990-6399-001

Signal Connections

AUX Switch Signal

NOTE: These signal cables are non-Class 2/non-SELV.
NOTE: To use Class 2/SELV signal cables, you can connect the maintenance bypass breaker MBB to J2 instead.
Terminal Function  
J14-1 Maintenance bypass breaker (MBB) AUX switch
J14-2 Signal ground (GND)
J14-3 Unit output breaker (UOB) AUX switch
J14-4 Signal ground (GND)
J15-1 Static switch input breaker (SSIB) AUX switch
J15-2 Signal ground (GND)
J15-3 Unit input breaker (UIB) AUX switch
J15-4 Signal ground (GND)

Backfeed Signal

NOTE: These signal cable connections are non-Class 2/non-SELV.

Backfeed 1: Backfeed on bypass.

Backfeed 2: Backfeed on input.

Terminal Function  
J16-1 Backfeed relay 1 common
J16-3 Backfeed relay 1 normally open (NO)
J16-5 Backfeed relay 1 normally closed (NC)
J17-1 Backfeed relay 2 common
J17-3 Backfeed relay 2 normally open (NO)
J17-5 Backfeed relay 2 normally closed (NC)

EPO Signal

NOTE: These signal cables are Class 2/SELV.
Terminal Function  
J1-1 EPO input contact normally open (NO)

EPO Normally Open (NO)

EPO Normally Closed (NC)

J1-2 +12 V
J1-3 EPO input contact normally closed (NC)
J1-4 +12 V

Maintenance Bypass Breaker (MBB) Signal

NOTE: These signal cables are Class 2/SELV.
NOTE: To use non-Class 2/non-SELV signal cables, you can connect the maintenance bypass breaker MBB to J14 instead.
Terminal Function  
J2-1 Internal use
J2-2 Internal use
J2-3 Maintenance bypass breaker (Ext. MBB) AUX switch
J2-4 Signal ground (GND)

Battery Signal

NOTICE
risk of equipment damage
The battery breaker contact drive J3, J4-1, and J4-2 can provide a maximum of +24 VDC 250 mA to the undervoltage release coil or shunt trip release coil. If this value is exceeded, it can damage the UPS.
Failure to follow these instructions can result in equipment damage.
NOTE: These signal cables are Class 2/SELV.
Terminal Function  
J3-1 Battery relay 1, normally closed (NC)*
J3-2 Battery relay 1, signal ground (GND)
J3-3 Battery relay 2, normally closed (NC)*
J3-4 Battery relay 2, signal ground (GND)
J4-1 Battery relay 3, normally closed (NC)*
J4-2 Battery relay 3, signal ground (GND)
J4-3 BB1 AUX switch
J4-4 Signal ground (GND)
J5-1 BB2 AUX switch
J5-2 Signal ground (GND)
J5-3 BB3 AUX switch
J5-4 Signal ground (GND)

Input Contact Signal

NOTE: These signal cables are Class 2/SELV.
Terminal Function  
J6-1 Input contact 1, select function via display
J6-2 Input contact 1, signal ground (GND)
J6-3 Input contact 2, select function via display
J6-4 Input contact 2, signal ground (GND)
J7-1 Input contact 3, select function via display
J7-2 Input contact 3, signal ground (GND)
J7-3 Input contact 4, select function via display
J7-4 Input contact 4, signal ground (GND)
J8-1 Input contact 5, select function via display
J8-2 Input contact 5, signal ground (GND)
J8-3 Input contact 6, select function via display
J8-4 Input contact 6, signal ground (GND)

Output Relay Signal

NOTE: These signal cables are Class 2/SELV.
Terminal Function  
J9-1 Output relay 1, normally open (NO)
J9-2 Output relay 1, common
J9-3 Output relay 2, normally open (NO)
J9-4 Output relay 2, common
J10-1 Output relay 3, normally open (NO)
J10-2 Output relay 3, common
J10-3 Output relay 4, normally open (NO)
J10-4 Output relay 4, common
J11-1 Output relay 5, normally open (NO)
J11-2 Output relay 5, common
J11-3 Output relay 6, normally open (NO)
J11-4 Output relay 6, common
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