Cooling Fan Operation Selection (Pr. 76 ) - Mitsubishi Electric FR-S520E Series Instruction Manual

Do not reset the inverter with the start signal on.
Otherwise, the motor will start instantly after resetting, leading to
potentially hazardous conditions.
2.10.6 Cooling fan operation selection (Pr. 76
You can control the operation of the cooling fan built in the inverter (whether
there is a cooling fan or not depends on the model.).
Parameter Name
Cooling fan
76 operation
selection
<Setting>
Setting
0 Operated at power on (independent of whether the inverter is running or at a stop).
Cooling fan ON/OFF control valid
Always on during inverter operation
During stop (reset or error), the inverter status is monitored and the fan is
1
switched on/off according to the temperature.
•
Heatsink temperature is less than 40
•
Heatsink temperature is not less than 40
REMARKS
In either of the following cases, fan operation is regarded as faulty,
operation panel, and the minor fault (LF) signal is output. Use any of Pr. 64, Pr. 65 (output
terminal function selection) to allocate the terminal used to output the LF signal.*
•Pr. 76 = "0"
When the fan comes to a stop with power on.
•Pr. 76 = "1"
When the inverter is running and the fan stops during fan ON command.
CAUTION
* When the terminal assignment is changed using Pr. 64, Pr. 65, the other
functions may be affected. Confirm the functions of the corresponding
terminals before making settings.
CAUTION
Factory Setting
Setting Range
1 0, 1
117
Operation selection function
Remarks
0: Operation is performed with
power on.
1: Cooling fan ON/OFF control
Description
o
C ..........................Cooling fan off
o
C ....................Cooling fan on
)
Setting is
enabled when
Pr. 30 = "1"
is shown on the
2