Veikong gpd 515/g5 Startup Manual page 166

5 . 3 6 P I D C O N T R O L
D . PID S e t t i n g s
b 5 - 0 2 : Proportional Gain
Proportional gain is the value by which the error signal is multiplied to generate a new
PID controller output. A higher setting will result in a more responsive system. A lower
setting will result in a more stable system.
b 5 - 0 3 : Integral Time
This parameter determines how fast the PID controller will seek to eliminate any
steady-state error. The smaller the setting, the faster the error will be eliminated. To
eliminate the integral function entirely, set this parameter to 0.0 seconds. A lower
setting will result in a more responsive system. A higher setting will result in a more
stable system.
b 5 - 0 4 : Integral Value Limit
This parameter will limit the effect that the integrator can have. It works whether the
PID controller output is positive or negative. It can also be used to prevent integrator
"wind-up."
b 5 - 0 5 : Derivative Time
This parameter can be adjusted to increase system response to fast load or reference
changes, and to reduce overshoot upon startup. To eliminate the differential function
entirely, set this parameter to 0.00 seconds.
b 5 - 0 6 : PID Output Limit
Parameter b 5 - 0 6 can be used to set the maximum effect the PID controller will have
on the system. It also will limit the PID output when it is either positive or negative.
NOTE: When the PID output limit is reached, the integrator will hold and not change in
value until the PID output is less than the PID output limit.
b 5 - 0 7 : PID Offset Adjustment
This parameter will add a fixed percentage to the PID output. It can be used to tune
out small system offsets. NOTE: This parameter is set as a percentage of maximum
output frequency (E 1 - 0 4) .
( 1 ) These parameters are factory set for optimum results for most applications,
and generally do not need to be changed.
Continued
( 1 )
( 1 )
( 1 )
5-80
Factory setting: 1 . 0 0
Range: 0.00 to 10.00
Factory setting: 1 . 0
Range: 0.0 to 360.0 seconds
Factory setting: 1 0 0 . 0
Range: 0.0 to 100.0 %
Factory setting: 0 . 0 0
Range: 0.0 to 10.00 seconds
Factory setting: 1 0 0 . 0
Range: 0.0 to 100.0 %
Factory setting: 0 . 0
Range: -100.0 to 100.0 %