Description of the motors
2.3 Technical features and environmental conditions
S-1FT7 synchronous motors
26 Configuration Manual, 09/2018, A5E45099423B AA
Table 2- 1 Technical features
Permanent-magnet synchronous motor
Rare-earth magnetic material
Cooling
• Natural cooling
• Forced ventilation
• Water cooling
Insulation of the stator winding according to EN
60034–1
Temperature class 155 °C (F) for a winding overtemperature of
ΔT = 100 K at an ambient temperature of +40 °C (naturally cooled,
force-ventilated) or a coolant temperature of +30 °C (water-cooled)
Impulse voltage insulation class according to EN
60034-18-41
IVIC: C
-15° to +40° C, derating at higher temperatures
Installation altitude for naturally-cooled and force-
ventilated motors according to EN 60034-1
(IEC 60034-1)
≤ 1000 m above sea level, otherwise power derating
For installation altitudes of more than 2000 m above sea level,
additional reduction of the voltage load of the motors (see ambient
Type of construction according to EN 60034–7
IM B5 (IM V1, IM V3)
Degree of protection according to EN60034–5 (IEC
IP64, optionally IP65 and IP67, motors with forced ventilation IP54
Flange form Flange, classic (compatible 1FT6/1FK7), optional flange, compact
Temperature monitoring according to EN 60034-11
Temperature sensor in the stator winding
Paint finish Pearl dark gray (similar to RAL 9023)
Drive shaft extension according to DIN 748-3
Plain shaft, shaft with feather key
Radial eccentricity, concentricity, and axial eccentrici-
ty according to DIN 42955 (IEC 60072-1)
Tolerance N (normal) or R
Vibration severity grade according to EN 60034–14
Grade A is observed up to rated speed, optional grade R
Sound pressure level according to DIN EN ISO 1680
Tolerance + 3 dB(A)
Natural cooling:
1FT703☐ to 1FT706☐: 65 dB(A)
1FT708 to 1FT713☐: 70 dB(A)
1FT7117: ≤ 80 dB(A)
Forced ventilation:
1FT706☐ to 1FT713☐: 73 dB(A)
1FT7117: ≤ 80 dB(A)
Water cooling:
1FT706☐: 65 dB(A)
1FT708☐ to 1FT710☐: 70 dB(A)
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