Features
A maximum of seven event inputs can be specified. A
maximum of five outputs can be specified, and various output
functions (control output, analog retransmission, event up to 4)
can be allocated in output logic operation.
Numerous Inputs and Outputs
The FB Series has a second communication port (COM2) for inter-
controller communication. It achieves more precise cascade control
and ratio control by sending data via digital communication while
conventional cascade controllers send data to slave controllers by
analog signal with less resolution.
Inter-controller Communication
The FB900/400 Series temperature controller has Recipe
(Multi-memory Area) function which stores up to 8 sets of
control parameters.
Up to 16-segment ramp/soak control is available by using the
memory area function (ramp-to-set point UP and DOWN, soak
time, link area number).
Ramp / Soak Program Control
1
2
3
4
5
6
7
8
Set value
Event 1 to 4 Set Value
Proportional band
(Heat and Cool)
Integral time
(Heat and Cool)
Derivative time
(Heat and Cool)
Link area number
Control response
Overlap/Deadband
Manual reset
Ramp-to-setpoint
(Up and Down)
LBA time Set value
Area soak time
Link area number
< Link example of each area >
Temp.
Time
PA
Area 1
soak time
Area 1
SO changing rate
limiter (High)
Area 2
SO changing rate
limiter (High)
Memory area 1 Memory area 2
Area 2
SO
Area 1
SO
Area 3
SO
Memory area 3
Area 2
soak time
Area 3
soak time
Area 3
SO changing rate
limiter (Low)
• Available inputs and outputs depend on the specifications.
Temperature/Process Controller FB900/400
0000
0001
0002
0003
1500
1501
1502
1503
1504
1505
1506
PV monitor
SV monitor
PV monitor
SV monitor
Event monitor
Proportional band
Integral time
Derivative time
CT1 monitor
CT2 monitor
RUN/STOP status
PV monitor
SV monitor
Event monitor
Proportional band
Integral time
Derivative time
RUN/STOP status
"Seven parameters from 0XX0"
User mapping area
(Up to 16 parameters)
(RS-485)
Inter-controller Communication
Up to
32 units
Group 1 Group 2
Group 16
When automatic temperature rise is not set When automatic temperature rise is set
CH A
CH A wait
B
D
C
All CH
CH B wait
CH C wait
Auto-temperature-rise with learning function achieves temperature
uniformity at ramp-up without partial thermal expansion even when
using multiple FB Series controllers.
• Up to 32 controllers with 16 groups can be configured.
Auto-temperature-rise with Learning Function
• Auto-temperature-rise function is not available with Heat/Cool PID
control toe.
Master Slave
Master Slave
Group 1 Group 1
CH1 CH3CH2
CH4 CH1 CH3CH2 CH4
SV
MV
Ratio Ratio
SV SV SV
SV SV SV
STOP STOP STOP STOP
RUN RUN RUN RUN
It is effective when a thermal time-delay exists between the heat
source and a control point. A maximum of 30 slave controllers can
be connected to one master controller.
If the master controller changes the control set value, the slave
controllers will also change the set values by following preset ratios
to the master.
When RUN/STOP mode is changed on one controller in a group,
the mode of all the other controllers in the same group will be also
automatically changed.
• Up to 32 controllers with 16 groups can be configured.
Temperature Ratio Setting
Group RUN/STOP Function
Cascade Control
• Up to 32 controllers with 16 groups can be configured.
(Note) Time lag among controllers caused by inter-controller communication is (Max.70ms) x (number of controllers connected).
Please consider the time lag of inter-controller communication for high-speed process control in which process changes rapidly.
Temperature rise completion
All CH
Temperature rise completion
Start
Start
Ratio
Ratio
Ratio
Ratio
2 FB_01E
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