Daikin ACS320 Operation Manual page 40

Code Description (continuation of Table 27)
1103 REF1 SELECT
Selects the signal source for external reference REF1 .
0 = KEYPAD – Defines the control panel as the reference source.
1 = AI1 – Defines analog input 1 (AI1) as the reference source.
2 = AI2 – Defines analog input 2 (AI2) as the reference source.
3 = AI1/JOYST – Defines analog input 1 (AI1), configured for joystick operation, as the reference source.
• The minimum input signal runs the drive at the maximum reference in the reverse direction. Define the minimum using parameter 1104.
• The maximum input signal runs the drive at maximum reference in the forward
direction. Define the maximum using parameter 1105.
• Requires parameter 1003=3 (request) . Warning! Because the low end of the
reference range commands full reverse operation, do not use 0 V as the
lower end of the reference range . Doing so means that if the control signal
is lost (which is a 0 V input) the result is full reverse operation . Instead, use
the following set-up so that loss of the analog input triggers a fault,
stopping the drive:
• Set parameter 1301 MINIMUM AI1 (1304 MINIMUM AI2) at 20% (2 V or 4 mA) .
• Set parameter 3021 AI1 FAULT LIMIT to a value 5% or higher .
• Set parameter 3001 AI<MIN FUNCTION to 1 (FAULT) .
4 = AI2/JOYST – Defines analog input 2 (AI2), configured for joystick operation, as the
reference source .
• See above (AI1/JOYST) description .
5 = DI3U,4D(R) – Defines digital inputs as the speed reference source (motor
potentiometer control) .
• Digital input DI3 increases the speed (the U stands for "up") .
• Digital input DI4 decreases the speed (the D stands for "down") .
• A Stop command resets the reference to zero (the R stands for "reset") .
• Parameter 2205 ACCELER TIME 2 controls the reference signal's rate of change .
6 = DI3U,4D – Same as above (DI3U,4D(R)), except:
• A Stop command does not reset the reference to zero . The reference is stored .
• When the drive restarts, the motor ramps up (at the selected acceleration rate) to the stored reference .
7 = DI5U,6D – Same as above (DI3U,4D), except that DI5 and DI6 are the digital inputs used .
8 = COMM – Defines the fieldbus as the reference source.
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) – Same as DI3U,4D(R) above, except that:
• Changing the control source (EXT1 to EXT2, EXT2 to EXT1, LOC to REM) does not copy the reference .
12 = DI3U,4D(NC) – Same as DI3U,4D above, except that:
• Changing the control source (EXT1 to EXT2, EXT2 to EXT1, LOC to REM) does not copy the reference .
13 = DI5U,6D(NC) – Same as DI3U,4D above, except that:
• Changing the control source (EXT1 to EXT2, EXT2 to EXT1, LOC to REM) does not copy the reference .
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.
Analog Input Reference Correction .
Parameter values 9, 10, and 14...17 use the formula in the following .
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 .
REF1 SELECT
20 = KEYPAD(RNC) – Defines the control panel as the reference source. A Stop command resets the reference to zero (R stands for reset.). Changing the
control source (EXT1 to EXT2, EXT2 to EXT1) does not copy the reference .
21 = KEYPAD(NC) – Defines the control panel as the reference source. A Stop command does not reset the reference to zero. The reference is stored.
Changing the control source (EXT1 to EXT2, EXT2 to EXT1) does not copy the reference
OM 1190-1 • MD4 VFD
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CTual Ignals and arameTers
Range Resolution Default
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