ABB ControlIT 53MC5000 User Manual

Table 12-3. CS21 Two Loop Cascade Controller Datapoints
Data-
point Table Module Title and Function
De-
fault
CON1 Control Related Datapoints (Secondary) (Cont)
C148 5-9 CON1 Remote Setpoint Bias (B1) - This datapoint and Remote
Setpoint Ratio (K1) allow the primary CON0
•
OUT input to be
modified by the CON1 Setpoint Generator.
Setpoint = [CON0
•
OUT X Ratio] + Bias
SP = [CON0
•
OUT X K1] + B1
The B1 and K1 datapoints are modified when the input signal
must be scaled to match the setpoint range desired.
0
C149 5-9 CON1 Remote Setpoint Ratio (K1) - See Remote Setpoint bias (B1)
above.
1
AO1 - Secondary Setpoint Transmit
L473 5-5 AO1 0-20 mA Output - 0 = 4-20 mA signal; 1 = 0-20 mA signal.
Enter a value that matches the required setpoint input signal
range of the chained controller.
0
L120 5-9 CON0 Manual Fallback Disable - 0 = always power up in manual for
Secondary Setpoint; 1 = auto/manual selector unchanged at
power up.
0
L122 5-9 CON0 Hard Manual Limit - 1 = apply output limits to the final output
of the Auto-Manual Generator for the Secondary Setpoint..
Affects both the manual push buttons and the controller’s
result. 0 = do not apply limits.
1
C109 5-9 CON0 Output High Limit - Sets the maximum Secondary Setpoint
output signal value in engineering units.
100
C110 5-9 CON0 Output Low Limit - Sets minimum Secondary Setpoint output
signal value in engineering units.
0
C118 5-9 CON0 Output Slew Rate - It is a rate limit applied to the Secondary
Setpoint value. When configured to a non-zero value, the
output from the Auto-Selector is only allowed to change by
this amount each scan time. A zero disables output slewing.
It does not affect manual operation.
0
CON0 Control Related Datapoints (Secondary Setpoint Transmit)
C106 5-9 CON0 Proportional Band - Is the Primary PV percent of error
required to move the Secondary Setpoint Transmit output full
scale for proportional action.
100
C107 5-9 CON0 Reset Time - Is the number of minutes per repeat of integral
action for Secondary Setpoint Transmit. It is mutually
exclusive with Manual Reset.
0
C108 5-9 CON0 Rate Time - Represents the minutes Secondary Setpoint
Transmit proportional action is advanced.
0
C111 5-9 CON0 Manual Reset - It determines the Secondary Setpoint
Transmit value when the controller is in Auto and the error =
0 (difference between the Primary PV and Primary Setpoint =
0). It is mutually exclusive with Reset Time.
50
4 of 6
Section 12. CS21 - Two Loop Cascade Controller
12-9

ABB ControlIT 53MC5000 Specifications

General

Brand	ABB
Model	ControlIT 53MC5000
Category	Controller
Language	English