Gefran 650 Controller – Programmer
The Gefran 650 is a 48×48 mm (1/16 DIN) PID temperature controller with 80 mm depth and a removable front panel for replacement from the front of the control cabinet. It is used in local thermal process loops requiring PID, on/off, ramp/hold profiles, or open/close motorized valve control. The device is suitable for industrial environments where precise temperature regulation and process sequencing are required.
Inputs and Measurement
Primary input supports thermocouples J, K, R, S, T, C, D, RTD Pt100/JPt100, and linear signals 0–60 mV, 0–1 V, 0–5 V, 0–10 V, 0/4–20 mA. Scaling is configurable from -1999 to 9999, with sampling intervals of 60 or 120 ms. Additional inputs include remote setpoint and up to two CT 50 mAac inputs for load monitoring, supporting process diagnostics and heater integrity checks.
Outputs and Control Functions
Output options: relay 5 A / 250 Vac, logic 24 Vdc for SSR, triac 75–264 Vac / 1 A, continuous 4–20 mA, and analog retransmission 0–10 V or 0/4–20 mA (variant dependent). Supports single-loop PID, heat/cool, on/off, continuous or time-proportional output, 4 alarms, LBA, HB, and SSR alarm. Suitable for direct control of contactors, SSRs, or analog actuators in process applications.
Process Programming
Setpoint programmer allows up to 4 programs with 12 steps each, including ramp time, hold time, consents, and event outputs. Sixteen function blocks (AND/OR/timer) enable basic machine logic without additional relays or small PLCs. Communication via isolated RS485 Modbus RTU for integration with SCADA or PLC systems.
Typical Applications
- Ovens, dryers, and thermal zones
- Extruders, injection moulding, heated moulds
- Packaging machines with SSR or contactor
- Heating/cooling loops with remote setpoint
- Motorized valves without position feedback
Installation Conditions and Standards
Power supply: 100–240 Vac/Vdc or 20–27 Vac/Vdc (selectable), max consumption 5 W. Operating temperature: -10…+55 °C. Front panel rated IP65. Compliance: EMC 2014/30/EU, LVD 2014/35/EU, EN 61326-1, EN 61010-1, UL 61010-1 for process control equipment. Suitable for industrial process control panels requiring robust temperature regulation and process sequencing.