Anaheim Motor parts ACPMxI Gear Motor Series Users Guide

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AC Induction Motor FAQ
What happens if I remove the internal brake mechanism of an AC induction reversible motor? Can 
I then use it as a regular AC induction motor?
  An AC reversible motor is an AC induction motor, but is made different.  An AC reversible motor 
has it coils wound specifi cally for the application of a quick reversal movement.  The AC reversible motor 
has it primary and secondary coils altered.  Having a different ratio between the primary and secondary 
coils, its starting torque characteristics will be changed.  This change makes it have the instant reversing 
characteristics.  Moreover, the capacitor has been changed also to increase the starting torque.  Therefore, 
removing just the internal brake mechanism won’t help make the reversible motor run continuously.
Why do AC induction reversible motors have a 30 minute rating?
  Due to the construction and the purpose of the AC reversible motor, it won’t allow running more 
than 30 minutes.  The reason being is that a reversible motor requires a higher input power than an AC 
induction motor.  The higher input power is used for the increased starting torque and instant reversing 
characteristics.  There are higher losses in an reversible motor than a regular AC induction motor.  Running 
the motor for more than 30 minutes can cause the motor to burn up.  Therefore, for maximum performance, 
it is recommended for 30 minutes of use at a time. 
Can I run an AC induction reversible motor longer than 30 minutes?
  You can increase the running time of the motor if heating considerations are taken care of.  The 
motor casing should be below 80 degrees Centigrade.
Can I run an AC induction reversible motor 30 minutes in one direction then 30 minutes in the other?
  The 30 minute rating is for the total time that the motor is on, regardless of direction.
Can I use a solid state relay (SSR) to switch the direction?
  When using a SSR to switch direction, please allow at minimum of 100ms before switching to the 
other direction.
Can I use a capacitor other than the one it came with?
  The capacitor that came with the motor was chosen for optimum stability and performance.  When 
using another capacitor, use the recommended capacitance and voltage values when obtaining another 
capacitor.  The use of non-polarized capacitors should be used.  For example, Electrolytic capacitors 
should not be used.
What happens if I use a different capacitor value other what has been given?
  When using a different capacitor value, the AC induction motor may or may not start up.  Erratic  
						

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ANAHEIM AUTOMATION
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transmitted, transcribed, stored in a retrieval system, or translated into any language, in any form or by 
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written permission of Anaheim Automation, 910 E. Orangefair Lane, Anaheim, CA 92801. 
DISCLAIMER
Though every effort has been made to supply complete and accurate information in this manual, the 
contents are subject to change without notice or obligation to inform the buyer. In no event will Anaheim 
Automation be liable for direct, indirect, special, incidental, or consequential damages arising out 
of the use or inability to use the product or documentation.  
Anaheim Automation’s general policy does not recommend the use of its’ products in life support applications 
wherein a failure or malfunction of the product may directly threaten life or injury.  Per Anaheim Automation’s 
Terms and Conditions, the user of Anaheim Automation products in life support applications assumes all 
risks of such use and indemnifi es Anaheim Automation against all damages.
LIMITED WARRANTY
All Anaheim Automation products are warranted against defects in workmanship, materials and construction, 
when used under Normal Operating Conditions and when used in accordance with specifi cations.  This 
warranty shall be in effect for a period of twelve months from the date of purchase or eighteen months 
from the date of manufacture, whichever comes fi rst. Warranty provisions may be voided if products 
are subjected to physical modifi cations, damage, abuse, or misuse.
Anaheim Automation will repair or replace at its’ option, any product which has been found to be defective 
and is within the warranty period, provided that the item is shipped freight prepaid, with previous authorization 
(RMA#) to Anaheim Automation’s plant in Anaheim, California. 
TECHNICAL SUPPORT
If you should require technical support or if you have problems using any of the equipment covered by this 
manual, please read the manual completely to see if it will answer the questions you have. If you need 
assistance beyond what this manual can provide, contact your Local Distributor where you purchased the 
unit, or contact the factory direct. How does power supply fl uctuation affect AC Induction motor?
 The fl uctuations of voltage will affect the torque output of the motor.  The torque developed by an 
AC induction motor is proportional to the square of the applied voltage.
For example:
Rated Voltage: 100VAC
Stall Torque, Tm: .5 Nm
Starting Torque, Ts: .25Nm
The voltage is then reduced to 75VAC:
New Tm: [.5*(75/100^2]=.375 Nm
New Ts:[.25*(75/100)^2]=.1875 Nm
If the motor is going to experience power fl uctuations, please take it into account when choosing an AC 
induction motor.