YASKAWA CIMR-ACA4011 Instruction Manual page 213

Setting Motor Overload Protection Characteristics
Set the overload protection function in L1-01 according to the applicable motor.
The induction motor's cooling abilities differ according to the speed control range. Consequently, be sure to
select the electronic thermal protection characteristics to match the applicable motor's tolerance load charac-
teristics.
The following table shows the motor type and tolerance load characteristics.
L1-01
Set
Value
1
2
3
-52
6
Motor Type Tolerance Load Characteristics
Short time 60 s.
General-purpose
motor (standard
motor)
Continuous
Rotation speed (%)
Short time 60
Inverter motor
(constant torque)
(1:10)
Continuous
Short time 60 s.
Vector motor
Continuous
(1:100)
Cooling Ability
Rated rotation speed
= 100% speed
Use this motor for
operations using a
commercial power
supply. This motor
construction yields
Frame best cooling effect
number
Max.
when operating at 50/
Frame number Max. speed
speed
of 160 MJ to 160 LJ min.
of 200
60 Hz.
LJ min.
Frame number Max.
speed of 132 MJ
Rated rotation speed
= 100% speed
This motor yields a
cooling effect even
when operating at
low speeds (approx.
Frame number Max.
6 Hz).
speed of 200 LJ min.
Frame number Max. speed
of 160 MJ to 180 LJ
Frame number Max.
speed of 132 MJ
Rotation speed (%)
Rated rotation speed
= 100% speed
This motor yields a
cooling effect even
when operating at
Frame number
Max. speed of
extremely low speeds
200 LJ min.
(approx. 0.6 Hz).
Frame number Max. speed
of 160 MJ to 180 LJ
Frame number Max.
speed of 132 MJ
Rotation speed (%)
Electronic Thermal
Operation (at 100%
Motor Load)
When operating continu-
ously at 50/60 Hz or less,
motor overload detection
(OL1) is detected. The
MxC outputs the error con-
tact, and the motor coasts
to a stop.
Operates continuously at 6
to 50/60 Hz.
Operates continuously at
0.6 to 60 Hz.