GE Industrial Solutions AF-600 FP High Power Unit Sizes 6x User Manual
Page 74
6.2 Static Test Procedures
All static tests should be made with a meter capable of testing diodes. Use a digital volt/ohm meter (VOM) set on the diode scale or an analog ohmmeter set on
Rx100 scale. Before making any checks disconnect all input, motor and brake resistor connections.
NB!
Perform the static test procedures described in this section in the order presented for best troubleshooting results.
Diode Drop
A diode drop reading will vary depending on the model of ohmmeter. Whatever the ohmmeter displays as a typical forward bias diode is defined as a "diode drop"
in these procedures. With a typical DVM, the voltage drop across most components will be around 0.300 to 0.500. The opposite reading is referred to as infinity
and most DMVs will display the value OL for overload.
High Power Service Manual for Unit Sizes 6x
73
6
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