ABB ACS 800 Series, Firmware Manual

Page: 172 / 340

Actual signals and parameters
172
15.05 SCALE AO1 Scales the analogue output AO1 signal.
10 … 1000% Scaling factor. If the value is 100%, the reference value of the drive signal
corresponds to 20 mA.
Example: The nominal motor current is 7.5 A and the measured maximum
current at maximum load 5 A. The motor current 0 to 5 A needs to be read as 0
to 20 mA analogue signal through AO1. The required settings are:
1. AO1 is set to CURRENT with parameter
15.01 .
2. AO1 minimum is set to 0 mA with parameter 15.03 .
3. The measured maximum motor current is scaled to correspond to 20 mA
analogue output signal by setting the scaling factor (k) to 150%. The value is
defined as follows: The reference value of the output signal CURRENT is the
motor nominal current, that is 7.5 A (see parameter
15.01 AO1 PTR). To make
the measured maximum motor current correspond to 20 mA, it should be
scaled equal to the reference value before it is converted to an analogue
output signal. Equation:
k × 5 A = 7.5 A => k = 1.5 = 150%
100 …
10000
15.06 AO2 PTR Defines the source or constant for value.
-255.255.31 …
+255.255.31 / C.-
32768 … C.32767 Parameter index or a constant value. See parameter 10.04 EXT1 STRT PTR
for information on the difference.
For example, default value 001.005 (signal
01.05 ) is used for actual torque.
1000 =
1 mA
15.07 INVERT AO2 See parameter 15.02 .
NO See parameter 15.02 . 0
YES See parameter 15.02 . 65535
15.08 MINIMUM AO2 See parameter 15.03 .
0 mA See parameter 15.03 . 1
4 mA See parameter 15.03 . 2
15.09 FILTER AO2 See parameter 15.04 .
0.00 … 10.00 s See parameter 15.04 . 0 … 1000
15.10 SCALE AO2 See parameter 15.05 .
10 … 1000% See parameter 15.05 . 100 …
10000
16 SYST CTRL INPUTS Run Enable, parameter lock etc.
16.01 RUN ENABLE Sets the Run Enable signal on, or selects a source for the external Run Enable
signal. If Run Enable signal is switched off, the drive does not start or stops if it
is running. The stop mode is set with parameter
21.07 RUN ENABLE FUNC.
After the drive stops on Run disable condition, the drive does not restart
automatically if the run enable signal is switched on with the Start command is
ON. A new Start command has to be given for a new start.
YES Run Enable signal is on. 1
COMM.CW External signal required through the Fieldbus Control Word (bit 3). 2
DI7 Digital input DI7 is the signal source. 3
DI9 Digital input DI9 is the signal source. 4
DI11 Digital input DI11 is the signal source. 5
PARAM 16.08 Source selected with parameter 16.08 . 6
Index Name/Selection Description FbEq