Single Module UPS Installation
1.8.4Output Dry Contacts
There are three output dry contact relays at the X1 slot (see Figure 5 and Table 6)
Figure 5 Output dry contacts and EPO wiring
+12V
X1
J13
J21 | J25 |
J28
X2
BFP C | BFP S | BFP O |
INV C | INV S | INV O | ACF C | ACF S | ACF O |
EPO - NO EPO - NC
Table 6 | Output dry contact relays | ||
Position |
| Name | Description |
J13.2 |
| BFP_O | Bypass feedback protection relay; normally open; closed when bypass SCR is shorted |
|
|
|
|
J13.3 |
| BFP_S | Bypass feedback protection relay center |
|
|
|
|
J13.4 |
| BFP_C | Bypass feedback protection relay; normally closed; open when bypass SCR is shorted |
|
|
|
|
J21.2 |
| INV_O | Inverter mode relay; normally open; closed when UPS is in inverter mode |
|
|
|
|
J21.3 |
| INV_S | Inverter mode relay center |
|
|
|
|
J21.4 |
| INV_C | Inverter mode relay; normally closed. Opened when UPS is in inverter mode |
|
|
|
|
J25.2 |
| ACF_O | Main input fault relay; normally open. Closed when main input is in fault |
|
|
|
|
J25.3 |
| ACF_S | Main input fault relay center |
|
|
|
|
J25.4 |
| ACF_C | Main input fault relay; normally closed. Open when main input is in fault |
|
|
|
|
NOTE
All auxiliary cables of terminal must be
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