Flowserve ARGUS E25 MOD II - Correcting Faults and Disturbances

Argus E25 MOD II - Operating Instructions
29
Correcting faults and disturbances
DANGER
A damaged unit can cause an accident that results in very serious injuries
or possibly death.
➢ Replace defective units immediately.
Symptom
Cause
Countermeasure
Unit does not
switch on
Electric motor not func-
tioning
Check the connection to the motor for
damage; make sure it is correctly con-
nected.
Check the PCB for signs of damage; if
you find damage, contact the manu-
facturer. Replace the limit switch
plate.
Have the motor replaced by an author-
ised person.
End-position limit
switches are incorrectly
set or connected.
Reset the end-position limit switches
correctly. See the chapter “Repairs”.
The unit has
excessive re-
sistance to
movement.
Current draw too
high.
Magnetic brake not
functioning correctly.
Check the connection to the brake for
damage; make sure it is correctly con-
nected.
Magnetic brake defec-
tive.
Have the brake replaced by an author-
ised person.
Damage to the valve,
If the valve is damaged, contact the
manufacturer.
The actuator
does not
open/close fully.
End-position limit
switches are incorrectly
set.
Reset the end-position limit switches
correctly. See the chapter “Repairs”.
The valve is blocked
Please read the separate operating
instructions for the valve.
The unit
switches on, but
the operating
shaft does not
turn.
The operating shaft is
not correctly coupled.
Engage the operating shaft by gently
pulling and turning the shaft with the
engine off.
The timing belt has
failed.
Replace the timing belt. See the chap-
ter “Repairs”.
The unit’s reduction
gear has failed.
Replace the unit and contact the man-
ufacturer.
If you cannot correct the fault by following these instructions, please contact
the manufacturer.