Alpha Power Supply Module Test: Regular Voltage
ALPHA POWER SUPPLY MODULE TEST: REGULAR VOLTAGE
TO MAKE AN ALPHA POWER SUPPLY MODULE (REGULAR VOLTAGE) COME UP WITH “- -“ ON THE DISPLAY AND 300 VOLTS DC OUTPUT ACROSS THE BUSS:
• Kill power, let the charge lights go out, then check for a DIRECT SHORT between the top and bottom buss bars.
• If you have a DIRECT SHORT, disconnect modules until the short goes away.
• If you do not have a DIRECT SHORT, follow the steps below
• Be sure to measure the leg-to-leg AND leg-to -ground voltage into the power supply module.
1.) Supply 3- phase input into L1, L2 and L3 bottom of power supply (200-220V AC leg-to-leg & 100-110V AC leg-to-ground).
2.) Supply 200 volts input into CX1A connector.
3.) Jumper out the top and bottom pins of the three pins on the CX3/MCC cable coming into the PSM.
4.) Jumper out the top two pins of the three pins on the CX4/ESP E-Stop connector on the PSM.
5.) Have all screws on the DC buss installed and tight.
WITH THESE THINGS DONE YOU SHOULD HAVE “- -“ ON THE DISPLAY AND 300 VOLTS DC ACROSS THE BUSS. IF YOU DO NOT, THEN REPLACE POWER SUPPLY.