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User Manual - Rev AJ
California Instruments
6.4.5 Three Phase Mode
As indicated earlier, for 3-Phase power system, repeat the preceding steps for the Phase B an
C outputs. The order in which the outputs for each phase are calibrated is not important.
Press the PHASE key to se
d
lect each output to be calibrated. Monitor the output of the
respective phase by moving the HI input of the Digital Multimeter. The LO input should remain
he sense connector.
ave
6.4.6 P
connected to the common LO of t
For the MX45-3Pi operating in single-phase mode, the output voltage calibration does not h
be repeated in single phase mode as the same coefficients for phase A are used in either phase
mode.
hase Angle Calibration
Output phase angle calibration is required only on MX Series models capable of three-phase
mode operation. A phase meter is required to perform this calibration.
This calibration can be done in either high or low voltage range as long as the maximum input
voltage of the phase meter input is not exceeded. Select AC mode, thee-phase mode, 120Vac.
60 Hz. Program all three-phase outputs to the same voltage.
For best results, the output of all amplifiers should be loaded to at least 80% of full scale voltage
current on all phases at the same time. This requires a three-phase load. If no such load is
available, perform this calibration with no load.
Proceed as follows:
1. Program AC mode, 3 phase, low voltage range, 120Vac, 50 or 60 Hz. Close output
r between phase A and B outputs.
relay.
2. Select the OUTPUT CAL screen.
3. Connect phase mete
4. Use the PHASE key to select phase B in the upper right corner of the CAL screen.
5. Close output relay and measure the phase angle between phase A and Phase B.
6. Adjust PHASE OFST cal coefficient up or down and press ENTER key until phase B
offset is 240° ± 0.5° or better.
7. Connect phase meter between phase A and C outputs.
8. Use PHASE key to select phase C in the upper right corner of the CAL screen.
9. Adjust PHASE OFST cal coefficient up or down and press ENTER key until phase C
offset is 120° ± 0.5° or better.
MX Series
167
Содержание MX30-1
Страница 4: ...User Manual Rev AJ California Instruments 4 MX Series ...
Страница 33: ...User Manual Rev AJ California Instruments MX Series 33 ilter option schematic Figure 2 12 MX output f ...
Страница 34: ...User Manual Rev AJ California Instruments Figure 2 13 MX45 Output Noise 10 KHz 1 MHz 34 MX Series ...
Страница 50: ...User Manual Rev AJ California Instruments Figure 3 11 MX135 or MX135 MB Output Wiring Rear view 50 MX Series ...
Страница 147: ...User Manual Rev AJ California Instruments Output Status Available on top assembly 7003 427 only MX Series 147 ...
Страница 148: ...User Manual Rev AJ 148 California Instruments MX Series Figure 5 2 MX Series Detailed Block Diagram ...
Страница 149: ...User Manual Rev AJ MX Series California Instruments 149 Figure 5 3 Power Module Detailed Block Diagram ...
Страница 195: ...User Manual Rev AJ California Instruments Figure 9 4 Voltage Modulation MX Series 195 ...