Unipower Guardian Access 3U User Manual

Page 46
POWERING TECHNOLOGY
Manual No. MS0027-MAN rev. 4
guardian_access_3u_ms27-man-rev4-0817.indd
Fault Possible Cause Suggestion/Solution
Module Failure
Faulty module.
AC OFF on a single rectier (if more
than one rectier is installed).
Rectier current sharing fault.
Low DC output voltage, overvoltage
shutdown, module fan failure, module
is overheated.
Check if module sends alarm ag.
Verify the AC voltage to the failed
module.
Re-insert the faulty module, wait for
30 seconds
Replace the faulty module.
Urgent Module
Failure
More than one rectier is reporting
Module failure.
See Module failure alarm.
High Load
Faulty module .
Rectier load current exceeds the set
High load limit [%].
Compare the load current with
installed rectier capacity.
Add a rectier or reduce load.
Verify the High load limit setting.
Replace the faulty module.
Overvoltage
Shutdown
Faulty module Re-insert the module, wait for 5
minutes.
Replace the faulty module.
Load/Battery
Disconnection
System voltage drops below the set
limit.
System shutdown.
Check the battery condition.
Check the AC mains connection.
Check the input breaker.
Check the rectier modules.

Unipower Guardian Access 3U Specifications

General

Brand	Unipower
Model	Guardian Access 3U
Category	Power Supply
Language	English