Vicruns 2S-0.4G-B, User Manual

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Chapter 6 Description of Function Codes
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Group P9: Fault and Protection
0: No motor overload protection function, there is a danger of motor overheating damage, it
is recommended to heat the relay between the inverter and the motor;
1: There is a motor overload protection function, and the relationship between the protection
time and the motor current is shown in Figure 6-20.
Function
code
Name
Description
(setting range)
Factory
Default
Change
P9-00
Motor overload protection
selection
0~1 1
☆
Function
code
Name
Description
(setting range)
Factory
Default
Change
P9-01 Motor overload protection gain 0.20
～
10.00 1.00
☆
In order to effectively protect the overload of different motors, it is necessary to set P9-01 ap-
propriately. For the usage method, refer to Figure 5-21 of the inverse time limit curve of motor
overload protection. In the figure, L1 is the relationship between the motor protection time
and the motor current when P9-01=1. When the user needs to change the protection time of
a certain current of the motor, he only needs to change P9-01. The time relationship is:
Required protection time T = P9-01 × T(L1)
Example:
When the user needs to modify the protection time of 150% rated current to 3 minutes, first
find in Figure 5-20 that the protection time of 150% motor current is 6.0 minutes, then P9-01
= required protection time T/T (L1)=3min/6min=0.5.
The maximum time of motor overload protection is 100 minutes, and the shortest overload
time is 0.1 minutes. Please set it according to your needs. And when the motor is overloaded,
the inverter will report Err14 to avoid damage to the motor due to continuous heating.
Figure 6-21. Motor overload protection curve
C
h
a
p
te
r
6
Motor current percentage
Time (t)
Tmax
100.0min
80.0min
30.0min
8.0min
6.0min
3.0min
2.5min
2.0min
1.5min
1.0min
0.8min
0
.
5min
0
.
1min
L0
L1
L2
P9-01<1
P9-01 = 1
P9-01>1
110% 120% 130% 140% 150% 160% 170% 180% 190% 200% 210% 220% 230% 240% 250%