YASKAWA AC Drive GA700 High Performance Type Technical Manual

Prepare for Basic Auto-Tuning

You must input data from the motor nameplate or motor test report to do Auto-Tuning. Make sure that this data is available before you do Auto-Tuning.
For best performance, make sure that the drive input supply voltage is equal to or more than the motor rated voltage.

Note:
Better performance is possible when you use a motor with a rated voltage that is less than the input supply voltage (by 20 V for 200 V class models or by 40 V for 400 V class models). This is very important when you operate the motor at more than 90% of base speed, where high torque precision is necessary. If the input power supply is equal to the motor rated voltage, the drive output voltage will not be sufficient and performance will decrease.
Push on the keypad to cancel Auto-Tuning.
If a Safe Disable input signal is input to the drive during Auto-Tuning, Auto-Tuning measurements will not complete successfully. If this occurs, cancel Auto-Tuning, then do it again.
Table 1 shows the status of multi-function input/output terminals during Auto-Tuning.

Table 1. Status of Input/Output Terminals during Auto-Tuning
Auto-Tuning Type	Mode		Multi-Function Input	Digital Output
Induction Motor Auto-Tuning	Rotational	Rotational Auto-Tuning	Disabled	Functions the same as during usual operation.
	Stationary	Stationary Auto-Tuning 1	Disabled	Keeps the status at the start of Auto-Tuning.
	Stationary	Line-to-Line Resistance	Disabled	Keeps the status at the start of Auto-Tuning.
PM Motor Auto-Tuning	Rotational	Z-Pulse Offset (Pole Position)	Disabled	PRG: 01028 and earlier: Keeps the status at the start of Auto-Tuning. PRG: 01029 and later: Functions the same as during usual operation.
	Rotational	Rotational (Ld, Lq, R, back-EMF)	Disabled	Functions the same as during usual operation.
	Stationary	Manual Entry w/ Motor Data Sheet	Disabled	Keeps the status at the start of Auto-Tuning.
		PM Stationary Auto-Tuning	Disabled	Keeps the status at the start of Auto-Tuning.
		PM Stationary Auto-Tuning for Stator Resistance	Disabled	Keeps the status at the start of Auto-Tuning.
EZ Tuning	Stationary	Motor Parameter Setting	Disabled	Keeps the status at the start of Auto-Tuning.
EZ Tuning	Stationary	Line-to-Line Resistance	Disabled	Keeps the status at the start of Auto-Tuning.
ASR and Inertia Tuning	Rotational	Inertia Tuning	Disabled	Functions the same as during usual operation.
		ASR (Speed Regulator)	Disabled	Functions the same as during usual operation.
		Deceleration Rate Tuning	Disabled	Functions the same as during usual operation.
		KEB Tuning	Disabled	Functions the same as during usual operation.

Warning

Crush Hazard

Wire a sequence that will not let a multi-function output terminal open the holding brake during Stationary Auto-Tuning.

If the holding brake is open during Stationary Auto-Tuning, it can cause serious injury or death.

Warning

Sudden Movement Hazard

Before you do Rotational Auto-Tuning, disconnect the load from the motor.

The load can move suddenly and cause serious injury or death.

Warning

Injury to Personnel

Rotational Auto-Tuning rotates the motor at 50% or more of the motor rated frequency. Make sure that there are no issues related to safety in the area around the drive and motor.

Increased motor frequency can cause serious injury or death.

Warning

Electrical Shock Hazard

During Auto-Tuning, the motor will receive high voltage when the motor is stopped. Do not touch the motor until Auto-Tuning is complete.

If you touch a motor that is energized, it can cause serious injury or death.