1.5 Predictive Maintenance Function
C1-14
ME0384-4A
Chapter 1 Maintenance and Inspection
1.5 Predictive Maintenance Function
Fan
The fan rotation speed of the fan unit attached to the driver unit is monitored.
A message level alarm is generated (alarm code 04C "Fan rotation speed drop") when the fan
rotation speed decreases 30%. When an alarm is generated, although the fan will not have
stopped completely, we recommend replacing it as soon as possible.
Note that if the fan rotation speed drops 50%, an operation cancel level alarm (alarm code 0D6
"Fan error detection") is generated, and the actuator stops. Replace the fan and reset the alarm
to resume operation.
Refer to the following for the replacement method.
● 24V Driver Unit
Refer to "Specifications Section Chapter 4, 4.4 Part Names/Functions and External Dimensions
[How to Replace Fan Unit]".
● 200V Driver Unit
Refer to "Specifications Section Chapter 5, 5.4 Part Names/Functions and External Dimensions
[How to Replace Fan Unit for 200V Driver Unit]".
● 200V Power Supply Unit
Refer to "Specifications Section Chapter 5, 5.4 Part Names/Functions and External Dimensions
[How to Replace Fan Unit]".
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