Burkert 8792 Operating Instructions Manual page 195

Type 8792, 8793
Servicing and Troubleshooting the
Position Controller Type 8792
37.1.2. error and warning messages while the X.TUNE function is
running
Display
X.TUNE locked
X.TUNE
ERROR 1
X.TUNE
ERROR 2
X.TUNE
ERROR 3
X.TUNE
ERROR 4
X.TUNE
ERROR 5
X.TUNE
ERROR 6
X.TUNE
ERROR 7
X.TUNE
WARNING 1*
* Warning information gives tips on optimized operation. The device is operational even if this warning information is not
observed. Warning information is automatically hidden after several seconds.
Table 50: Error and warning message on X.TUNE; position controller 8792
37.2. Other faults
Problem
POS = 0 (when CMD > 0%) or
POS = 100%,
(when CMD < 100%)
Table 51: Other faults; position controller 8792
Causes.of.error
The X.TUNE function is blocked
No compressed air connected
Compressed air failed during Autotune
Actuator or control system deaeration
side leaking
Control system aeration side leaking
The slewing range of the position
measuring system is exceeded by 120°
The end positions for POS-MIN and
POS-MAX are too close together
Incorrect assignment POS-MIN and
POS-MAX
Potentiometer is not coupled optimally
to the actuator.
An optimum connection can provide a
more accurate position measurement
Possible.causes
Sealing function (CUTOFF) has
been
unintentionally activated
remedial.action
Input access code
Connect compressed air
Check compressed air supply
Not possible, device defective
Not possible, device defective
Correct attachment of the position
measuring system shaft on the actuator
(see chapter 14.2.. and 14.3.. )
Check compressed air supply
To determine POS-MIN and POS-MAX, move
the actuator in the direction indicated on the
display.
Set middle position as described in chapter
14.2.4.Aligning lever mechanism.
remedial.action
Deactivate sealing function
english
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