Electric motor control damper
actuator – it has 3 phase induction motor its
operate the lever this actuator has primary and secondary gear secondary gear
also known as worm gear at front side there is indicator which shows the
position of damper at the back side wheel and handle is given if we want to
operate the actuator manually then push the handle clockwise this thing
bypasses the motor now we can easily set the position of damper as per
requirement through the wheel in this actuator there is an advantage that we
can adjust the damper at 30% , 40% etc but in most pneumatic actuator(with single solenoid
coil) we operates only either fully open or fully close condition
Electric motor damper actuator has 6 limit
switch as described further
2 limit switch for full open (1 for retendency
in case failure)
2 limit switch for full close condition (1 for
retendency in case failure)
1 for open torque (when we open the damper for
flow if there is obstruction like material jamming or some material struck
around)
1 for close torque (when we close the damper if there is obstruction like
material jamming or some material struck around foreign material coming
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