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General features
Microprocessor controllers, 48x96 (1 / 8DIN) format for 1200 and 96x96 (1 / 4DIN) format for 1300, built with SMT technology.
Complete operator interface protected by Lexan membrane to guarantee IP65 front panel protection level.
It consists of 4 keys, double 4-digit green LED display, 4 red signal LEDs for 4 relay / logic outputs and 3 additional LEDs with programmable function to inform various functional states of the device.
The main input of the variable to be controlled is universal and allows the connection of a wide variety of signals: thermocouples, resistance thermometers, thermistors, normalized linear inputs, all with the possibility of custom linearization set from the faceplate. The input type is selected entirely from the front panel and does not require external adapter shunts / dividers.
There is a second auxiliary analog input from the current transformer. You can choose one of two preset set points, choose Manual-Auto mode, reset the alarm memory, or activate the hold function via the digital input.
The device provides up to 4 outputs: relay (5A, 250VAC / 30VDC cosφ = 1) or logic (24V ± 10% (10Vmin a 20mA)).
An analog output is also available in voltage or current. The functions of each output can be freely configured from the front panel. In addition to the control and alarm outputs, you can also have outputs that repeat the status of the digital or retransmission input with process variable, setpoint, deviation, alarm trip points and values received over the serial line.
An additional output (24VDC, 30mA max) is available to power external transmitters.
Explanation
- Configurable universal input from the front panel
- Accuracy better than 0.2% fs under nominal conditions
- Control output: relay, logic, Triac or continuous
- Hot / cold function with coolant selection
- 3 alarms with fully configurable functionality
- Analogue retransmission output
- Up to 2 isolated digital inputs with configurable function
- Isolated digital input with configurable function
- Auxiliary input (TA) for CT (50mAac)
- Heater failure or probe short circuit alarm
- Auto adjustment, Auto adjust, Soft start, Non-impact Man / Auto function
- Double set, set ramp, time adjusted output function
- Optically isolated RS485 serial line. Protocol: GEFRAN MODBUS RTU
- Self diagnosis
- Quick configuration from a PC with GF eXpress software
Serial communication option can be in Current Loop or RS485 with MODBUS RTU protocol and maximum speed of 19200 baud (485). The entire programming procedure of the instrument is simplified by grouping parameters into function blocks (CFG for control parameters, Inp for inputs, Output for outputs, etc.).
The instrument can also select parameters to be displayed according to the hardware configuration, which automatically hides unrelated parameters.
The instrument is provided in an "EASY" configuration that requires only a few parameters (only those related to the ordered model and those required for controller operation). That way, you just need to set the setpoint and alarm, and then start auto tuning with a specific button.
For an even simpler configuration, you can use a PC programming kit for the Windows environment, which consists of a cable and a guided program (see Technical Data code GF_eXpress).
