STEP ET Series - Page 161

Chapter 9 Maintenance
ET/EP/EH Series Intelligent Flexible Driver Manual
- 151 -
Inspection part
Inspection item
Method of inspection
Judgment criteria
Con
trol
circ
uit
Connecti
on
plug-ins
Whether there is dust and foreign object attached
on the double row connection plug-in between
the control panel and the main circuit
Visual inspection
No abnormalities
Control
panel
1) Whether there is discoloration and odor on
the control circuit board
2) Whether the circuit board is cracked,
damaged or deformed
1) Visual inspection,
sense of smell
2) Visual inspection
No abnormalities