Schneider Electric ALTIVAR 58 TRX Guía de instalación Pagina 99

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© 1998–2003 Schneider Electric All Rights Reserved
VVDED397047USR6/03 Chapter 3—Diagnostics and Troubleshooting
06/2003 Procedure 1: Bus Voltage Measurement
99
3. Read the model number of the drive controller from the nameplate
and identify the corresponding (+) and (–) measurement points
from Table 26 and Figure 25.
4. Open the door or cover of the drive controller.
5. Set the voltmeter to the 1000 Vdc scale. Measure the voltage
between the (+) and (–) measurement points identified in step 3.
Verify that the DC bus voltage has discharged below 45 V before
servicing the drive controller.
6. If the DC bus capacitors will not discharge below 45 V, contact
your local Square D representative. Do not operate the drive
controller.
7. Replace all of the covers after servicing the drive controller.
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