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F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Ch
ap
. 5
FUNCTION C
O
DES
Monitor for servo-lock control
Monitor item
LCD monitor
Function code
Remarks
Current position Menu #3
"3: OPR MNTR," Page 8, "P4"
Current position pulse
Upper digit: Z90
Lower digit: Z91
Only when the positioning device
is in operation (positioning
control is active), the LED
monitor displays these data.
When it is not in operation, the
monitor is zero-cleared.
Positioning error Menu #3
"3: OPR MNTR," Page 8, "dP4"
Positioning error pulse
Upper digit: Z94
Lower digit: Z95
The values on the LED monitor appear based on PG pulses 4-multiplied. Under servo-lock, no current positioning pulses or
positioning error pulses are displayed on the LED monitor.
Notes for using servo-lock
(1) Positioning control error
ero
If a positioning error exceeds the value equivalent to four rotations of the motor shaft when the inverter is servo-locked,
the inverter issues a positioning control error signal
ero
.
(2) Stop frequency (F25) under servo-lock
Since servo-lock starts when the output frequency is below the stop frequency (F25), it is necessary to specify such F25
data that does not trigger
ero
(that is, specify the value equivalent to less than 4 rotations of the motor shaft).
Stop frequency (F25)
<
(4
×
Gain (J97)
×
Maximum frequency)
(Example) When Gain (J97) = 0.01 and Maximum frequency (F03) = 60 Hz, specify F25 data
<
2.4 Hz.
(3) Enabling the servo-lock control disables the following:
• Operation controlled with a stop frequency
• Rotation direction limitation
Содержание FRENIC-MEGA
Страница 36: ...2 6 Unit inch mm Refer to Section 2 3 3 9...
Страница 208: ...5 89 Examples of Sequence Circuits 1 Standard sequence 2 Sequence with an emergency switching function...
Страница 356: ...MEMO...
Страница 358: ...Fuji Electric Co Ltd Fuji Electric Corp of America http www fujielectric com fecoa 2011 04 D11 D10...