Festo Рабочие компоненты для VTIA, ISO 15407-2 - Handbuch (Seite 42)

VABF-S4-1-V2B1…
42 Festo – VABF-S4-1-V2B1…-D2 – 1212a English
1.3 Operating statuses of the vacuum module
The vacuum module can be in the following operating statuses:
Operating status Solenoid coil 12 Solenoid coil 14 Explanation
Generate vacuum Controlled
(via valve terminal)
Not controlled Solenoid coil 12:
impulse control with lock
1)
Generate vacuum Not controlled Not controlled Operating status after failure of
the pilot air supply or the
electrical supply of the vacuum
module Tab. 2
Air saving Controlled
(via internal
electronics of the
vacuum module)
Controlled
(via internal
electronics of the
vacuum module)
Maintain vacuum in valve
mid-position
1)
Ejection Not controlled Controlled
(via valve terminal)
Vacuum accelerates
dismantling
1)
Normal position
2)
Not controlled Not controlled Status after the end of the
“Ejection” signal
1)
1) Also see Fig. 3 and Fig. 4
2) Normal position means the vacuum module is not in the “Generate vacuum”, “Air saving” or “Ejection” operating status.
Tab. 1 Operating statuses of the vacuum module
If the pilot air supply or the electrical supply of the vacuum module is switched off, the respective oper-
ating status is changed as follows ( Tab. 2).