Eaton BladeUPS 5 kVA to 60 kVA (N+1) User’s Guide 164201649—Rev 14 113
66..88 PPrrooggrraammmmaabbllee SSiiggnnaall IInnppuuttss
The UPS incorporates two programmable signal inputs (seeFigure 78 ). 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 78 for the polarity and verify these connections if polarity control is required.
Table 18 shows the programmable settings for the signal inputs.
Table 18. Programmable Signal Inputs
Signal
Description
empty
Not in use (default).
building alarm 1–2
These alarms can be activated separately or at the same time with other building alarms.
Building alarms are local only to the UPS.
on generator
If active, the High Efficiency setting is disabled (BladeUPS 12i model only) and battery tests are
disabled.
1
ext battery breaker If active, the UPS knows that the external batteries are disconnected.
2
request bypass If active, the UPS transfers the load to bypass when the bypass voltage, frequency, and phase
rotation are within the allowed limits.
1
force bypass If active, the UPS is forced to static bypass operation regardless of the bypass status.
1
on/OFF If active, the UPS output turns off regardless of the mode of operation. Auxiliary power,
communication, and rectifier/battery charger remain functional. Restart is initiated immediately
when this signal is inactive.
2
charger off If active, the battery charge function is disabled. In a utility power outage, it supports the
discharge of batteries.
2
1
Program for only one UPS in a parallel system.
2
Program for all UPSs in a parallel system. The UPS may restart unexpectedly if a logic power reset occurs after the OFF command
is given. If you need to ensure the UPS remains off, use the REPO function.
Use the programmable signal inputs to emulate some of the features usually seen on larger three-phase
systems. For example:
• Configure the signal from a smoke detector or water leak detector to shut down the system.
• Configure a vibration sensor or air conditioner sensor to shut down the system.
• Set actions for alarms from a generator, such as disabling the charger for an undersized generator or
shutdown for a failed generator.
• Configure an ATS (automatic transfer switch) sensor to transfer the system to Bypass mode.
66..99 RReemmoottee EEmmeerrggeennccyy PPoowweerr--ooffff
REPO is used to shut down the UPS from a distance. This feature can be used for shutting down the load and
the UPS by thermal relay, for example in the event of room overtemperature. When REPO is activated, the
UPS shuts down all converters, de-energizes all system relays, trips the UPS battery circuit breaker, and
powers down within 10–15 seconds. Note, however, that the unit continues to have logic power (display is still
active) and is not fully powered down until input power is disconnected from the unit.
Programmable Signal Inputs
To Next Page
Loading...
