Controller & Programmer - Type 600 OF | Gefran | Philippopoulos s.a.
Controller & Programmer - Type 600 OF | Gefran | Philippopoulos s.a.

Controller & Programmer - Type 600 OF | Gefran

Gefran 600 OF Controller – Programmer

The Gefran 600 OF is a microprocessor-based open-frame process controller, 44×91 mm (1/16 DIN), designed for integration into compact panels, membrane keypads, and machine-specific operator interfaces. It features dual 4-digit green displays for PV/SV, four keys, output status LEDs, and supports external keypad connection.

Process Inputs

The primary input is universal and selectable from the front panel, with no external shunts required. Supported input types include thermocouples J, K, R, S, T, and custom ranges, RTD Pt100/JPt100, PTC, NTC, and linear signals (0/4–20 mA, mV, V), with a range of -1999 to 9999 and 32-segment custom linearization. Accuracy is 0.2% f.s. ±1 digit, with a 120 ms sampling time.

Control and Outputs

The 600 OF supports On/Off, P, PD, and PID control for heating or cooling, with self-tuning, auto-tuning, soft-start, bumpless Man/Auto transfer, setpoint ramp, and a 3-step setpoint programmer. Outputs are configurable as relay (5 A / 250 Vac / 30 Vdc) or logic (15 Vdc for SSR). Up to 5 outputs are available, depending on model.

Alarms and Communication

Three alarms can be set as absolute, deviation, or symmetrical deviation, with direct/reverse logic, hysteresis, memory, delay, and startup lockout. LBA (Load Break Alarm) is included for load interruption or loop failure detection. Optional isolated RS485 serial communication with Modbus RTU is available.

Model Variants

  • Model A/G: Main relay output for contactor applications.
  • Model B/C/E/F/H: Main logic output for SSR control.
  • Model C/F: RS485 interface for PLC or SCADA integration.
  • Model D: Basic version with logic OUT1 and internal keypad.

Typical Applications

Used in small industrial ovens, pipe welders, dryers, temperature control units, climatic chambers, test benches, and machines with membrane-type operator panels.

Operating Conditions and Compliance

Operating range: 0–50 °C; storage: -20–70 °C; humidity: 20–85% RH non-condensing. The 600 OF series is CE compliant for RoHS, EMC 2014/30/EU, and LVD 2014/35/EU, meeting EN 50581, EN 61326-1, and EN 61010-1 standards.

Description

Technical specifications

Overview

Microprocessor controller, format 44×91 (1/16 DIN) manufactured using SMT.

Provides a complete operator interface. It has 4 keys, two green LED displays, each with 4 digits, 4 red signal LED's for the 4 logic or relay outputs, and 3 other programmable LED's to signal the various operational states of the instrument.

Can be connected to an external keyboard for custom solutions.

The main input for process variable is universal, and many types of signals can be connected: thermocouples, resistance thermometers, thermistors, normalized linear inputs, all with possibility of custom linearization using the faceplate keys. The type of input is selected from the faceplate keys; no external shunts are required.

Control functions are selectable from classic mode or from setpoint programmer mode with 3 settable steps.

With the isolated digital input you can select: one of the two presettable setpoints, select Manual-Automatic mode, reset the alarms memory, or enable the hold function.

The instrument can have up to 5 outputs: relay (5A at 250Vac/30Vdc cos_= 1) or logic 15V ±10% (12V min at 30mA).

The function of each output is freely configurable from the faceplate keys.

In addition to control and alarm outputs, you can have outputs that repeat the state of the digital input and values alarm limits acquired from serial line.

Another output (±15Vdc 20mA max.) is available to power external transmitters.

The serial communication option (available in RS485 standard) allows connection to supervision systems and PLCs with the MODBUS RTU protocol.

Instrument programming is facilitated by grouping parameters in functional blocks (CFG for control parameters, Inp for inputs, Out for outputs, etc.).

The instrument can also select display parameters based on hardware configuration, automatically masking irrelevant parameters.

The instrument is supplied with an "EASY" configuration with just a few parameters (only those for the model ordered and essential for controller operation). In this way, you just have to set the setpoint and alarm, and launch selftuning from the button. The 600OF does all the rest.

A PC programming kit is available for even simpler configuration, composed of a cable and a guided program for Windows environment (see data sheet code Winstrum).

Compact “Open Frame” mechanical structure makes the 600 OF easy to use even on small panels and housings.

Description

  • Universal input configurable from faceplate
  • Accuracy better than 0.2% f.s. under nominal conditions
  • Up to 5 outputs, relay, logic, for control,alarms
  • Hot/cold function with selection of cooling liquid
  • 3 alarms with completely configurable function
  • Software alarm for load interrupt or probe in short circuit (LBA)
  • Self-tuning, Auto-tuning, Soft-start, bumpless Man/Auto function
  • Double set, set ramp, timed output function
  • Setpoint programmer functions with 3 configurable steps
  • Configurable internal buzzer
  • Optically isolated RS485 serial communication, protocol: MODBUS RTU
  • Self-diagnosis
  • Panel mounting
  • Screw connections with removable terminals

Certifications