Filter
Top Products
Communication
64
Powerware
®
9155 UPS (8–15 kVA) User’s Guide S 164201553 Rev D www.powerware.com
Table 11. Programmable Signal Inputs
Signal Description
Disable Bypass Operation If active, the automatic transfer to the static bypass is prevented.
Charger O ff 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 Br eaker 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.