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DRY CONTACT AND EMERGENCY POWER OFF
1
RELAY OUTPUT
Relay Output Connector
Convert UPS signals into real potential-free Dry Contacts for industrial control.
This UPS offers users the solution for UPS status monitoring via output relays.
UPS status which can be monitored by dry contact is listed below,
UPS Status
I/P Power Fail
Battery Low
Summary Alarm
UPS On Bypass
UPS Fail*
*Default setting of dry relay contact is UPS Fail (Normally Open).
EPO (Emergency power off):
When the emergency occurs, such as the failure of load, the UPS can cut off the output at
once by operating the EPO port manually.
Normally Open Contacts
Insert the wires or EPO connector pin to contact the EPO terminal block.
Secure the wires by tightening the screws.
If the contacts are closed, the UPS will turn OFF and power will be removed from the load.
UPS SYSTEM STARTUP
After completing the hardware installation of the UPS, you are now ready to connect the UPS
and connect your equipment.
To start the UPS:
1 . Verify that the UPS input cable or terminal blocks are connected to AC source.
2 . The UPS transfer to Standby mode fans turn on.
3 . Press the ON/OFF button on the UPS front panel for at least 3 seconds, then press ENTER
button to turn on the UPS.
4 . The UPS is operating in Line Mode if Input power is qualification and powering the output.
(When enabled cold start function, the UPS will operating in battery mode at beginning.)
USING THE UPS SYSTEM
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3
4
5
EPO
UPS detects utility failure.
Battery capacity is lower than threshold.
UPS exits alarms due to Inverter Fault, Output Short, Over Temperature,
Overload, Battery Overcharge, Low Battery, Wiring Fault, etc.
UPS is operating in bypass mode.
UPS has malfunctioned due to Inverter Fault, DC Power Fault, Over
Temperature, etc.
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2
3
4
5
UPS Conditions
21
RELAY OUTPUT
EPO
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