1PH7 induction motors (Machine tools)
Configuration Manual, (APH7W), 04/2009, 6SN1197-0AD72-0BP0
49
Mechanical properties of the motors
3
3.1
3.1
Cooling
1PH7 motors are force-ventilated. When mounting the motor, it must be ensured that the
motor can be well ventilated. This is especially true when mounting the motors in enclosures.
It is not permissible that hot discharged air is drawn-in again; cooling air must be able to
freely enter and exit. Accumulated dirt in the cooling ducts should be avoided as this can
reduce the cooling airflow.
All catalog data refer to an ambient temperature of 40°C and an installation altitude up to
1000 m above sea level.
CAUTION
Temperatures of over 100°C can occur at the surface of the motor.
Ambient/cooling medium temperature
Operation: T = -15 °C to +40 °C (without any restrictions)
Storage: T = -20 °C to +70 °C
Under conditions other than those specified above (ambient temperature > 40°C or
installation altitude > 1000 m above sea level), the permissible torque/power must be
determined from the following table. Ambient temperatures and installation altitudes are
rounded-off to 5° C or 500 m respectively.
Table 3- 1
Factors for reducing the torque/power acc. to EN 60034-6
Ambient temperature in °C
Installation altitude
above sea level
40
45
50
1000
1.00
0.96
0.92
1500
0.97
0.93
0.89
2000
0.94
0.90
0.86
2500
0.90
0.86
0.83
3000
0.86
0.82
0.79
3500
0.82
0.79
0.75
4000
0.77
0.74
0.71
NOTICE
For ambient temperatures > 50 °C, please contact your local Siemens office.
Summary of Contents for SINAMICS S 1PH7
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