MICRO-EH RTD Expansion Unit Instruction Manual
Contents
1. Mode 4000 Mode 4096 lt 10 OFAOH 4000 OFFFH 4095 Fj 5 07DOH 2000 07FFH 2047 0 0 0000H 0 0000H 0 Resolution 0 0025 approx 0 00244 Mode 4000 Mode 4096 oO 20mA OFAOH 4000 OFFFH 4095 Cc g 10mA 07DOH 2000 07FFH 2047 7 OmA 0000H 0 0000H 0 approx Resolution 0 005mA ig 0 00488mA 6 NJI 453 X 4to 20 mA Mode 4000 Mode 4000 Mode 4096 o 20mA OFAOH 4000 OFFFH 4095 z 12mA 07DOH 2000 07FFH 2047 a 4mA 0000H 0 0000H 0 Resolution 0 004mA approx 0 00391mA 07D0H 07FFH OFAOH OFFFH 2000 2047 4000 4095 E Range configuration RTD input Common for all channels C F switching Remarks C Celsius Factory default F Fahrenheit Response time Remarks 563 ms Factory default 141 ms Analog output Common for all channels Remarks Factory default Conversion mode 4 096 HOFFF 4 000 HOFAO Factory default Sws3 Be sure to set on Sw7 Be sure to set off Sw8 Be sure to set off E I O assignment Data allocation I O assignment FUNO WxXu00 System area Dip switch Factory default Mode Remarks Note Power up again after adjusting WxXu01 RTD input data Ch 1 Signed 16 bits data WxXu02 RTD input data Ch 2 WXu03 RTD input data Ch 3 WxXu04 RTD input data Ch 4 WyYu05 System2. 12 Bits 1 of full scale over temp range 8 8 ms Current Outputs Max Voltage at 20 mA 10V User Load Range 10 to 500 Q Output Load Capacitance 2000 pF Max Output Load Inductance 1 Henry Max Voltage Outputs Output Loading 10 kQ Minimum at 10 V Output Load Inductance 1 micro F Max Value in brackets is in case of mode 4000 3 NJI 453 X E Terminal configuration EH A6ERTD AC power and Analog output type RTD input and Voltage output Input temperature 100 to 600 C Power supply 100 to 240VAC EH D6ERTD DC power and Analog output type RTD input and Current output Input temperature 100 to 600 C Power supply 24VDC Output current 0 to 20mA 4 to 20mA EH A4ERTD AC power no analog output version EH D4ERTD DC power no analog output version Input temperature 100 to 600 C Power supply 100 to 240VAC 4 NuJI 453 X E Wiring and circuit diagram RTD input signal Pt100 3 wire Pt100 Besuretouse fee 3 wire shielded cable IMA A Meg r samo IN b Signal lines should not be routed close to 5 oO 5 v Q Q 2 wire Pt100 Signal lines should not be routed close to 2 wire AC power lines ey INA 8 2k 2kQ i mO azn 3 3MQ IND e Short circuit between IN B and IN b in case of 2 wire system oar 3 wire system is recommended for this product Since cable resistance is not cancelled in
3. 2 wire system it is not suitable for high accuracy measurement especially for long cable used Analog output signal Voltage output Be sure to use shielded F twist pair cable e T 3 v g KD Guen output In some cases capacitor 2000pF or less is effective gt W In some cases capacitor 0 47uF or less is effective 5 NJI 453 X E Data conversion RTD input Data conversion Input data 610 C or more or wire breaking LED ch 1 4 H7FFF Blinking 600 C H1770 Off 0 C H0000 Off 100 C HFC18 Off 110 C or less or cable short circuit H7FFF Blinking 1130 F or more or wire breaking H7FFF Blinking 1112 F H2B70 Off 0 F H0000 Off 148 F HFA38 Off 166 F or less or cable short circuit H7FFF LED blinks depending on input value Please check wiring by the LED indication LED at open channel blinks as it is regarded as wire breaking This LED blinking can be avoided by short circuit between IN A and In b with 100 to 300 Q resistor Input data in this case will be undefined value Analog output 0 to 10V 0 to 20 mA Mode 4000 07D0H 07FFH OFAOH OFFFH 2000 2047 4000 4095 Mode 4000 07D0H 07FFH OFAOH OFFFH Mode 4096 Blinking
4. HITACHI MICRO EH RTD Expansion Unit Safety Precautions Thank you for purchasing a Hitachi Programmable Logic Coniroller To operate it safely please read these safety precautions and all the user manuals carefully Please be sure to use the latest versions of the user manuals and keep them at hand of end users for future reference 1 It is not allowed to reprint any part of this manual without permission 2 The content of this manual may be changed without notice 3 While efforts have been made on this manual to be accurate please contact us if any mistakes or unclear part is found m Warranty period and coverage The warranty period is either 18 months after manufacturing date MFG No or 12 months after installation Examination and repair within the warranty period is covered However within the warranty period the warranty will be void if the fault is due to 1 Incorrect use as directed in this manual and the application manual 2 Malfunction or failure of external other devices than this unit 3 Attempted repair by unauthorized personnel 4 Natural disasters The warranty is for the PLC only any damage caused to third party equipment by malfunction of the PLC is not covered by the warranty E Repair Any examination or repair after the warranty period is not covered And within the warranty period any repair and examination which results in information showing the fault was caused by any of the items mentio
5. N b can not be detected by the module LED indication is off in those cases UL requirements This PLC is certified UL508 CSA C22 2 No142 M1987 UL 1604 CSA C22 2 No 142 M1987 Hazardous locations is suitable for use in Class 1 Div 2 Groups A B C amp D Power down before installation exchanging unit and wiring NJI 453 X
6. area Do not write any value WYu06 Analog output data Ch 6 Be sure to write 12 bits data 0 to HFFF WYu07 Analog output data Ch 7 u Unit number 1 to 4 Example Unit 1 Ch 2 gt WX102 Unit 4 Ch 7 gt WY407 NJI 453 X E Caution Basic unit corresponding to an analog expansion unit Be sure to use with basic unit of software version 1 20 or newer Analog expansion unit is not supported by basic unit of software version 1 12 or older Software version of basic unit is given in WRF051 of special internal output area Data out of the range Value for data out of the range is H7FFF Signal level in case written output data is out of range If output data is over the range the signal stays at the Max value If under the range it stays at the minimum value Output value is signed 16 bits data 8000H to 7FFFH 32768 to 32767 Example Range 0 10V 2000H written gt 10V 10 24V output Example Range 4 20mA FFFFH written gt 4mA output O LED indication LED Lighting off Blinking POW Power supplied to exp unit No power supplied Power supplied to the next connected unit OK Unit OK No power supplied to basic Unit has fault Power up unit again or replace it Expansion cable disconnected ch 1 4 RTD connected properly Wire breaking or short circuit Data out of the range Since wire breaking only at IN B or short circuit only between IN B and I
7. eparated as much as possible Do not route both cables in a same duct Route the I O lines and data lines as close as possible to the grounded surfaces such as cabinet elements metal bars and cabinets panels E Other cautions Keep PLC modules in their boxes during storage and transport Check carefully your PLC program before using Environmental Conditions Avoid the following locations to install the PLC Excessive dust salty air or conductive materials iron powder etc Direct sunlight Temperature less than 0 C or more than 55 C Humidity less than 5 or more than 95 Dew condensation Direct vibration or impact to the unit Corrosive explosive or combustible gases Water chemicals or oil splashing on the PLC Close to noise emission devices E Reference Manual Read the following application manual carefully to use the PLC safely and properly Be sure to keep the latest version Manual Nb MICRO EH APPLICATION MANUAL NuJI 350 X The postfix of the publication number is subject to change for revision Manual nane NJI 453 X Specifications General Specifications Allowable momentary power 85 to 100V 10ms 10ms failure 100 to 264V 20ms Operating ambient temperature 0 to 55 C Storage ambient temperature 10 to 75 C Operating ambient humidity 5 to 95 RH no condensation Storage ambient humidity 5 to 95 RH no condensation Vibration resista
8. n the system unexpected breaking of wire or malsignal caused from instantaneous power failure Applied voltage must be in the range specified in the manual Otherwise there is a danger of breakdown and or injury and or fire Install an external earth leakage breakers to avoid short circuit accident In case of the followings turn off power Otherwise there is a danger of breakdown and or injury and or fire e Mounting or dismounting CPU or I O modules e Assembling cabinet or machine including PLC e Wiring Install net filter specified in table 1 The input and output cable of the net filter should be separated as much as possible Be sure to ground the net filter Ashielded and insulated transformer is recommended The basic and expansion unit should be wired to a common power source and powered up together as shown in fig 1 Table1 Net filter Item Spec Rated voltage 250 V Rated current 5A Withstand voltage V between Terminal and case 1500 V Insulation resistance MOQ min 500VDC 1 min between terminal and case 100 MQ Attenuation frequency Differential mode 40dB 0 5 to 30 range MHz Common mode 40dB 0 15 to 30 Reference EMC filter ZAC2205 00U TDK E I O Wiring Procedures Be sure that the input output voltage matches the specified voltage Otherwise there is a danger of breakdown and or fire Route the AC power line and I O lines should be s
9. nce Complies with JIS C 0911 Noise resistance Noise voltage 1500 Vp p Noise pulse width 100 ns 1 micro sec Noise created by the noise simulator is applied across the power supply module s input terminals This is determined by this company s measuring methods Based on NEMA ICS 3 304 with the exception of input module Static noise 3000 V at metal exposed area Insulation resistance 20 MQ or more between the AC terminal and case ground PE terminal based on 500 V DC mega Dielectric withstand voltage 1500V AC 500V DC Grounding Class D 100Q independent grounding Usage environment No corrosive gases no excessive dirt Structure Attaches to an open wall Op Protection against electrical Class 1 equipment shook hazard I O assignment FUNO X5W Y3W RTD input Specifications No of input channel RTD type supported Input resolution Input Ranges 100 0 C to 600 0 C 148 0 F to 1112 0 F Accuracy 0 5 of full scale over temp range Response time 141 563 ms Error detection Data H7FFF and LED blinking at below 110 C 166 F or beyond 610 C 1130 F including wire breaking or cable disconnection Cable length shielded 100 D Max Note The max cable length is 100m however it depends on noise environment or other conditions Cooling Natural air cooling Analog output Specifications No of analog output Output Ranges 0 10 V 10 23 V Max 0 20 mA 20 48 mA Max 4 20 mA 20 38 mA Max
10. ned above the repair and examination cost are not covered If you have any questions regarding the warranty or repair cost please contact your supplier or the local Hitachi Distributor Depending on failure part repair might be impossible General cautions E Definitions and Symbols D DANGER 9 Q Indicates a potentially hazardous situation which if not avoided can result in serious injury or death Indicates a potentially hazardous situation which if not avoided can result in minor to moderate injury or serious damage of product Indicates prohibition Indicates Compulsion Do not touch terminals during power ON There is a danger of electric shock and or injury Be sure to install external safety devices outside of the PLC like emergency stop circuit or interlock circuit A CAUTION Be sure that the rated voltage matches the power supply voltage of the unit Otherwise there is a danger of breakdown and or injury and or fire Only qualified personnel shall carry out wiring work Otherwise there is a danger of breakdown and or injury and or fire COMPULSION Be sure to ground the unit Otherwise there is a danger of electric shock and or malfunction PROHIBITION Do not modify or take apart the unit There is a danger of breakdown and or injury and or fire E Mounting This equipment must be placed within a suitable enclosure such a cabinet key or tool entry Mount
11. the PLC on a metal plate and install in a cabinet as follows Be sure to ground the cabinet and the metal plate otherwise there is a risk of malfunction Install the PLC as described in user manual Take appropriate measures when installing systems in locations e Subject to static electricity or other forms of noise e Subject to strong electromagnetic field e Close to power supplies Be sure to tighten mounting screws terminal screws and connector screws Check that devices with lock mechanism such as an expansion cable and terminal blocks are locked properly Grounding Net filter Recomme nded Power enclosure Grounding Insulation leakage breaker NuJl 453 X Figure 1 Power wiring example E General Wiring Procedures Use proper cable ferrules for terminals Using improper cable ferrules or connecting bare wires to terminals directly might result in fire Do not turn on power if the unit appears damaged Turn off power to the PLC before connecting field wiring Otherwise there is a risk of fire Do not attempt to disassemble repair or modify any part of the PLC Do not pull on cables or bend cables beyond their natural limit Otherwise there is a risk of breaking of wire m Power Wiring Procedures Appropriate emergency circuitry interlock circuitry and similar safety measures should be added to the system Appropriate safety measures should be included i
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