
B-65270EN/05 4.SERVO FUNCTION DETAILS
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(5) Invalid-parameter alarm when linear motors are used
The following invalid-parameter alarm checks are added when linear
motors are used (they are not issued for rotational motors).
Parameter error alarm
detail No.
Description
10043
No separate detector can be used for linear motors. Full-closed loop setting results
in an alarm being issued.
1123
If no AMR conversion coefficient is set, an alarm is issued. Even when the linear
encoder is not relocated after the motor is replaced, the AMR conversion
coefficients must be re-set, because initialization accompanying motor replacement
causes the AMR coefficients to be erased.
1393
The valid AMR offset data range is below :
-45 (degrees) and +45 (degrees) : (AMR60=0)
-60 (degrees) and +60 (degrees) : (AMR60=1)
If a value out of this range is specified in the parameter, an invalid-parameter alarm
is issued.
CAUTION
When an AMR conversion coefficient is not set, an
alarm is issued. If it is set, but incorrect, no alarm is
issued. In this case, the linear motor fails to drive
correctly immediately after it passes phase Z. It
may move within one pole-to-pole span (60 mm or
30 mm) in the worst case.
(6) Notes on using high-speed HRV current control or the cutting /rapid
velocity loop gain switching function
In general, a higher velocity loop gain (load inertia ratio) is set for a
linear motor than for a rotary motor. So, if high-speed HRV current
control and the cutting /rapid velocity loop gain switching function are
used at the same time to achieve an even higher velocity loop gain, an
overflow can occur in the internal value of the post-override velocity
load proportional (PK2V: parameter No. 1856 for Series 15i or No.
2044 for Series 30i, 16i, and so on). (The parameter error detail
number is 443
(*)
). In this case, set the parameter indicated below.
Whether an overflow occurs or not can be checked using Fig.
4.14.1(g).
(*)
Series 9096 and Series 90B0/C(03) and earlier editions do not
support the occurrence of parameter errors in velocity gain
override and the display of detail numbers.
#7 #6 #5 #4 #3 #2 #1 #0
1740 (FS15i)
P2EX
2200 (FS30i, 16i)
P2EX(#6) The format of velocity loop proportional gain (PK2V) is:
0: Standard format.
1: Converted. ← To be set