Nidec LEROY-SOMER Powerdrive FX, Commissioning Manual

Page: 133 / 176

133
ADVANCED PARAMETER-SETTING MODE
Commissioning manual Powerdrive MD2/FX
4617 en - 2017.09 / e
5.15.2 - Explanation of parameters in menu 14
Sampling period for PID menu: 6 ms
14.01 : PID output value
Adjustment range : ± 100.0%
Format: 16 bits
This parameter indicates the level of the PID controller output
before scaling.
14.02
: PID main reference source
Adjustment range : 00.00 to 21.51
Factory setting : 00.00
Format: 16 bits
This parameter defines the variable which acts as the main
reference for the PID controller.
All the PID variables are automatically scaled so that these
variables have an adjustment range of ± 100.0% or 0 to 100.0%
if they are unipolar.
14.03 : PID reference source
Adjustment range : 00.00 to 21.51
Factory setting : 00.00
Format: 16 bits
This parameter defines the variable which acts as a reference
on the PID controller.
All the PID variables are automatically scaled so that these
variables have an adjustment range of ± 100.0% or 0 to 100.0%
if they are unipolar.
14.04 : PID feedback source
Adjustment range : 00.00 to 21.51
Factory setting : 00.00
Format: 16 bits
This parameter defines the variable which acts as a feedback
on the PID controller.
All the PID variables are automatically scaled so that these
variables have an adjustment range of ± 100.0% or 0 to 100.0%
if they are unipolar.
14.05 and 14.06 : PID invert /PID feedback invert
Adjustment range : Disabled (0) or Enabled (1)
Factory setting : Disabled (0)
Format: 8 bits
These parameters are used to invert the sign of the PID
reference and feedback.
Disabled (0)
Input not inverted.
Enabled (1):
Input inverted.
14.05 : PID invert.
14.06 : PID feedback invert.
14.07 : PID reference slew rate limit
Adjustment range : 0.0 to 600.0 s
Factory setting : 0.0 s
Format: 16 bits
This parameter defines the time taken for the PID reference to
go from 0 to 100.0% after an abrupt variation of the input from
0 to 100%. A variation from -100.0% to +100.0% will take twice
as long.
14.08 : PID enable
Adjustment range : Disabled (0) or Enabled (1)
Factory setting : Disabled (0)
Format: 8 bits
Disabled (0):
The PID controller is disabled.
Enabled (1):
The PID controller is enabled.
14.09 : PID option enable source
Adjustment range : 00.00 to 21.51
Factory setting : 10.01
Format: 16 bits
This parameter is used to enable the PID controller on a
condition in addition to 14.08 .
For the PID controller to be enabled, 14.08 , 10.01 and the
additional condition must be at 1.
Only bit parameters can be assigned.
If an unsuitable parameter is chosen, the input will automatically
take the value 1 to avoid locking the enable output.
14.10 : PID proportional gain
Adjustment range : 0.000 to 32.000
Factory setting : 1.000
Format: 16 bits
This is the proportional gain applied to the PID error.
With an error of 100%, the proportional part of the PID output
(
14.01
) equals 100% when
14.10
= 32.000 and
14.15
= 1.00.
14.11 : PID integral gain
Adjustment range : 0.000 to 32.000
Factory setting : 0.500
Format: 16 bits
This is the proportional gain applied to the PID error.
With an error of 100% and a gain 14.11 of 1.000 the integral
part of the PID varies by 100% in 1 s.
14.12 : PID derivative gain
Adjustment range : 0.000 to 32.000
Factory setting : 0.000
Format: 16 bits
This is the derivative gain applied to the PID error before
derivation.
14.13 : PID upper limit
Adjustment range : ± 100.0%
Factory setting : 100.0%
This parameter is used to limit the maximum value of the PID
output (see 14.18 ).
14.14 : PID lower limit
Adjustment range : ± 100.0%
Factory setting : -100.0%
Format: 16 bits
This parameter is used to limit the maximum negative value or
the minimum positive value of the PID output.
This parameter is inactive if 14.18 = Enabled (1) (see 14.18 ).