Monitoring For Encoders With Endat Interface - HEIDENHAIN iTNC 530 HSCI Technical Manual

July 2013

Monitoring for encoders with EnDat interface:

In the event of a disturbance, the error message EnDat defective <error
code> <axis> will appear.
The error code is shown in hexadecimal notation. Error codes may also appear
combined, in which case they are added together.
There are two possible types of errors:
The encoder reports an error.

Access to the encoder via the EnDat interface is faulty.

Codes for errors reported by the encoder:
Error code Meaning
0x00000001 Light source defective
0x00000002 Signal amplitude too low
0x00000004 Incorrect position value
0x00000008 Overvoltage
0x00000010 Undervoltage
0x00000020 Overcurrent
0x00000040 Replace the battery
0x00000080 Reserved
0x00000100 Reserved
0x00000200 Reserved
0x00000400 Reserved
0x00000800 Reserved
0x00001000 Reserved
0x00002000 Reserved
0x00004000 Reserved
0x00008xxx EnDat could not be read. Possible causes:
Encoder defective

Check the wiring (cable and EnDat amplifier)

Encoder not connected

Encoder connected to wrong connector

Motor and position encoder switched

Check cable lengths

6.1 Control loops
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