Yaskawa Large Capacity Sigma II Series User Manual

Page 70

3.1 Two-step Trial Operation

3-7

Operating Procedure in Speed Control Mode: Set Pn000.1 to 0

Standard speed control setting is described here.

1. Gradually increase the reference speed input (V-REF, CN1-5) voltage. The servomotor

will rotate.

2. Check the following items in Monitor Mode. See 6.1.7 Operation in Monitor Mode.

• Has the reference speed been input?
• Is the motor speed as designed?
• Does the reference speed coincide the actual motor speed?
• Does the servomotor stop when the speed reference is 0?

3. If the servomotor rotates at extremely slow speed with 0 V specified for the reference

voltage, correct the reference offset value as described in 6.2.3 Automatic Adjustment of
the Speed and Torque Reference Offset or 6.2.4 Manual Adjustment of the Speed and
Torque Reference Offset.

4. Reset the parameters shown below to change the motor speed or direction of rotation.

Un000

Actual motor speed

Un001

Reference speed

Pn300

Speed Reference Input Gain
See 4.2.1 Speed Reference.

Pn000.0

Rotation Direction Selection
See 4.1.1 Switching Servomotor Rotation
Direction.

SERVOPACK

Reference
voltage

Servomotor

Servomotor rotates
at a speed proportional
to the reference voltage.

(CN1-5)

(CN1-6)

V-REF