6
Override Cards
For large relays or devices that cannot be powered directly from a standard
output, you will need to install an output override card. Override cards provide:
◆
a wide choice of output signals.
◆
a slide switch for automatic or manual control.
◆
an LED for assessment of the output state.
The following Override Cards are available from KMC Controls.
Note
Output cards must be powered with 24 VAC to enable the manual override
(HAND) function. However, this connection must not be made until the default
analog output jumper is removed.
Installing Override Boards
To install an Override Board:
1. Remove the appropriate cover from the module. The upper cover is for out-
puts 1–8 the lower for outputs 9–12.
2. Remove the jumper from the mounting header.
3. Press the override board onto the header pins. The “Hand-Off-Auto” selection
switch is always positioned toward the output connections. (Refer to Illustra-
tion 4.)
4. If required, set the selection switch on the Override Board.
Installation
KMD-5831 PLC-28 Direct Digital Controller Installation & Operation Guide
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Table 1. KMD-5831 Override Board Options
