Omron OMNUC G5 Series User Manual page 109

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.
Radial load
*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 (TNR9G820K by Nippon Chemi-Con Corporation).
*7. Direct current switching with a varistor (Z15D151 by Ishizuka Electronics Co.).
Torque-Rotation Speed Characteristics for 2,000-r/min Motors
2,000-r/min Servomotors (200 VAC)
The following graphs show the characteristics with a 3-m standard cable and a 200-VAC input.
• R88M-K1K020H/T (1 kW)
Power supply voltage
(N • m)
dropped by 10%
15 14.3 (2000) 14.3 (2200)
Momentary operation range
10
4.77 4.77
5
Continuous operation range
0 1000 2000 3000
2,000-r/min Servomotors (400 VAC)
The following graphs show the characteristics with a 3-m standard cable and a 400-VAC input.
• R88M-K40020F/C (400 W)
Power supply voltage
(N • m)
dropped by 10%
6 5.73 (2400) 5.73 (2700)
Momentary operation range
3
1.91
1.91
Continuous operation range
0 1000 2000 3000
• R88M-K1K520F/C (1.5 kW)
Power supply voltage
(N • m)
dropped by 10%
21.5 (2000) 21.5 (2300)
20
Momentary operation range
10
7.16 7.16
Continuous operation range
0 1000 2000 3000
OMNUC G5-series AC Servomotors and Servo Drives User's Manual (with Built-in EtherCAT Communications)
Thrust load
Shaft center (LR/2)
• R88M-K1K520H/T (1.5 kW)
Power supply voltage
(N • m)
dropped by 10%
21.5
(2000)
20
Momentary operation range
6.0
10
7.16
4.0
3.2
Continuous operation range
(r/min)
0 1000
• R88M-K60020F/C (600 W)
Power supply voltage
(N • m)
dropped by 10%
10 8.59
(2100)
Momentary operation range
3.5
5
2.86
2.0
1.3
Continuous operation range
0 1000
(r/min)
10.0
6.0
4.8
(r/min)
3-3 Servomotor Specifications
21.5 (2300)
10.0
7.16
6.0
4.8
2000 3000
(r/min)
• R88M-K1K020F/C (1 kW)
(N • m)
15 14.3
8.59 (2400)
10
Momentary operation range
4.5
4.77
2.86
5
1.9
Continuous operation range
2000 3000 (r/min) 0
Power supply voltage
dropped by 10%
(2000) 14.3 (2200)
4.77 6.0
4.0
3.2
1000 2000 3000 (r/min)
3-38
3