Rev: 09.2017
TAF Pre-Engineered Skid IOM
30
6. Fault Conditions
There are two different types of faults conditions:
1.
A Minor Fault is a condition in which the filter can still continue operating in
the current condition, but has a fault that needs to be corrected. The red
Reset Fault light will blink during this condition.
2.
A Major Fault is a condition in which the filter cannot continue to operate and
a self-cleaning/flush cycle cannot be operated properly. They system will be
shut-down (filter and pump if included). The red Reset Fault light will glow
continuously during this condition.
Minor Fault indication is caused by a mechanical fault which is the failure of the
filter suction scanner (SAF, EBS and Omega filter systems) to complete its travel
(monitored by limit or proximity switches). The Minor Fault condition will continue
until a self-cleaning/flush cycle is initiated, at which time the Minor Fault will
become a Major Fault as a self-cleaning/flush cycle cannot be started with this fault
occurring.
There are two standard filter Major Faults and one Major Fault which can occur
when a suction pump is used during the self-cleaning/flush cycle:
1.
Differential Pressure Fault - the self-cleaning/flush cycle has not been able to
clear the differential pressure for a programmed period of time (factory set at
240 seconds). The differential pressure must be cleared by power flushing
the filter system or by manually cleaning the filter element(s). The fault can
then be cleared by pushing the Fault Reset button.
2.
Overload Fault - the motor current has exceeded the setting on the overload.
Pushing the reset button alone will not affect this fault condition. The
overload will have to be reset on the device and then the Fault Reset button
can be pushed to clear the fault condition.
3.
Suction Pump Fault - the flow switch placed after the suction pump did not
engage after a period of time or flow dropped off during the self-
cleaning/flush cycle. The suction pump must be inspected and repaired if
necessary or flow restrictions to the pump fed must be removed. Once the
flow conditions are corrected, the Fault Reset button can be pushed to clear
the fault condition.
The Major Alarm dry contact will only be activated during a Major Alarm condition
and not by Minor Fault conditions.
