Field Selectable Input / Ouput Controller

• Standard universal inputs
• Field selectable outputs
• Easy set up and programming fuzzy logic on/off
• Heater break alarm for monitoring multiple parallel heaters
• Loop break alarm for heater breaks/shorted sensors or relays
• Alarm hold and alarm delay functions 2 alarms ield configurable
• Dual set point local or remote settable and ramp to setpoint

This controller features universal fleld selectable outputs for the main control ouput. The main control output can be selected from a relay contact, a voltage pulse, or a 4 to 20 mAmp output This controller also excepts 44 types of thermocouple, RTD, DC voltage and DC current. In addition these controllers can have 2 independent alarm contacts that are programmable to be deviation, process, or set value alarms. The Heater break alarms utilise an external current transformer that monitors the heater current and activates an alarm should the current fall below a threshold value that has been set by the operator. The loop break monitors and protects the entire temperature control system. The loop break alarm will detect Heater Breaks, Thermocouple or RTD failure, short circuits, or the failur of an operating device such as a mechanical relay, Mercury Relay or SSR.

Specifications

Input
Universal Field Selectable
Thermocouples. . . . . . (K,J,T,E,R,B,N,S,L,U)
RTD. . . . . . . . . . . PT100, JPT 100
Millivolts. . . . . . . .0-lOmV, 0-100mV, 0-1V, 0-5V,1-5V, 0-10V
Current. . . . . . . . . 4-20mA DC 0-20mA DC
Default setting. . . . . -300 to 1500F J
Control output
Universal Field Selectable
Relay output. . . . . . .(25OVAC, 3A resistive load)
Voltage pulse output. . .(0/l2VDC)
Current output. . . . . .(0-20mA DC, 4-20mA DC,max 600 ohms)
Continous voltageA. . . .(0-5V, 0-1 OV,1-5V, DC Load Res > 1 K )
ALARM
Maximum two alarms (independant setting)
Alarm type. . . . . . . .programmable (process or deviation)
Alarm output. . . . . . .relay output.
Control Method
P, PI,PD,PID with fuzzy, on/off
Error output 0:.........output off or 0% 1:.........output on or 100%
Output errors mean T/C, RTD input disconnection,A/D convertor error and setting data error.
Accuracy. . . . . . . . .+/-0.3%FS+1 digit
Sampling time. . . . . . 0.5 second(500ms)
External Dimensions
REX- D100. . . . . . . . 48 x 48 x 100mm
REX- D400. . . . . . . . 96 x 48 x 100mm
REX- D900. . . . . . . . 96 x 96 x 100mm
Power Supply. . . . . . .90 - 264 VAC - 50/60 Hz 6VA 100V, 9VA 200v
OPTIONS
Digital communication. . RS-485 (2 wire type) RS-422A (4 wire type)
Communication speed. . . 150,300,1200,2400,4800,9600 bps.
Address. . . . . . . . . 1 to 16
Parit. . . . . . . . . . with or without, even or odd in case of with
Stop bit. . . . . . . . .1 or 2
Data bit. . . . . . . . .7 or 8
External contact signal Off (SP1 ) On (SP2)
Retransmission output. . 4-20mA DC, 0-20mA DC,1-5VDC,O-1 OVDC,O-5VDC