Festo 8079862, Руководство по эксплуатации

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Filtration Learning System Maintenance and troubleshooting
© Festo Didactic 696684
59
12.2 Error in the piping system and tanks
The following table shows errors that can be simulated using the manual valves or that occur due to
incorrect operation.
Location Error /
Disturbance variable /
Danger potential What is the effect of the
error, disturbance
variable, or danger? What causes errors? How can I detect and
prevent errors?
Error in piping system and tanks
Waste water tank VA1 Overflow When filling from the
upstream station, the
overflow protection is
not effective Float switch without
function or blocked The float switch is not
movable
Manual valve VV2 Supply to the
downstream station No supply to
downstream station
available during
pumping Valve VV2 is closed Visual inspection
Manual valve VV1 Inlet for waste water
tank VA1 No supply to the storage
tank during filling Valve VV1 is closed Visual inspection
12.3 Error in the electrical system
The following table shows errors that can be simulated using the electrical components or that can occur
due to incorrect operation.
Location Error /
Disturbance variable /
Danger potential What is the effect of the
error, disturbance
variable, or danger? What causes errors? How can I detect and
prevent errors?
Electrical faults
19" frame
back/underside Power supply faulty No electrical function Unplug the IEC power
cable or remove the
micro fuse Observe the light at the
power supply switch or
measure the voltage
I/O terminal No switching function 24 VDC outputs do not
switch, sensors are not
displayed by LEDs Unplug the SysLink cable
from the I/O terminal Visual inspection
Pump PL1 Delivery rate too low Flow rate too low On the motor controller,
exchange ports 1 and 2
of the pump Visual inspection
Proportional valve VC1 Valve is not activated Air is not blown into the
filter 2W solenoid valve –QM4
is not activated Visual inspection
SysLink I/O terminal Signal statuses faulty Switching signals are not
displayed or are
displayed incorrectly Slide switch is in
position NPN instead of
PNP Visual inspection
with data sheet, observe
representation