Delta VFD-V Series User Manual

5
VFD-V Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-57
07-12
Speed Search Type
a
Factory setting
0
Settings 0
speed search disabled
1
speed search through the frequency command
2
FWD-speed search only (motor only runs in FWD direction)
3
REV-speed search only (motor only runs in REV direction)
4
FWD/REV speed search enabled in both directions (fwd first)
5
REV/FWD speed search enabled in both directions (rev first)
 This parameter selects the method for speed search. Settings 2 and 3 are used when
the motor direction is always guaranteed. If it is possible the motor direction may be
either REV or FWD upon a speed search, then selection 4 or 5 should be used.
 The speed search function is most applicable to a large Punch Press machine, blower,
or other high inertia application. While these applications normally stop, using the
“Coast to Stop” method, this may take 2~5 minutes or the application comes to a
complete stop. However, with the speed search function enabled, users could instantly
start the drive without waiting for the flywheel to come to a stop and the drive would
quickly find the speed and bring the motor to speed.

By adding an encoder (PG) to the application, a faster and more speed search would
occur.
07-13 Speed Search Frequency (FWD direction)
a
Factory setting 60.00/50.00
Settings 0.00~400.00Hz

This parameter is used as the frequency start point for the Speed Search function, when
Pr. 07-12 is set to 2 or 4.
07-14 Speed Search Frequency (REV direction)
a
Factory setting 60.00/50.00
Settings 0.00~400.00Hz

This parameter is used as the frequency start point for the Speed Search function when
Pr. 07-12 is set to 3 or 5.
Speed Search type
07-12
current 07-09
＞
07-13
Speed search
frequency
(forward direction)
07-14
Frequency
Speed search
frequency
(REV direction)

Delta VFD-V Series Specifications

General

Brand	Delta
Model	VFD-V Series
Category	Controller
Language	English