A-T Controls Triad Controls WE-17500 Manuel d'installation et d'utilisation - Page 13
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8. Troubleshooting
Problem
Actuator does not
respond or operate
Torque switch tripped
Unable to manually
operate with
handwheel
Actuator performance
is erratic
A-T Controls product, when properly selected, is designed to perform its intended function safely during its useful life. However, the purchaser or user of
A-T Controls products should be aware that A-T Controls products might be used in numerous applications under a wide variety of industrial service
conditions. Although A-T Controls can provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser
/ user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of A-T Controls
products. The user should read and understand the installation operation maintenance (IOM) instructions included with the product and train its employees
and contractors in the safe use of A-T Controls products in connection with the specific application.
While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only. Because
A-T Controls is continually improving and upgrading its product design, the specifications, dimensions and information contained in this literature are
subject to change without notice. Should any question arise concerning these specifications, the purchaser/user should contact A-T Controls.
For product specifications go to
A-T Controls, Inc. • 9955 International Boulevard, Cincinnati, OH 45246 • Phone: (513) 530-5175 • Fax: (513) 247-5462 •
www.atcontrols.com
Cause
No power to actuator
Low voltage to actuator
Motor and supplied voltage are different
Wiring is loose
Wiring is incorrect
Limit switch or torque switch is tripped
Worm gear is jammed
Mechanical travel stop set prior to position limit switch
Foreign object between valve seat and ball/disc
Actuator is undersized
Lever is not fully engaged
Worm gear is jammed
Power is still on
Motor is overheating and in thermal overload
Motor is overheating and in thermal overload
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13
WE/XE/SE/XC Series
Quarter-Turn Electric Actuator
Installation & Maintenance Manual
Solution
Turn on power
Check power supply and wire gauge
Check nameplate voltage
Check connection to terminals
Wire according to supplied diagram
Manually operate to mid position
Refer to section on jamming
Reset travel stops
Clear objects
Check torques
Turn handle slowly while pulling lever
Refer to section on jamming
Turn off power
Check duty cycle – tune control loop
Check ambient temperature
www.atcontrols.com
IOM8011 REVISION 01
12/17/19