Troubleshooting Chart - DynaQuip DE153 Manuel D'installation, D'entretien Et D'utilisation

Installation, Maintenance and Operation Manual
MA SERIES

Troubleshooting Chart

Problem
Actuator Stops • Interrupted power. Check for broken or loose wires. Blown fuses or tripped breaker. Check switches.
Operating
• Tripped thermal overload caused by overheating (see overheating below).
• Motor burnout. Check to insure that correct voltage type is in use. Check all wiring against
• Malfunctioning valve. Check to insure that valve is operating properly.
Overheating • Excessive duty cycle. Check duty cycle (frequency of operation). DynaQuip electric actuators have a
• Low voltage "brown out". Measure line voltage to insure that actuator is receiving full rated
• Ambient temperature too high and/or heat being conducted through mounting hardware.
• Motor stall. Check for foreign obstruction. Check valve for proper operation. Check for increased
Low Torque • Low voltage or current. Check to insure that power supply is within listed specifications.
Output
• Overheating. See overheating above.
Incorrect Travel • Refer to "Cam Adjustment" in this manual.
or Operation
• Circuit not energized for full duration of cycle. Malfunction in control device (relay, switch, etc.),
• Out of phase for three phase actuators. Switch two incoming power leads.
Safety First
In the maintenance and operation of mechanical equipment, safety is a basic factor that must be considered at all times.
By using proper clothing, tools and procedures, serious accidents to you and your fellow workers can be prevented.
After inspecting the actuator keep the following information for future reference.
Electric Actuator Model Number ________________________________________________________________________________
Output Torque ________________________________________________________________________________________________
Voltage _______________________________________________________________________________________________________
Serial Number__________________________________________________________________________________________________
Date of Installation ____________________________________________________________________________________________
Location ______________________________________________________________________________________________________
Valve / Line Tag Number _______________________________________________________________________________________
Cause / Corrective Action
installation wiring diagrams.
duty cycle of 30% (actuator is energized no more than 30% of the time).
voltage.
torque load due to line pressure, etc.
inspect and correct or replace.
DynaQuip Controls 800-545-3636 www.dynaquip.com
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