Siemens SIMOTICS S-1FK7 - Resolvers

Description of the motors
2.6 Mounting and options
1FK7 G2 synchronous motors
Operating Instructions, 05/2021, A5E50907562B AA
41
Table 2- 10 Technical data, absolute value encoder with DRIVE-CLiQ interface
Designation
Code
Operating
voltage
Max. current
drain
Absolute reso-
lution (single-
turn)
Traversing-
range (multi-
turn)
Angle error
Serial absolute position interface: DRIVE-CLiQ
Absolute encoder, single-
turn 24 bit
AS24DQI
24 V
110 mA
16,777,216
(= 24 bits)
-
±40"
Absolute encoder
24 bit + 12 bit multiturn
AM24DQI
24 V
110 mA
16,777,216
(= 24 bits)
4096 (=12 bits)
±40"
Absolute encoder, single-
turn 20 bit
AS20DQI
24 V
110 mA
1,048,576 (=20
bits)
-
±120"
Absolute encoder
20 bit + 12 bit multiturn
AM20DQI
24 V
110 mA
1,048,576 (=20
bits)
4096 (=12 bits)
±120"
Absolute encoder
22 bit + 12 bit multiturn
AM22DQ
24 V
210 mA
4,194,304
(=22 bits)
4096 (=12 bits)
±40"
Absolute encoder
20 bit + 12 bit multiturn
AM20DQ
24 V
210 mA
1,048,576 (=20
bits)
4096 (=12 bits)
±120"
Absolute encoder
16 bit + 12 bit multiturn
AM16DQ
24 V
210 mA
65,536 (=16
bits)
4096 (=12 bits)
±280"
Mech. speed limit for all absolute value encoders: 12000 rpm
The signal sequence and assignment A/B track is provided in Chapter Technical data of the
incremental encoders for 1FK7 motors (Page 38), Fig "Signal sequence and assignment for
encoders IC2048S/R without DRIVE-CLiQ interface for a positive direction of rotation".
Information on the encoder connection, pin assignment and cables is provided in Chapter
"Signal connection (Page 87).
2.6.4.4 Resolvers
Description
The number of sine and cosine periods per revolution corresponds to the number of pole
pairs of the resolver. In the case of a 2-pole resolver, the evaluation electronics may output
an additional zero pulse per encoder revolution. This zero pulse ensures a unique assignment
of the position information in relation to an encoder revolution. A 2-pole resolver can
therefore be used as a singleturn encoder. 2-pole resolvers can be used for motors with any
number of pole pairs. With multi-pole resolvers, the pole pair numbers of the motor and the
resolver are always identical. The resolution is correspondingly higher than for 2-pole
resolvers.