5 auto-tuning – Yaskawa L1000E AC Drive Technical Manual for CIMR-LE Models for Elevator Applications User Manual

Page 112

4.5 Auto-Tuning

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YASKAWA ELECTRIC SIEP YAIL1E 01A YASKAWA AC Drive L1000E Technical Manual

WARNING! Sudden Movement Hazard. If installed, do not release the mechanical brake during Stationary Auto-Tuning. Inadvertent

brake release may cause damage to equipment or injury to personnel. Ensure that the mechanical brake release circuit is not

controlled by the drive multi-function digital outputs.

Note: 1. Rotational Auto-Tuning T1-01 = 0 (recommended method)

" Rotational Auto-Tuning provides more accurate tuning results compared to Non-Rotating Auto-Tuning.

" Perform Rotational Auto-Tuning when the motor can be uncoupled from the elevator mechanical system (remove ropes from
traction sheave).

" Make sure to release the mechanical brake (if installed) for Rotational Auto-Tuning methods.

Stationary Auto-Tuning T1-01 = 1, 2, or 4 (alternate method)

" Perform Stationary Auto-Tuning when the motor and mechanical system cannot be uncoupled.

" Make sure that the mechanical brake remains applied for all Stationary Auto-Tuning methods.

2. When using a motor contactor, make sure it remains closed during the Auto-Tuning process.
3. Ensure H1 and H2 signals are ON when performing Auto-Tuning.
4. A digital input programmed for Baseblock (H1- = 8/9) must be set so that the drive is not in a baseblock condition during Auto-

Tuning.

5. Ensure the motor is securely mounted and bolted in place prior to Auto-Tuning.
6. To cancel Auto-Tuning, press the STOP key on the digital operator.
7. Make sure motor nameplate data is readily available before Auto-Tuning the drive. Auto-Tuning requires the user to input data from

the motor nameplate or motor test report.

8. When performing Auto-Tuning for motor 2, make sure motor 2 is connected to the drive output terminals.
9. For best performance, the drive input power supply voltage should be greater than the motor rated voltage.
10. Improved performance is possible when using a motor with a base voltage that is 10% less than the input supply voltage. This is

particularly important when operating the motor above 90% of base speed, where high torque precision is required.

WARNING! Sudden Movement Hazard. System may start unexpectedly upon application of power, resulting in death or serious injury.

Clear all personnel from the drive, motor and machine area before applying power. Secure covers, couplings, shaft keys and machine

loads before applying power to the drive.

Table 4.10

describes digital input and output terminal operation while Auto-Tuning is executed.

Table 4.10 Digital Input and Output Operation During Auto-Tuning

Note: When using a PM motor for the first time or when replacing the drive or PM motor, be sure to set the motor parameters properly

and check that the speed detection functions properly prior to operation. Using a PM motor requires setting the encoder offset
correctly and entering motor data. Perform Encoder Offset Auto-Tuning after replacing the motor, encoder, or drive. Insufficient
torque may cause the elevator car to move in the direction of the load or cause the motor to behave erratically (reverse operation,
stand still, sudden accelerations, etc.). For more information, refer to the instruction manual included with the motor.

Motor Type

Auto-Tuning Type

Digital Input

Digital Output

IM Motor

Rotational Auto-Tuning