Operation using reference input – Yaskawa FSP Amplifier User Manual

Page 62

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FSP Amplifier User’s Manual

Chapter 4: Trial Operation

4-7

Set /S-ON (CN1-40) to 0V. If everything is normal, the servomotor
will turn ON and the LED indicator on the front panel will display
as shown. If an alarm display appears, take appropriate action as
described in 9.2 Troubleshooting.

Note: If there is noise in the reference voltage for speed control, the “-” on the left of the 7-segment LED may

flash.

„

Operation Using Reference Input

The operating procedure here depends on the parameter settings (control
mode selection at memory switch Pn000.1). Use the following procedure
for operations with speed and position control.

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

This description applies to the standard speed control setting.

FSP Amplifier

CN1-6

Servomotor

CN1-5

V-

REF

SG

Servomotor rotates at a speed proportional
to the reference voltage.

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 7.1.6 Operation in

Monitor Mode.

Un000 Actual

motor

speed

Un001 Reference

speed

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

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

the reference voltage, correct the reference offset value as described in
7.2.3 Automatic Adjustment of the Speed and Torque Reference Offset
or 7.2.4 Manual Adjustment of the Speed and Torque Reference Offset.

4. Reset the following parameters to change the motor speed or direction

of rotation.

Pn300

Sets the reference speed input gain.
See 5.2.1 Speed Reference.

Pn000.0

Selects the rotation direction.
See 5.1.1 Switching Servomotor Rotation
Direction.

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