Panasonic A4P Series Power Supply User Manual


 
150
Normal Mode Auto-Gain Tuning
(1) Turn to the normal auto-gain tuning 
mode from the monitor mode, by 
pressing the SET button, then press
the mode switching button three times.
For details, refer to P.81, "Structure 
of Each Mode" of Preparation.
(2) Enter the machine stiffness No. by pressing .
Display of rotational speed 
of the motor (initial display)
Machine stiffness No.
Machine stiffness No. (High)
Machine stiffness No. (Low)
Tuning finishes 
normally
Tuning error
Value changes toward the direction as 
an arrow shows by pressing and
changes toward the reversed direction 
by pressing .
(3) Shift to MONITOR/EXECUTION mode 
by pressing .
(4) Operation at MONITOR/EXECUTION mode
Keep pressing until the display 
changes to .
• Pin-29 of the connector, CN X5 to be 
Servo-ON status.
Keep pressing for approx.3sec, 
then bar increase as the right fig. shows. 
The motor starts rotating.
For approx. 15 sec, the motor repeats 
max. 5 cycles of CCW/CW rotation, 
2 revolutions each direction per one cycle. 
Tuning may finish before 5th cycles, 
however, this is not an error.
(5) Write the gain value to EEPROM to prevent 
them from being lost due to the power shut off.
Drive method
Ball screw direct connection
Ball screw + timing belt
Timing belt
Gear, Rack & Pinion
Others, low stiffness machine
Machine stiffness No.
8 to 14
6 to 12
4 to 10
2 to 8
0 to 8
Content
Display of error.
Value of parameter
related to gain (such as
SV/Pr10) is kept as same
as before the execution.
Cause
One of alarm, Servo-OFF or
deviation counter clear has
occurred.
Load inertia cannot be identi-
fied.
Measure
• Avoid an operation near the limit switch or home sensor switch.
• Turn to Servo-ON.
• Release the deviation counter clear
• Lower SV.Pr10 to 10 and SV.Pr11 to 50, then execute the
tuning.
• Adjust the gain manually. (Calculate the load inertia, and then
enter.)
How to Operate from the Console
<Caution>
Do not use the normal mode auto-gain tuning with the motor and driver alone. SV.Pr20 (Inertia ratio)
becomes to 0.
<Notes>