C1477B User Manual (UMC1477BR04)
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Copyright Omniflex
4. ELECTRICAL INSTALLATION
4.1 Introduction
All electrical connections to the Omni8
are made on the rear of the unit on plug-in terminals
provided (refer to Figure 1-2).
4.2 Connection Table
Terminal
Number
Description
1
Input 1
2
Input 2
3
Input 3
4
Input 4
5
Input 5
6
Input 6
7
Input 7
8
Input 8
9
Common Input Excitation Voltage ( +12volts for contact wetting)
10
Relay Change-over Contact
– Normally Open Connection
11
Relay Change-over Contact
– Common Connection
12
Relay Change-over Contact
– Normally Closed Connection
13
No Connection
14
Earth
15
+ dc Power Connection
Live ac Power Connection
16
- dc Power Connection
Neutral ac Power Connection
4.3 Connecting the alarm inputs
The Omni8
is operated with potential free contacts connected to the input terminals. The
common terminal provided (marked C) supplies a +12 volt wetting potential used to power these
contacts.
Omni8u
C
8
7
6
5
4
3
2
1
Potential-free
Input
contacts
Figure 4-1 Inputs Connection Diagram
