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6.16 Protection functions
6.16.1 Setting motor electronic thermal protection
: Motor electronic thermal protection level 1
173 : Motor electronic thermal protection level 2
: Motor 150% overload detection time
: Electronic thermal memory
• Function
This parameter allows selection of the appropriate electronic thermal protection characteristics
according to the particular rating and characteristics of the motor.
Parameter setting
Title
f173
f632
For more details, see 3.5.
Note 1: The 100% standard value is the rated output current indicated on the nameplate.
Note 2: is a parameter for manufacturer settings. Do not change the parameters.
6.16.2 Setting of stall prevention level
: Stall prevention level 1
: Stall prevention level 2
• Do not set the stall prevention level ( ) extremely low.
If the stall prevention level parameter ( ) is set at or below the no-load current of the motor, the
stall preventive function will be always active and increase the frequency when it judges that
Prohibited
regenerative braking is taking place.
Do not set the stall prevention level parameter ( ) below 30% under normal use conditions.
• Function
This parameter adjusts the output frequency by activating a current stall prevention function against a
current exceeding the -specified level.
Function
Motor electronic thermal protection
level 1
Motor electronic thermal protection
level 2
Motor 150%-overload detection time
Electrical thermal memory
Caution
F-45
Adjustment range
10-100 (%) / (A)
10-100 (%) / (A)
10-2400 (s)
0: None, 1: Available
E6581595
Default setting
100
6
100
300
0
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