Bypass voltage
Bypass input frequency
UPS output voltage (Ph-Ph and Ph-N)
UPS output current per phase
UPS output frequency
UPS output % load
UPS output kVA
UPS output power factor
Battery voltage
Crest factor
Battery current
Battery backup time and remaining service life
Status Indications and Events:
Load on battery
Load on UPS
Load on automatic bypass
Low-battery warning
General alarm
Battery fault
Remaining back-up time during operation on battery power
Bypass source outside tolerances
Additional indications shall provide maintenance assistance
Time-Stamped Historical Events: This function shall time-stamp and store all important
status changes, anomalies and faults and make this information available for automatic or
user-requested consultation.
B. LED Status Indicators: The UPS control panel shall provide three LEDs that signal the
following status conditions:
Green LED: Load protected
Yellow LED: minor fault
Red LED: major fault, load not protected
C. On/Off Switch: The UPS shall provide the ON and OFF buttons to start and stop the
inverter. The switch shall provide a built-in time delay to eliminate the risk of inadvertent
operation (additional confirmation is requested). It is possible to remotely activate the OFF
function via an isolated dry contact to create an emergency power off function, resulting in:
Inverter shutdown
Opening of the automatic bypass
Opening of the input, bypass, output and battery switches/circuit breakers
Opening of the isolated dry contact on the programmable relay card
APC – MGE Galaxy 5000 Specification (60Hz) 9 Effective: June 1, 2008 REV X0 JJG
Parallel Module