Eaton Powerware 9155 - Programmable Signal Inputs

COMMUNICATION
EATON Powerware
®
9155 UPS (8–15 kVA) User’s Guide S 164201553 Rev F www.powerware.com
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Programmable Signal Inputs
The UPS incorporates two programmable signal inputs (see Figure 36 on page 49).
Use of non-polar (relay) control input is recommended. The pins must be shorted with
maximum resistance of 10 ohm in order to activate the specific input.
NOTE See Figure 43 on page 54 for the polarity and verify these connections if polarity control is required.
The default and programmable settings for the signal inputs are shown in Table 7.
Table 7. Programmable Signal Inputs
Signal Description
Disable Bypass O peration 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.