Danfoss FC 300 Programming Manual page 91

Parameter Descriptions
6-60 Terminal X30/8 Output
Option: Function:
[149] Torque % Torque % Lim 4-20mA: Torque reference.
lim par. 3-00 Reference Range [Min-Max] 0% = 4 mA;
4-20mA 100% = 20mA
Par. 3-00 Reference Range [-Max - Max] -100% = 4
mA; 0% = 12mA; +100% = 20mA
[150] Max Out In relation to par. 4-19 Max Output Frequency.
Fr
4-20mA
6-61 Terminal X30/8 Min. Scale
Range: Function:
0.00 [0.00 - Scales the minimum output of the selected
% 200.00 %] 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 corresponding setting in
par. 6-62 Terminal X30/8 Max. Scale if value is
below 100%.
This parameter is active when option module
MCB 101 is mounted in the frequency convert-
er.
6-62 Terminal X30/8 Max. Scale
Range: Function:
100.00 [0.00 - Scales the maximum output of the selected
% 200.00 %] 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 percent-
age 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:
mA desired maximum current x
20 /
20 − 4
i e mA x
. . 10 : 100 = 160 %
10
6-63 Terminal X30/8 Bus Control
Range: Function:
0.00 % [0.00 - 100.00 %] Holds the level of Output X30/8 if
*
controlled by bus.
FC 300 Programming Guide
6-64 Terminal X30/8 Output Timeout Preset
Range:
0.00 %
3.8.8 6-7* Analog Output 3 MCB 113
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]
[52]
[53]
[100] Output
[101] Reference
[102] Feedback
[103] Motor
100 %
[104] Torque rel
[105] Torque rel
[106] Power
®
MG.33.M9.02 - VLT is a registered Danfoss trademark
Function:
[0.00 - Holds the preset level of Output X30/8.
*
100.00 %] In case of a bus timeout and a timeout
function is selected in par. 6-60 Terminal
X30/8 Output, the output will preset to this
level.
Function:
Select the function of Terminal X45/1 as an
analog current output.
No When no signal on the analog output.
operation
MCO 305
0-20 mA
MCO 305
4-20 mA
0 Hz = 0 mA; 100 Hz = 20 mA.
frequency
0-20 mA
Par. 3-00 [Min - Max] 0% = 0 mA; 100% = 20 mA
0-20 mA Par. 3-00 [-Max - Max] -100% = 0 mA; 0% = 10
mA; +100% = 20 mA
Value is taken from par. 16-37 Inv. Max. Current.
current Inverter max. current (160% current) is equal to
0-20 mA 20 mA.
Example: Inverter norm current (11 kW) = 24 A.
160 % = 38.4 A. Motor norm current = 22 A
Read-out 11.46 mA.
mA x A
20 22
= 11.46
A
38.4
In case the norm motor current is equal to 20
mA, the output setting of par. 6-52 Terminal 42
Output Max Scale is:
I VLT x
100
Max
=
I Motor
Norm
The torque setting is related to setting in
to lim par. 4-16 Torque Limit Motor Mode
0-20 mA
The torque is related to the motor torque
to rated setting.
motor
torque
0-20 mA
Taken from par. 1-20 Motor Power [kW].
0-20 mA
mA
x
38.4 100
= 175 %
22
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