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3-3 Servomotor Specifications
OMNUC G5-SERIES AC SERVOMOTOR AND SERVO DRIVE USER'S MANUAL
3
Specifications
*1. These are the values when the Servomotor is combined with a drive at normal temperature (20°C, 65%). The
momentary maximum torque indicates the standard value.
*2. Applicable load inertia.
The operable load inertia ratio (load inertia/rotor inertia) depends on the mechanical configuration and
its rigidity. For a machine with high rigidity, operation is possible even with high load inertia. Select an
appropriate motor and confirm that operation is possible.
The dynamic brake is rated for short-term operation. Use it only for emergency stopping. Design the
system to stop for at least ten minutes after the dynamic brake operates. Otherwise, the dynamic brake
circuits may fail or the dynamic brake resistor may burn.
*3. The allowable radial and thrust loads are the values determined for a limit of 20,000 hours at normal operating
temperatures.
The allowable radial loads are applied as shown in the following diagram.
*4. This is a non-excitation brake. (It is released when excitation voltage is applied.)
*5. The operation time is the value (reference value) measured with a surge suppressor (CR50500 by Okaya Electric
Industries Co., Ltd.).
*6. Direct current switching with a varistor (Z15D151 by Ishizuka Electronics Co.).
*7. Direct current switching with a varistor (TNR9G820K by Nippon Chemi-Con Corporation).
Torque-Rotation Speed Characteristics for 3,000-r/min Servomotors
3,000-r/min Servomotor (100 VAC)
The following graphs show the characteristics with a 3-m standard cable and a 100-VAC input.
• R88M-K05030H/T (50 W) • R88M-K10030L/S (100 W) • R88M-K20030L/S (200 W)
• R88M-K40030L/S (400 W)
Note 1: The continuous operation range is the range in which continuous operation is
possible. Continuous operation at the maximum speed is also possible. However,
doing so will reduce the output torque.
Note 2: If the motor power cable exceeds 20 m, the voltage drop will increase and the
momentary operation range will become narrower.
Radial load
Thrust load
Shaft center (T/2)
0.25
0 1000 2000 3000 40004000 5000
0.5
0.48
0.16 0.16
0.48 (4000)
0.3
0.08
Power supply voltage
dropped by 10%
Momentary operation range
(N • m)
Continuous operation range
6000
(r/min)
0.5
0 1000 2000 3000 40004000
4300
5000
1.0
0.95
0.95(3700)
0.56
0.4
0.32 0.32
0.16
Power supply voltage
dropped by 10%
(N • m)
Momentary operation range
Continuous operation range
6000
(r/min)
1.0
0 1000 2000 3000 40004000 5000
2.0
1.91
0.8
0.64
1.91 (2600)
0.64 0.64
0.32
3100
Power supply voltage
dropped by 10%
6000
(r/min)
Momentary operation
range
Continuous operation
range
(N • m)
2.0
0 1000 2000 3000 40004000 5000
4.0
3.8
3.8(2600)
1.7
1.3
1.3 1.3
0.32
3100
Power supply voltage
dropped by 10%
(N • m)
Momentary operation
range
Continuous operation
range
6000
(r/min)
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