Danfoss VLT FC 300 Operating Instructions Manual page 21

FC 300 Extended Relay Card Operating In-
structions
6-71 Terminal X45/1 Output Min Scale
Range:
0.00%* [0.00 - 200.00%]
6-72 Terminal X45/1 Output Max Scale
Range:
100%* [0.00 - 200.00%]
I RANGE m A
x
100 % =
I DESIRED MAX m A
6-73 Terminal X45/1 Output Bus Control
Range:
0.00%* [0.00 - 100.00%]
6-74 Terminal X45/1 Output Timeout Preset
Range:
0.00%* [0.00 - 100.00%]
5.3.2. 6-8* Analog Output 4
Parameters for configuring the scaling and limits for analog output 4. Terminal X45/3 and X45/4. Analog outputs are current outputs: 0/4 – 20 mA.
Resolution on analog output is 11 bit.
6-80 Terminal X45/3 Output
Option:
[0] * No operation
Function:
Scale the minimum output of the selected analog signal at terminal X45/1, as a percentage of the
maximum signal value. E.g. if 0 mA (or 0 Hz) is desired at 25% of the maximum output value, then
programme 25%. Scaling values up to 100% can never be higher than the corresponding setting
in par. 6-72.
Function:
Scale the maximum output of the selected analog signal at terminal X45/1. Set the value to the
maximum value of the current signal output. Scale the output to give a current lower 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 full-scale output, programme the percentage
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 (example where desired max. output is
10 mA):
m A
20 − 4
x
100 % = 160 %
m A
10
Function:
Holds the level of Analog Output 3 (terminal X45/1) if controlled by bus.
Function:
Holds the preset level of Analog Output 3 (terminal X45/1).
In case of a bus timeout and a timeout function is selected in par. 6-70 the output will preset to this
level.
Function:
Select the function of Terminal X45/3 as an analog current output.
Same selections available as for par. 6-70
MI.33.G2.02 - VLT® is a registered Danfoss trademark
5. Parameter Set-up
5
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