MGE UPS Systems 100 - Manual (Page 23)

3.0 Scope
This section contains preventive maintenance for the Topaz 100 units, and troubleshooting to assist the User with
any communication and configuration connections.
WARNING: HIGH VOLTAGE, ALL POWER MUST BE OFF PRIOR TO ANY
MAINTENANCE. ONLY QUALIFIED ELECTRICIANS SHOULD
PERFORM MAINTENANCE OR TROUBLE SHOOTING.
3.1 Preventive Maintenance
To ensure longer component life and trouble free operation, minor preventive maintenance procedures should be
performed at regular intervals, for example once every year. More frequent inspection intervals would be needed for
more severe operation conditions.
At each service inspection, remove any dust, dirt or foreign particles. A slight tug should be used to test if there is
any loose electrical connections.
3.2 Troubleshooting
Corrective maintenance might have to be performed on any of the three main component types in the Topaz 100
Ultra Isolator: Transformer, Filter Card or Input Fuses.
1. Transformers: The transformer is designed with a considerable safety margin. Normally, the only malfunction
that can take place is a short to the core. It can be checked easily with an ohmmeter.
2. Filter Card: MOV’s can fail open or capacitors can be defective in the open or shorted mode and checked easily
with an ohmmeter. Visual inspection may also allow detection of failed components.
3. Input Fuse: The units input fuse can clear (open) due to a fault or overload condition at the output of the unit or
in the rare case of a transformer failure. A fuse is easily replaced via the flush mounted fuse holder located on
the back of the enclosure. Before replacing a fuse, the load should be removed or disconnected from the unit
and a visual inspection inside the unit should take place.
Installation and User Manual
Maintenance and Troubleshooting
M a i n t e n a n c e a n d Tr o u b l e s h o o t i n g
page 3 —1