R88A-CNG01R Omron, R88A-CNG01R Datasheet - Page 146

• Manufacturer Part Number: R88A-CNG01R
• Description: Encoder Connector ABS Motor
• Manufacturer: Omron

Specifications of R88A-CNG01R

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3
3-2 Servomotor Specifications
3-45
Temperature Characteristics of the Servomotor and Mechanical System
• OMNUC G-Series AC Servomotors use rare earth magnets (neodymium-iron magnets).
• The maximum momentary torque rises by 4% at a normal temperature of 20°C compared to a
• Generally, when the temperature drops in a mechanical system, the friction torque and the load
• An increase in load friction torque seemingly increases load inertia. Therefore, even if the Servo
The temperature coefficient for these magnets is approximately −0.13%/°C. As the temperature
drops, the Servomotor's maximum momentary torque increases, and as the temperature rises, the
Servomotor's maximum momentary torque decreases.
temperature of −10°C. Conversely, the maximum momentary torque decreases about 8% when
the magnet warms up to 80°C from the normal temperature.
torque increase. For that reason, overloading may occur at low temperatures. In particular, in
systems that use a Decelerator, the load torque at low temperatures may be nearly twice as much
as the load torque at normal temperatures. Check whether overloading may occur at low
temperature startup. Also check to see whether abnormal Servomotor overheating or alarms occur
at high temperatures.
Drive gains are adjusted at a normal temperature, the Servomotor may not operate properly at low
temperatures. Check to see whether there is optimal operation even at low temperatures.
R88M-G4K510
100%
Rated Torque (%)
Precautions
for Correct Use
4.5 kW (Without Oil Seal)
0
10
20
30
Use the following Servomotors in the ranges shown in the graphs below.
Using outside of these ranges may cause the Servomotor to generate heat,
which could result in encoder malfunction.
Without brake
40
With brake
85%
70%
Ambient
temperature
R88M-G6K010T
100%
6 kW (With Oil Seal)
Rated Torque (%)
0
10
20
30
Without brake
40
With brake
90%
85%
Ambient
temperature