5
VFD-B Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-7
01 - 08
Lower Bound of Output Frequency Factory Setting: 00
Settings 00 to 100% Unit: 1%
î The Upper/Lower Bound is to prevent operation error and machine damage.
î If the Upper Bound of Output Frequency is 50Hz and the Maximum Output Frequency is
60Hz, the Maximum Output Frequency will be limited to 50Hz.
î If the Lower Bound of Output Frequency is 10Hz, and the Minimum Output Frequency
(Pr.01-05) is set at 1.0Hz, then any Command Frequency between 1.0-10Hz will
generate a 10Hz output from the drive.
î This parameter must be equal to or less than the Upper Bound of Output Frequency
(Pr.01-07).
î The Lower Bound of Output Frequency value = (Pr.01-00 x Pr.01-08) /100
01 - 09
Acceleration Time 1 (Taccel 1) a Factory Setting: 10.0
01 - 10
Deceleration Time 1 (Tdecel 1) a Factory Setting: 10.0
01 - 11
Acceleration Time 2 (Taccel 2) a Factory Setting: 10.0
01 - 12
Deceleration Time 2 (Tdecel 2) a Factory Setting: 10.0
01 - 18
Acceleration Time 3 (Taccel 3)
a
Factory Setting: 10.0
01 - 19
Deceleration Time 3 (Tdecel 3)
a
Factory Setting: 10.0
01 - 20
Acceleration Time 4 (Taccel 4)
a
Factory Setting: 10.0
01 - 21
Deceleration Time 4 (Tdecel 4)
a
Factory Setting: 10.0
Settings 0.01 to 3600.0 sec Unit: 0.1/0.01sec
⌠Factory setting 60sec is for the models of 30 HP and above.
î Unit can be set by Pr.01-23.
î The Acceleration Time is used to determine the time required for the AC drive to ramp
from 0 Hz to its Maximum Output Frequency (Pr.01-00). The rate is linear unless
S-Curve is âEnabled.â
î The Deceleration Time is used to determine the time required for the AC drive to
decelerate from the Maximum Output Frequency (Pr.01-00) down to 0 Hz. The rate is
linear unless S-Curve is âEnabled.â
î The Acceleration/Deceleration Time 1, 2, 3, 4 is switched according to the Multi-Function
Input Terminals Setting . See Pr.04-04 to Pr.04-09 for more details.
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