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Operating Instructions
BA 7020
Technical specifications subject to change without notice
Copyright according to ISO 16016
BA_7020_00_EN_MJ_4917
7.3 Error during normal positioner operation
The green LED is lit during normal positioner operation.
A flashing red LED shows an error during normal positioner operation. For this, DIP switch 12 must be set to 0.
The red LED shows errors during positioner operation as follows: (
= long flash, = short flash)
Error code 1:
interval
interval etc.
Error code 2:
interval
interval etc.
etc. up to ...
Error code 6:
interval
interval etc.
Multiple error codes can be displayed simultaneously:
Error codes 3 & 5:
interval
interval
The red LED flashes 10 times between intervals (1.6 s), as a maximum of 10 error codes could be allocated.
The error codes 7 to 10 are not allocated and are reserved for additional alarms.
Fig. 15:
Error codes during normal positioner operation
In case of errors which cannot be rectified or are not covered in this documentation, please
contact Baelz (see footer or contact your nearest Baelz customer service).
Error code
Error
Corrective action
1
Sensor malfunction at analogue input AI1:
No signal from potentiometer.
Check connection terminals 91, 92, 93
See wiring diagram chapter 10.
2
Sensor malfunction at analogue input AI2:
No setpoint signal.
Check connection terminals U, 0, I
See wiring diagram chapter 10.
3
Alarm 1: additional switching position (2EZ-1)
or other threshold value reached.
Informational alarm: 2EZ-1 is set using
DIP 5.
4
Alarm 2: additional switching position (2EZ-2)
or other threshold value reached.
Informational alarm: 2EZ-2 is set using
DIP 6.
5
Alarm 3: control deviation too large.
Deactivate antifreeze / excessive temp.
Re-initialize Baelz 7020.
6
Alarm 4: potentiometer end stops too
imprecise or obstruction.
Deactivate antifreeze / excessive temp.
Re-initialize Baelz 7020.
7-10
Reserved for as yet undefined alarms 5-8
No error possible.
Tip: