221
Special operation and speed control
(5) PID automatic switchover control
(Pr. 127)
The system can be started up without PID control only at a start.
When the speed is set to
Pr. 127 PID control automatic switchover speed
, the drive unit starts up without PID control from a
start until rotation speed is reached to the set speed of
Pr. 127
, and then it shifts to PID control. Once the system has
entered PID control operation, it continues PID control even if the rotation speed falls to or below
Pr.127
.
(6) Selecting operation to be performed at the output of Upper limit (FUP) signal, Lower limit (FDN)
signal, and PID deviation limit (Y48) signal (
Pr. 554
)
You can select the operation to be performed at the detection of upper, lower and deviation limit for the measured value
input. With
Pr. 554 PID signal operation selection
, signal output or signal alarm stop (E.PID) can be selected for
each of upper limit output (FUP) signal, lower limit output (FDN) signal, and PID deviation limit (Y48) signal.
NOTE
Changing the terminal function using any of
Pr. 178 to Pr. 182, Pr. 190, Pr. 192,
and
Pr. 197
may affect the other functions.
Set parameters after confirming the function of each terminal.
When the
Pr. 267
setting was changed, check the voltage/current input switch setting. Different setting may cause a
fault, failure or malfunction. (
for setting.)
Make sure to perform calibration after changing the voltage/current input signal assigned to the terminal 4 with
Pr. 267
setting and the voltage/current input switchover.
Pr. 554
Setting
FUP Signal, FDN Signal *
Y48 Signal *
SLEEP Function
0 (Initial value)
Only signal output
Only signal output
Drive unit coasts to a stop at the
start of SLEEP operation
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
Only signal output
Only signal output
Drive unit decelerates to a stop
at the start of SLEEP operation
11
Signal stop by fault (E.PID)
12
Only signal output
Signal stop by fault
(E.PID)
13
Signal stop by fault (E.PID)
* When the settings for
Pr. 131 PID upper limit
,
Pr. 132 PID lower limit
, and
Pr. 553 PID deviation limit
, which corresponds with FUP, FDN, and Y48 signals,
are "9999" (no function), the signal is not output, or the alarm stop is not performed.
Rotation speed
Pr. 127
STF
Time
PID
Without
PID control
PID control
Содержание FR-D720-0.2K-G
Страница 45: ...34 MEMO ...
Страница 293: ...290 MEMO ...
Страница 294: ...291 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...
