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7) Troubleshooting CH23, CH28
Display
Title
code
DC Link
23
Low voltage.
DC Link
28
High voltage
Cause of error
• DC link volt. is
140Vdc .
• DC link volt. is
420Vdc .
V
Cycle Troubleshooting Guide
Check point & Normal condition
• Check the power source.
• Check the components.
• Check the power source.
• Check the components.
Check Point
1. Check the power source.
2. Check the components
(B/Diode, Reactor, PSC Parts )
Service Manual 57
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Table of Contents
Troubleshooting
