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Introduction – American Power Conversion 480kW400V User Manual

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Introduction

990-4058

User Guide APC Silcon 480kW 400V UPS

3

1.0 Introduction

This UPS system is designed to offer reliable and problem-free power supply for several years.
The system requires only a minimum of maintenance, but we recommend you follow the
maintenance guidelines described in section 6.0 Maintenance & Testing.

1.1

Display Unit

The display unit (located on the front of the UPS) is the link between the user and the UPS and
consists of a display, an alarm LED indicator and a keyboard. The display reads parameters,
measured values and alarm messages. Alarms and the pressing of keys will activate a back
light which is set to switch off automatically after 5 minutes of inactivity.

By pressing

and

simultaneously you increase the back light contrast. The pressing of


and

simultaneously decreases the contrast.

The LED alarm is linked to an acoustic signal indicating incorrect operation. Alarms will
change the LED light from green to red. Use keyboard to program operating parameters and
to display parameters / alarm messages.

NOTICE!

Display accuracy is ±2%, ±1digit.

LCD-display with
back light

Alarm LED
Green: OK
Red: Alarm

Keyboard