Valves - Festo FB16 Electronic Manual

VIFB16 - 03/05
LED Switching position of
valve solenoid coil
Yellow out Basic position
Yellow alight • Switch position
• basic position
Fig. 5/4: LED display – switching status of solenoid valve coil
5-6
5. Diagnosis/error treatment

Valves

There is a yellow LED for each valve solenoid
coil on the valve bridges. This LED shows the
switching status of the valve solenoid coil.
or
Meaning
Logic 0 (no signal)
Logic 1 (signal applied)
Logic 1 but:
• Operating voltage of outputs is
outside permitted tolerance range
(DC 21.6V...26.4V)
or
• compressed air supply not correct
or
• pilot exhaust blocked
or
• Servicing required
yellow LEDs
0506b