YASKAWA FSDrive-MV1000

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2.2 b: Application

120 YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide

n b5-07: PID Offset Adjustment

Sets the offset added to the PID controller output as a percentage of the maximum frequency (E1-04).

b5-08: PID Primary Delay Time Constant

Sets the time constant for the filter applied to the output of the PID controller. Normally, change is not required.

Note: Useful when there is a fair amount of oscillation or when rigidity is low. Set to a value larger than the cycle of the resonant

frequency. Increasing this time constant may reduce the responsiveness of the drive.

n b5-09: PID Output Level Selection

Reverses the sign of the PID controller output signal. Normally a positive PID input (feedback smaller than setpoint)

leads to positive PID output.

Setting 0: Normal Output

A negative PID input causes an increase in the PID output (direct acting).

Setting 1: Reverse Output

A positive PID input causes a decrease in the PID output (reverse acting).

b5-10: PID Output Gain Setting

Applies a gain to the PID output and can be helpful when the PID function is used to trim the frequency reference

(b5-01 = 3 or 4).

b5-11: PID Output Reverse Selection

Determines whether a negative PID output reverses the direction of drive operation. This parameter has no effect when

the PID function trims the frequency reference (b5-01 = 3 or 4) and the PID output will not be limited

(same as b5-11 = 1).

Setting 0: Reverse Disabled

Negative PID output will be limited to 0 and the drive output will be stopped.

Setting 1: Reverse Enabled

Negative PID output will cause the drive to run in the opposite direction.