Revision 6
HC900 Process & Safety Controller User and Installation Manual
87
21 April 2017
Step
Procedure
Comments
Reference
5
If installing High Level 16 channel Analog Input module, set its SW1 and SW2 DIP switches to
ON. This connects an internal 250 ohm resistor.
A small slotted screwdriver or paperclip works well; avoid using pencils.
6
If installing 8- or 16-channel Analog Output module, set its DIP switch as follows. (Switch is
located at edge of module, marked “SW1”.)
For internal rack power, set DIP switch to ON.
For external power (18-36V), set DIP switch to OFF (default).
Note: 24VDC external power is required if using 6 or more 8-pt. AO modules or 3 or more 16-pt.
AO modules.
A small slotted screwdriver or paperclip works well; avoid using pencils.
8-16 Analog output Channels require loop power for open loop detection.
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