Safety First - DynaQuip MA Serie Manual De Instalación Mantenimiento Y Operación

Storage
Store in climate controlled environment to prevent condensation. If stored out-doors internal heaters must be
installed and functioning.
NOTE: After Installation it is the customers responsibility to be certain that all set screws, terminal screws, housing
bolts and mounting bolts are tight and that all limit switches, poten-tiometers and position transmitters are calibrated
to the individual settings required for their specific application. See page 4 for modulating control interface
instructions.
Troubleshooting
PROBLEM CAUSE/CORRECTIVE ACTION
Actuator stops •
operating
•
•
•
Overheating •
•
•
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Low torque output •
•
Incorrect travel •
or operation
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•

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.
Actuator Model Number
Output Torque
Voltage
Serial Number
Date of Installation
Location
Valve/Line Tag Number
Interrupted power. Check for broken or loose wires, blown fuses or tripped breaker.
Check switches.
Tripped thermal overload caused by overheating (see "Overheating" below).
Motor burnout. Check to insure that correct voltage has been applied. Check all wiring
against installation wiring diagrams.
Malfunctioning valve. Check that valve is operating properly.
Excessive duty cycle. Check duty cycle (frequency of operation). DynaQuip electric
actuators have a duty cycle of 30% (actuator is energized no more than 30% of the time).
Low voltage "brown out" . Measure line voltage to insure that actuator is receiving full rated
voltage.
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 torque load due to line pressure, etc.
Low voltage or current. Check to insure that power supply is within listed specifications.
Overheating. See "Overheating" above.
Refer to "Cam Adjustment" in this manual.
Circuit not energized for full duration of cycle. Malfunction in control device
(relay, switch, etc.); inspect and correct or replace.
Out of phase for three phase actuators. Switch two incoming power leads.
3