GEFRAN 2500 HIGH PERFORMANCE CONTROLLER
Main characteristics
• Double configurable input for
strain gauge / potentiometer /
linear signal / TC / RTD
• Two auxiliary analog inputs
• Differential measurement
• High precision: 0.1 % f.s. ± 1 digit
• Automatic calibration for 6-wire
strain gauge
• Transmitter power supply and
strain gauge probe power supply
• PID controls with 8 sets of selectable
parameters
• 4 configurable alarms, failsafe function
• up to 3 isolated analog outputs for control
and retransmission
• 4 digital inputs
• 4 relay outputs with configurable function
• expansion with 4 configurable digital
inputs and/or outputs
• Serial communication interface:
- RS485/RS 232 MODBUS RTU protocol
(optional)
- Profibus DP Slave (optional)
• Front panel with three 5-digit displays and
two bar graphs
Main applications
• Pressure controls on extrusion
and injection press lines for
plastics
• Differential pressure control
• Strength control on textile,
paper, plastic film production
lines
• Tension control on winding
stations
• Control process
Order-no.: F28.679
Manufacturer: GEFRAN
SAGATRON-no.: F28.679
• Double configurable input for
strain gauge / potentiometer /
linear signal / TC / RTD
• Two auxiliary analog inputs
• Differential measurement
• High precision: 0.1 % f.s. ± 1 digit
• Automatic calibration for 6-wire
strain gauge
• Transmitter power supply and
strain gauge probe power supply
• PID controls with 8 sets of selectable
parameters
• 4 configurable alarms, failsafe function
• up to 3 isolated analog outputs for control
and retransmission
• 4 digital inputs
• 4 relay outputs with configurable function
• expansion with 4 configurable digital
inputs and/or outputs
• Serial communication interface:
- RS485/RS 232 MODBUS RTU protocol
(optional)
- Profibus DP Slave (optional)
• Front panel with three 5-digit displays and
two bar graphs
Main applications
• Pressure controls on extrusion
and injection press lines for
plastics
• Differential pressure control
• Strength control on textile,
paper, plastic film production
lines
• Tension control on winding
stations
• Control process
Order-no.: F28.679
Manufacturer: GEFRAN
SAGATRON-no.: F28.679
OPERATOR INTERFACE
Display: n. 3
Configurable from -19999 to 99999 with
settable decimal point
5 digits, 2 colors (R/G) 13mm
5 digits (G) 10mm
5 digits (G) 10mm
Bargraph: n. 2
with 10/20 red LEDs
Signal LEDs: n. 5 red
Keys: n. 6
ANALOG INPUTS
Accuracy:
0,1% f.s. ±1 digit (0,2% for TC)
Min. sampling time:
2 msec for main inputs
10msec for auxiliary inputs
Resolution:
• without filter: 100000 steps@2msec
• with digital filter (selectable):
100000 steps@20msec
100000 steps@100msec (50Hz)
Custom linearization:
• fixed intervals: 64 sections
• variable intervals: 32 section max.
• self-learning
INPUT 1, INPUT 2 main inputs
Strain-gauge: 350Ω
Sensitivity 1,5...4mV/V
Jumper power supply: 5/10Vdc 200mA
Potentiometer:
≥ 100Ω, Ri > 10MΩ @ 2,5Vdc
Linear DC:
±50mV...±10V, Ri > 1MΩ
0/4...20mA, Ri = 50Ω
TC - Thermocouple
J 0...1000°C / 32...1832°F
K 0...1300°C / 32...2372°F
R 0...1750°C / 32...3182°F
S 0...1750°C / 32...3182°F
T -200...400°C / -328...752°F
custom -1999...9999
RTD 2/3-wires
PT100 -200...850°C / -328...1562°F
int./ext. cold junction compensation
INPUT 3 (auxiliary)
Linear DC: 0...10V, 0/4...20mA, Ri = 50Ω
INPUT 4 (auxiliary)
Linear DC: 0...10V, 0/4...20mA, Ri = 50Ω
DIGITAL INPUTS
4 NPN/PNP inputs
Optically isolated 1500V
NPN (voltage-free contact)
PNP 24Vdc max 5mA
configurable type and function
DIGITAL EXPANSION I/O(OPT.)
4 PNP inputs and/or outputs
Isolated external power supply 24Vdc, ±25%
Input 24Vdc, 5mA
PNP output in external power supply
range, with short circuit protection via
PTC, max. 100mA.
ANALOG OUTPUTS
3 isolated outputs 1500V
0/4...20mA, max 500Ω or
±10V, min 500Ω
resolution higher than 0,03%
configurable type and function
Control OUT CO1
Control OUT CO2 (optional)
Retransmission OUT W (optional)
Not available with option of Profibus communication
RELAY OUTPUTS
4 relay outputs
NO/NC contact (internally selectable)
5A/250Vac cosϕ = 1
configurable function
OUT1, OU2 with terminal C in common
OUT3, OU4 with terminal C in common
COMMUNICATION (OPT.)
Serial interface:
RS485 2/4-wires / RS232 optically isolated
Protocol: MODBUS RTU
Profibus DP slave
Protocol: Profibus DP VO (slave)
CONFIGURATION VIA PC
Configuration software for Gefran products:
Instruments, Drives; Sensors, Automation.
Compatible with Windows 2000, XP, Vista.
CD-ROM with selectable Italian/English
language, with kit for PC-instrument serial
port connection.
CONNECTIONS
screws
POWER SUPPLY
100...240Vac/dc ±10%,
20...27Vac/dc ±10%,
50/60Hz; 20VA max
Protection via internal fuse, not replaceable
by operator.
PROBE POWER SUPPLY
5/10Vdc - 200mA, 2,5Vdc for potentiometers
TRANSMITTER POWER SUPPLY
24Vdc ±5% - 100mA
WEIGHT
700g
DIMENSIONS
96x96x167mm
ACCESSORIES
Front covers
standard Gefran (see catalog)
GF_eXpress Kit (GF_eXK-0-0-0)
Software on CD-ROM, complete with
RS232/TTL converter cables for PC and
Geflex connection.
Display: n. 3
Configurable from -19999 to 99999 with
settable decimal point
5 digits, 2 colors (R/G) 13mm
5 digits (G) 10mm
5 digits (G) 10mm
Bargraph: n. 2
with 10/20 red LEDs
Signal LEDs: n. 5 red
Keys: n. 6
ANALOG INPUTS
Accuracy:
0,1% f.s. ±1 digit (0,2% for TC)
Min. sampling time:
2 msec for main inputs
10msec for auxiliary inputs
Resolution:
• without filter: 100000 steps@2msec
• with digital filter (selectable):
100000 steps@20msec
100000 steps@100msec (50Hz)
Custom linearization:
• fixed intervals: 64 sections
• variable intervals: 32 section max.
• self-learning
INPUT 1, INPUT 2 main inputs
Strain-gauge: 350Ω
Sensitivity 1,5...4mV/V
Jumper power supply: 5/10Vdc 200mA
Potentiometer:
≥ 100Ω, Ri > 10MΩ @ 2,5Vdc
Linear DC:
±50mV...±10V, Ri > 1MΩ
0/4...20mA, Ri = 50Ω
TC - Thermocouple
J 0...1000°C / 32...1832°F
K 0...1300°C / 32...2372°F
R 0...1750°C / 32...3182°F
S 0...1750°C / 32...3182°F
T -200...400°C / -328...752°F
custom -1999...9999
RTD 2/3-wires
PT100 -200...850°C / -328...1562°F
int./ext. cold junction compensation
INPUT 3 (auxiliary)
Linear DC: 0...10V, 0/4...20mA, Ri = 50Ω
INPUT 4 (auxiliary)
Linear DC: 0...10V, 0/4...20mA, Ri = 50Ω
DIGITAL INPUTS
4 NPN/PNP inputs
Optically isolated 1500V
NPN (voltage-free contact)
PNP 24Vdc max 5mA
configurable type and function
DIGITAL EXPANSION I/O(OPT.)
4 PNP inputs and/or outputs
Isolated external power supply 24Vdc, ±25%
Input 24Vdc, 5mA
PNP output in external power supply
range, with short circuit protection via
PTC, max. 100mA.
ANALOG OUTPUTS
3 isolated outputs 1500V
0/4...20mA, max 500Ω or
±10V, min 500Ω
resolution higher than 0,03%
configurable type and function
Control OUT CO1
Control OUT CO2 (optional)
Retransmission OUT W (optional)
Not available with option of Profibus communication
RELAY OUTPUTS
4 relay outputs
NO/NC contact (internally selectable)
5A/250Vac cosϕ = 1
configurable function
OUT1, OU2 with terminal C in common
OUT3, OU4 with terminal C in common
COMMUNICATION (OPT.)
Serial interface:
RS485 2/4-wires / RS232 optically isolated
Protocol: MODBUS RTU
Profibus DP slave
Protocol: Profibus DP VO (slave)
CONFIGURATION VIA PC
Configuration software for Gefran products:
Instruments, Drives; Sensors, Automation.
Compatible with Windows 2000, XP, Vista.
CD-ROM with selectable Italian/English
language, with kit for PC-instrument serial
port connection.
CONNECTIONS
screws
POWER SUPPLY
100...240Vac/dc ±10%,
20...27Vac/dc ±10%,
50/60Hz; 20VA max
Protection via internal fuse, not replaceable
by operator.
PROBE POWER SUPPLY
5/10Vdc - 200mA, 2,5Vdc for potentiometers
TRANSMITTER POWER SUPPLY
24Vdc ±5% - 100mA
WEIGHT
700g
DIMENSIONS
96x96x167mm
ACCESSORIES
Front covers
standard Gefran (see catalog)
GF_eXpress Kit (GF_eXK-0-0-0)
Software on CD-ROM, complete with
RS232/TTL converter cables for PC and
Geflex connection.
| Output | Special function | Serial Interface | Power Supply | Type | Code |
| Pressure Sensor | Fast PID-Control | --- | 20..27Vac/Vdc | 2500-0-0-0-0-0-0 | F28.679 |
| Pressure Sensor | Fast PID-Control | --- | 100..240Vac/Vdc | 2500-0-0-0-0-0-1 | F28.429 |
| Load cell | Fast PID-Control | --- | 20..27Vac/Vdc | 2500-0-0-0-0-0-0 | F28.679 |
| Load cell | Fast PID-Control | --- | 100..240Vac/Vdc | 2500-0-0-0-0-0-1 | F28.429 |
| Pressure Sensor | Fast PID-Control + Analog output |
RS485 | 20..27Vac/Vdc | 2500-0-0-0-W-2-0 | F45.058 |
| Pressure Sensor | Fast PID-Control + Analog output |
RS485 | 100..240Vac/Vdc | 2500-0-0-0-W-2-1 | F28.681 |
| Load cell | Fast PID-Control + Analog output |
RS485 | 20..27Vac/Vdc | 2500-0-0-0-W-2-0 | F45.058 |
| Load cell | Fast PID-Control + Analog output |
RS485 | 100..240Vac/Vdc | 2500-0-0-0-W-2-1 | F28.681 |
