User Manual Of EL7-EC** AC Servo
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6.2.3 Auxiliary function to determine inertia on front panel
Auxiliary Function
A F_ G L
Inertia
measuring
Operation
G - - - -
Initialization
Press ‘S’ to enter
S
Press ‘
◀
’ to start inertia
measuring.
SrUon
will be
displayed.
S r U o n
E r r o r
Error might occur if
‘
◀
’is pressed when
driver is enabled.
When
SrUon
is
displayed
Press ‘▲’or
‘▼’to start
moving in both
direction. Result
can be obtained
once completed.
P 4 0 0
n 4 0 0
▲
▼
G 2 0 0
G xxx
，xxx = inertia value.
CW
CCW
Steps:
1
、
Set the trial run velocity Pr6.04. Value set shouldn’t be too large, please keep it at
around 400 r/min.
2
、
Enter
AF_GL
for auxiliary function – Inertia ratio determination into front panel
3
、
Press S once to enter. “
G---
” will be displayed on the front panel.
4
、
Press once to display “
StUon
”
5
、
Press or once to start to calculate the inertia.
6
、
After the calculation is done, G xxx will be displayed and xxx is the value of inertia
calculated.
7
、
Write the corresponding value into Pr0.04. Please refer to for parameter saving
on servo driver.
6.2.4 Inertia measuring using Motion Studio
1. Start Motion Studio and maneuver to inertia measuring page under performance
tuning. Set trial run velocity Pr6.04 and acc-/deceleration time Pr6.25, click on ‘Upload’
to upload parameters to servo driver.
2. Tick “Prohibit external enabling” and click on “servo on”.
