
Circuit diagrams
Manual CWD 2005
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Manual CWD2005.doc
10.2.1.3.
Digital/ Relay contact inputs
The digital control inputs are connected to terminal block X 3
All digital control inputs are protected by internal opto-isolators.
If the control input in question is connected, a LED will display its status.
Control inputs can be user configured from the operating menu and the example
shown below is the standard configuration as delivered from the factory.
Block X 3
Digital
Terminals
Function
Alarm LED
Pin #
1
1
Start measurement
D25
2
Start measurement
2
3
Start calibration
D24
4
Start calibration
3
5
Hold output signal
D23
6
Hold output signal
4
7
Not connected
D22
8
Not connected
5
9
Not connected
D21
10
Not connected
6
11
Not connected
D20
12
Not connected
7
13
Not connected
D19
14
Not connected
8
15
Not connected
D18
16
Not connected
9
17
Not connected
D14
18
Not connected
10
19
Not connected
D15
20
Not connected
11
21
Not connected
D16
22
Not connected
12
23
Not connected
D17
24
Not connected