Environnement AF22e, Technical Manual, Page: 106 / 118

Environnement
S.A
AF22e
Duplication prohibited
APRIL 2016
5–8
Alarm message
(Min./Max. values)
Possible cause(s) Possible corrective action(s)
Supply fault
Min. value: N.A.
Max. value: N.A.
– Supply board is faulty.
–
Measurement board microcontroller
is faulty.
– Abnormal power consumption is
detected.
–
24 V power supply is not stable.
– Replace supply board.
–
Replace measurement board.
– Check that all devices as solenoid
valves, laminar heating, shutter, or
other external devices are connected
to 24 V external relay output.
–
Replace power supply.
5 V sensor fault
Min. value: 4.75 V
Max. value: 5.25 V
– Power supply board is faulty.
–
5 V sensors are faulty.
– Replace power supply board.
–
Check all pressure and temperature
sensors.