1
PCM500 SERIES
OPERATING MANUAL
1.0
INTRODUCTION
1.1
This Operating Manual should be read through carefully before installing and
operating the PCM500 Series.
1.2
The PCM500 is a basic control and monitoring system for DC power plants.
It controls up to 16 rectifiers in up to 4 shelves, precisely setting the float
voltage and equalize voltage (optional) on all rectifiers simultaneously. It
monitors the battery voltage and current by means of front panel test points
or optionally by a front panel digital voltmeter and ammeter. See Figure 1.
1.3
Front panel LEDs indicate status and alarm conditions of the monitored
functions. Front panel potentiometers permit easy adjustment of the various
control voltages. Form C relays also indicate status and alarms.
1.4
The PCM500 is only one mounting position high (1.75 inches) to minimize
rack space and comes with brackets that permit mounting in either a 19- or
23-inch relay rack. It can be mounted from the front of the rack with offsets
every quarter-inch from front to back to align with existing rack-mounted
equipment.
1.5
The PCM500 can be ordered configured for either 24 or 48VDC, either
positive or negative plant. It is reverse polarity protected.
2.0
FEATURES AND OPTIONS
2.1
Features
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Low Profile: One Mounting Position High: (1.75 Inches)
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19- or 23-inch Rack Mounting
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48 or 24VDC Versions
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Positive or Negative Polarity Plant
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Reverse Polarity Protected
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Controls & Monitors Up to 16 Rectifiers in Up to 4 Shelves
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Centralized Plant Float Voltage Adjust
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Eight LED Alarm Indicators
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Eight Form C Relay Contact Alarm Outputs
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Over & Under Battery Voltage Alarms
UNIPOWER TELECOM POWER CONTROL & MONITOR SYSTEM
PCM500 SERIES
