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The available power supply input is three-phase 200 to 240V only.
Only the electronic thermal O/L relay is provided as the temperature protective function. (Servo motor: Electronic thermal
O/L relay and encoder thermistor, MM-GKR: Electronic thermal O/L relay)
In the low-speed range (750r/min or lower for the 0.1kW, 300r/min or lower 0.2 to 0.75kW), high-frequency tone is heard
because of the high frequency superposition control.
The maximum wiring length between the drive unit and motor is 30m.
Differences with AC servo
Item
Sensorless servo
MM-GKR motor
AC servo
JN series J4 series
Control mode
Speed control
Position control
Speed control
Position control
Torque control
Speed control
Position control
Torque control
Encoder
Not used Used Used
Initial magnetic pole detection
Required (detection time:
about 0.1s)
Not required because the
encoder is provided.
Not required because the
encoder is provided.
Speed fluctuation
ratio
(Load fluctuation
0 to 100%)
Digital input
0.05% or lower 0.01% or lower 0.01% or lower
Analog input
(Surrounding air
temperature:
2510°C)
0.5% or lower - 0.2% or lower
Speed control range
1: 1000
1: 5000 (internal speed
command)
1: 2000 (analog speed
command)
1: 5000 (internal speed
command)
Command resolution/encoder resolution
5120 pulses/rev
131072 pulses/rev
(incremental)
4194304 pulses/rev
(absolute)
Positioning accuracy
1.8° - -
Maximum torque
200% 300% 350%
Dynamic brake
None (must be provided
externally)
Built-in Built-in