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OM-2065 / Operation and Maintenance Manual
90SB51 / Spec. 7015-3 / Frequency Converter
(6) OUTPUT VOLTMETER
This meter (7) , in conjunction with the VOLTAGE SELECTOR SWITCH, (7) measures output
voltage on all three phases, with an accuracy of +/-2%. Two test jacks (8) are provided next to
the voltmeter for measuring voltage with a more accurate meter if that is required during service.
(7) VOLTAGE SELECTOR SWITCH
This switch (6) permits the operator to check voltage output in each of the three phases, A, B, or
C, by turning the switch and observing the voltmeter.
(8) HOURMETER
The hourmeter (1) measures and records converter running time, and will record up to 9999.9
hours on five revolving drums. The hourmeter operates whenever voltage is available at the
output terminals of the converter.
(9) KILOWATT-HOUR METER
The kilowatt-hour meter (2) , as its name implies, measures total power usage from the
converter. The kilowatt-hour meter operates only when the converter is delivering power to a
load.
1. Hour meter
2. Kilowatt-hour meter
3. Input power indicating light (green)
4. Start button
5. Stop/reset button
Chapter 1-1
Page 8
6. Meter Selector switch
7. Output voltage meter
8. Test jacks
9. Output power indicating light (green)
10. Fault indicating light (red)
Control Panel
Figure 6
Nov 01/90
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