ABB ControlIT 53MC5000 User Manual

14.2 CS40 CONTROL SIGNALS
Loading CS40 connects the 53MC5000 Controller function blocks for operation as a Dual Two
Loop Cascade Controller. As shown in Figure 14-1, CS40 provides ten control signals which are
described in Table 14-1 as follows:
Table 14-1. CS40 Control Signals
Control
Signal Definition
Cord
Set
ITB
Rear
Term
Board
Signal
AI0 - #1 Primary
Process
Variable
This analog input signal represents the value of
the #1 Primary Process Variable to be
manipulated by the controller. It is compared to
the #1 Primary Setpoint to determine the
setpoint value for the #1 Secondary Process
Variable loop.
TB1-1 (+)
TB1-2 (-)
TB1-3
1 (+)
2 (-)
3
+24 V
AI0
SC
AI1 - #2
Primary
Process
Variable
This analog input signal represents the value of
the #2 Primary Process Variable to be
manipulated by the controller. It is compared to
the #2 Primary Setpoint to determine the
setpoint value for the #2 Secondary Process
Variable loop.
TB1-5 (+)
TB1-6 (-)
TB1-7
4 (+)
5 (-)
6
+24 V
AI1
SC
AI2 - #1
Secondary
Process
Variable
This analog input signal represents the value of
the #1 Secondary Process Variable to be
manipulated by the controller. It is compared to
the #1 Secondary Setpoint to determine the #1
Secondary Control Output.
TB1-9
TB1-10 (+)
TB1-11 (-)
1
7 (+)
8 (-)
+24 V
AI2
SC
AI3 - #2
Secondary
Process
Variable
This analog input signal represents the value of
the #2 Secondary Process Variable to be
manipulated by the controller. It is compared to
the #2 Secondary Setpoint to determine the #2
Secondary Control Output.
TB1-13
TB1-14 (+)
TB1-15 (-)
4
9 (+)
8 (-)
+24 V
AI3
SC
AO0 - #1
Secondary
Control Output
This is the 4-20 mA output signal that drives the
#1 final control element.
TB1-17 (+)
TB1-18 (-)
10 (+)
11 (-)
AO0
PC
AO1 - #2
Secondary
Control Output
This is the 4-20 mA output signal that drives the
#2 final control element.
TB1-19 (+)
TB1-20 (-)
12 (+)
11 (-)
AO1
PC
DI0 - #1
Cascade
Enable
When a closed contact is present on this input,
cascade #1 operation is enabled if the R/L push
button is in Remote.
TB2-1 (+)
TB2-2 (-)
13 (+)
14 (-)
DI0
PC
DI1 - #2
Cascade
Enable
When a closed contact is present on this input,
cascade #2 operation is enabled if the R/L push
button is in Remote.
TB2-3 (+)
TB2-4 (-)
15 (+)
14 (-)
DI1
PC
DO0 - # 1
Secondary
Process
Alarms
This contact is closed when the #1 Secondary
Process Variable value is not within the C175
and C176 datapoint values (#1 Secondary
Alarm Limits 1 and 2); otherwise, the contact is
open.
TB2-5 (+)
TB2-6 (-)
16 (+)
17 (-)
DO0
PC
1 of 2
53MC5000 Process Control Station
14-2

ABB ControlIT 53MC5000 Specifications

General

Brand	ABB
Model	ControlIT 53MC5000
Category	Controller
Language	English