Yaskawa Sigma-5 User Manual: Operation of Digital Operator - Manual (Page 111)

3.2 Operations
3-77
9
head1
3
Utility Function Mode
8
If readjustment is required, select the digit
with the
or Key or change the
FF LEVEL and FB LEVEL with the or
Key. Check the response.
If readjustment is not required, go to step 9.
Note: The higher the FF LEVEL, the posi-
tioning time will be shorter and the
response will be better. If the level is
too high, however, overshooting or
vibration may occur. Overshooting will
be reduced if the FB LEVEL is
increased.
„ If Vibration Occurs
• If vibration occurs, press the Key.
The SERVOPACK will automatically
detect the vibration frequencies and make
notch filter or an anti-resonance control set-
tings. When the notch filter is set, “NF1”
and “NF2” are displayed on the bottom
row. When the anti-resonance control is set,
“ARES” will be displayed on the bottom
low.
„ If Vibration Is Large
• Even if the Key is not pressed, the
SERVOPACK will automatically detect the
vibration frequencies and make notch filter
or anti-resonance control settings.
Notes:
• If the FF LEVEL is changed when the ser-
vomotor is in operation, it will not be
reflected immediately. The changes will be
effective after the servomotor comes to a
stop with no reference input and then the
servomotor starts operation If the FF
LEVEL is changed too much during opera-
tion, vibration may occur because the
responsiveness is changed rapidly when the
settings become effective.
• The message “FF LEVEL” flashes until the
machine reaches the effective FF LEVEL.
If the servomotor does not stop within
approximately 10 seconds after changing
the setting, a timeout will occur. The setting
will be returned to the previous value.
(cont’d)
Step Display after Operation Keys Operation
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