Siemens 1FT7 - Incremental Encoders

Motor components
5.2 Encoder (option)
1FT7 Synchronous Motors
206 Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
5.2.4 Incremental encoders
Function:
● Angular measuring system for the commutation
● Speed actual value sensing
● Indirect incremental measuring system for the position control loop
● One zero pulse (reference mark) per revolution
Table 5- 2 Technical data for incremental encoders
Properties Incremental encoder, sin/cos 1 Vpp,
2,048 S/R with C and D track
(encoder IC2048S/R)
Incremental encoder, 22-bit, with
commutation position
(encoder IC22DQ)
Mech. limiting speed 12000 RPM 12000 RPM
Operating voltage 5 V ± 5 % 24 V
Current consumption 150 mA, maximum 180 mA, maximum
A-B track: Incremental resolution 2,048 S/R (1 Vpp)
(sin/cos periods per revolution)
22 bit
C-D track: Rotor/commutation position 1 S/R (1 Vpp)
(sin/cos periods per revolution)
11-bit
Reference signal 1 per revolution 1 per revolution
Angular error ± 40" ± 40"
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5
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5
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rHO rPHFK
rHOsrHO
rbHO
rPHFK
rHO

8>9@
8>9@
rbHO
Figure 5-1 Signal sequence and assignment for encoder IC2048S/R when the
drive is rotating clockwise