Installation & Operation Manual Proven Quality since 1892
ECON actuator Fig. 7907, type ELA80
–
3000
Rev.19
–
April 2, 2021
42
8
TROUBLE SHOOTING
The following instructions are listed in the order of the most common difficulties encountered
during the installation and start-up.
►
The actuator does not respond
•
Visually inspect the actuator and check if no damage has occurred during shipping and handling of
the actuator.
•
Verify the line voltage supplied to the actuator; it must match with the rating on the actuator
’
s
nameplate
•
Compare and check the internal wiring with the supplied wiring diagram of the actuator
•
Check the limit switch cams
►
The actuator is supplied with power but does not operate
•
Verify the line voltage supplied to the actuator; it must match with the rating on the actuator
’
s
nameplate.
•
Make sure that the actuator output torque is greater than the required valve torque
•
Check the limit switch cams
•
Check if the torque switches have not been tripped
•
Check the mechanical travel stop adjustment
•
Check if the rotating direction matches (According to the applicable standards, valves and actuators
must open in counter-clockwise direction)
•
Check the internal wiring
•
Check for any corrosion and condensation. Electrical or mechanical devices may have been
affected
•
Verify if coupler/bracket is correctly installed and may not block the actuator rotation
►
Actuator runs erratically
•
Check the ambient temperature
•
Verify that the duty cycle has not been exceeded
•
Check the position of the manual override lever
►
Optional Equipment(s)
1) Potentiometer
•
Check the resistance value
•
Check the potentiometer gear for jamming
•
Check the ZERO and SPAN calibration and confirm input/output signal
•
Check the board for any damage
2
) Current Position Transmitter
•
Verify the input signal
•
Check the configuration of the dip switches
•
Check the board for any damage
