Introduction; Indicators; Power And Current Limit - NewMar RM2048HE Installation Manual

1 Principles of Operation
1.1

Introduction

The RM2048HE is a telecommunications grade rectifier with the following features:
High Efficiency

Hot Pluggable

Forced Air Cooled

Thermally Protected

Power Factor Corrected

Wide input AC Voltage

Constant Power Output Limit

Input/Output Voltage and Current Protected

Active Load Sharing

Serial alarm and control interface

Microprocessor controlled

1.2

Indicators

There are 3 LED indicators on the front panel indicate the operational state of the rectifier.
This green LED indicates that mains power is connected to the unit and that the primary stages of the
rectifier are operating.
This LED flashes during power save mode.
This yellow LED indicates a non-Urgent alarm state within the rectifier. This could be caused by the
following:
Rectifier in output power/current limit

Rectifier over temperature

Fan failed

Rectifier soft starting

No communications address (LED is flashing in this state)

Brownout

Postmate open

This red LED indicates an Urgent alarm state within the rectifier. This could be caused by the following:
Rectifier Failed

The AC input voltage is outside the operating range.

Rectifier shut down due to output over voltage or over temperature.

1.3

Power and Current Limit

The rectifier automatically limits its output as load demand reaches it maximum capacity.
Rectifier Installation Manual Page 3 of 10