STEP ET Series - Page 98

Chapter 7 Parameter Explanation
Shanghai Sigriner STEP Electric Co., Ltd.
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purpose of achieving quick response at motor starting. When there is a run command, users can enter
the pre-excitation state according to the time set by this function code; establish the magnetic flux,
and then enter the normal acceleration running. If this function code is set to 0, it will indicate that
there is no pre-excitation process.
Note: The motor may rotate during pre-excitation, users should use the mechanical brake.
Figure 7-10 Schematic Diagram of Pre-excitation
Function code
Name
Setting range
Factory setting
P11.07
Braking action time (s)
0.00~100.00
0.20
The brake action time refers to the time of the external brake from receiving the breaking command
to fully opening; and the time from opening to entering the zero servo, i.e., the zero velocity holding
time.
Function code
Name
Setting range
Factory setting
P11.08
Tracking delay time (ms)
0~65000
1
This time is used to wait for demagnetization of the motor. If overcurrent occurs immediately after
the start of tracing, this value should be increased.
Function code
Name
Setting range
Factory setting
P11.10
Tracking voltage Kp
0.0~100.0
0.2
Kp during tracking process. If the value is too small, the tracking process will be longer; if the value
is too large, an overcurrent will be observed during tracking.
Function code
Name
Setting range
Factory setting
P11.11
Tracking voltage Ki
0.0~100.0
0.3
Ki during tracking process. If the value is too small, the tracking process will be longer; if the value
is too large, an overcurrent will be observed during the tracking.