Ab[n] – absolute encoder setting parameters – ElmoMC SimplIQ Command Reference User Manual

Page 17

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AB[N] – Absolute Encoder Setting Parameters

Purpose:

Configuration parameters for absolute sensor implementation of the SimplIQ drive series:

Command Description

AB[1]

An absolute position resolution (number of abs. position readings) per
analog signal cycle.

AB[2]

For internal use only

AB[3]

Bit-field value, see definitions below

AB[4] Absolute

value direction:

0: Keep the original value as received from the sensor
1: Invert the original value. Absolute value for calculating absolute position
is AB[5] – absolute value.

AB[5]

Maximum value of the absolute position sensor:
For rotation encoders - 2

(Single_Turn+Multi_Turn)

For linear encoders -

]

6

[

*

]

1

[

AB

th

SensorLeng

AB

AB[6]

Signal Period Length in nm (0.001um) for linear encoders or Signal Periods
per Revolution for rotation encoders

The bit descriptions of AB[3] are summarized in the following table:

Bits Description

0…4

Single-Turn sensor resolution in bit

5…8

Multi-Turn sensor resolution in bit

1

9…12

Absolute Feedback Type:
Value Type
0 Reserved

1 Absolute linear encoder

2 Single-Turn absolute rotary encoder

3 Multi-Turn absolute rotary encoder

4-15 Reserved

13…15 Serial

Communication

Interface

Value Interface
0 Reserved

1 EnDat 2.1 format (pure binary code)

2 HiperFace format (pure binary code)

3-7 Reserved

1

Only for multi-turn sensor type, otherwise zero

SimplIQ

Command Reference Manual

Alphabetical Listing

MAN-SIMCR (Ver. 4.5)

3-4

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