BULLETIN NO. DT7-F DRAWING NO. LP0237 REVISED 8/97 RED LION CONTROLS INTERNATIONAL HEADQUARTERS EUROPEAN HEADQUARTERS 20 Willow Springs Circle, York, Pa. 17402, (717) 767-6511 FAX: (717) 764-0839 892 Plymouth Road, Slough, Berkshire SL1 4LP Web site- http://www.redlion-controls.com E-mail- sales@redlion-controls.com ENGLAND +44 1753 696888 FAX: +44 1753 696339 DITAK 7 - ADJUSTABLE TIMEBASE 5-DIGIT RATE INDICATOR l LCD, POSITIVE REFLECTIVE OR NEGATIVE TRANSMISSIVE WITH YELLOW/GREEN OR RED BACKLIGHTING l 0.6 INCH (15.2mm) HIGH DIGITS l ADJUSTABLE TIMEBASE FROM 4 MSEC TO 32 SEC l SELECTABLE DECIMAL POINTS l REPLACEABLE LITHIUM BATTERY PROVIDES UP TO 5 YEARS OF CONTINUOUS OPERATION (Battery included) l NEMA 4X/IP65 SEALED FRONT PANEL BEZEL l ACCEPTS MAGNETIC OR LOGIC TYPE SIGNAL INPUTS l WIRE CONNECTIONS MADE VIA SCREW CLAMP TYPE TERMINALS DESCRIPTION SAFETY SUMMARY The Ditak 7 is a self-powered rate indicator which features selectable All safety related regulations, local codes and instructions that appear in the Timebase Increments by setting the appropriate DIP switches on the rear of the manual or on equipment must be observed to ensure personal safety and to unit. The internal plug-in 3.0 VDC lithium battery, requires NO soldering, prevent damage to either the instrument or equipment connected to it. If making it easily replaceable in the field. It has a 5-digit LCD display with 0.6 equipment is used in a manner not specified by the manufacturer, the protection inch (15.2 mm) high digits and a DIP switch selectable decimal point. The provided by the equipment may be impaired. displays are available in positive image reflective (black digits, reflective background) or negative image transmissive (illuminated digits, dark SPECIFICATIONS background) with red or yellow/green backlighting. Backlight version units 1. DISPLAY: 5-Digit LCD, 0.6” (15.2 mm) high digits. require power from an external 9 to 28 VDC supply. 2. POWER SOURCE: Internal 3.0 V lithium battery provides up to 5 years of Like other Micro-Line products, the Ditak 7 combines the use of a custom continuous service (battery life is dependent upon usage). For replacement CMOS LSI counter chip and custom timebase gate array. These chips are procedure, refer to battery installation figure. The Ditak 7 can also receive mounted on a gold-plated substrate and electrically connected by ultrasonic power at Terminal 3 (INP) from a logic or magnetic signal with a minimum wire-bonding. Internal electrical interface connections use elastomeric contacts peak voltage of 4.0 V, which will serve to extend the battery life. Must use to provide a gas-tight, corrosion resistant connection. Use of the latest in Micro- the MLPS or a Class 2 or SELV rated power supply. Electronic assembly and manufacturing techniques provides units with 3. BACKLIGHT POWER REQUIREMENTS: 9 to 28 VDC @ 35 mA. o reliability and dependability required for industrial applications. Above 26 VDC, derate operating temperature to 50 C. The unit is constructed of a lightweight, high impact plastic case with a clear 4. SIGNAL INPUT: 0 to 10 KHz from a magnetic or bi-polar output (with a viewing window. The sealed front panel meets NEMA 4X/IP65 specifications 50% duty cycle). Min. input sensitivity is 0.9 V. Max. input = 28 VDC. for wash-down and/or dusty environments, when properly installed. A Ditak 7 5. TIMEBASE: Adjustable in 1/256 sec (3.906 msec) increments via DIP unit can be mounted in the same panel cut-out as the earlier Ditak 5 & 6 series switches located at the rear of the unit. Timebase ranges from 3.906 msec to units. 31.996 sec; 0.05% accuracy. The optional Micro Line/Sensor Power Supply (MLPS0000) is designed to 6. ENVIRONMENTAL CONDITIONS: attach to the rear of an installed Ditak 7. The optional supply can be powered Operating Temperature: 0 to 60°C (Above 50°C derate backlight operating from either a 115 or 230 VAC source, and can provide power for the voltage to 26 VDC max.) backlighting of a unit and a sensor. Storage Temperature: -40 to 80°C Operating and Storage Humidity: 85% max. (non-condensing) from 0°C to 60°C. Altitude: Up to 2000 meters CAUTION: 7. CONSTRUCTION: High impact plastic case with clear viewing window Read complete instructions prior to installation and operation of the unit. (Panel gasket and mounting clip included). Installation Category I, Pollution Degree 2. Note: Recommended minimum clearance (behind the panel) for DIMENSIONS “In inches (mm)” mounting clip installation is 2.15” (54.6) H x 3.00” (76.2) W. 1 SPECIFICATIONS (Cont’d) BLOCK DIAGRAM 8. CERTIFICATIONS AND COMPLIANCES: EMC EMISSIONS: Meets EN 50081-1: Residential, Commercial, and Light Industry CISPR 11 Radiated and conducted emissions EMC IMMUNITY: Meets EN 50082-2: Industrial Environment. ENV 50140 - Radio-frequency radiated electromagnetic field 1 & 2 ENV 50141 - Radio-frequency conducted electromagnetic field EN 61000-4-2 - Electrostatic discharge (ESD) EN 61000-4-4 - Electrical fast transient/burst (EFT) EN 61000-4-8 - Power frequency magnetic field Notes: 1. RF Conducted Immunity I/O lines Cable shield connected to earth ground at both ends. 2. RF Conducted Power lines At 10 V rms, from 24 to 65 MHz, rate display value varies. WIRING CONNECTIONS a. At 8 V rms unit operates normally. The electrical connections are made via rear screw-clamp terminals located b. At 10 V rms, use of a line filter (LFIL0000) or one ferrite suppression on the back of the unit. All conductors should meet voltage and current ratings core on power lines enables normal unit operation. for each terminal. Also cabling should conform to appropriate standards of Refer to the EMC Installation Guidelines section of this bulletin for good installation, local codes and regulations. It is recommended that power additional information. supplied to the unit (AC or DC) be protected by a fuse or circuit breaker. When 9. WEIGHT: 3.3 oz (93.5 g) wiring the unit, use the label to identify the wire position with the proper function. Strip the wire, leaving approximately 1/4” bare wire exposed (stranded wires should be tinned with solder). Insert the wire into the screw- EMC INSTALLATION GUIDELINES clamp terminal and tighten the screw until the wire is clamped tightly. Each Although this unit is designed with a high degree of immunity to terminal can accept up to two #14 AWG wires. ElectroMagnetic Interference (EMI), proper installation and wiring methods The backlighting for a backlight version unit is powered between Terminal 2 must be followed to ensure compatibility in each application. The type of the (V+) and Terminal 1 (GND). electrical noise, source or coupling method into the unit may be different for various installations. In extremely high EMI environments, additional measures may be needed. Cable length, routing and shield termination are very important REAR PANEL DIP SWITCHES and can mean the difference between a successful or a troublesome installation. When viewing the Ditak 7 from the rear, there are two banks of DIP Listed below are some EMC guidelines for successful installation in an switches, with eight switches per bank, located along the top edge of the PC industrial environment. board. The bank to the left is labeled SWA and the bank to the right is labeled 1. Use shielded (screened) cables for all Signal and Control inputs. The shield SWB. All of the SWA switches and five of the SWB switches are used to select (screen) pigtail connection should be made as short as possible. The the desired Timebase. The remaining switches of SWB are used to select connection point for the shield depends somewhat upon the application. Frequency Doubling and the Decimal Point position. Listed below are the recommended methods of connecting the shield, in order of their effectiveness. a. Connect the shield only at the panel where the unit is mounted to earth ground (protective earth). b. Connect the shield to earth ground at both ends of the cable, usually when the noise source frequency is above 1 MHz. c. Connect the shield to common of the unit and leave the other end of the shield unconnected and insulated from earth ground. 2. Never run Signal or Control cables in the same conduit or raceway with AC power lines, conductors feeding motors, solenoids, SCR controls, and heaters, etc. The cables should be run in metal conduit that is properly grounded. This is especially useful in applications where cable runs are long and portable two-way radios are used in close proximity or if the installation is near a commercial radio transmitter. 3. Signal or Control cables within an enclosure should be routed as far away as possible from contactors, control relays, transformers, and other noisy components. Note: The model DT700000 will NOT have a screw terminal installed at Terminal 4. In extremely high EMI environments, the use of external EMI suppression 2 (V+), since it is NOT required for operation, and is not internally connected. The DT700M00 uses the V+ screw terminal to mount the MLPS power supply. devices, such as ferrite suppression cores, is effective. Install them on Signal It is not internally connected to the unit. and Control cables as close to the unit as possible. Loop the cable through the core several times or use multiple cores on each cable for additional WARNING: Lithium battery may explode if incinerated. protection. Install line filters on the power input cable to the unit to suppress power line interference. Install them near the power entry point of the enclosure. The following EMI suppression devices (or equivalent) are recommended: Ferrite Suppression Cores for signal and control cables: Fair-Rite # 0443167251 (RLC #FCOR0000) TDK # ZCAT3035-1330A Steward #28B2029-0A0 Line Filters for input power cables: Schaffner # FN610-1/07 (RLC #LFIL0000) Schaffner # FN670-1.8/07 Corcom #1VR3 Note: Reference manufacturer’s instructions when installing a line filter. 5. Long cable runs are more susceptible to EMI pickup than short cable runs. Therefore, keep cable runs as short as possible. 2 TIMEBASE SELECTION FREQUENCY DOUBLING The Ditak 7 has a Timebase selection range from 4 msec to 32 sec. SWA 1 DIP switch SWB 6 is the “Frequency Doubling” switch. When it is in the is set to the “ON” position for the minimum Timebase setting. SWA 1 through “ON” position, frequency doubling is disabled. When set to the “OFF” position, SWB 5 are set to the “ON” position for the maximum Timebase setting. A it is enabled and twice the number of input pulses are registered in the unit. This specific Timebase setting is achieved by adding the appropriate individual doubling of the input rate allows the Timebase Increment Total to be halved, Timebase increments. The Timebase increment total is computed according to thus allowing a faster update time for a given display value. the following formula: SWB 6 ON SWB 6 OFF �� �� DR x DDP x 15,360 FRQ. DBL. DIS. (X1) FRQ. DBL. (X2) ��� TIMEBASE INCREMENT TOTAL (TBIT) = RPM x PPR WHERE: DR = Desired Reading DDP = Display Decimal Point BATTERY INSTALLATION RPM = Revolutions Per Minute 1. To remove battery cover, unsnap at either of the lower rear corners and PPR = Pulses Per Revolution pull cover straight out (refer to drawing below). 2. Remove the plug-in battery and replace with an RLC battery DDP: Use one of the following numbers in the above formula for the display (BNL00000). Observe proper polarity when replacing battery as shown decimal point (DDP) position. in the drawing. 0 = 1 3. Allow 32 seconds for the first update to occur after battery is replaced. 0.0 = 10 0.00 = 100 TIMEBASE TIMEBASE SWITCH INCREMENTS SWITCH INCREMENTS SWA 1 1 SWB 1 256 SWA 2 2 SWB 2 512 SWA 3 4 SWB 3 1024 SWA 4 8 SWB 4 2048 SWA 5 16 SWB 5 4096 SWA 6 32 SWA 7 64 SWA 8 128 Example: Find the appropriate Timebase DIP switch setting for a desired display decimal point position of 0.0 reading with a fixed shaft speed. DR x DDP x 15,360 ��� TIMEBASE INCREMENT TOTAL (TBIT) = RPM x PPR Desired Readout (DR) = 250.0 Revolutions Per Minute (RPM) = 1250 Pulses Per Revolution (PPR) = 50 250.0 x 10 x 15,360 38,400,000 �� �� TBIT = = = 614.4 1250 x 50 62,500 TBIT = 614 {round to the nearest whole number} TBIT = 614 DIP SWB 2 - 512 102 - Needed DIP SWA 7 - 64 38 - Needed DECIMAL POINT SELECTION DIP SWA 6 - 32 The selection of Decimal Point is accomplished by DIP switches SWB 7 and 6 - Needed SWB 8. The table shows what combinations of switches are needed to obtain DIP SWA 3 - 4 2 - Needed the desired decimal point location. The Ditak 7 always has leading zero DIP SWA 2 - 2 blanking. 0 - Needed SWB 7 SWB 8 D.P. LOCATION ON ON Factory test mode ON OFF 0 DIP switches SWA 2, 3, 6, 7, and SWB 2 are all set to the “ON” position for OFF ON 0.0 a Timebase Increment Total of 614. If it is desired to know what the OFF OFF 0.00 approximate Timebase is in seconds, use the following formula: Note: The Decimal Point position will take effect when the display updates. TBIT x 0.004 = Time in seconds 614 x 0.004 = 2.456 sec. TROUBLESHOOTING For further technical assistance, contact technical support at the appropriate company numbers listed. 3 INSTALLATION ENVIRONMENT The unit should be installed in a location that does not exceed the maximum operating temperature and provides good air circulation. Placing the unit near devices that generate excessive heat should be avoided. The bezel should be cleaned only with a soft cloth and neutral soap product. Do NOT use solvents. Continuous exposure to direct sunlight may accelerate the aging process of the bezel. INSTALLATION The Ditak 7 meets NEMA 4X/IP65 requirements for indoor use, when properly installed. The units are intended to be mounted into an enclosed panel. A sponge rubber gasket, mounting clip, two screws, and nut fasteners are provided to install and seal the unit in the panel cut-out. The following procedure assures proper installation: 1. Cut panel opening to specified dimensions. Remove burrs and clean panel opening. 2. Slide the panel gasket over the rear of the unit to the back of the bezel. 3. Slide nut fastener into slot on mounting clip and then insert mounting screw through nut on both sides of mounting clip. Tip of mounting screw should NOT 6. Alternately tighten each mounting screw to ensure project through hole on clip. uniform gasket pressure. Visually inspect the gasket 4. Install Ditak unit through panel cut-out. for proper seal. The gasket should be compressed 5. Slide mounting clip over rear of unit until clip is approximately 75 to 80% of its original thickness. against back of panel. The mounting clip and Ditak 7. If the gasket is not adequately compressed and the housing have a latching feature to hold the unit in mounting screws cannot be tightened any further, place until tightened. loosen mounting screws and insure that the clip is Note: Hold the Ditak front bezel in place when latched as close as possible to the panel. sliding the mounting clip into position. 8. Repeat step #6 for tightening the mounting screws. TYPICAL APPLICATION With these DIP switch settings, the Timebase would be approximately 1.3 CONVEYOR BELT SPEED INDICATOR sec (328 x 0.004 = 1.312). To reduce the display update time, the “Frequency It is desired to display the rate of a conveyor belt used to carry PC Boards Doubling” switch can be enabled (set to the “OFF” position). Therefore, only through an Infared soldering chamber that is variable from 0 to 10 feet per half the Timebase will be necessary (164 x 0.004 = 0.656 sec.). minute. The rate must be adjusted depending on the size of the boards being soldered. The display of the rate indicator must read in hundredths of a foot per 328 �� TBIT = = 164 minute. The belt is driven by a chain and sprocket. A 26-tooth sprocket is 2 mounted onto the shaft of a variable speed motor. A speed of 1800 RPM will TBIT = 164 produce a belt speed of 10 ft/min. A magnetic sensor is used to monitor the DIP SWA 8 - 128 speed of this sprocket. The Ditak 7 can be used to display the belt speed in this 36 - Needed application. The signal input of the sensor is connected to the Ditak 7 Terminal DIP SWA 6 - 32 3 (INP). The sensor common and shield are connected to the Ditak 7 Terminal 4 - Needed 1 (GND). The Timebase setting is to be determined by using the formula. DIP SWA 3 - 4 0 - Needed DR x DDP x 15,360 ��� TIMEBASE INCREMENT TOTAL (TBIT) = DIP SWB 6 - OFF - Frequency Doubling Enabled RPM x PPR DIP SWB 7,8 - OFF - 0.00 Decimal Point Position Desired Reading = 10.00 MAX RPM Of Shaft = 1800 Pulses Per Revolution = 26 Display Decimal Point = 100 ORDERING INFORMATION Note: Unit shipped with battery installed. 15,360,000 10.00 x 100 x 15,360 MODEL NO. DESCRIPTION PART NUMBER ��� �� TBIT = = = 328.2 1800 x 26 46,800 Adjustable Timebase Tachometer DT700000 Adjustable Timebase Tachometer with Yellow/Green DT700010 TBIT = 328 {round to the nearest whole number} Backlighting DT7 Adjustable Timebase Tachometer with Red TBIT = 328 DT700020 Backlighting DIP SWB 1 - 256 Adjustable Timebase Tachometer with V+ Terminal DT700M00 72 - Needed BNL 3V Lithium Battery BNL00000 DIP SWA 7 - 64 MLPS Micro Line Sensor/Power Supply MLPS0000 8 - Needed For more information on Pricing, Enclosures & Panel Mount Kits refer to the DIP SWA 4 - 8 RLC Catalog or contact your local RLC distributor. 0 - Needed 4