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2. OPERATION
Servo on
Command pulse
train input
Stop
When the servo-on signal (SON) is switched on, the servo ampli-
fier is ready to operate and the servo motor shaft is locked. (Servo
lock state)
If the shaft is not servo-locked, SON is not on. Check the external
sequence on the diagnostic display.
Checking procedure
Power on
Press MODE once.
Switch SON on.
• • • •
• When a pulse train is input from the
positioning unit, the ser vo motor
starts rotating. First, run the servo
motor at low speed and check the ro-
tation direction, etc. If the servo mo-
tor does not run as expected, re-
check the input signals.
• On the status display monitor, check the servo motor speed, com-
mand pulse frequency, load ratios, etc
• When machine operation check is over, confirm automatic opera-
tion with the positioning unit program.
• This servo amplifier has the real-time auto tuning function under
model adaptive control. Therefore, starting servo operation auto-
matically makes gain adjustment.
Using parameter No. 2, response level setting can be adjusted to
provide the optimum tuning according to machine rigidity.
Operation is suspended and stopped by:
1) Ser vo-on signal off ... The base circuit is shut off and the servo
2) Stroke end signal off ... The servo motor comes to a sudden stop
3) A l a r m o c c u r r e n c e ... When an alarm occurs, the base circuit
4) Emergency stop signal ... The base circuit is shut off and the
off
2– 13
This display appears
when SON switches on.
Forward
rotation
CCW
motor coasts.
and is servo-locked. The servo motor is
allowed to run in the opposite direction.
is shut off and the dynamic brake is op-
erated to bring the servo motor to a sud-
den stop.
dynamic brake is operated to bring the
servo motor to a sudden stop. The
display shows A.E6.
Reverse
rotation
CW
2
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