Chapter 4 Parameters|VFD-VL
4-71
The parameter is set by the output frequency, current and operation time of the drive for
activating the I
2
t electronic thermal protection function. The function will be activated for the
150% * setting current for the setting of Pr.06-13.
1
2
3
4
5
60Hz
0 50 100 150 200
Operation
time(min)
Load
factor (%)
06-14
Heat Sink Over-heat (OH) Warning
Control
mode
VF VFPG SVC FOCPG TQCPG FOCPM
Factory setting: 85.0
Settings 0.0 to 110.0
o
C
06-15
Stall Prevention Limit Level
Control
mode
VF VFPG SVC
Factory setting: 50
Settings 0 to 100% (refer to Pr.06-02, Pr.06-03)
When the operating frequency is larger than Pr.01-01, Pr06-02=150%, Pr. 06-03=100% and Pr.
06-15=80%:
Stall Prevention Level during acceleration = 06-02x06-15=150x80%=120%.
Stall Prevention Level at constant speed= 06-03x06-15=100x80%=80%.
06-02
06-15
01-01
01-01
x06-02
Stall Prevention Level
output frequency
frequency
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Call 1(800)985-6929 for Sales
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