Valves - Festo VIFB-02- Series Manual

VIFB1 - 02
Yellow LEDs
(switching status display
of valve solenoid coil)
LED Switch position
Valve solenoid coil
Yellow out Basic setting
• Switch position
Yellow alight
• Basic position
Fig. 6/3: LED display – Switching status of valve solenoid coil
> IFB1-02_BES_V_018474g1_1996-04N - Restored Document - 2011-12-15 <
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6. Diagnostic/error treatment

Valves

There is a yellow LED above or below each val-
ve solenoid coil. This LED indicates the swit-
ching status of the valve solenoid coil.
POWER
BUS
Meaning
Logic 0 (signal not present)
Logic 1 (signal present)
or
Logic 1 but:
• Operating voltage of outputs is
• Compressed air supply not correct
• Pilot exhaust blocked
• Service case
BUS
outside permitted tolerance range
(DC 21.6V...26.4V)
or
or
or
6-5