Parameter Description
VD300 Series Inverter User Manual
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P03.20
Braking Torque Upper
Limit Source Setting
0: Function code: P03.22
1: AI1
2: AI2
3: AI3 (extension card)
4: HS pulse input
5: Communication setting
Note: Setting mode 100% of 1-4
corresponds to three times of the motor
current
0
○
Used to select motor, braking torque upper limit setting source.
P03.21
Electric Torque Upper
Limit Keypad Setting
0.0%~300.0% (rated motor current )
180.0%
○
P03.22
Braking Torque Upper
Limit Keypad Setting
0.0%~300.0% (rated motor current)
180.0%
○
When motor/braking torque upper limit is set by keypad, the two function code is separately relative to
motor/braking torque set upper limit.
P03.23
Max Voltage Limit
0.0%~120.0%
100.0%
◎
Used to set inverter max output voltage.
P03.24
Pre-excitation Time
0.000s~10.000s
0.300s
○
Pre-excitation time: magnetic flux is build up before motor started, in order to make motor start quick
response. If there is run command, the function code will enter to pre-excitation state according to set
time, once magnetic flux has built up, then enter to normal Acceleration run.
P03.25
Weak Magnetic
Coefficient in Constant
Work Area
0.1~2.0
0.3
○
P03.26
Min. Weak Magnetic
Point in Constant Work
Area
10%~100%
20%
○
In vector control mode, when motor run speed is higher than rate RPM, motor enter to weak flux run
stator. Via setting weak flux factor can change weak flux curve, the value is bigger the flux curve is
steeper, vice versa, the flux curve getting more flat. As below diagram:
Fig 6.4-3 Weak magnetic function diagram
Summary of Contents for VD300 Series
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