ABB ACS150 series, Руководство пользователя

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Actual signals and parameters
120
4007 value Entry Display
0 00003 3
1 00031 3.1
2 00314 3.14
3 03142 3.142
4 31416 3.1416
Parameters in the Long parameter mode
Index Name/Selection Description Def
4004 PID DERIV FILTER Defines the filter time constant for the derivative part of the process PID
controller. Increasing the filter time smooths the derivative and reduces
noise. 1.0 s
0.0
…10.0 s
Filter time constant. If parameter value is set to zero, the derivative filter is
disabled.
4005 ERROR VALUE INV Selects the relationship between the feedback signal and drive speed (drive
output frequency). 0 = NO
0 = NO
Normal: A decrease in feedback signal increases drive speed (drive output
frequency). Error = Ref - Fbk
1 = YES Inverted: A decrease in feedback signal decreases drive speed (drive output
frequency). Error = Fbk - Ref
4006 UNITS Selects the unit for PID controller actual values. 4 = %
0
…12
See parameter 3405 OUTPUT1 UNIT selecti
ons 0…12 (NO UNIT…mV).
4007 UNIT SCALE Defines the decimal point location for the display parameter selected by
parameter
4006 UNITS.
1
0
…4
Example PI (3.14159)
4008 0% VALUE Defines together with parameter 4009 100% VALUE the scaling applied to
the PID controller
’s actual values.
Units (4006)
Scale (4007)
+1000%
4009
4008
Internal scale (%)
0% 100%
-1000%
0
x…x
Unit and range depend on the unit and scale defined by parameters 4006
UNITS and 4007 UNIT SCALE.
4009 100% VALUE Defines together with parameter 4008 0% VALUE the scaling applied to the
PID controller
’s actual values.
100
x...x Unit and range depend on the unit and scale defined by parameters 4006
UNITS and 4007 UNIT SCALE.
4010 SET POINT SEL Selects the source for the process PID controller reference signal. 2 = POT
0 = KEYPAD Control panel
1 = AI1 Analog input AI1
2 = POT Potentiometer