Cause:
- if the parameter "BC-TYP" in the "Encoder & BC" menu is set to "ZArec", "PFU", or "PFU+BRxx": no signal is present at input "BC" when switching on the ZAdyn
Remedial action:
- check the wiring
- check whether there is a fault on the display of the recuperation unit
- check the setting of the parameter "BC-TYP"
- when using a BR with temperature contact on the ZArec, check that this contact is connected to the ZArec
- when using a BR without temperature contact on the ZArec, check whether the temperature monitoring input on the ZArec is bridged
- switch ZAdyn off and on again