Power Electronics SD300 Series User Manual

SD300
POWER ELECTRONICS
152
DESCRIPTION OF PROGRAMMING PARAMETERS
Screen
Description
Default
value
Range
Function
Set on
RUN
Cn.70
Speed search
mode
selection
Flying
Start1
Flying
Start1
Flying
Start2
Note: comes from the previous page
OPT.
DESCR.
FUNCTION
1
Flying
Start2
The speed search is
carried out as it controls
the ripple current which is
generated by the counter
electromotive force during
no-load rotation. This
mode establishes the
direction of the idling motor
(forward/reverse), thus the
speed search function is
stable regardless the
direction of the idling motor
and of operation
command. However, since
ripple current is used, the
idle frequency is not
accurately determined and
re-acceleration may start
from zero speed when the
speed search is performed
for the idling motor at low
speed (about 10 - 15 Hz,
though it depends on
motor characteristics).
NO
Cn.71
Search mode
0000
00 to 15
Set the search mode. Adjust each bit to 0 or
1 according to the table below:
OPT.
FUNCTION.
0001
Selection of speed search on
acceleration.
0010
Speed search on start after fault.
0100
Speed search after a power supply
fault.
1000
Speed search when the drive is
energized, if the start command is
present.
NO

Power Electronics SD300 Series Specifications

General

Brand	Power Electronics
Model	SD300 Series
Category	Inverter
Language	English