Remedied from:
8400 HighLine SW V2.00 onwards
Behaviour of the new version?
The above-named software version rectifies this functional restriction.
Which products are affected?
8400 HighLine SW ≤ V1.00
What happens?
When switching off the supply voltage of the frequency inverter, the current values of the 'L_SampleHold' function blocks are not saved with mains failure protection.
This function restriction has been eliminated with the firmware version mentioned before.
When does the problem occur?
The problem occurs when the 'L_SampleHold' function blocks are used and the supply voltage of the frequency inverter is switched off.
Possible diagnostics?
Compare the output values of the 'L_SampleHold' function blocks in the function block editor before and after mains connection.
Short-term measures/recommendations?
Plan to use an external 24V supply.
Evaluation:
This behaviour usually occurs during commissioning and can be eliminated by applying the recommendations mentioned before.
Published with service message No. 2009/02
