RADONIXTECHNICAL USER MANUAL
Controller Wiring & Safety Manual
A structured field reference for electrical-panel placement, power, communication, digital and analog I/O, axis connections, handwheel and RS485 wiring across Radonix PC-Pro and PC-Smart controllers.
Panel Placement & Noise Control
Install the controller on the electrical-panel rail with its protective cover and base. Maintain at least 5 cm clearance from nearby ducts, cables and components on every side.
- Reserve a separate low-voltage area for the controller.
- Keep inverters, drives and high-voltage cables away from the controller and communication path.
- Use the shortest practical route for high-voltage wiring.
- Do not route Ethernet or analog cables beside noisy power wiring.
Communication & Power
LAN communication
PC-Pro LAN and PC-Smart controllers use standard TCP/IP Ethernet. Use CAT5 or CAT6 cable up to 30 m and protect the route from high-voltage cables, impact and pressure.
Calculate the current of the controller and every relay, valve, brake and other 24 V load, then add a suitable reliability margin.
Digital Inputs
Digital inputs are identified as I.[n] and are optically isolated. Set the controller input-mode switch to match the connected sensor or device.
Confirm the PC-Pro or PC-Smart connection diagram before energizing because common-terminal wiring differs by mode.
Digital Outputs
Outputs are identified as O.[n]. PC-Pro outputs are NPN low-active/open-collector outputs with short-circuit and thermal protection; PC-Smart outputs are relay outputs.
Never parallel PC-Pro outputs to obtain more current. Connect PLCs, inverters and peripheral equipment to a common or mutually bonded ground as specified in the source diagrams.
Analog, PWM & Analog Inputs
PC-Pro controllers expose AO.[n] and PWM.[n]; PC-Smart models provide 0-10 V analog channels. Analog connections are high impedance and noise-sensitive.
- Keep analog cables away from strong-voltage and noisy components.
- Use twisted-pair or multi-core cable, not single loose conductors.
- Do not apply more than 10 V to an analog output.
- Analog inputs are available only on applicable PC-Smart controllers.
Axis DB15 Connection
Active axes connect to servo or stepper drives through the 15-pin axis connector.
| Pins | Signal | Purpose |
|---|---|---|
| 1 | +VCC | Controller source voltage, maximum 100 mA |
| 2-3 | Direction – / + | Differential direction output |
| 4-5 | Pulse – / + | Differential pulse output |
| 6 | Servo On | NPN output; not used for stepper systems |
| 7 | Servo Ready | NPN optically isolated readiness input |
| 8 | Encoder Zero | Encoder reference input on applicable PC-Smart models |
| 9 | Alarm Reset | NPN output for clearing a resolved drive alarm |
| 10-15 | GND | Signal ground connections |
Handwheel & RS485
PC-Pro controllers, except the Pro LAN 3AS model, use a 9-pin connector for handwheel and RS485 communication. PC-Smart models use separate handwheel and RS485 connectors. A compatible handwheel uses a 5 V encoder with differential outputs; RS485 communication uses the A.485 and B.485 lines.
When an open-collector handwheel encoder is used on applicable PC-Pro models, follow the source manual’s HW.A+, HW.B+ and +5 V wiring. Connect remaining handwheel selector switches through suitable digital inputs.
Installation, Wiring & Circuit Diagrams