Festo Рабочие компоненты для VTIA, ISO 15407-2 - Handbuch (Seite 61)

VABF-S4-1-V2B1…
Festo – VABF-S4-1-V2B1…-D2 – 1212a English 61
10 Troubleshooting
Note
The required vacuum may not be generated if there is an insufficient supply of air to the
valve terminal.
Malfunction Possible cause Remedy
Workpiece does not
release from the
suction cup
A vacuum has built up when lifting
large suction cups quickly
– Increase the duration and
intensity of the ejector pulse
– Lift the suction cup slower from
the workpiece
– Actively set the ejector pulse
when lifting the suction cup
The tubing used between the suction
cup and vacuum module is sized
incorrectly (tubing is too long and/or
internal diameter is too small)
Replace the tubing
Tubing requirements section 4.2
Flow control screw is closed Open the flow control screw
No display Supply voltage not applied or no
permitted operating voltage
Switch on supply voltage / maintain
permitted operating voltage range
Electrical connections swapped
(incorrect polarity)
Wire in accordance with the circuit
diagram
Device defective Replace the device
Incomplete display Display defective Replace the device
Outputs do not
switch according to
settings
Short circuit/overload at relevant
output
Eliminate short circuit/overload
Device defective Replace the device
Settings cannot be
edited (“Lock” in the
display)
Access protection active Enter the security code (if the
security code has been lost, reset the
device to the factory settings
section 7.3 )