Safety
Information
Introduction
Product
information
System
design
Mechanical
installation
Electrical
installation
Getting
started
Optimisation
Parameters
Technical
data
Component
sizing
Diagnostics
174
Unidrive SP Regen Installation Guide
www.controltechniques.com Issue Number: 2
Subject to the limits the PID controller output is given by
output = error x [P + I/s + Ds/(0.064s + 1)]
Where:
error = reference - feedback
P = proportional gain = Pr
14.10
I = integral gain = Pr
14.11
D = differential gain = Pr
14.12
Therefore with an error of 100% and P = 1.000 the output produced by the proportional term is 100%. With an error of 100% and I = 1.000 the output
produced by the integral term will increase linearly by 100% every second. With an error that is increasing by 100% per second and D = 1.000 the
output produced by the D term will be 100%.
This parameter defines the time taken for the reference input to ramp from 0 to 100.0% following a 0 to 100% step change in input.
14.01
PID output
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV PT
US RW BU PS
2
1
1
1
Range
Regen
±100.00 %
Update rate
4ms
14.02
PID main reference source
14.03
PID reference source
14.04
PID feedback source
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP
ND
RA NC NV
PT
US RW BU PS
2
1
1
1
1
Range
Regen
Pr
0.00
to Pr
21.51
Default
Regen
Pr
0.00
Update rate
Background
14.05
PID reference source invert
14.06
PID feedback source invert
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU
PS
1
1
1
Default
Regen
0
Update rate
4ms
14.07
PID reference slew rate limit
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP
ND
RA NC NV
PT
US RW BU PS
1
1
1
1
Range
Regen
0.0 to 3,200.0 s
Default
Regen
0.0
Update rate
Background
14.08
PID enable
Drive mode
Regen
Coding
Bit
SP
FI
DE Txt VM DP
ND
RA NC NV
PT
US RW BU PS
1
1
1
Default
Regen
0
Update rate
4ms
Summary of Contents for SP1201
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