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PLC 2450 Operating Manual

Power supply/battery charger
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Main screen display
• DC LD Volts is the voltage applied to the load
• CH LD AMPS is the current the load is using
• BAT CH AMPS is the current used to charge the batteries
• BAT LD AMPS is the current from the batteries to the load
• The flashing * is the heatbeat indicating program is running
STATUS pushbutton will move to the alarm and relay status screen.
RESET pushbutton will reset alarms when fault condition clears when pushed from the
main screen or the status screen
PLC-2450 interface guide

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Summary of Contents for PLC 2450

  • Page 1 PLC-2450 interface guide Main screen display • DC LD Volts is the voltage applied to the load • CH LD AMPS is the current the load is using • BAT CH AMPS is the current used to charge the batteries •...

  • Page 2: Status Screen

    STATUS SCREEN Alarm and Status for • AC – AC circuit feeding the charger either OK or FAIL • DC – DC volts is above the Low Voltage Setpoint either OK or FAIL • CHRG – Charger is running and carrying the load either OK or FAIL •...
  • Page 3 DC Low Volts SetPT SCREEN To select the DC Low Volts setpoint, press the yellow STATUS pushbutton to cycle through the preset voltages. The * indicates the selected voltage. When the desired voltage setpoint is selected, press the green RESET pushbutton to store the setting to eeprom and return to the MAIN screen.
  • Page 4 • Provides N+1 redundancy • Expand output power by adding power Modules • Up to 50 amps continuous power BATTERY BACK-UP / CHARGING FUNCTION...
  • Page 5 The unit is designed for the following applications : 1. Critical power supply application requiring uninterrupted battery back-up supply. 2. Telecommunication, Audio Display, GPS receiving stations, PLC or RTU installation. DESIGN AND PRINCIPLE OF OPERATION The unit is designed using advanced switch mode technology and load share circuitry for high reliability, high efficiency and minimum size and weight.
  • Page 6 Figure 1.
  • Page 7 PROTECTIONS SHORT CIRCUIT PROTECTION : In the event of a short circuit, the PWM controller will be shut down and the output will drop to near 0 V. The unit will automatically reset once the short circuit condition is removed. CURRENT LIMITING : The unit will enter this mode when the load tries to draw more than the limiting values of currents as shown in the specifi- cations.

  • Page 8: Installation And Removal Of Power Supply Modules

    FAN FAILURE WARNING INDICATOR AND ALARM : If forced air cooling is stopped due to failure of any one or both the fans, the TEMP FAULT will report FAIL and an audible alarm buzzer will be activated. The unit is required to be switched off immediately as loss of forced air cooling may result in major damage to the unit.

  • Page 9: Specifications

    SPECIFICATIONS NO. OF MODULES INPUT VOLTAGE RANGE 105 TO 125 V AC, 60 HZ OUTPUT VOLTAGE 27.6 V DC OUTPUT REGULATION OUTPUT CURRENT CONTINUOUS 50 A SURGE 55 A OUTPUT CURRENT LIMIT 60 A OUTPUT RIPPLE 60 mV OUTPUT NOISE UPTO 600 mV COOLING FORCED AIR, 2 FANS...