Rating In Case Of Deviating Ambient Conditions - Bosch Rexroth IndraDyn S MS2N Operating Instructions Manual

MS2N Synchronous Motors
5.3 De-rating in case of deviating ambient conditions.
Reduce high performance data:
1. Reduce the standstill torque M
with the following factors.
We have:
M = M
0 red 0 60K
M = M
0 red 0 100K
M = M
0 red 0 100K
2. Pan the S1-characteristic curve M
tion of the S1-characteristic curve and to the calculated point M
torque axis.
M
M
0
0 red
Fig. 5-1: Determine S1-characteristic curve M
The determined characteristic curve M
characteristic curve with appropriate de-rating.
De-rating factors for self-cooling 60K
Height [m] 40 °C
1000 1.00
1500 0.97
2000 0.94
2500 0.90
3000 0.86
Tab. 5-2: M - De-rating Factor f
0 60 K
DOK-MOTOR*-MS2N*******-IT03-EN-P
0 60K
× f
TH 60K
× f
TH 100K
× f
TH W
M
M
S1 red
45 °C
0.94
0.91
0.88
0.85
0.81
for MS2N03 ... 10 (standard values)
TH 60K
Operating conditions and handling
or M specified in the data sheet,
0 100K
parallel to the speed axis to the junc-
S1
S1
n [1/min]
with de-rating factor f
S1 red
shows approximately the S1-
S1 red
50 °C 55 °C
0.88 0.83
0.85 0.81
0.83 0.78
0.79 0.75
0.76 0.71
Bosch Rexroth AG
on the
0 red
TH
60 °C
0.78
0.76
0.73
0.70
0.67
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