Danfoss VLT AutomationDrive FC 300 Programming Manual page 125

3 Parameter descriptions
[140] Bus ctrl. 4-20 mA
[141] Bus ctrl 0-20mA t.o.
[142] Bus ctrl 4-20mA t.o.
3 [149] Torque % lim 4-20mA
[150] Max Out Fr 4-20mA
6-61 Terminal X30/8 Min. Scale
Range:
0.00 %* [0.00 - 200.00 %]
6-62 Terminal X30/8 Max. Scale
Range:
100.00 %* [0.00 - 200.00 %]
mA desired maximum current x
20 /
6-63 Terminal X30/8 Bus Control
Range:
0.00 %* [0.00 - 100.00 %]
6-64 Terminal X30/8 Output Timeout Preset
Range:
0.00 %* [0.00 - 100.00 %]
3.8.9 6-7* Analog Output 3 MCB113
Parameters for configuring the scaling and limits for analog output 3, Terminal X45/1 and X45/2. Analog outputs are current outputs: 0/4 – 20 mA.
Resolution on analog output is 11 bit.
6-70 Terminal X45/1 Output
Option:
[0] No operation
[52] MCO 305 0-20 mA
[53] MCO 305 4-20 mA
[100] Output frequency 0-20 mA
124
An output value set from fieldbus process data. The output will work independently of internal
functions in the frequency converter.
Warning Reference Low
Par. 4-54
out.
Warning Reference Low
Par. 4-54
out.
Torque % Lim 4-20mA: Torque reference. par. 3-00
= 20mA
Reference Range
Par. 3-00
Max Output Frequency
In relation to par. 4-19
Function:
Scales the minimum output of the selected analog signal on terminal X30/8. Scale the minimum
value as a percentage of the maximum signal value, i.e. 0 mA (or 0 Hz) is desired at 25% of the
maximum output value and 25% is programmed. The value can never be higher than the corre-
sponding setting in par. 6-62
This parameter is active when option module MCB 101 is mounted in the frequency converter.
Function:
Scales the maximum output of the selected analog signal on terminal X30/8. Scale the value to the
desired maximum value of the current signal output. Scale the output to give a lower current than
20 mA at full scale or 20 mA at an output below 100% of the maximum signal value. If 20 mA is
the desired output current at a value between 0 - 100% of the ful-scale output, program the per-
centage value in the parameter, i.e. 50% = 20 mA. If a current between 4 and 20 mA is desired at
maximum output (100%), calculate the percentage value as follows:
100 %
Function:
Holds the level of Output X30/8 if controlled by bus.
Function:
Holds the preset level of Output X30/8.
In case of a bus timeout and a timeout function is selected in par. 6-60
output will preset to this level.
Function:
Select the function of Terminal X45/1 as an analog current output.
When no signal on the analog output.
0 Hz = 0 mA; 100 Hz = 20 mA.
®
MG.33.M8.02 - VLT
defines the behaviour of the analog output in case of bus time-
defines the behaviour of the analog output in case of bus time-
Reference Range
[-Max - Max] -100% = 4 mA; 0% = 12mA; +100% = 20mA
.
Terminal X30/8 Max. Scale if value is below 100%.
20 − 4
i e mA x
. . 10 : 100 = 160 %
10
is a registered Danfoss trademark
FC 300 Programming Guide
[Min-Max] 0% = 4 mA; 100%
Terminal X30/8 Output
, the