English
tester MS012 COM
18
7. Rotate adjustment knobs “EL LOAD” to change the value in the range from 10 to 100%. The
value in box “CURRENT, A” varies in proportion with it.
8. The measured DFM signal will be displayed in boxes “DFM, Hz” and “DFM, %”.
8.1 If these values are displayed as follows: DFM, Hz – “NA”, DFM, % – “HI”, it means either the
feedback channel is inoperable o
r one of those terminals FR, DFM, М, LI is mi
ssing in the voltage
regulator.
9. Failure to perform as described in article 4* - 8 of the Instruction signals the voltage regulator
malfunction.
10. Press BACK to exit the test mode. Disconnect the cable clips from the voltage regulator.
3.3.3 Diagnostics of voltage regulators of C JAPAN type
1. Connect the voltage regulator to the tester as described in article 3.2 of the actual Instruction.
2. In the main menu (Fig.4) select the nominal voltage of the tested voltage regulator: 12V.
3. In the menu for selection a voltage regulator by type (Fig.6), select the voltage regulator
terminal and press TEST. The tester will enter the test mode.
4. Rotate adjustment knob “STATOR” to set the stator speed “STATOR RPM” at 0 – red indication
of the control lamp must be on. Then set the stator speed at over 1000 rpm – the control lamp
indication must turn white now. The displayed voltage value “VOLTAGE, V” must set in the range
of 12V to 12,7V.
5. Rotate adjustment knob EL LOAD to set the value at 100%.
6. Press OFF, the value in box “VOLTAGE, V” must set in the range of 14-14,4V. Button ON will
appear on the screen.
7. Rotate adjustment knob EL LOAD to change the value in the range from 10 to 100%. The value
in box “CURRENT, A” must vary in proportion with it.
8. Measured values of DFM signal must be displayed in boxes “DFM, Hz” and “DFM, %”.
8.1 If these values are displayed as follows: DFM, Hz – “NA”, DFM, % – “HI”, it means either the
feedback channel is inoperable or
one of those terminals FR, DFM, М, LI is missing in the voltage
regulator.
9. Failure to perform as described in articles 4-8 of the actual Operation Instruction signals the
voltage regulator malfunction.
10. Press BACK to exit the test mode. Disconnect the cable clips from the voltage regulator.
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