Motor Torque Characteristic - Mitsubishi Electric FR-E700EX Instruction Manual


This value is a value at the shaft of the motor with a reduction gear.

If the value exceeds the described value, please contact your sales representative.

The reduction gear efficiency differs depending on the reduction ratio. Additionally, the reduction gear efficiency varies depending on operating conditions,
such as the output torque, rotation speed, and temperature.
The value in the table is a typical value for the rated torque at the rated speed and at a room temperature, but not a guaranteed value.

The following conversion formula is used for the unit conversion of the backlash: 1 minute = 0.0167°.

The permissible radial load is the value at the center of the output shaft of the reduction gear. On the shaft, do not apply a load exceeding the value in the
table. Each value in the table shows the permissible value for the single load application.
7.4.2

Motor torque characteristic

MM-GKR13
Torque
200%
Short time operation range
100%
90%
0%
 When the input voltage is low, the torque may be reduced.
 The continuous operation torque becomes 80% at 6r/min or lower.
 When driving the motor under high load in low-speed range (especially at 6 r/min or lower), the protective function by
electronic thermal O/L relay (E.THT or E.THM) may be activated and the short time operation range torque may not be
generated.
Specifications of the dedicated PM motor [MM-GKR motor]
Q/2
Q
(3S)
Continuous
operation range
750r/min 3000r/min
Motor rotation speed
Q: Shaft length
MM-GKR23 to 73
Torque
200%
Short time operation range
100%
Continuous
operation range
0%
Motor rotation speed
(3S)
3000r/min
7
309