Description of the motors
2.3 Technical features and ambient conditions
1FK2 synchronous motors for SINAMICS S120
Configuration Manual, 06/2019, A5E46927724B AB
23
Permanent-magnet synchronous motor
Degree of protection according to
IP64, optionally IP65
Cooling acc. to EN 60034-6
Type of construction according to
IM B5 (IM V1, IM V3)
Shaft extension according to
Plain shaft or with feather key (half key balancing)
Shaft and flange accuracy acc. to
DIN 42955 (IEC 60072–1)
Tolerance N (normal), for radial eccentricity of the shaft extension, concentrici-
ty of centering edge, and axial eccentricity of the mounting flange to the axis of
Vibration severity grade according to
EN 60034-14 (IEC 60034-14)
Grade A is maintained up to rated speed
Insulation of the stator winding according
to EN 60034-1 (IEC 60034-1)
1FK2❑03:
Temperature class 130 (B) for a winding temperature of
ΔT
= 80 K at an ambi-
ent temperature of +40 °C
1FK2❑04 ... 1FK2❑10:
Temperature class 155 (F) for a winding temperature of
ΔT
= 100 K at an am-
bient temperature of +40 °C
Sound pressure level
L
pA
(1 m) according
to DIN EN ISO 1680, max. tolerance
+ 3 dB (A)
1FK2❑03, 1FK2❑04: 55 dB (A);
1FK2❑05, 1FK2❑06: 65 dB (A);
1FK2❑08, 1FK2❑10: 70 dB (A)
Encoder systems, built-in with DRIVE-
CLiQ interface
• AS22DQC absolute encoder, singleturn, 22 bit
• AM22DQC absolute encoder 22 bit + 12 bit multiturn
Optionally installed, 24 V DC
Connectors for power and signals, rotatable
Anthracite, similar to RAL7016