the electrodes Maximum cable capacity nF 10 200 25 4 Maximum cable length m 100 1000 100 20 References Liquid level control relays Time delay Sensitivity Width Output Basic reference. Weight scale relay Complete with code indicating the voltage (2) kΩ mm kg None 5…100 22.5 1 C/O RM4-LG01i 0.165 RM4-LG01 Adjustable 0.25 ...5 22.5 2 C/O RM4-LA32ii 0.165 0.1...10 s 2.5 ...50 25 ...500 Liquid level control probe Type of installation Maximum operating Reference Weight temperature °C kg Suspended by cable 100 LA9-RM201 0.100 RM4-LA32 (1) The electrodes may also be incorporated in the probes. The probes are normally designed for fixing to a tank by means of a bracket with a seal (closed tanks) or suspended by their own electrical connecting cable (boreholes, etc.). See page 3/57 “Setting-up” Probe LA9-RM201. (2) Standard supply voltages RM4-LG01 Volts 24 110...130 220...240 380...415 c 50/60 Hz B F M Q RM4-LA32 Volts 24...240 24 110...130 220...240 380...415 c 50/60 Hz MW B F M Q LA9-RM201 a MW – – – – 3/56 Te Zelio control - measurement and control relays Liquid level control relays Presentation : pages 3/54 and 3/55 Dimensions, schemes, setting-up Characteristics : page 3/56 References : page 3/56 Dimensions Rail mounting Screw fixing RM4-LG01, LA32 80 22,5 89,5 82 Ş4 Probe LA9-RM201 150 3 Schemes, connection RM4-LG01 RM4-LA32 A1 15 25 A1 15 B1 B2 B3 B1 B2 B3 A1-A2 Supply voltage Electrodes and level controlled B1, B2, B3 Electrodes (see table opposite) B1 Reference or tank earth 15-18 1st C/O contact electrode 15-16 of the output relay nd 25-28 2 C/O contact B2 High level 28 26 25-26 of the output relay 18 16 A2 18 16 A2 B3 Low level Setting-up i Select the empty /fill function according to the sequence to be performed. i If necessary, set potentiometer 1 to minimum (time delay). i Set potentiometer 2 to minimum; on RM4-LA select the lowest sensitivity range using potentiometer 4 (5 or 5 1 ). i With all the electrodes immersed, turn the sensitivity potentiometer towards maximum until the relay is energised ( 2 2 function) or de-energised ( function), then exceed the threshold by about 10 % to compensate for variation in the R 3 R 3 supply voltage. U U 4 If the relay is not able to energise, a higher sensitivity scale must be used (selector 4 on RM4-LA32) or relay RM4-LG must be replaced by an RM4-LA32 relay and the adjustment procedure must be started again. i Then check that the relay de-energises ( function) or energises ( function) as soon as electrodes B3 and B2 are out of the liquid. If the relay does not de-energise, select a lower sensitivity scale. i The electrode connection point must be protected against corrosion by sticking or sealing. In areas where thunder- RM4-LG01 RM4-LA32 storms are likely to occur, measures must also be taken to protect the electrode lines. Note: the high level can be raised by means of the adjustable time delay from 0.1 to 10 seconds with function . The low level can be lowered by means of this same time delay with function . Probe LA9-RM201 2-conductor cable in This probe is of the “suspended” type. It is coaxial, i.e. in addition to the normal (central) electrode, the stainless steel skirt cylindrical sheath can also act as earth (reference) electrode, which means that there is no need to install a separate reference probe. In (max.Ø 6.3 mm) this way, for controlling one level, only one probe is required instead of 2; for controlling 2 levels, only 2 probes are required instead of 3. The connecting cable must be of the “2-conductor” type, with common cylindrical PVC sheath, having a maximum Level electrode diameter of 6.3 mm. The skirt also acts as a ”calming chamber”, so avoiding inaccuracy due to an agitated surface of the liquid (waves). Maximum operating temperature: 100 °C. Reference electrode Probe LA9-RM201 can also be fixed on various containers (cisterns, tanks,...) by means of a bracket or other suitable (skirt) fixing device. Connection examples Control by electrodes Control by probes LA9-RM201 RM4-LG01 B2 B2 A1 B1 B2 B3 High level B3 B1 B1 Low level A2 1 level 2 levels 3/57 Te B1 A1 B2 A2 B3 16 18 15 Supply voltage 78 B1 A1 B1 B2 16 A2 B3 B2 B3 16 18 15 26 28 25 6 78 6