Manual 26166V1 MicroNet Simplex & MicroNet Plus
Woodward 101
8.6.2—Installation
The modules slide into card guides in the control's chassis and plug into the motherboard. The modules
are held in place by two screws, one at the top and one at the bottom of the front panel. Also at the top
and bottom of the module are two handles which, when toggled (pushed outward), move the modules out
just far enough for the boards to disengage the motherboard connectors.
This module receives digital data from the CPU and generates 64 non-isolated relay driver signals. All
discrete output modules in the system interface to one or more Woodward Relay Modules, each with 16
or 32 relays. The contacts of these relays then connect to the field wiring.
A separate 24 Vdc power source must be provided for the relays; this module does not furnish this power.
A section of a multi-output Main Power Supply can be used, or power from a single-output Main Power
Supply can be used, as long as sufficient current is available.
Each 64Ch DO Module is connected through two low density discrete cables to two 32Ch Relay modules
or two 16Ch Relay modules daisy chained to two additional 16Ch Relay modules with two additional low
density cables. See Figure 8-32 for system installation configuration.
Power Supply
#1
Power Supply
#2
CPU
64
DO
Or
J1
P2
J1
P1
32Ch Relay Module
(Channels 33-64)
J1
P2
16Ch Relay Module
(Channels 33-48)
J2
P1
16Ch Relay Module
(Channels 49-64)
J1
P2
Low Density Cable
J2
P1
J1
P2
32Ch Relay Module
(Channels 1-32)
J1
P2
16Ch Relay Module
(Channels 1-16)
J2
P1
16Ch Relay Module
(Channels 17-32)
J1
P2
Low Density Cable
Low Density Cable
Low Density Cable
Or
Figure 8-17. 64Ch DO Module with Relay Modules
See Chapter 13 for field wiring of discrete output relays.
Figures 8-18 and 8-19 illustrate examples different discrete output wiring configurations.
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