How do I perform a Static Test Check on an Altivar 320?
Issue:
Perform a Static Test on an Altivar ATV320
Product Line:
ATV320
Environment:
ATV320 all series
Cause:
Test needed to check for short.
Resolution:
Checking The Input and Output Diode Bridges
This test is done using a digital multi-meter in diode test mode to check that the transistors and diodes are not short-circuited.
ALL TESTS ARE TO BE PERFORMED WITH ALL SOURCES OF POWER REMOVED FROM THE DRIVE
Drive uses all diodes on the Input and Output Diode Bridge.
- Instrument
- Use Digit-Meter with a diode scale
- Measurement
- Locate PA+ and PC- input on drive power terminals (should be close to your power connection terminals)
- Set meter to diode scale
- To measure Input diodes
- Place black on positive bus (PA+) and red on L1
- Get readings and then move to L2, and then L3
- When done swap red and black probes, and measure again between (PA+) to L1...L3
- Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)
- To measure Output diodes
- Place black on positive bus (PA+) and red on T1
- Get readings and then move to T2 and then T3
- When done swap red and black probes, and measure again between (PA+) to T1...T3
- Readings should be OL in one direction and a low voltage reading the other way (Example 0.3v)
To confirm the terminals, check the ATV320 Installation Manual (link below), from page 97 to 114
https://www.se.com/mx/es/download/document/NVE41289/
Power terminals diagram are attached in the file.