Emerson Commander SX, Руководство для продвинутых пользователей

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117
ADVANCED USER GUIDE
Commander SX
IP66/Nema 4X variable speed drive
MENU 14: PID CONTROLLER
CONTROL TECHNIQUES
3854 en - 03.2008 / b
16.3 - 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 :
0.00
to
21.51
Factory setting :
0.00
This parameter defines the variable which acts as the main
reference for the PID controller.
Only non-bit parameters can be programmed as the source.
If an unsuitable parameter is programmed, the input value is
taken to equal 0.
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 :
0.00
to
21.51
Factory setting :
0.00
This parameter defines the variable which acts as a reference
for the PID controller.
Only non-bit parameters can be programmed as the source.
If an unsuitable parameter is programmed, the input value is
taken to equal 0.
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 :
0.00
to
21.51
Factory setting :
0.00
This parameter defines the variable which acts as the
feedback for the PID controller.
Only non-bit parameters can be programmed as the source.
If an unsuitable parameter is programmed, the input value is
taken to equal 0.
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 : 0 or 1
Factory setting
: 0
0 (Disabled) (OFF): Input not inverted.
1 (Enabled) (On): Input inverted.
These parameters are used to invert the sign of the PID
reference and feedback (
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 of -100.0% to +100.0% will take
twice as long.
: PID enable
Adjustment range : 0 or 1
Factory setting
: 0
0 (Disabled) (OFF): The PID controller is disabled.
1 (Enabled) (On): The PID controller is enabled.
WARNING:
Should the values of
14.10
,
14.11
and
14.12
be
modified, set
14.08
to 0 first and then back to 1 so that
this change is taken into account by the drive.
: PID option enable source
Adjustment range :
0.00
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.
Note: Parameter
00.00
does not lock the enable output.
: PID proportional gain
Adjustment range : 0 to 320.00
Factory setting
: 10.00
This is the proportional gain applied to the PID error.
After modifying this parameter, refer to
14.08
.
Note: The gain values configured for a V2.20 drive must not
be kept for a V3.10 drive (the adjustment range is completely
different for these 2 software versions).
: PID integral gain
Adjustment range : 0 to 320.00
Factory setting
: 5.00
This is the gain applied to the PID error before integration.
After modifying this parameter, refer to
14.08
.
Note: The gain values configured for a V2.20 drive must not
be kept for a V3.10 drive (the adjustment range is completely
different for these 2 software versions).
: PID derivative gain
Adjustment range : 0 to 2.50
Factory setting
: 0
This is the gain applied to the PID error before derivation.
After modifying this parameter, refer to
14.08
.
: PID upper limit
Adjustment range : 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
= 1 (see
14.18
).
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