Selecting Cooling Fan Operation - Hitachi WJ Series User Manual

Chapter 9
9.10.6

Selecting Cooling Fan Operation

 How to always keep running the inverter cooling fan?
Q
 How to operate the cooling fan only when the inverter is running?
 How to stop the noise from the cooling fan when the inverter is stopped?
 How to operate the cooling fan only when heat is generated from the inverter?
 Any of the following cooling fan operations can be selected by setting "Cooling fan control
A
method selection [b092]".
- Always operate the cooling fan.
- The cooling fan operates only when the inverter is running.
- The cooling fan operates when the cooling fin temperature reaches approximately 40°C or
higher.
 When an instantaneous power failure or power interruption occurs when the cooling fan is
!
running, the cooling fan temporarily stops and automatically resume operation after power is
restored.
 For details on life assessment of the cooling fan, "Cooling-fan life warning [WAF]" output signal,
and cumulated cooling fan operating hours, refer to "9.11.8 Outputting a Warning for Cooling
Fan Life", "10.3.3 Monitor the Results of Lifetime Diagnosis", and "16.2.6 Life Warning Output".
Code
Cooling fan control
[b092]
method selection
Item
Always operates
Operates when the inverter is in operation:
When the inverter is in operation, the cooling fan operates
automatically. It also operates for 3 minutes after the
inverter operation is stopped.
However, when the cooling fin temperature is still above
50°C after 3 minutes have passed, the cooling fan
continues to operate until the temperature drops below
50°C and stops after another 3 minutes.
* Even when the operation is stopped, the cooling fan starts
operating if the cooling fin temperature exceeds 60°C.
Cooling fin temperature-dependent:
The cooling fan operates when the inverter cooling fin
temperature exceeds approximately 40°C.
The cooling fan stops when the cooling fin temperature
remains equal to or below 40°C for 3 minutes.
9-10-6
Inverter Functions
Description Data
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