Motor Components (Options)
3.2 Encoder
3.2.3
Resolver
Function:
Note
The limiting frequency of the drive converter must be carefully observed.
S
SIMODRIVE 611U: Limiting frequency 432 Hz (before software release 4.1:
375 Hz)
S
SIMODRIVE 611A: Only 2–pole resolvers are possible
Table 3-7
Erregerspannung
Excitation frequency
Power consumption
Angular accuracy (bandwidth)
2–pole
multi–pole
Number of poles
Ratio
V
Sinusoidal track
V
Cosin track
Fig. 3-4
1) The pole number is identical to the motor pole number
1FT6/3-186
S Speed actual value sensing
S Rotor position encoder for inverter control
S Indirect incremental meas. system for the pos. contr. loop
Technical data, resolvers
V
a = arctan
V
Output signals
5 V (rms) to 13 V (rms)
4 kHz to 10 kHz
< 80 mA (rms)
< 14'
< 4'
1)
2, 4, 6 or 8
0.5
Sinusoidal track
Cosin track
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Synchronous Servomotors, 1FT6 (PFT6) – 02.04 Edition