PLM01A01 01.13.04 Description Description Description Description Description 3 Phase V 3 Phase V 3 Phase Voltage Monitor oltage Monitor oltage Monitor 3 Phase V 3 Phase Voltage Monitor oltage Monitor The PLM Series continuously measures the voltage of each of the three phases. It separately PLM Series PLM Series PLM Series PLM Series PLM Series senses Undervoltage, Voltage Unbalance 2 Amp Motor Protector Motor Protector Motor Protector Motor Protector Motor Protector (including Phase Loss), and Phase Reversal. Fast Acting Protection is assured during periods of large Fuses average voltage fluctuations, or when regenerated voltages are present. Both Delta and Wye systems can be monitored; no connection to neutral is required. 380 V AC and 480 V AC units are encapsulated. Operation Operation Operation Operation Operation The output relay is energized and the LED glows when all voltages are acceptable and the phase F = Fuses sequence is correct. Under and unbalanced NO = Normally Open voltages (including phase loss) must be sensed NC = Normally Closed for a continuous trip delay period before the relay and the LED are de-energized. Re-energization ANSI Device #47/27 Dashed lines are internal connections. is automatic upon correction of the fault condition. Protects Against: Phase Loss, Phase Reversal, The output relay will not energize if a fault condition Undervoltage, & Unbalanced Voltages CAUTION: CAUTION: CAUTION: CAUTION: CAUTION: 2 amp max fast acting fuses must is sensed as power is applied. 8 Pin Plug-in Base be installed externally in series with each input. ASME A17.1 rule 210.6, NEMA MG1 14:30, 14:35, Adjustable Low Voltage Trip Point (3) (Bussman KTK-2 or equivalent) Factory Fixed Unbalance and Trip Delay IEEE C62.41-1991 Level B Line Voltages 200 ... 480 V AC, in 3 Ranges Approvals: SPDT Isolated 8 A Relay Contacts Or Ordering T dering Table able Or Or Ordering T dering T dering Table able able PLM PLM PLM PLM PLM X X X X X X X X X X X X X X X Field Adjustment: Field Adjustment: Field Adjustment: Field Adjustment: Field Adjustment: Set voltage adjustment knob Series Series Series Series Series Line V Line V Line V Line V Line Voltage oltage oltage oltage oltage V V V V Voltage Unbalance (Fixed) oltage Unbalance (Fixed) oltage Unbalance (Fixed) oltage Unbalance (Fixed) oltage Unbalance (Fixed) T T T T Trip Delay (Fixed) rip Delay (Fixed) rip Delay (Fixed) rip Delay (Fixed) rip Delay (Fixed) –6 6 6 6 6 - 240 V AC –Specify: 4 4 4 4 4, 5 5 5 5 5, 6 6 6 6 6, 7 7 7 7 7, or 8 8 8 8 8% at the desired operating line voltage. Apply power. –Specify from 2 2 2 2 2 ... 20 20 20 20 20 s in If the relay fails to energize, check wiring of all 3 –8 8 8 8 8 - 380 V AC 1 s increments phases, voltage, and phase sequence. If phase –9 9 9 9 9 - 480 V AC (Insert 0 0 0 0 0 before 1 1 1 1 1 ... 9 9 9 9 9) sequence is incorrect, swap any two wires. No further adjustment should be required. Example P/N: Example P/N: Example P/N: Example P/N: Example P/N: PLM6405 PLM6405 PLM6405 PLM6405 PLM6405 Technical Data Technical Data Technical Data Technical Data Technical Data Line Voltage Line Voltage Line Voltage Line Voltage Line Voltage Type 3 phase Delta or Wye with no connection to neutral Operating Voltage: UL CSA Model Adj. Line Voltage Range Line Voltage Max. Calibration Frequency UL CSA Model Adj. Line Voltage Range Line Voltage Max. Calibration Frequency UL CSA Model Adj. Line Voltage Range Line Voltage Max. Calibration Frequency UL CSA Model Adj. Line Voltage Range Line Voltage Max. Calibration Frequency UL CSA Model Adj. Line Voltage Range Line Voltage Max. Calibration Frequency • • 240 200 ... 240 V AC 270 V AC 60 Hz • 380 360 ... 430 V AC 480 V AC 50 Hz • • 480 400 ... 480 V AC 530 V AC 60 Hz Line Frequency 50 ... 60 Hz Phase Sequence ABC Low Voltage and Voltage Unbalance Low Voltage and Voltage Unbalance Low Voltage and Voltage Unbalance Low Voltage and Voltage Unbalance Low Voltage and Voltage Unbalance Type Voltage detection with delayed trip & automatic reset Low Voltage: Trip Voltage 88 ... 92% of adjusted line voltage Reset Voltage Plus 3% of trip voltage Voltage Unbalance: Trip Unbalance Factory fixed from 4 ... 8% Reset on Balance (%): Selected Unbalance 4 5 6 7 8 Inches (Millimeters) Reset 3.6 4.5 5.4 6.3 7.2 Note: Note: Note: Note: Note: A 60 Hz unit used on 50 Hz will shift by -1. A 50 Hz unit used on 60 Hz will shift by +1. (Ex: 4% unbalance on 60 Hz would be 3% unbalance on 50 Hz.) Trip Delay: Range Factory fixed from 2 ... 20 s Tolerance +/-15% Phase Reversal Phase Reversal Phase Reversal Phase Reversal Phase Reversal Response Time -- Phase Reversal ≤ 100 ms Reset Automatic Output Output Output Output Output Type Electromechanical relay Form Single pole double throw (SPDT) Accessories Accessories Accessories Accessories Accessories Rating 8 A resistive at 240 V AC Protection Protection Protection Protection Protection Surge IEEE C62.41-1991 Level B Isolation Voltage ≥ 2500 V RMS input to output Circuitry Encapsulated (380 & 480 V units only) Mechanical Mechanical Mechanical Mechanical Mechanical Mounting* 8 pin plug-in socket rated 600 V AC Package 3.2 x 2.39 x 1.78 in. (81.3 x 60.7 x 45.2 mm) 3-phase fuse block/disconnect Environmental Environmental Environmental Environmental Environmental Octal P/N: P0700-241 P/N: P0700-241 P/N: P0700-241 P/N: P0700-241 P/N: P0700-241 Operating Temperature 240 & 380 V AC: -40°C ... +60°C Panel mount kit 8-pin socket 2 AMP fuse 480 V AC: -40°C ... +50°C P/N: BZ1 P/N: BZ1 P/N: BZ1 P/N: BZ1 P/N: BZ1 P/N: OT08PC P/N: OT08PC P/N: OT08PC P/N: OT08PC P/N: OT08PC P/N: P0600-11 P/N: P0600-11 P/N: P0600-11 P/N: P0600-11 P/N: P0600-11 Storage Temperature -40°C ... +85°C Weight 240 V AC ≅ 6.1 oz (173 g) DIN rail P/Ns: P/Ns: P/Ns: P/Ns: P/Ns: C103PM (Al) C103PM (Al) C103PM (Al) C103PM (Al) C103PM (Al) 380 & 480 V AC ≅ 9.3 oz (264 g) 17322005 (Steel) 17322005 (Steel) 17322005 (Steel) 17322005 (Steel) 17322005 (Steel) *CAUTION: Select an octal socket rated for 600 V AC operation. See accessory page at the end of this section. 256 256 256 256 256