Servo motor changing direction

 

Servo motor with controller

Industrial sewing machines for the last hundred years, used to run on clutch motors, which are extremely strong and FAST! This is excellent for high speed production, but can be dangerous for those new to sewing. Most new industrial sewing machines have SERVO motors, which have adjustable speed levels, and use far less electricity, as well as being quieter.

Clutch motors are noisy, you turn the power on, and use a pedal that releases the brake on the constantly running at top speed motor, allowing the machine to run. It takes time and practice to operate machines safely, with the clutch motor, until the machine operator coordinates sewing, by pushing the pedal forward, and stopping by rocking the pedal back, to engage the brake again. 

Servo motors come in 220 or 110 electrical setups, clutch motors can be 110, 220, or 3 phase. You have to use the electrical setup your shop or home has available. In the USA, most homes have 110, though 220 can also be installed, but usually clothes dryers and stove/oven units use 220, so check your setup before buying motors.

Servo motors can be put on old industrial machines, but not all industrial sewing machines run the same direction. When we installed a new servo motor on the Yamato VC2700 coverstitch machine, we had to reverse the direction the motor ran, which is done through simple programming. 

DIRECTION OF ROTATION

On the servo motors I have had, we needed clockwise for the Yamato coverstitch machine. We needed counter clockwise for the Consew 225 compound feed.

TSINY is the brand on one of these servo motors

To get in programming mode-

Push P and + at the same time

Screen goes to P-00

To go into the parameter mode you need, consult your instruction sheet. Changing motor direction is parameter P-02, so push + until it shows P-02, 

Push P

Push + or- to get the parameter needed-

Reverse (counter clockwise) 0

Clockwise is 1

Press S to save.

Test

Servo motor control panel

Bernina 950 industrial with clutch motor
Notice on/off power switch motor runs constantly, when turned on. Machine is run by pushing the pedal, which releases the brake, which prevents the machine from running. Rocking pedal back, locks brake again.

Clutch motor with braking system