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Initialization can be performed by setting Pr.998 IPM parameter initialization or by choosing the mode on the operation panel.
Pr.998 Setting
0
Parameter settings for a general-purpose motor (frequency)
Parameter settings for a high-efficiency IPM motor MM-EF (rotations per
1
minute)
Parameter settings for a premium high-efficiency IPM motor MM-EFS
12
(rotations per minute)
101
Parameter settings for a high-efficiency IPM motor MM-EF (frequency)
Parameter settings for a premium high-efficiency IPM motor MM-EFS
112
(frequency)
IPM parameter initialization list
By selecting IPM motor control from the parameter setting mode or with Pr.998 IPM parameter initialization, the parameter
settings in the following table change to the settings required to drive an IPM motor. The changed settings differ according to
the IPM motor specification (capacity). Refer to the IPM motor specification list shown below.
Performing parameter clear or all parameter clear sets back the parameter settings to the settings required to drive a general-
purpose motor.
Parameter
Name
1
Maximum frequency
4
Multi-speed setting (high speed)
9
Electronic thermal O/L relay
13
Starting frequency
15
Jog frequency
18
High speed maximum frequency
Acceleration/deceleration
20
reference frequency
22
Stall prevention operation level
37
Speed display
55
Frequency monitoring reference
56
Current monitoring reference
71
Applied motor
80
Motor capacity
Terminal 2 frequency setting gain
125(903)
frequency
Terminal 4 frequency setting gain
126(905)
frequency
144
Speed setting switchover
240
Soft-PWM operation selection
PWM frequency automatic
260
switchover
374
Overspeed detection level
505
Speed setting reference
Current average value monitor signal
557
output reference current
870
Speed detection hysteresis
Regeneration avoidance
885
compensation frequency limit value
Description
General-purpose
motor
0
Pr.998
(Initial setting)
120Hz
60Hz
Rated inverter current
0.5Hz
5Hz
120Hz
60Hz
120%
0
60Hz
Rated inverter current
0
9999
60Hz
60Hz
4
1
1
9999
60Hz
Rated inverter current
0Hz
6Hz
Operation after selecting the parameter
setting mode on the operation panel
"IPM" Write "0"
"IPM" Write "1"
"IPM" Write "12"
Invalid
Invalid
Setting
IPM motor
IPM motor
(rotations per
(frequency)
minute)
1 (MM-EF),
101 (MM-EF),
12 (MM-EFS)
112 (MM-EFS)
Maximum motor
Maximum motor
rotations per minute
frequency
Rated motor
Rated motor
rotations per minute
frequency
Rated motor current
Minimum rotations
Minimum
per minute
frequency
Minimum rotations
Minimum frequency
per minute
Maximum motor
Maximum motor
rotations per minute
frequency
Rated motor
Rated motor
rotations per minute
frequency
120% (Short-time motor torque)
0
Rated motor
Rated motor
rotations per minute
frequency
Rated motor current
Pr.998 = 1,101 : 120
Pr.998 = 12,112 : 210
Inverter capacity
Rated motor
Rated motor
rotations per minute
frequency
Rated motor
Rated motor
rotations per minute
frequency
106 (Number of motor
6 (Number of motor
poles + 100)
poles)
0
1
Maximum motor
Maximum motor
rotations per minute
frequency 105%
105%
Rated motor frequency
Rated motor current
10 r/min
0.5Hz
(Speed detection
(Speed detection
hysteresis rotations
hysteresis
per minute)
frequency)
Minimum rotations
Minimum frequency
per minute
Setting increments
1, 12
0, 101, 112
1 r/min
0.01Hz
1 r/min
0.01Hz
0.01A
1 r/min
0.01Hz
1 r/min
0.01Hz
1 r/min
0.01Hz
1 r/min
0.01Hz
0.1%
1
1 r/min
0.01Hz
0.01A
1
0.01kW
1 r/min
0.01Hz
1 r/min
0.01Hz
1
1
1
1 r/min
0.01Hz
0.01Hz
0.01A
1 r/min
0.01Hz
1 r/min
0.01Hz
78
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