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Ecowatt
Drive K320 series
®
Function
Name
code
Overload
protection
P02.27
coefficient of
motor 1
Power display
calibration
P02.28
coefficient of
motor 1
Description
protection value needs to be adjusted
properly,
the
indicates
lowering
protection threshold of the motor whose
running frequency is lower than 30Hz.
2: Variable-frequency motor protection
(without
low
speed
Because the heat dissipation function for
a
variable-frequency
impacted by the rotation speed, it is not
necessary to adjust the protection value
at low speed running.
Motor overload multiples M=Iout/(In*K)
In is rated motor current, lout is VFD
output current, and K is motor overload
protection coefficient.
A smaller value of K indicates a bigger
value of M.
When M=116%, protection is performed
after motor overload lasts for 1 hour;
when M=200%, protection is performed
after
motor
overload
seconds; and when M≥400%, protection
is performed immediately.
Time t
1h
1m
Motor overload multiple
116 %
Setting range: 20.0% –120.0%
The function code can be used to adjust
the power display value of motor 1.
However, it does not affect the control
performance of the VFD.
Setting range: 0.00–3.00
-146-
low
compensation
the
overload
compensation).
motor
is
not
lasts
for
200 %
Function parameter list
Default
Modify
60
100.0%
○
1.00
○
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