66 Eaton 9155 UPS (8–15 kVA) User’s Guide 164201553—Rev H0
Table 8. Programmable Signal Inputs
Signal Description
Disable Bypass
Operation
If active, the automatic transfer to the static bypass is prevented.
Charger Off
If active, the battery charge function is disabled. In a utility power outage, the discharge of batteries is
supported.
Remote ON/OFF
If active, the UPS output turns off regardless of the mode of operation. Auxiliary power, fan,
communication, and rectifier/battery charger remain functional. Restart is initiated immediately when
this signal is inactive.
Request Bypass
If active, the UPS transfers to bypass if the bypass voltage, frequency, and synchronization are all okay.
Request Normal
If active, the UPS transfers to inverter operation if not prohibited by REPO or an alarm condition.
Force Bypass
If active, the UPS is forced to static bypass operation regardless of the bypass status.
External Battery
Breaker Status
If active, the UPS knows that the batteries are disconnected.
Building Alarm 1–6
These alarms can be activated separately or at the same time with other building alarms.
Not in Use
Default
Shutdown
If active, the UPS shuts down immediately.
Delayed Shutdown
If active, the UPS shuts down after a user-configured delay time. Default shutdown delay is 120
seconds. The UPS automatically restarts when the signal changes to inactive.
Normal/Bypass
If active, the UPS transfers to bypass if okay. If inactive, the UPS transfers to the inverter when
possible.
On Generator
If active, the UPS knows that input is fed from the generator. Bypass is disabled; the automatic battery
test is disabled.
External Transformer
Overtemperature
This option is not used.
Communication
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