RKC
REX-C900
REX-C Series • Industrial Controller
Quick Info
Type
Industrial
Application
Precision Control
Probe Inputs
2
Relay Outputs
2
Communication
RS-485 Modbus RTU
Panel Size
96x96 mm
Output Functions
R1
Control
R2
Alarm
96x96 high performance PID controller
Technical Specifications
Display & Interface
| Display Type | LED |
| Display Digits | 5+5 |
| Buttons | 8 |
| LED Indicators | OUT1, OUT2, AT, ALM1, ALM2, RUN |
Power Supply
| Voltage | 100-240V AC |
| Voltage Range | 85-264V AC |
| Frequency | 50/60Hz |
| Power Consumption | 18VA |
Sensor Inputs
| Probe Inputs | 2 |
| Probe Type | TC/RTD/mA/mV/V universal |
| Temp Range | -200 to 2000°C |
| Accuracy | ±±0.1% FS |
Relay Outputs
| Relay Outputs | 2 |
| Relay Rating | 250VAC 3A |
Physical
| Panel Size | 96x96 mm |
| Depth | 115 mm |
| IP Rating | IP66 (front) |
| Weight | 380 g |
Operating Conditions
| Operating Temp | -10 to 50°C |
| Storage Temp | -20 to 60°C |
Wiring Terminals
| Terminal | Function | Type | Wire Color |
|---|---|---|---|
| 1-2 | Power L/N | Input |
brown/blue
|
| 3-5 | Input 1 | Input |
various
|
| 6-8 | Input 2 | Input |
various
|
| 9-10 | Analog Output | Output |
blue/black
|
| 11-12 | Control Relay | Output |
black
|
| 13-14 | Alarm Relay | Output |
red
|
| 15-16 | RS-485 | Comm |
orange/yellow
|
Important: Always disconnect power before wiring. Verify terminal numbers with the actual controller label before connecting.
Parameter Settings
| Code | Parameter | Range | Default | Description |
|---|---|---|---|---|
| SV | Setpoint | Input range | 100 °C | Target setpoint |
| P | P Band | 0.0 to 999.9 | 3.0 % | Proportional band |
| I | I Time | 0 to 3600 | 90 sec | Integral time |
| D | D Time | 0 to 3600 | 23 sec | Derivative time |
| PTN | Pattern No. | 0 to 15 | 0 | Program pattern |
Error Codes
HHHH
Over range
Solution: Check input
LLLL
Under range
Solution: Check input
End
Program complete
Solution: Normal
Frequently Asked Questions
Yes, with 2 inputs supports cascade PID
High-speed processes with rapid changes
Alternative Models (Cross Reference)
Omron E5AC
Autonics TK4H
Fuji PXR9
Manufacturer Information
Brand: RKC
Country: Japan