Yaskawa New AC Servo Motor Industrial Servo Motor 7.1A 850W SGMG-09A2AAB

The first time the Evergreen IM is powered up and receives communication on both the “High Voltage POWER” connections and “High Voltage SIGNAL” connections, it will operate its Rotation Sensing feature. With this feature the motor will automatically determine the proper operating direction of the blower wheel without any wiring to configure. During rotation sensing, the motor will turn on and off, running for a couple of seconds in each direction, sometimes but rarely more than twice before operating in the proper direction

 

 

 

Do not turn off the “High Voltage POWER” or the “High Voltage SIGNAL” to the motor until the motor continues to run in one direction for more than 60 seconds. During rotation sensing the motor may start and stop in both directions a maximum of four times if needed to determine the proper operating direction. If the proper direction cannot be determined after the forth sequence the motor will operate in the default direction of counter clock-wise

 

 

After the motor has been running in one direction for more than 60 seconds, the rotation sensing feature is locked out. The motor will continue to start in this direction without performing the rotation sensing feature even if the “High Voltage POWER” is disconnected.

 

 

If the final operating direction of the motor is not the proper direction for the blower wheel, go to the “Troubleshooting Guidelines” on page 34 “The motor is operating in the wrong direction”.