SECTION 3. INSTALLATION
23
Note: When bit switch 6 is OFF a connection must be made between pins 5 and 6 of the
Drive I/O connector to enable the drive.
Tuning the BD Drive
The appropriate tuning procedure should be carried out on each axis. The procedures in this
section assume that you have completed the connection and test procedures provided in
Sections 2 and 3. The motor should be coupled to the load at this stage.
Tuning for use as a Velocity Amplifier
Use the following procedure to tune the drive.
Step 1 -
Set bit switches.
Step 2 -
Make sure the power to the drive is off and that the motor is held securely and the shaft is
free to rotate.
Step 3 -
Adjust the front panel controls as follows:
TIME CONSTANT Fully CCW
DAMPING Fully CCW
TACH GAIN Fully CW
Step 4 -
Apply zero velocity demand to the input by connecting both signal inputs (VEL1 and
VEL2) together.
Step 5 -
Switch on the power to the drive. Should the motor rotate, adjust the Balance
potentiometer in the opposite direction to the motor rotation until stationary.
If any fault LEDs illuminate, refer to the
Maintenance & Troubleshooting section.
Step 6 -
Set the velocity amplifier sensitivity by applying a signal of 20% of maximum input (2V for
±
10V operation) and adjusting the Tach Gain 20-turn potentiometer to give 20% of maximum
speed. Use the Tach monitor output (User I/O connector pin 7) to measure rotation speed.
Step 7 -
Reduce the input signal to zero to stop the motor.
Step 8 -
Rotate the Time Constant control clockwise until the motor shaft starts to oscillate
(characterized by a high-pitched ringing sound). Optimum drive performance is achieved at the
point when the motor first starts to ring. Do not allow the motor to oscillate for more than a
second or two.
Содержание BD-E Series
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