IMO HD2 IP Series, Instruction Manual

Page: 133 / 361

HD2 IP55 High-ingress Protection Series
Function parameter list
-119-
Function
code
Name Description
Default
value
Modify
P01.02
Hold time of
starting
frequency
Output f requency
fmax
t1
T
F1 set by P01.01
f1
T1 set by P01.02
A proper starting frequency can increase the
torque during startup. Within the hold time of
starting frequency, the output frequency of VFD
is the starting frequency, and then it runs from
the starting frequency to the target frequency, if
the target frequency (frequency command) is
below the starting frequency, the VFD will be
standby rather than running. The starting
frequency value is unlimited by the lower limit
frequency.
Setting range: 0.0
–50.0s
0.0s
◎
P01.03
DC brake
current before
start
During starting, the VFD will first perform DC
brake based on the set DC brake current before
startup, and then it will accelerate after the set
DC brake time before startup elapses. If the set
DC brake time is 0, DC brake will be invalid.
The larger the DC brake current, the stronger
the brake force. The DC brake current before
startup refers to the percentage relative to rated
VFD output current.
Setting range of
P01.03 : 0.0
–100.0%
Setting range of P01.04 : 0.00
–50.00s
0.0%
◎
P01.04
DC brake
time before
start
0.00s
◎
P01.05
Acceleration/
deceleration
mode
This function code is used to select the
frequency variation mode during starting and
running.
0: Straight line; the output frequency increases
or decreases in straight line;
fmax
Output frequency f
t1 t2
Time t
1: S curve; the output frequency increases or
decreases in S curve;
S curve is generally used in cases where
smooth start/stop is required, eg, elevator,
conveyer belt, etc.
0
◎