Motion Imports Ltd....... Solutions for International Parts Sourcing (c)
6820 Meadowridge Court Suite B-7 Alpharetta, Georgia 30005 USA
We are an Authorized North American Motor Agent and Distributor (tm)
Click On The Photos below for Additional Panasonic AC Gear Motor or Servo Products Information
If you are looking for hard to find brand names, use the factory pages to locate the Manufacturer.
Stephen D. Selembo .Copyright ©
1998 ~ 2009 [Stephen D. Selembo] All rights reserved.
1 watt=1/750 hp - 3 watt=1/250hp - 6 watt=1/125hp - 15 watt=1/50hp - 25 watt=1/30hp
40 watt= 1/18.5hp - 60 watt=1/12.5hp - 90 watt=1/8hp
Panasonic geared motors:
- single phase 1 - 90W - single phase, quick reversible and brake motors
- three phase 25 - 90W
With a very unique and sophisticated technology Panasonic has achieved an acoustic noise reduction of 15db (compared to equal on the market products), this is a combination of the application of special helical gears, oil sealed grease structure and O-rings.
Panasonic has managed to strengthen the gear and bearing material as well as the gear module 2940N-Cm shaft torque (S-type) for the 90mm square size.
MTBF - 5000 hours guarantee using ball bearings with completely closed gear box.
The well-known quality and design of Panasonic geared motors internationally, has transformed them into the preferred motor and drive (in most countries), for applications where security, excellent MTBF are required, and breakdowns are to be held to a minimum.
Panasonic's wide selection range of, single-phase or three-phase voltage supply, break, speed control, quick direction reversal, and high torque, in a small package, make the search for the ideal induction motion control drive system your best choice.
Some features: Continuous Ratings - B Class Insulation - High Efficiency Low Noise - Instant Reverse Rotation - Small over run (< 10% of starting torque) - 30 min. Ratings - Added options - Dust/Water drop protection - Terminal box - Sealed connector for conduit.
Variable speed motors suits DVUS and DVSD controllers
( See The Speed Controls
Standard induction motors Quick reversible motors Brake motors
Quick Reversible Motors
A friction plate attached to the end of the rotor is constantly under friction via four cylindrical brake pads and springs. The resulting braking torque is continuously applied to the motor even during motor running. Some models have an S2 intermittent duty rating. Please refer to Data sheets for further details.
The brake is released by applying a voltage to the coil which attracts the armature against the springs. This creates a gap and frees the brake lining, allowing the
motor shaft to rotate. When the voltage to the coil is removed, the armature is forced back by the springs against the brake lining, stopping the motor.
Motor overrun is nominally 2-4 revolutions and is rated for 6 stop/start operations per minute.
The 6W motors offer thermal protection by means of impedance current limiting. All other motors have a thermal protection switch which should be externally
connected to the machines start/stop circuitry for safety reasons. This will operate at a temperature of 120șC.
The motor will not restart until the temperature has fallen below 80șC and the machines start/stop circuitry has been re-energised.
Let's discuss how the AC induction motor rotates, which involves the
interaction of magnetic fields of the rotor and stator. For this type of motor, the stator
has windings usually connected to the supply in one or three phase form. By applying a
voltage across the winding a radial rotating magnetic field is formed. The rotor typically
looks similar to a squirrel cage, which gives the AC induction motor one of its nick
names, 'the squirrel cage motor', if non-living things are capable of nick names. The
shape of the rotor forms conductive loops throughout its circumference. The stator has two
effects on the rotor. First it induces currents into the conductive loops. Once that is
complete, the magnetic field produces forces on
( See the Speed Control Pages)
These drives can control the frequency of the AC supply fed to the windings, making the induction motor a growing competitor in the controlled velocity market, where the DC motor previously dominated. One needs to insure that the motor is inverter rated before coupling the two together. The problem of slip will still exists, so one can have controlled speed but not precise speed, unless you include tachometer feedback and controls to accept this.
Sizing a Motor for the Job
Selecting the right motor for the job can sometimes be the most confusing aspect of a motion control problem. A priority list must be made as to what properties of the motor system are to be optimized. These properties may include, motor efficiency, motor torque, motor power, reliability, and of course, cost. Generally torque is the driving factor in a motor's weight, size and consequently cost, so knowing the torque requirements is paramount.
The key is to try an reduce the torque requirements of the motor by increasing the RPM or the mechanical advantage (gearing).
Is not the size that counts, its how you use it:
Bigger is not always better, the most important parameter to optimize in a motion system is torque. If you have an application that requires high torque at slow speed, a gear reduction unit of some sort can sometimes dramatically reduce the motor size or increase the motor's efficiency.
If you need high speed at low torque, a large motor can have excessive iron loss. 1. reduce the frequency (RPM) of the motor to reduce the eddy current loss or 2. reduce the size of the motor to reduce the hysteresis drag.