FOXBORO IPM2-P0904HA modular

IPM2-P0904HA
Push the Start Button. Advance the VOLTAGE CONTROL (3) one turn clockwise
and slowly advance the CURRENT CONTROL (6). The DC AMMETER (8) will
deflect smoothly from zero to the rated current of the supply as this control is
advanced clockwise. The CURRENT INDICATOR (7) will be lit.
i. Return all controls completely counterclockwise and turn unit off. Disconnect
output shorting bar.
3.1.1 OVP OPERATION
If supply is equipped with an overvoltage crowbar, the front panel will contain
OVERVOLTAGE ADJUSTMENT (9). This potentiometer may be adjusted
through an access hole in the front panel.
NOTE: All overvoltage circuitry has been properly adjusted to their respective
unit before leaving the factory.
For trip levels less than the maximum output voltage or to check the overvoltage
circuitry simply:
A. Set the potentiometer fully clockwise
B. Adjust the power supply output voltage to the desired trip level.
C. Slowly adjust the potentiometer counterclockwise until OVP trips turning off
the set.
Once fired, the SCRs remain on until the anode voltage is removed (decreased
below its “on” level) or until anode current falls below a minimum “holding”
current. The overvoltage range is from 50% to 100% of the maximum output
voltage of the unit.
If any of the above events does not occur, the supply is defective and must not
be operated. Depending on circumstances either warranty service or
troubleshooting as described elsewhere in this manual is required.