PCM500 Series

KEY FEATURES

• One Mounting Position High (1.75")
• 19- or 23-Inch Rack Mounting
• Positive or Negative Polarity Plant
• Reverse Polarity Protected
• 48 or 24 VDC Versions
• Controls & Monitors up to 16 Rectifiers
• Centralized Plant Float Voltage Adjust
• Centralized Plant Equalize Voltage Adjust Option
• Battery Temp. Compensation Option
• Optional Digital Voltmeter and Ammeter Panel
• 8 LED Alarm Indicators
• 8 Form C Relay Contact Alarm Outputs
• Over & Under Battery Voltage Alarms
• Battery Voltage & Current Test Points
• Compatible with Mercury & Vanguard Rectifiers
• Easy Wire Connections on Rear
• Alarm Enable on Back Panel

DESCRIPTION

Unipower Telecom's PCM500 Series Power Control and Monitor System (PCMS) is a one mounting position high (1.75 inches) 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.

A front panel yellow LED indicates that the controller is in the optional equalize voltage mode. Front panel red LEDs give the following alarms: Rectifier minor fail alarm, indicating a single rectifier failure; rectifier major fail alarm, indicating two or more rectifier failures; AC input failure on any rectifier; failure on any fuse or circuit breaker; failure on one or both low voltage disconnets; battery overvoltage; and battery undervoltage. These alarms all have isolated Form C relay contact ouputs.

The PCM500 is available in either 48 or 24 VDC versions and will operate with a positive or negative polarity plant. It comes with brackets that permit mounting in either a 19- or 23-inch relay rack and 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. The front panel has voltage adjustment potentiometers for float voltage, equalize voltage (option), battery overvoltage and undervoltage, and temperature compensation set (option). A front panel switch puts the PCMS in either float or equalize voltage mode. A front panel green/red LED indicates the controller is operating or has failed. The PCM500 mates with Unipower Telecom's rectifiers and shelves.

INPUTS

• Voltage¹: 48VDC or 24VDC Nominal
• Polarity: Positive or Negative Plant
• Monitoring Inputs
  • Low Voltage Disconnects 1 & 2
  • Fuse Alarms 1 through 5
  • Battery Voltage & Current Metering
  • Temperature Compensation
  • Battery Sense
  • Battery Supply

OUTPUTS

• Control Outputs
  • Current Share
  • Remote Adjust
• Alarms (Form C Relay Contacts)
  • Equalize Failure
  • Minor Rectifier Failure
  • Major Rectifier Failure
  • AC Failure
  • Fuse or Breaker Failure
  • Low Voltage Disconnect
  • Battery Overvoltage
  • Battery Undervoltage

SAFETY STANDARDS: UL1950, CSA22.2 #950, EN60-950

ENVIRONMENTAL

• Operating Temp. Range: 0°C to +50°C
• Storage Temp. Range: -40°C to +85°C
• Humidity: 0% to 95%, Non-Condensing

PHYSICAL

• Case Material: Steel
• Finish: Powder Coat Gray
• Dimensions: 1.75"H x 19.00"W x 9.00"D (44.5mm x 483mm x 229mm)
• Rack Mounting Width: 19 or 23 inches

NOTES:

1. Model must be specified for operating voltage.