AEC IST7 20kVA, User Manual

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AEC UPS IST7 10-30 kVA
User Manual 2 Overview
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The inverter also can be started by ON button on the panel, but generally, it is not suggested to operate
like this.
2.3.7 Emergency Power Off (EPO)
Do not perform the EPO operation unless emergency.
Press the EPO button on the panel or external EPO button of system, the UPS will turn to emergency
stop status. At this time, the touch screen shows EPO protection, system red AC/DC and DC/AC
indicators on and the buzzer long beeps.
After pressing the EPO button, the UPS is with no output, the power supply for load is interrupted.
When the system stay in maintenance bypass status, after pressing EPO button, the UPS still has
output.
2.3.8 Emergency Power Off Recovery
Ensure that the dry contact of monitor card, which connected to the external EPO switch, is not in emergency power
off status.
Disconnect the system input, output and battery breaker, until all system indicators are off, system power down
completely.
Close the mains input breaker (POWER), bypass breaker (BYPASS), battery breaker, system will be started again,
and EPO removes.