172-65710M-04 (SC-F71 Parameters/Functions) 23 Dec 2021
253
Differential temperature control” in Function block No. 58: Select function for Input
2 (Engineering mode), AND choose “3 to 7 (Pressure control operation [MC-
(V)COS(R)])” or “8 and 9 (Temperature control operation [MC-(V)COS(R)])” in
Function block No.52: Input 2_Control action (Engineering mode).
Input 2_Temperature limiter unit [Engineering Mode: Function block No. 54
(
Fn54
)]
Parameter symbol
Data range
Factory set value
2.P ru N
0:
C
1:
F
Same as Input 1_
Temperature limiter unit
To display “Input 2_Temperature limiter unit”, choose “2-loop control/Differential
temperature control” in Function block No. 58: Select function for Input 2
(Engineering mode), AND choose “9: Temperature control operation [MC-
VCOS(R)] in Function block No. 52: Input 2_Control action (Engineering mode),
AND choose “Current” or “Voltage input” in Function block No. 22: Input 2_Input
type (Engineering mode).
Input 2_Return bias [Engineering Mode: Function block No. 54 (
Fn54
)]
Parameter symbol
Data range
Factory set value
2. o b
-50.0 to 50.0%
0.0
Do not change the factory set value.
TLV engineers may change the value to adjust the controllability after
checking the users’ applications and conditions. Unnecessary changes
to values may affect controllability. Please contact TLV for details.
To display “Input 2_Regression equation bias”, choose “2-loop control/Differential
temperature control” in Function block No. 58: Select function for Input 2
(Engineering mode), AND choose “3 to 7 (Pressure control operation [MC-
(V)COS(R)])” or “8 and 9 (Temperature control operation [MC-(V)COS(R)])” in
Function block No.52: Input 2_Control action (Engineering mode).
Input 1_ Proportional band [heat-side] [Parameter Setting Mode: Parameter
group No. 51 (
Pn51
)]
Parameter symbol
Data range
Factory set value
1. P
TC/RTD inputs: 0 (0.0, 0.00) to Input 1_Input span
(Unit:
C [
F])
(When Control with PV select: 0 to PV select input span)
[Varies with the setting of the Decimal point position.]
Voltage (V)/Current (I) Input: 0.0 to 1000.0% of Input 1_Input
span
(When Control with PV select: 0.0 to 1000.0% of PV select
input span)
0 (0.0, 0.00): ON/OFF action
NOTE: 0 (0.0, 0.00) cannot be set when a setting
“Temperature control operation [MC-(V)COS(R)] is
selected in Input 1_control action.
TC/RTD inputs: 30
V/I inputs: 3.0
To display
“Input 1_Proportional band [heat-side]”, choose a setting other than
“3 to 7 (Pressure control operation [MC-(V)COS(R)])” in Function block No.51:
Input 1_Control action (Engineering mode).
NOTE
Summary of Contents for SC-F71
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Page 18: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 17 Differential temperature control ...
Page 114: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 113 Setting procedure ...
Page 131: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 130 Setting procedure ...
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Page 293: ...172 65710M 04 SC F71 Parameters Functions 23 Dec 2021 292 Checking PID values ...
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