Remedied from?
9400 HighLine SW V2.0
Eliminated function restriction
EnDat linear scales with protocol 2.1 are now supported. The absolute position of the measuring system is read in after switch on.
Which products are affected?
9400 HighLine SW ≤ V1.5
What happens?
Linear measuring systems exclusively support the evaluation of Sin/Cos signals. Reading an absolute value (e.g. during switch on) does not work.
When does the problem occur?
If an absolute position is to be read out of the measuring system.
Possible diagnostics?
The error message 'Absolute value encoder: communication error' (0x007b001a) is generated.
Short-term measures/recommendations?
Provide for homing after each start-up of the system.
Rotating asynchronous machines : Parameterise the linear scale as the motor encoder
Rotating synchronous machines : Use a resolver for motor commutation and parameterise the linear scale as the position encoder.
Evaluation
This topic must already be taken into consideration in the project planning phase.
Published with Service Message No. 27/2007
