Burkert 8630 Operating Instructions Manual page 126

7 FAILURES AND REPORT ERRORS
Positioners from Top Control series are maintenance free if used according to the recommendations of this manual.
7.1 Report errors on LCD display
• Faults during initial activation:
Message
INT.ERROR
• Report errors during AUTOTUNE function:
Message
ERR 1
ERR 2
ERR 3
ERR 4
7.2 Miscellaneous failures
Problem
POS = 0 (by CMD > 0%)
resp.
POS = 100%, (by CMD < 100%)
126
Possible cause
Internal fault
Possible cause
Pressure supply not
connected
Air pressure failure during
Autotune
Air supply of the actuator/
positioner not secure
Exhaust air of the positio-
ner not secure
Possible cause
Close tight function (CUTOFF)
is involuntary active
Remedy
Not possible, unit defective
Remedy
Connect the compressed air supply
Control the compressed air supply
Not possible, unit defective
Not possible, unit defective
Remedy
Disactivate the close tight function
(see 8.7.4)
Operating instructions no. 800607