Sanken SVCO6, Instruction Manual, Page: 215 / 326

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7
7-3 Description of Functions
● When command frequency is added to PID control output for the frequency output, you can gain the PID control
output and then make an addition calculation.
· F3205=0: Without command value addition calculation
Use the PID control output directly as the frequency output.
· F3205=1: With command value addition calculation
When PID control output is gained by F3206: After command value addition calculation is added to command
frequency, it will be used as the frequency output.
Command frequency
Gain
Output frequency
Output limit
PID output
: PID control action selection
: PID component selection
【
End Mode of PID Control
】
F3124 PID end mode selection
F3125 PID end setting value
The function to select PID control end mode when inverter stops the acceleration/deceleration.
● When selecting stop deceleration with the following function code, i.e. make a stop without a PID control open loop
mode, or the specified conditions have been satisfied, a open loop mode will be used to stop the deceleration.
· F3124=1: direct end mode.
At the same time of stopping the deceleration, end the PID control forcibly by the open loop mode.
· F3124=2: conditional end mode.
When it starts to stop deceleration and the output frequency of the inverter becomes to be the PID end setting
value: frequency operated by F3125, the PID control will be ended forcibly by the open loop mode.
The conditions of PID control are to make a judgment of the output frequency with the PID end setting value:
frequency set by F3125 comparing to the upper frequency limit: F1007.
Fr
eq
u
en
cy
Output frequency
Time
PID control open loop control
Fr
eq
u
en
cy
Output frequency
PID control end condition
Time
PID control open loop control
Note 1: PID operation polarity switching function: when F3011/F3111=2, the PID control output tends to increase
because of the stop action, when the system cannot be stopped, please set F3124: PID end mode selection = 1:
direct end mode to stop the action.
Note 2: When zero servo action is effective in PID control, end the PID control and start the open loop zero servo
action.