11
2 Description
2.1 General product description
2.1.2 Motor with encoder IE3 or IE3 L
In this option, the servomotor described in
has an encoder with 3 output channels
(IE3). A permanent magnet on the shaft generates a moving magnetic field which is measured and
further processed by means of a rotary encoder. At the encoder's outputs there are two rectangular
signals, phase-shifted by 90°, with up to 1024 pulses and one index pulse per motor.
The encoder is available with different pulse rates (32, 64, 128, 256, 512 or 1024 pulses / revolution).
The pulse rate is included in the motor designation. Further resolutions from 1 – 127 pulses are avail-
able on request.
Example
Motor: 3242 … BX4 IE3-128 L
Features: Motor 3242 … BX4 with encoder, 128 pulses / revolution, line driver
Line driver
Encoders with an "L" in the encoder designation have differential encoder signal outputs in accord-
ance with TIA 422. Therefore, common-mode interferences are suppressed and longer supply connec-
tors are enabled. These three differential signals must be joined together again on the connection
side with a receiver module. The precise function is described in
Chapter 4.2 “Motor with encoder IE3
.
1
2
5
4
3
6 7
8
10
9
11
12
13
14
15
16
17
1 Cover
2 Built-on housing
3 Ribbon cable 1
4 Ribbon cable 2
5 Encoder board
6 Sensor magnet
7 Magnet holder
8 Mounting flange
9 Rear motor bearing
10 Spring
11 Winding with Hall sensors
12 Housing
13 Steel yoke
14 Rotor with permanent magnet
15 Shaft
16 Front motor bearing
17 Mounting flange
