Mitsubishi Electric PURY-P72 Service Handbook page 220
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Also See for PURY-P72:
- Service handbook (412 pages) ,
- Service handbook (404 pages) ,
- Service handbook (200 pages)
Table of Contents
[ IX Troubleshooting ]
4102
1. Error Code
4102
(TKMU-A)
Open phase
2. Error definition and error detection method
An open phase of the power supply was detected at power on.
The open phase of the power supply may not always be detected if a power voltage from another circuit is applied.
3. Cause, check method and remedy
Cause
(1)
Power supply problem
Open phase voltage of the power supply
Power supply voltage drop
(2)
Noise filter problem
Coil problem
Circuit board failure
(3)
Wiring failure
(4)
Blown fuse
(5)
Control board failure
HWE1116D
Check method and remedy
Check the input voltage to the power supply terminal block TB1.
Check the coil connections.
Check for coil burnout.
Confirm that the voltage at the CN001 connector is 188 V or
above.
Check Noise filter CN110, relay connector CNFG2, and control
board CN110 connector for damage to wire or for incomplete
connection.
Check Noise filter CN012 and control board CNAC connector.
Check F01 on the control board, F4, and F5 for a blown fuse.
->If a blown fuse is found, check for a short-circuiting or earth fault
of the actuator.
Replace the control board if none of the above is causing the
problem.
- 211 -
GB
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Troubleshooting
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