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5.2.3.4 Std Controller Digital Output assignment
The assignment of the digital output signals depends on the number of channels installed, on the type of configuration selected, for the controller output, whether it is
to operate on a 4–20 analog signal or on contacts closure, and on the cleaning option configuration, as per the following table:
Controller Type CCO1 CCO2 CCO3 CCO4 CCO5 CCO6 CCO7
Controller Model
AW402 Without
Cleaning
Analog output PID
HI Alarm Ch. 1
(1)
LO Alarm Ch 1
(1)
HI Alarm Ch. 2
(2)
LO Alarm Ch. 2
(2)
HI Alarm Ch. 3
(if Ch. 3 installed)
LO Alarm Ch. 3
(if Ch. 3 installed)
Watch
dog
Controller Model
AW402 Without
Cleaning
Contacts out PID
HI Alarm Ch. 1
(1)
LO Alarm Ch 1
(1)
PID control output
(decrease)
PID control output
(increase)
HI Alarm Ch. 3
(if Ch. 3 installed)
LO Alarm Ch. 3
(if Ch. 3 installed)
Watch
dog
Controller Model
AW402
With Cleaning
Analog output PID
HI Alarm Ch. 1
(1)
LO Alarm Ch 1
(1)
HI Alarm Ch. 2
(2)
LO Alarm Ch. 2
(2)
Washing command
(See Par. 4.4.1.3)
Washing command
(See Par. 4.4.1.3)
Watch
dog
Controller Model
AW402
With Cleaning
Contacts out PID
HI Alarm Ch. 1
(1)
LO Alarm Ch 1
(1)
PID control output
(decrease)
PID control output
(increase)
Washing command
(See Par. 4.4.1.3)
Washing command
(See Par. 4.4.1.3)
Watch
dog
(1) If two/three identical sensors/channels are installed, and PID option is selected on Channel 2/3, the alarm is based on the average of the two/three measured
values
(2) If two/three identical sensors/channels are installed, and PID option is selected on Channel 2/3, the alarm is triggered by the first of the two/three measured values
that reaches the alarm level configured (first-out functionality) .
Table 11 – Std. Controller Digital Output assignments
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