Configuration of the incremental encoder

If you use an incremental encoder, configure it with the following CoE parameters:

Configuration of the incremental encoder 1:

Index

Name

Unit

8008:01hex

Invert feedback direction

-

8008:02hex

Enable power supply

-

8008:05hex

Enable ENC C input

-

8008:11hex

Supply voltage output

mV

8008:12hex

Encoder type

-

8008:13hex

Encoder Increments per Revolution

inc/rev

8008:11 "Supply voltage output"

In this parameter, set the magnitude of the supply voltage for the encoder in millivolts. The value range is 2…24 V.

Switch on the supply voltage output by setting parameter 8008:02 "Enable power supply" to TRUE.

8008:12 "Encoder type"

In this parameter, set the signal type of the encoder.

An encoder must be connected if the value of this parameter is not "disabled". Otherwise, an error will be reported in the Diag History.

"HTL single ended" is set in the factory settings.

Signal type

Max. input frequency 1)

Current sink

2.5 mA

Signal level
Low

Signal level
High

Comment

disabled

 

-

-

-

Incremental encoder interface disabled

Is disabled by DM2 for Six-Step Hall

RS422 differential

5 million inc/s

no

Udiff < -0.45 V

Udiff > +0.45 V

-

TTL single ended

1 million inc/s

yes

< 0.8 V

> 3.0 V

-

HTL differential

5 million inc/s

no

Udiff < -2 V

Udiff > +2 V

-

HTL single ended

5 million inc/s

yes

< 6 V

> 9.2 V

-

RS422 differential – high impedance input

5 million inc/s

no

Udiff < -0.45 V

Udiff > +0.45 V

For applications in which the encoder signals are too weak

TTL single ended – input filters disabled

5 million inc/s

yes

< 0.8 V

> 3.0 V

Higher signal frequency possible. More sensitive to interference.

Open collector

250,000 inc/s

no

< 0.8 V

> 2.0 V

Encoder switches to ground

1) with 4-fold evaluation.

8008:13 "Encoder Increments per Revolution"

Multiply the number of increments of the encoder by a factor of four. Enter the result in this parameter.

If you are using a magnetic encoder with interpolation, calculate the number of increments according to the following equation:

Configuration of the incremental encoder 2:

Example:

Configuration of the incremental encoder 3: