Eaton Powerware 9355 - Programmable Signal Inputs

COMMUNICATION
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
59
Programmable Signal Inputs
The UPS incorporates two programmable signal inputs (see Figure 32 on page 47).
Use of non-polar (relay) control input is recommended. The pins must be shorted with
maximum resistance of 10 ohm to activate the specific input.
NOTE See Figure 42 on page 57 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 5.
Table 5. 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.