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11 – Communications (continued)
11-8 Output Dry Contact Interface Detail
The UPS system has six dry contact output connections. These contacts can be normally open or normally closed.
Default Messages
Contact Message Description
Pin 1-2 Load on inverter The UPS system is working normally.
Pin 3-4 Load on auto bypass The UPS system is in bypass mode.
Pin 5-6 Mains input failure with load on inverter Utility power is absent (blackout) or abnormal. The UPS system is in battery backup mode.
Pin 7-8 Battery low The UPS system is in battery backup mode, and battery voltage is lower than 220V.
Pin 9-10 Bypass input abnormal The bypass input is abnormal (frequency / phase).
Pin 11-12 Battery test failure The battery voltage is lower than the reference value.
Optional Messages
Message Description
Internal communication failure Communication with one of the internal components is not normal.
External parallel communication failure In a parallel redundancy installation, the parallel communication is not normal.
Output overload warning/shutdown The load exceeds the capacity of the UPS system.
Power module fault shutdown The UPS system has shut down due to an internal power module failure.
Power module warning An internal power module has an error, but the UPS system can still function normally.
EPO activated The UPS system’s output is disabled by the emergency power off (EPO) function.
Load on manual bypass The UPS system is in manual bypass mode.
Battery cabinet over temperature warning/shutdown The temperature of the external battery cabinet is too high.
Output voltage abnormal The UPS system’s output voltage is too high or too low.
Battery need replace According to the data in the “BAT DATE SETTING”, the UPS system is overdue for battery
replacement. (See Section 10-10 for more information.)
Bypass over temperature warning/shutdown The temperature of the bypass “static transfer switch” is too high.
Battery ground fault The battery has a grounding error.
Bypass static switch fault The bypass “static transfer switch” is abnormal.
Note: If you require optional messages to be enabled, contact Tripp Lite.
200706017 93-2688 SU manual 4C.indd 48200706017 93-2688 SU manual 4C.indd 48 11/29/2007 2:03:04 PM11/29/2007 2:03:04 PM