Baldor Global TEFC Series Installation & Operating Manual

Baldor Global TEFC Series Installation & Operating Manual Manual pdf 14 page image

Installation & Operation 2-5MN409Coupled Start Up This procedure assumes a coupled start up. Also, that the first time start up procedure wassuccessful. Read and fully understand each of the steps in the following procedure before attempting tostart the motor.1. Disconnect and lockout the power source. Ensure no power is applied to the motor.2. After a successful uncoupled start, assemble the coupling and lubricate with the manufacturer’srecommended lubricant. Check to see that the coupling is not binding.3. After the coupling has been assembled and lubricated, repeat steps 11 through 14 under First TimeStart Up. Check to see that the driven equipment is not transmitting vibration back to the motorthrough the coupling or the base.4. Check to see that coupling guards and other protective enclosures are not blocking the ventilating airover the motor and exhaust openings.5. When alignment is correct and motor is properly lubricated, prepare for no load run uncoupledstart−up. The coupling should be uncoupled and a solo plate should be installed if required.6. Inspect the motor carefully. Make the initial start by following the regular sequence of startingoperations in the control instructions.7. After starting, check that the motor is running smoothly. If the motor shows excessive vibration, shutdown immediately and investigate. Check for coupling and key unbalance, lack of lubrication, footplanarity and structural resonance.RPM Max. Vibration Amplitude (Peak to Peak on Bearing Housing)3000−3600 Incl. .75 mil (.20 in/sec peak)1800−Slower 1.0 mil (.20 in/sec peak)Jogging and Repeated StartsRepeated starts and/or jogs can greatly reduce the life of an induction motor. If it is necessary torepeatedly start or jog a motor, check the application with your local Baldor District office.At ambient temperature, the motor is normally capable of making two starts in succession and coasting torest between starts.The motor is also capable of making one start at its rated load operation temperature. For cooling timerequired before additional starts can be made consult your local Baldor District office or the motor startingnameplate if one is provided.If more starts than defined above are attempted in shorter period of time, severe damage to the motorelectrical windings and rotor may result.The starting conditions listed above apply only if the inertia of the connected load, the load torque duringacceleration, the applied voltage, and the starting method are those for which the motor was designed.For starting situations not covered here, consult your local Baldor District office before proceeding. Referalso to the motor nameplate which may list starting conditions.This Manual:http://www.manuallib.com/baldor/mn409-large-ac-motors-handbook.html