8720sm motor temperature derating curve – Rockwell Automation 8720MC Drives Integration Manual User Manual

Page 206

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Publication 8720MC-IN001D-EN-P — December 2002

D-18

8720SM Motor Specifications and Performance Curves

Figure D.18
8720SM-018S2FB Motor with 8720MC-B048 Drive

8720SM Motor Temperature Derating Curve

Figure D.19 shows the derating curve for all 8720SM Motors operating
at temperatures above the 40° C (104° F) rated temperature.

Figure D.19
8720SM Motors

0

5

10

15

20

25

30

0

1000

2000

3000

4000

5000

6000

7000

8000

RPM

kW

S6 (50%ED) kW

Continuous (S1) kW

Maximum kW

0

18

36

54

72

90

108

126

144

162

180

0

1000

2000

3000

4000

5000

6000

7000

8000

RPM

Torque in N-m

Maximum

Torque in N-m
Rated 118
S6-50% 140
Max. 176

S6-50%

Rated

Performance assumes 460V ac
input inverter with a minimum of
420V ac at motor.

Amps at Base Speed -
Cont Amps 47.1
S6 Amps 54
Max Amps 65

40

45

50

55

60

65

70

Ambient Temperature in Degrees C

70%

75%

80%

85%

90%

95%

100%

105%

Percent of Nominal Rating

8720SM Motor Temperarture Derating

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