Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Instruction Manual - Manual (Page 263)

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