Appendix Specification comparison between PM motor control and induction motor control
FR-F800 A - 3
A.2 Specification comparison between PM motor control and
induction motor control
Item PM motor control Induction motor control
Applicable motor
Premium high-efficiency IPM motor
MM-EFS,
MM-THE4 series (the same capacity
as the inverter capacity)
General-purpose motor SF-JR, SF-PR
series, etc.
Number of connectable motors 1: 1
Several motors can be driven under V/F
control.
Number of motor poles
MM-EFS (1500 r/min specification)
15 kW or lower: 6 poles
MM-EFS (1500 r/min specification)
18.5 kW or higher: 8 poles
MM-EFS (3000 r/min specification): 6
poles
MM-THE4: 6 poles
Normally 2, 4, or 6 poles.
Rated motor frequency
MM-EFS (1500 r/min specification)
15 kW or lower: 75 Hz
MM-EFS (1500 r/min specification)
18.5 kW or higher: 100 Hz
MM-EFS (3000 r/min specification):
150 Hz
MM-THE4: 75 Hz
Normally 50 Hz or 60 Hz
Maximum output frequency
MM-EFS (1500 r/min specification)
15 kW or lower: 112.5 Hz
MM-EFS (1500 r/min specification)
18.5 kW or higher: 150 Hz
MM-EFS (3000 r/min specification):
200 Hz
MM-THE4: 90 Hz
590 Hz (17700 r/min with 4P)
(Set the upper limit frequency (Pr.0,
Pr.18) according to the motor and
machine specifications.)
Permissible load
120% 60 s, 150% 3 s
(inverse-time characteristics)
(The % value is a ratio to the rated motor
current.)
120% 60 s, 150% 3 s
(inverse-time characteristics)
(The % value is a ratio to the inverter
rated current.)
Maximum starting torque 50 %
120%
(Advanced magnetic flux vector control)
Frequency
setting
resolution
(based on the
motor rating)
Terminal 2, 4
(0 to 10 V/12 bit)
MM-EFS (1500 r/min specification)
15 kW or lower
,
MM-THE4: 0.018 Hz
MM-EFS (1500 r/min specification)
18.5 kW or higher
: 0.025 Hz
MM-EFS (3000 r/min specification):
0.036 Hz
0.015 Hz (60 Hz rating)
Terminal 2, 4
(0 to 5 V/11 bit,
0 to 20 mA/
11 bit),
terminal 1
(0 to ±10 V/
12 bit)
MM-EFS (1500 r/min specification)
15 kW or lower
,
MM-THE4: 0.036 Hz
MM-EFS (1500 r/min specification)
18.5 kW or higher
: 0.050 Hz
MM-EFS (3000 r/min specification):
0.072 Hz
0.03 Hz (60 Hz rating)
Terminal 1
(0 to ±5 V/11 bit)
MM-EFS (1500 r/min specification)
15 kW or lower
,
MM-THE4: 0.072 Hz
MM-EFS (1500 r/min specification)
18.5 kW or higher
: 0.100 Hz
MM-EFS (3000 r/min specification):
0.144 Hz
0.06 Hz (60 Hz rating)
Tab. A-2: Differences between PM motor control and induction motor control (1)
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