222
Special operation and speed control
(7) PID output suspension function (SLEEP function) (SLEEP signal,
Pr. 554, Pr. 575 to Pr. 577
)
The drive unit stops operation if the rotation speed after PID operation remains at less than the
Pr. 576 Output interruption
detection level
setting for longer than the time set in
Pr. 575 Output interruption detection time
. (In this condition, setting
Pr. 554
PID signal operation selection
= "0 to 3" coasts the motor (output shutoff) to a stop at SLEEP operation start, and setting "10
to 13" decelerates the motor at SLEEP operation start according to the set deceleration time (
Pr. 8
setting, etc.).) This
function can reduce energy consumption in the low-efficiency, low-speed range.
When the deviation (= set point - measured value) reaches the PID output shutoff cancel level (
Pr. 577
setting -1000%)
while the PID output interruption function is ON, the PID output interruption function is canceled and PID control operation
is resumed automatically.
While the PID output interruption function is ON, the PID output interruption (SLEEP) signal is output. At this time, the
Drive unit running (RUN) signal is OFF, and the PID control operating (PID) signal is ON.
For the terminal used for the SLEEP signal output, assign the function by setting "70" (positive logic) or "170" (negative
logic) in
Pr. 190
or
Pr. 192 (output terminal function selection)
.
* When the output rises to the output interruption cancel level during deceleration to a stop, output interruption gets cancelled, and the drive unit accelerates
again to continue PID control.
Pr. 576 Output interruption detection level
is invalid during deceleration.
Pr. 554
Setting
SLEEP Function
FUP Signal, FDN Signal
Y48 Signal
0 (Initial value)
Drive unit coasts to a stop at the
start of SLEEP operation
Only signal output
Only signal output
1
Signal stop by fault (E.PID)
2
Only signal output
Signal stop by fault
(E.PID)
3
Signal stop by fault (E.PID)
10
Drive unit decelerates to a stop
at the start of SLEEP operation
Only signal output
Only signal output
11
Signal stop by fault (E.PID)
12
Only signal output
Signal stop by fault
(E.PID)
13
Signal stop by fault (E.PID)
Rotation speed
Pr. 576
Pr. 577
- 1000%
RUN
Time
ON
OFF
SLEEP
Less than
Pr. 575
Pr. 575
or more
SLEEP period
PID
Cancel
level
When
Pr. 554
= "0 to 3", reverse action (
Pr. 128
= "20")
Deviation
Rotation speed
Deviation
When
Pr. 554
= "10 to 13", reverse action (
Pr. 128
= "20")
Pr. 576
Pr. 577
- 1000%
RUN
Time
ON
OFF
SLEEP
Less than
Pr. 575
Pr. 575
or more
SLEEP period
PID
Cancel
level
Decelerates
to a stop*
Содержание FR-D720-0.2K-G
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Страница 294: ...291 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...