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3-3 Servomotor Specifications
OMNUC G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
3
Specifications
*1. These are the values when the motor 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.
 If the dynamic brake is activated frequently with high load inertia, the Dynamic Brake Resistor may burn. Do not
repeatedly turn the servo ON/OFF while the dynamic brake is enabled.
*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 Servomotors (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: 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.
Radial load
Thrust load
Shaft center (LR/2)
0.25
0 1000 2000 3000 4000
6000
(r/min)
5000
0.5
0.48
0.16 0.16
0.48 (4000)
0.3
(N • m)
Momentary operation range
Continuous operation range
Power supply voltage
dropped by 10%
0.08
0.5
0 1000 2000 3000 4000
4300
6000
(r/min)
5000
1.0
0.95
0.95 (3700)
0.56
0.4
0.32 0.32
(N • m)
Momentary operation range
Continuous operation range
Power supply voltage
dropped by 10%
0.16
1.0
0 1000 2000 3000 40004000
6000
(r/min)
5000
2.0
1.91
0.8
0.64
1.91 (2600)
0.64 0.64
(N • m)
Momentary operation range
Continuous operation range
Power supply voltage
dropped by 10%
0.32
3100
2.0
0 1000 2000 3000 40004000
6000
(r/min)
5000
4.0
3.8
3.8 (2600)
1.7
1.3
1.3 1.3
(N • m)
Momentary operation range
Continuous operation range
Power supply voltage
dropped by 10%
0.32
3100
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