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117
COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
MENUS AND DIAGRAMS IN ADVANCED SET UP MODE
LEROY-SOMER
3871 en - 2011.05 / h
5.15.2 - Explanation of parameters in menu 14
: PID output
Adjustment range : ± 100.0 %
This parameter indicates the level of the PID controller output
before scaling.
: PID main reference source
Adjustment range :
00.00
to
21.51
Factory setting
:
00.00
This parameter defines the variable which acts as the main
reference for the PID controller.
All 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.
: PID reference source
Adjustment range :
00.00
to
21.51
Factory setting
:
00.00
This parameter defines the variable which acts as a reference
for the PID controller.
All 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.
: PID feedback source
Adjustment range :
00.00
to
21.51
Factory setting
:
00.00
This parameter defines the variable which acts as the
feedback for the PID controller.
All 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.
and
: PID invert
Adjustment range : Disabled (0) or Enabled (1)
Factory setting
: Disabled (0)
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 reference invert.
14.06
: PID feedback invert.
: PID reference slew rate limit
Adjustment range : 0 to 600.0 s
Factory setting
: 0
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.
: PID enable
Adjustment range : Disabled (0) or Enabled (1)
Factory setting
: Disabled (0)
Disabled (0): The PID controller is disabled.
Enabled (1):
The PID controller is enabled.
: PID option enable source
Adjustment range :
00.00
to
21.51
Factory setting
:
10.01
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.
: PID proportional
g
ain
Adjustment range : 0 to 32.000
Factory setting
: 1.00
This is the proportional gain applied to the PID error.
: PID inte
g
ral
g
ain
Adjustment range : 0 to 32.000
Factory setting
: 0.50
This is the integral gain applied to the PID error before
integration.
: PID derivative
g
ain
Adjustment range : 0 to 32.000
Factory setting
: 0
This is the derivative gain applied to the PID error before
differentiation.
: PID upper limit
Adjustment range : -100.0% to +100.0%
Factory setting
: 100.0%
This parameter is used to limit the maximum value of the PID
output (see
14.18
).
: PID lower limit
Adjustment range : ± 100.0%
Factory setting
: -100.0%
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
).
: PID output scalin
g
Adjustment range : 0 to 2.50
Factory setting
: 1.00
This parameter is used to scale the PID output before it is
added to the main reference.
The sum of both references is automatically scaled according
to the adjustment range of the parameter to which it is
addressed.
: PID output destination
Adjustment range :
00.00
to
21.51
Factory setting
:
00.00
Used to define the parameter to which the PID output is
addressed.
Only unprotected non-bit parameters can be assigned.
If an unsuitable parameter is assigned, the output will not be
sent to any address.
If the PID output is supposed to affect the speed, it is
advisable to address it to a preset reference.
14.01
14.02
14.03
14.04
14.05
14.06
14.07
14.08
14.09
14.10
14.11
14.12
14.13
14.14
14.15
14.16
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