Unitek Peco PHASEMASTER 6, Руководство пользователя

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PHASEMASTER™ 6 DIRECT ENERGY WELDING CONTROL
990-083 4-1
CHAPTER 4
MAINTENANCE
Modification and Calibration
Unless you are a skilled technician, we suggest you telephone the Unitek Peco Repair Department at the
telephone number shown in the Foreword of this manua l for advice before attempting calibration and/or
modification.
WARNING: Contact with voltages present in this power supply may cause serious or fatal injuries.
Cover Removal
It will be necessary to remove the outside cover to perform calibration or modifications. Use the
following procedure:
1 Set the front panel POWER switch to OFF.
2 Disconnect the PM6 from its power source.
3 Remove the top two screws on each side of the cover.
4 Loosen the bottom two screws on each side and lift the cover straight upwards.
Line Voltage Modification
The PM6 may be re-connected for operation at line voltages of 100, 115, 208 or 230 VAC, 50/60 Hz.
The PM6/460 may be re-connected for operation at line voltages of 220, 380, 415, 440, or 480 VAC,
50/60 Hz. In order to operate the PM6, PM6/208 or the PM6/115 at 460 volts, a factory modification is
necessary. For all line voltage changes the following steps must be taken:
a Change jumper position on control transformer (figure 4-1).
b Install correct circuit breaker. See Appendix A, Section I.
c Provide correct line cord plug.
d Change all labels and tags to indicate the correct line voltage.