Mechanical Data
2.3 Cooling
2.3
2.3
Cooling
Cooling versions
1FT☐ and 1FK☐ motors can be supplied with the following cooling versions:
Table 2-6 Cooling versions of 1FT☐ and 1FK☐ motors
Motor types Natural ventilation Forced ventilation Water cooling
9th position of the motor
Order No. (MLFB)
A S W
1FT6 SH 28, 36, 48 X
1FT6 SH 63 X X
1FT6 SH 80, 100, 132, 160 X X X
1FK☐ X
Natural ventilation/forced ventilation
Operating temperature range: -15 °C to +40 °C (without any restrictions).
The power loss is dissipated through radiation and natural convection which means that
adequate heat dissipation must be ensured by suitably mounting the motor.
All of the Catalog data refer to an ambient temperature of 40 °C, mounted so that the motors
are not thermally insulated and an installation altitude up to 1000 m above sea level.
If other conditions prevail (ambient temperature > 40 °C or installation altitude > 1000 m
above sea level), the permissible torque/power must be defined using the factors from the
following table (torque/power reduction according to EN 60034-6).
Ambient temperatures and installation altitudes are rounded-off to 5 °C or 500 m
respectively.
Table 2-7 Power de-rating as a function of the installation altitude and the ambient temperature
Installation
altitude
above sea
level [m]
Ambient temperature in °C
< 30 30–40 45 50 55 60
1000 1.07 1.00 0.96 0.92 0.87 0.82
1500 1.04 0.97 0.93 0.89 0.84 0.79
2000 1.00 0.94 0.90 0.86 0.82 0.77
2500 0.96 0.90 0.86 0.83 0.78 0.74
3000 0.92 0.86 0.82 0.79 0.75 0.70
3500 0.88 0.82 0.79 0.75 0.71 0.67
4000 0.82 0.77 0.74 0.71 0.67 0.63
General Section for Synchronous Motors
Configuration Manual, (PJAL), 11.2005 Edition, 6SN1 197-0AD07-0BP4
2-7
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