Detail GEFRAN Controller, Type: 3400 / 4400 CONFIGURABLE CONTROLLERS
3400 / 4400 CONFIGURABLE CONTROLLERS
Main features
• Cascade control
• Ratio control
• Square root extraction on input signal
• Programmer with 4 setpoints and
4 ramps
• Thermocouple or resistance
thermometer inputs and linear inputs
with configurable scale and
linearisation
• Isolated inputs for remote setpoint,
valve position feedback signal or load
break detection
• Two control outputs with
independent PID parameters
( Heat/ Cool)
• AUTO/ MAN station with bumpless
transfer incorporated
• Configurable output for a
retransmission signal
• Serial line: optoisolated 4-wires
configurable.
Protocol: GEFRAN CENCAL
Main applications
• Climatic chambers and test
benches
• Furnaces and ovens that require
a setpoint that varies with time
• Steriliser, autoclaves,
dryers, plant for transformation
• Chemical and pharmaceutical
industries
• Food processing plants
• Water treatment
• Siderurgy industry
• Furnaces for ceramics and
bricks
• Heat exchange control
TECHNICAL DATA
INPUTS
Accuracy 0, 1% f.s. ± 1 digit
Sampling time 120msec
TC- Thermocouple
J ( Fe-CuNi) 0...1000° C / 32...1832° F
K ( NiCr-Ni) 0...1300° C / 32...2372° F
R ( Pt13Rh-Pt) 0...1750° C / 32...3182° F
S ( Pt10Rh-Pt) 0...1750° C / 32...3182° F
T ( Cu-CuNi) -100...400° C / -148...752° F
B ( Pt30Rh-Pt6Rh) ( * ) 50...1800° C / 122...3272° F
E ( NiCr-CuNi) -100...750° C / -148...1382° F
N ( NiCr-Si-NiSi) 0...1300° C / 32...2372° F
Ni-Ni18Mo ( Ni-Ni18Mo)
0...1100° C/ 32...2012° F
( * ) for type B thermocouples, the class of
accuracy is valid for temperatures above
500° C.
RTD 2/ 3-wires
Pt100 -200...600° C / -328...1112° F
DC - Linear
0...50mV, 10...50mV
External shunts are used for voltage ran-
ges 0...10V and current ranges of
0...20mA and 4...20mA.
Custom 32 segment characterisation.
Ri > 1M& .
Auxiliary input
Isolated 1500V
For remote setpoint:
0...10V - Ri > 100K&
0...20mA - Ri = 50&
4...20mA - Ri = 50&
For potentiometer:
0...1V - Ri > 10M& ( potentiometer with
value from 100& to 20K& )
For current transformer:
0...5Aac, 50/ 60Hz - Ri = 20m&
Digital
Isolated 1500V
3 isolated command inputs for
Start/ Stop/ Reset functions, Set
Locale/ Remoto, Auto/ Man, Hold, direct
selection of one of the four program set-
points:
- NPN 12V/ 3, 5mA
- PNP 24V/ 6mA ( 12V/ 2mA)
OUTPUTS
Isolated 1500V
Maximum and minimum adjustment from
the faceplate keys:
• Direct control ( Heat)
• Inverse control ( Cool)
• Retransmission of local or remote set-
point
• Retransmission of the input signal
• Retransmission of the deviation signal
between the values of the setpoint and
the input.
• Alarm 1 or 2
• Open/ Close for valve positioner motor
Continuous
0...10V max 20mA
0...20, 4...20mA Rmax = 500&
Resolution 4000 steps, max. update time
80msec.
Relay
Contact, which can be selected as
NO/ NC rated at 5A/ 250Vac at cosÕ = 1
( with resistive load) with spark suppres-
sion on the NO contact.
Logic
23Vdc, Rout = 470& ( 20mA, max.12V) .
Voltage output for SSRs.
MD81
MD81 expansion unit of the alarms
( alarms 3...10)
SERIAL LINE
The instrument is equipped with Passive
Current Loop ( 1200 baud) interface or
RS422/ 485, RS232 ( 1200 / 2400 / 4800 /
9600 baud) .
Protocol: GEFRAN CENCAL
POWER SUPPLY
100...240Vac/ dc ± 10% , 50/ 60Hz
12VA max ( 3400) , 15VA max. ( 4400)
Protection by internal fuse not serviceable
by the user.
Tampilkan Lebih Banyak