Daikin ACS320 Operation Manual page 64

Code Description (continuation of Table 43)
4007 UNIT SCALE
Defines the decimal point location in PID controller actual values.
4007 Value Entry Display
0 0003
1 0031
2 0314
3 3142
• Enter the decimal point location counting in from the right of the entry .
• See table for example using pi (3 .14159) .
4008 0 % VALUE
Defines (together with the next parameter) the scaling applied to the PID controller's actual values
(PID1 parameters 0128, 0130, and 0132) .
• Units and scale are defined by parameters 4006 and 4007.
4009 100 % VALUE
Defines (together with the previous parameter) the scaling applied to the PID controller's actual values.
• Units and scale are defined by parameters 4006 and 4007.
4010 SET POINT SEL
Defines the reference signal source for the PID controller.
• Parameter has no significance when the PID regulator is by-passed (see 8121 REG BYPASS CTRL).
0 = KEYPAD – Control panel provides reference .
1 = AI1 – Analog input 1 provides reference .
2 = AI2 – Analog input 2 provides reference .
8 = COMM – Fieldbus provides reference .
9 = COMM + AI1 – Defines a fieldbus and analog input 1 (AI1) combination as the reference source. See Analog Input Reference Correction below.
10 = COMM * AI1 – Defines a fieldbus and analog input 1 (AI1) combination as the reference source. See Analog Input Reference Correction below.
11 = DI3U, 4D(RNC) – Digital inputs, acting as a motor potentiometer control, provide reference .
• DI3 increases the speed (the U stands for "up")
• DI4 decreases the reference (the D stands for "down") .
• Parameter 2205 ACCELER TIME 2 controls the reference signal's rate of change .
• R = Stop command resets the reference to zero .
• NC = Reference value is not copied .
12 = DI3U, 4D(NC) – Same as DI3U, 4D(RNC) above, except:
• Stop command does not reset reference to zero . At restart the motor ramps up, at the selected acceleration rate, to the stored reference .
13 = DI5U, 6D(NC) – Same as DI3U, 4D(NC) above, except:
• Uses digital inputs DI5 and DI6 .
14 = AI1 + AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as the reference source. See Analog Input Reference Correction below.
15 = AI1 * AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as the reference source. See Analog Input Reference Correction below.
16 = AI1 - AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as the reference source. See Analog Input Reference Correction below.
17 = AI1/AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as the reference source. See Analog Input Reference Correction below.
19 = INTERNAL – A constant value set using parameter 4011 provides reference .
Analog Input Reference Correction
Parameter values 9, 10, and 14...17 use the formula in the following table .
Value Setting AI reference is calculated as following:
C + B C value + (B value - 50% of reference value)
C * B C value * (B value / 50% of reference value)
C - B (C value + 50% of reference value) - B value
C / B (C value * 50% of reference value) / B value
Where:
• C = Main Reference value ( = COMM for values 9, 10 and = AI1 for values 14...17) .
• B = Correcting reference ( = AI1 for values 9, 10 and = AI2 for values 14...17) .
Example: The figure shows the reference source curves for value settings 9, 10, and 14...17, where:
• C = 25% .
• P 4012 SETPOINT MIN = 0 .
• P 4013 SETPOINT MAX = 0 .
• B varies along the horizontal axis .
20 = PID2OUT – Defines PID controller 2 output (parameter 0127 PID 2 OUTPUT) as the reference source.
OM 1190-1 • MD4 VFD
3
3 .1
3 .14
3 .142
a
64
s p
CTual Ignals and arameTers
Range Resolution Default
0...4 1 1
-1000 .0...
0 .1% 0 .0%
1000 .0%
-1000 .0...
0 .1% 100%
1000 .0%
0 . . .19 1 0
www .DaikinApplied .com
S
