42
5.2.3.2
Std Controller Analog Output assignment
The
assignment
of
the
analog output signals depends on the number of channels installed and on the type of configuration select
ed for the controller output, whether it
is to operate on a 4–20 analog signal or on contacts closure, as per the following table:
Type of Controller
Output option
4–20 mA Channel 1
4–20 mA Channel 2
4–20 mA Channel 3
Analog output
PID Control output
Controller AW402
With 1 Channel installed
Contacts output
Measured value retransmission of
Channel 1 analysis
---
---
Analog output
PID Control output
Measured value retransmission of
Channel 1 analysis (1)
Controller Mod AW402
With 2 Channels installed
Contacts output
Measured value retransmission of
Channel 1 analysis
Measured value retransmission of
Channel 2 analysis (1)
---
Analog output
PID Control output
Measured value retransmission of
Channel 1 analysis (1)
Controller Mod AW402
With 3 Channels installed
Contacts output
Measured value retransmission of
Channel 1 analysis
Measured value retransmission of
Channel 2 analysis (1)
Measured value retransmission of
Channel 3 analysis
(1) If the two sensors/channels are identical, and the PID option is selected on Channel 2, the output becomes the average of t
he two measured values
Table 9 - Std Controller Analog Outputs
5.2.3.3
Std Controller Digital Input assignment
The Digital Input functionality is identical for all type of instrument selected, as per following table:
CCI in ‘OR’ SELECTION
CCI1
CCI2
CCI in ‘OR’ =
NO
Freezes measured value of Channel 1
Freezes measured value of Channel 2
( Channel 3 alone cannot be frozen)
CCI in ‘OR’ =
YES
Freezes measured value of all Channels installed
Forces to 0 PID1 output signal
Table 10 - Digital Input Functionality for Controller
Summary of Contents for AW400 Series
Page 1: ...Instruction Manual IM AW4TX Issue 5 Chlorine Transmitter AW400 Series ...
Page 69: ...67 Notes ...
Page 70: ...68 ...
