Specification Comparison Between Pm Motor Control And Induction Motor Control - Mitsubishi Electric FR-F820-00077 Instruction Manual

Appendix
A.2 Specification comparison between PM motor control and
induction motor control
Item
Applicable motor
Number of connectable motors
Number of motor poles
Rated motor frequency
Maximum output frequency
Permissible load
Maximum starting torque
Frequency
setting
resolution
(based on the
motor rating)
Tab. A-2:
FR-F800

Specification comparison between PM motor control and induction motor control

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