Rotary Encoder; General Information On The Rotary Encoder; Operation Mode Encoder 1; Operation Mode Encoder 2 - DEMAG DIC 002 Series Operating Instructions Manual

8.8

Rotary encoder

8.8.1

General information on the rotary encoder

The actual speed value needs to be measured continuously for the control and regulation process for some of the
available settings in Configuration 30. The required incremental rotary encoder must be connected to digital
control terminals S5IND (channel A) and S4IND (channel B) of the frequency inverter.
The Operation Mode Encoder 1 490 and Operation Mode Encoder 2 493 parameters for encoders 1
and 2 are deactivated by default from software version 9 on.
● In 2xx Configurations, the user must activate the operating mode of the rotary encoder that is used and set
Source Actual Speed 766 accordingly.
Please note for the rotary encoder cable.  "Information on the pulse generator", Page 41
8.8.2

Operation Mode Encoder 1

Select Operation Mode Encoder 1 490 for rotary encoder 1 according to the connected incremental encoder.
A unipolar rotary encoder can be connected to the standard control terminals.
Operation Mode 490
0 - Off (default)
1 - Single Evaluation
4 - Quadruple Evaluation
11 - Single Evaluation unsigned
12 - Double Evaluation unsigned
101 - Single Evaluation inverted
104 - Quadruple Evaluation inverted
111 - Single Evaluation negative
112 - Double Evaluation negative
Tab. 74
8.8.3

Operation Mode Encoder 2

A further rotary encoder input is available when an extension module is fitted. It is programmed by means of the
Operation Mode Encoder 2 493 parameter.
The Source Actual Speed 766 parameter must be set accordingly.
For further details: see EM – UNI-01 extension module operating instructions.
Integrated pulse encoders of KB motors with S31 electronics may only be operated with an EM – UNI-01 exten‐
sion module with a 24 V power supply if the terminating resistor of the EM – UNI-01 unit is deactivated.
8.8.4

Division Marks Encoder 1

The parameter for the number of increments for the connected rotary encoder must programmed via the
Division Marks Encoder 1 491 parameter. Select the number of rotary encoder increments according to the
speed range of the application.
Max. number of Division Marks S
60 s/min
S = 150000 Hz ∙
max
n
max
Tab. 75
The maximum number of Division Marks S
S5IND (track A) and S4IND (track B).
Encoder 1
Speed measurement not active.
The digital inputs are available for further functions.
Two-channel rotary encoder with direction of rotation detection via channel signals A and B.
One signal edge per pulse is evaluated.
Two-channel rotary encoder with direction of rotation detection via channel signals A and B.
Four signal edges per pulse are evaluated.
Single-channel rotary encoder via channel signal A. The Actual Speed value is positive. One signal edge per
pulse is evaluated. Digital Input S4IND is available for further functions.
Single-channel rotary encoder via channel signal A. The Actual Speed value is positive. Two signal edges per
pulse are evaluated. Digital Input S4IND is available for further functions.
As for Operation Mode 1. The Actual Speed value is inverted. (Alternative to exchanging the channel signals)
As for Operation Mode 4. The Actual Speed value is inverted. (Alternative to exchanging the channel signals)
As for Operation Mode 11. The Actual Speed is negative.
As for Operation Mode 12. The Actual Speed is negative.
max
n = Max. speed of the motor in rpm
max
is defined by Frequency Limit f
max
= 150 kHz of digital inputs
max
71