Festo VTSA-F-CB, Руководство пользователя, Страница: 76 / 106

76 Festo — VTSA-F-CB — 2021-06a
Modification
1.
10.1.1.6 LED displays of the address extension modules
LED Meaning
VABF-S6-1-P1A7-G12-CB, VABF-S6-1-P8A7-G12-CB, VABF-S6-1-P8A7-G12-CB1
VABF-S6-1-P1A6-G12-CB, VABF-S6-1-P8A6-G12-CB, VABF-S6-1-P8A6-G12-CB1
red light
–
Initialisation error
–
Diagnostics
–
Valve undervoltage (U
VAL
)
–
Wire break (Open Load)
–
Short circuit at valve
Tab. 53: LED displays of the address extension modules
10.2 Fault clearance
Fault description Cause Remedy
Air flows out of a common line. Insufficient assembly of:
–
Tubing in fittings
–
Sub-base fittings
Check tubing connections.
Air flows out of a working line.
Valve or pneumatic system does
not react as expected. –
–
Check routing of tubing lines.
–
Check the electrical wiring.
Valve or pneumatic system does
not respond. Ducts (3), (5) or (12) intended
for exhaust air are sealed
–
Check pneumatic circuit and
pressure zone formation.
–
Check pressure zones for
supply with operating and
pilot pressure.
Detenting manual override of
the working valves in switching
position Bring the detenting manual
override of the working valves
into the initial position.
– Service required
Tab. 54: Fault clearance
11 Modification
11.1 Replacing valve terminal components
If the original configuration of the valve terminal is changed by replacing components:
• Check new configuration in the online configurator for validity
• In the event of unclarity contact the regional Festo representative
è www.festo.com.
11.1.1 Replacing valves or cover plates
Disassembly
Unscrew component retaining screws.
–
Size of Allen key
è
Tab. 55 Tightening torques.