Maintenance And Repair; Maintenance; Malfunctions - Burkert 3003 Instructions De Service

Electrical connection

7 MAINTENANCE AND REPAIR

7.1 Maintenance

The Type 3003 electrical actuator is maintenance-free when used in a manner
corresponding to the instructions in this manual.

7.2 Malfunctions

Problem
The electrical actuator
does not function (first
commissioning)
The electrical actuator
is stuck in the OPEN
position
The valve does not
open or close
completely
The electrical actu-
ator is stuck in the
CLOSED position
HD788
converter
Potentiometer 100 Ω
Resolution
Check power supply
Check the connections against the circuit diagram included
Check power supply
Check the connections against the circuit diagram included
Check whether the movement of the electrical valve is obstructed
Check power supply
Check the connections against the circuit diagram included
Check whether the movement of the electrical valve is obstructed
Check the limit switches
Check whether there is any overload due to too-high torque on the
valve (our actuators are equipped with thermostats).
If yes: interrupt power for 5 minutes
Check power supply
Check the connections against the circuit diagram included
Check whether the movement of the electrical valve is obstructed
Display
Power
Button
supply
7 ... 30 V DC
LED red
3003 - 21