Wiring and Connections - Optional Expansion Board
5.2.3Setting the Digital Output DIP Switches
Each digital output on the optional Expansion Board has an associated DIP switch that can deter- mine its operation in the event of loss of communication with the Universal Monitor or loss of power.
When the Universal Monitor calls for an Expansion Board output to be ON, it sends a command to the Expansion Board to turn the output to the ON state; this is signified by the output LED being ON. The behavior of the output when it is ON is determined by the position of the DIP switch.
The DIP switches for the outputs are on a switch bank on the right side of the Expansion Board, as shown below. Each switch corresponds to an output on the board in order from left to
Optional
Expansion
Board
EIA485 + (to
0V
EIA485 - (to UM+)
USE COPPER (CU) CONDUCTORS ONLY.
POWER INPUT | RELAY OUTPUTS |
D6 |
| V2 | V4 | V6 | V8 | V10 | V12 | V14 | V16 | |
| V1 | V3 | V5 |
| V7 | V9 | V11 | V13 | V15 | |
| 168AOMultiflex |
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S4 | S3 | S2 | S1 |
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| Digital output |
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| K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 |
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| OUT1 | OUT2 |
| OUT3 | OUT4 | OUT5 | OUT6 | OUT7 | OUT8 | DIP switches |
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DEFAULT SETTINGS FOR USE WITH UNIVERSAL MONITOR
Tables 10 and 11 show how to set the DIP switch for each output based on how the output is wired (see 5.2.2 - Connecting Digital Outputs) and how you want it to perform during normal operation, when communication with the Universal Monitor is lost or when power fails.
NOTE
After a loss of communications with the Universal Monitor, there is a time
Table 10 DIP switch setting - outputs wired as Normally Closed (N.C.)
If Output |
| State of Output When: |
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DIP Switch | Light is | Light is | Communication | Power |
is: | ON | OFF | with UM is Lost | Fails |
Up (ON) | Closed | Open | Closed | Closed |
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Down (OFF) | Open | Closed | Closed | Closed |
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N.C. | N.O. |
Wire connected to N.C. terminal
Table 11 DIP switch setting - outputs wired as Normally Open (N.O.)
If Output |
| State of Output When: |
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DIP Switch | Light is | Light is | Communication | Power |
is: | ON | OFF | with UM is Lost | Fails |
Up (ON) | Open | Closed | Open | Open |
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Down (OFF) | Closed | Open | Open | Open |
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N.C. | N.O. |
Wire connected to N.O. terminal
The Expansion Board comes from the factory with all digital output DIP switches in the OFF position (normally open). The DIP switch setting for each digital output can be changed to ON (normally closed).
To change the state of any output to the factory default of NO (Normally Open) or to NC (Normally Closed), move each switch to the appropriate position:
•Move the switch down to the OFF position for NO (Normally
•Move the switch up to the ON position for NC (Normally Closed).
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