Allen-Bradley PowerFlex 750 Series Programming Manual

Rockwell Automation Publication 750-PM001N-EN-P - February 2017 173
Drive Port 0 Parameters Chapter 3
APPLICATIONS
Process PID
1083 PID Deadband
PID Deadband
Determines the error (+/-) which will be ignored. Any error which falls within this band
will not change the PID output. A value of 100% is equal to motor base speed.
Units:
Default:
Min/Max:
%
0.00
0.00 / 100.00
RW Real
1084 PID LP Filter BW
PID Low Pass Filter Bandwidth
Sets the level of filtering applied to the error signal. Zero will disable this filter.
Units:
Default:
Min/Max:
R/S
0.00
0.00 / 100.00
RW Real
1085 PID Preload
PID Preload
Sets the value used to preload PID Integrator when PID is enabled and P1065 [PID Cfg]
Bit 0 “Preload Int” is set to 1. A value of 100% is equal to motor base speed.
Units:
Default:
Min/Max:
%
0.00
–/+100.00
RW Real
1086 PID Prop Gain
PID Proportional Gain
Sets the value for the PID proportional component.
PID ErrorMeter x PID Prop Gain = PID Output
Default:
Min/Max:
1.00
0.00 / 100.00
RW Real
1087 PID Int Time
PID Integral Time
Time required for the integral component to reach 100% of P1092 [PID Error Meter]. Not
used when P1066 [PID Control] Bit 1 “PID Hold” = 1 (enabled).
Units:
Default:
Min/Max:
Secs
1.00
0.00 / 100.00
RW Real
1088 PID Deriv Time
PID Derivative Time
Refer to formula below:
KD = P1088
d
PI Error
= Error - Last Error
d
t
= Interrupt Time
A setting of zero disables this parameter.
Units:
Default:
Min/Max:
Secs
0.00
0.00 / 100.00
RW Real
1089 PID Status
PID Status
RO 16-bit
Integer
Status of the Process PI regulator.
Bit 0 “PID Enable” – PID controller is enabled.
Bit 1 “PID Hold” – Hold PID integrator.
Bit 2 “PID Reset” – Reset PID integrator.
Bit 3 “PID In Limit” – PID in limit.
1090 PID Ref Meter
PID Reference Meter
Present value of the PI reference signal. A value of 100% is equal to motor base speed.
Units:
Default:
Min/Max:
%
0.00
–/+100.00
RO Real
1091 PID Fdbk Meter
PID Feedback Meter
Present value of the PI feedback signal. A value of 100% is equal to motor base speed.
Units:
Default:
Min/Max:
%
0.00
–/+100.00
RO Real
1092 PID Error Meter
PID Error Meter
Present value of the PI error. A value of 100% is equal to motor base speed.
Units:
Default:
Min/Max:
%
0.00
–/+200.00
RO Real
File Group
No. Display Name
Full Name
Description
Values
Read-Write Data Type
d
PI Error
(%)
d
t
(Sec)
PID
Out
= KD (Sec) x
Options
Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved PID In Limit PID Reset PID Hold PID Enabled
Default0000000000000000
Bit 1514131211109876543210
0 = Condition False
1 = Condition True

Allen-Bradley PowerFlex 750 Series Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 750 Series
Category	Controller
Language	English