Summary of Contents for PEC Miniverter
- Page 1 MINIVERTER MANUAL PROCESS ELECTRONICS CORPORATION 100 BRICKYARD ROAD MOUNT HOLLY, NORTH CAROLINA 28120 TELEPHONE (800) 421-9107 FAX (704) 827-9595 SALES@PECRECTIFIER.COM WWW.PECRECTIFIER.COM SOLID STATE CONVERTER...
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Page 2: Table Of Contents
PEC Miniverter DC Power Supply Index Section and Title Page 1. UNPACKING AND STORAGE 2. INSTALLATION 2.1 General 2.2 Access to the Inside of the Converter 2.2.1 Control Component Access . 2.2.2 Power Component Access . 3. INSPECTION . 3.1 A.C. Input Wiring . -
Page 3: Unpacking And Storage
INSTALLATION General The P.E.C. Miniverter power supply (converter ) has been completely inspected and operated under full load prior to shipment. These units should be installed in a clean, dry ventilated location with the front and back of the units at least 6"... -
Page 4: Access To The Inside Of The Converter
Access to the Inside of the Converter Access to components of the Miniverter model power supply can be gained by removing the front and rear panels. 2.2.1 Control Component Access 1. Remove the four screws from the front panel. 2. Lower front panel for access to control components. -
Page 5: Inspection
INSPECTION All connections between the components should be checked because excessive vibration during shipment may have caused some of them to become loose. A.C. Input Wiring PLEASE NOTE: All work described within this section is to be done in accor- dance with national electrical code and any prevailing local electrical code. -
Page 6: Hook Up
The indicating and controlling elements for the remote controlled units are mounted in a Nema 12 enclosure. The enclosure should be mounted close to the operator's normal position. Connections from the converter are made to a terminal strip mounted on a subpanel inside the enclosure. -
Page 7: Operation
OPERATION Starting Operation NOTE: All removed panels must be placed back onto the converter before the unit is started. 1. Make certain that the output adjust control knob is set at zero or minimum position (fully counterclockwise ). 2. Close the main safety switch. NOTE: All units have magnetic starters. - Page 8 For example, with a 100 amp @ 12 volt unit, the output voltage will be held constant -+ 0.12 volts over a range of operation from 10 amp to 100 amp. The voltage will remain constant throughout the operational cycle and will eliminate the costly burning or overplating which can result from widely varying load voltages.
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Page 9: Automatic Voltage With Current Limit Operation Adjustment Procedure
C. Automatic Current Control with Voltage Limiting This control will maintain the converter output current at a value preset by the operator's control knob. A preset value of output current will be held constant within -+ 1% of the converter's full rated current value over a range of 10% to 100% of output voltage under varying load conditions during operation. -
Page 10: Automatic Average Current Density Control With Current Limit Adjustment Procedure
Automatic Average Current Density Control with Current Limit Adjustment Procedure All converters are shipped in the voltage mode of control unless otherwise specified at the time of order. The automatic average current density control must be used with the voltage mode of control for proper operation. -
Page 11: Conversion To Current Mode Of Control
4. Energize the converter. See Section 4.4 entitled Automatic Average Current Density Control with Current Limit Adjustment Procedure for details. 5. Adjust the "output adjust" knob to the desired current level. The converter will hold the desired current level constant for varying load conditions. NOTE: The converter will hold the desired current level for an operating range from 10% to 100% of the converter's full rated output voltage. -
Page 12: Maintenance
MAINTENANCE This unit is designed for a minimum of maintenance. The amount of maintenance required is largely determined by the cleanliness of the plant in which the unit is located. Minor preventative maintenance procedures, performed at regular intervals, will reduce the possibility of component failures to an absolute minimum. -
Page 13: Method Of Checking Diodes Using An Ohmmeter
Method of Checking Diodes Using an Ohmmeter In this method you use an ohmmeter comparable to a Triplett Model 310 meter and proceed as follows: 1. Disconnect the power input to the converter. 2. Set the ohmmeter at x times 10. 3. -
Page 14: Method Of Checking Silicon Controlled Rectifier (Scr)
Method of Checking Silicon Controlled Rectifier (SCR) 1. Disconnect power to the converter. 2. Remove the SCR from the circuit. 3. Identify the SCR terminals. See Figure 9. 4. Build a test fixture. See Figure 10. 5. Place the red lead and black lead across the SCR. See Figure 10. No light should register. -
Page 15: Troubleshooting Chart
Troubleshooting Chart Trouble Probable Causes Remedy Unit will not energize when push- 1. Main fuses blown 1. Replace fuse button is pressed 2. Control Circuit fuse blown 2. Replace fuse 3. Loose power or control wiring 3. Tighten all loose connections 4. - Page 16 - 16 -...