Chapter 5 Function code
table
ICON500 high performance vector control frequency inverter user
manual
-
67-
24 Group motor Protection parameter
P24.00
Motor overload protection
gain
0.20
~
10.00
1.00
☆
P24.01
Motor overload starting
current at zero speed
50.0%
~
150.0%
100.0%
☆
P24.02
Motor overload starting
current at Rated speed
50.0%
~
150.0%
115.0%
☆
Motor in self cooling mode, heat
dissipation is poor when in low
frequency but good in condition of high
frequency . P24.01 adn P24.02 is used to
set the starting point of zero and rated
speed overload current in order to
obtain a more reasonable under
different speed overload protection
Time curve
Motor overload protection
starting current
P24.02
P24.01
Motor output
frequency
0
Fn
Overload
time
80min
Overload gain P24.00=1.20
64min
Overload gain P24.00=1.00
Overload gain P24.00=0.80
30min
5min
160s
5
s
100%
120%
140% 160%
180%
200%
220%
* Overload protection starting current
Left: Motor overload protection starting current
Right: Motor Overload Protection Curve with Different
Overload Protection Gains
Motor overload Overload protection of motor 2 only when P24.04 bits equals one or overload protection of
motor 1 or P24.08 bits equals one. P24.00 is used to adjust the overload inverse time curve time, as shown in
the right figure above, the minimum motor overload time is 5.0s.
Note: Users need to correctly set the three parameters of P24.00, P24.01 and P24.02 according to the actual
overload capacity of the motor. If set unreasonable, prone to motor overheating damage and the inverter is not
timely warning of the danger of protection.
P24.04
Motor 1 protection
option
Unit’digit:motor protection selection
0:No
1:overload protection(motor 1)
2:PTC1000
3:PTC100
01
☆