¶ Wiring a WatchMon to a Fan, Contactor etc
Warning: If powering an expansion board, it should be at the same voltage as the WatchMon.
Warning: For large (or unknown) loads, make sure you use an external relay/SSR (solid state relays) that is appropriate for the rated purpose.
¶ Options for Wiring
Choose the appropriate option for your needs:
- Wiring to WatchMonCORE Onboard Relay A
- Wiring to Expansion Board 3, Onboard Relay 1, 2 or 3
- Wiring to Expansion Board 3, Onboard Solid State Relays 5, 6 and 7
- Wiring to Expansion Board 2, Relay 1 or Relay 2
- Wiring to Expansion 2 Board Solid State Relays 3 or 4
¶ Limitations
With a 48V circuit breaker, an external relay appropriately sized, and Mosfets that can handle 48V on either the WatchMon or Expansion 2 or Expansion 3 Solid State Relays 60V / 5A can be used.
The Mechanical Relays on Expansion 2 and Expansion 3 are rated to 30V / 5A only.
Expansion board if powered should be at the same voltage as the WatchMon.
¶ Wiring to WatchMonCORE Onboard Relay A
- Mechanical relay Max 30Vdc 5A
- Labelled as Relay A
- User-defined function
Note: Relay 1 and Relay 2 are mechanical and rated to 30V / 5A
¶ Wiring to Expansion Board 3, Onboard Relay 1, 2 or 3
- Up to 3 Mechanical relay Max 30Vdc 5A.
- Labelled as Relay 1, 2, and 3.
- User-defined function.
Note: Relay 1, 2 and 3 are mechanical and rated to 30V / 5A
¶ Wiring to Expansion Board 3, Onboard Solid State Relays 5, 6 and 7
- Up to 3 Solid State Relay SSR 3 to 65Vdc 5A (1-way disconnect)
- Labelled as SSR 5, 6, and 7
- User-defined function(s)
Note: Relay 5, 6 and 7 are Solid State Relays and hence rated to 60V / 5A
¶ Wiring to Expansion Board 2, Relay 1 or Relay 2
Note: Relay 1 and Relay 2 are mechanical and hence rated to 30V / 5A
¶ Wiring to Expansion 2 Board Solid State Relays 3 or 4
Note: Relay 3 and Relay 4 are Solid State Relays and hence rated to 60V / 5A
¶ Set Expansion Settings
Set Output to Critical Pulse OFF so that if in Critical state it will get a 2000ms pulse sent when Critical State turns to OFF used to trigger Circuit Breakers.
If using a sensing input, the input should be set to “Critical contact sensor”.
