Motor Components (Options)
4.4 Motors without DRIVE-CLiQ
4.4.3 Resolvers
Notice
A max. operating frequency of 470 Hz must be maintained for SINAMICS S120.
Function:
• Speed actual value sensing
• Rotor position encoder for inverter control
• Indirect incremental measuring system for the position control loop
Table 4-9 Technical data, resolvers
Features Resolvers
Mech. limiting speed 15 000 RPM
Excitation voltage 5 V (rms) to 13 V (rms)
Excitation frequency 4 kHz to 10 kHz
Current consumption < 80 mA (rms)
Angular accuracy (bandwidth)
2-pole
multi-pole
< 14'
< 4'
Pole number
al with the motor pole
number)
2, 4, 6 or 8
Ratio 0.5
(The pole number is identic
8
6LQXVRLGDOWUDFN
8
&RVLQHWUDFN
D DUFWDQ
8
6LQXVRLGDOWUDFN
8
&RVLQHWUDFN
Figure 4-4 Output signals, resolver
1FT6 synchronous motors
4-10 Configuration Manual, (PFT6), Edition 12.2004, 6SN1197-0AD12-0BP0
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