analog output terminal AO1 and AO2,please refer to
Group A6)
Fig.6-15 The step response with better dynamic
performance
Note:
If the PI parameters are set incorrectly,it will cause
over-voltage fault when the system is accelerated to high
speed quickly(If the system doesn’t connect external
braking resistor or braking unit),that is because the
energy return under the system’s regenerative braking
when the system is dropping after speed overshoot.It can
be avoided by adjusting PI parameters
3 ． The PI parameters’ adjustment for speed
regulator(ASR) in the high/low speed running occasion
To set the switching frequency of ASR (A5.07) if the
system requires fast response in high and low speed
running with load.Generally when the system is running
at a low frequency,user can increase proportional gain P
and decrease integral time I if user wants to enhance the
dynamic response.The sequence for adjusting the
parameters of speed regulator is as following:
1）Select a suitable switching frequency( A5.07).
2）Adjust the proportional gain (A5.01) and integral
time(A5.02) when running at high speed,ensure the
system doesn’t become oscillating and the dynamic
response is good.
3）Adjust the proportional gain (A5.04) and integral
time(A5.05) when running at low speed, ensure the
system doesn’t become oscillating and the dynamic
response is good.
4．Get the reference torque current through a delay filter
for the output of speed regulator.A5.03 and A5.06 are
the time constant of output filter for ASR1 and ASR2.
Reserved function
A5.10 Driving torque limit
A5.11 Braking torque limit
Driving torque limit is the torque limit in motoring
condition.
Braking torque limit is the torque limit in
generating condition
In setting value, 100% is corresponding to drive’s
rated torque.
Reserved function
A5.17 and A5.18 are the parameters for PI regulator of
current loop.Increasing P or decreasing I of current loop
can speed up the dynamic response of torque.Decreasing
P or increasing I can enhance the system’s stability.
Note:
For most applications, there is no need to adjust the PI
parameters of current loop, so the users are suggested to
change these parameters carefully.
6.7 Group A6
A6.00 Multi-function terminal X1
A6.01 Multi-function terminal X2
A6.02 Multi-function terminal X3
A6.03 Multi-function terminal X4
A6.04 Multi-function terminal X5
The functions of multi-function input terminal X1~X5
are
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