208
9. (F) Settings for Acceleration/Deceleration
9.5 Minimum motor speed frequency at the motor start up
9.5
Minimum motor speed frequency at the motor start
up
Set the frequency where the PM motor starts running.
Set the deadband in the low-speed range to eliminate noise and offset deviation when setting a frequency with analog input.
Starting frequency setting (Pr.13)
• The frequency where the PM motor starts running can be set in the range of 0 to 60 Hz.
• When the frequency command specifies the frequency less than the one set in
Pr.13 Starting frequency
, the PM motor
is stopped.
When the frequency command specifies the frequency equal to the set frequency or higher, the PM motor accelerates
according to the setting of
Pr.7 Acceleration time
.
NOTE
• Under induction motor control (under V/F control, Advanced magnetic flux vector control, Real sensorless vector control, and
Vector control), the output starts at the frequency set in
Pr.13
. Under PM sensorless vector control, the output always starts
at 0.01 Hz.
• The inverter does not start if the frequency setting signal has a value lower than that of
Pr.13
. For example, while
Pr.13
= 20
Hz, the inverter output starts when the frequency setting signal reaches 20 Hz.
Parameters referred to
Pr.2 Minimum frequency
Pr.7 Acceleration time
Pr.
Name
Initial value
Setting range
Description
13
F102
Starting frequency
Minimum frequency /
minimum rotations per minute
0 to 60 Hz
Set the frequency where the motor starts
running.
CAUTION
• Note that when
Pr.13
is set to a value equal to or lower than
Pr.2 Minimum frequency
, simply turning ON the start signal
runs the motor at the frequency set in
Pr.2
even if the command frequency is not given.
PM
PM
PM
Output
frequency
(Hz)
Set frequency
Output
frequency
Output from 0.01Hz
Time
60
Pr.13
Setting range
STF
ON
0
Содержание FR-E800
Страница 17: ...16 1 Introduction 1 3 Related manuals MEMO ...
Страница 51: ...50 2 Basic Operation 2 8 I O terminal function assignment MEMO ...
Страница 89: ...88 3 Parameters 3 4 Parameter list by function group number MEMO ...
Страница 135: ...134 5 Speed Control 5 9 Troubleshooting in the speed control MEMO ...
Страница 153: ...152 6 Torque Control 6 7 Troubleshooting in torque control MEMO ...
Страница 195: ...194 8 E Environment Setting Parameters 8 18 Current average value monitor signal MEMO ...
Страница 237: ...236 10 D Operation Command and Frequency Command 10 6 Operation by multi speed setting MEMO ...
Страница 339: ...338 13 T Multi Function Input Terminal Parameters 13 9 Start signal operation selection MEMO ...
Страница 455: ...454 16 G Control Parameters 16 13 Speed smoothing control MEMO ...
Страница 481: ...480 18 Appendix 18 4 Parameters functions and instruction codes under different control methods MEMO ...