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VOICECOM USER MANUAL ISSUE 4
Relay Outputs and Digital I/O – Level 5
The three pages on this menu level show the current state of the VCA’s four relays, four digital outputs and fourteen
digital inputs. These pages are useful for fault finding.
1
5 Dig IO Information
Relay Outputs
RL-1 RL-2 RL-3 RL-4
In
Out Out Out
2
3
4
5
Relay Outputs Page
Figure 23 - Relay Output Status Page
1
Menu level
4
Relay 3 state
2
Relay 1 state
5
Relay 4 state
3
Relay 2 state
In = Energised, Out = De-energised
Relay 1 – VCA hardware healthy. This relay should always be energised while the controller is powered. If a VCA
memory fault or Message Bank processor fault occurs, this relay will de-energise.
Relay 2 – no function
Relay 3 – Pre-start alarm LINE 1 confirmed
Relay 4 – Pre-start alarm LINE 2 confirmed
Digital Output Page
1
5 Dig IO
Lock o/o
Digital Outputs
DO-1 DO-2 DO-3 DO-4
o/o o/o o/o o/o
2
3
4
5
Figure 24 - Digital Outputs Status Page
1
Menu level
4
Digital output 3 state
2
Digital output 1 state
5
Digital output 4 state
3
Digital output 2 state
o/o = unasserted (open), o-o = asserted (closed)
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