Danfoss FC 300 Programming Manual page 98

2. How to Programme
[52] MCO 305 0-20 mA
[53] MCO 305 4-20 mA
[100] Output frequency 0-20
mA
2
[101] Reference 0-20 mA
[102] Feedback
[103] Motor current 0-20 mA
[104] Torque rel to lim 0-20
mA
[105] Torque rel to rated
0-20 mA
[106] Power
[107] Speed
[108] Torque
[109] Max Out Freq 0-20 mA
[130] Output freq. 4-20 mA
[131] Reference 4-20 mA
[132] Feedback 4-20 mA
[133] Motor cur. 4-20 mA
[134] Torque % lim. 4-20 mA
[135] Torque % nom 4-20
mA
[136] Power 4-20 mA
[137] Speed 4-20 mA
[138] Torque 4-20 mA
[139] Bus ctrl. 0-20 mA
[140] Bus ctrl. 4-20 mA
[141] Bus ctrl. 0-20 mA, time-
out
[142] Bus ctrl. 4-20 mA, time-
out
[150] Max Out Freq 4-20 mA
6-51 Terminal 42 Output Min Scale
See the drawing below for details.
*
0% [0 – 200%]
6-52 Terminal 42 Output Max Scale
Range:
*
100 % [000 – 200%]
m A desired maximum current x
20 /
98
Scale the minimum output of the selected analog signal at terminal 42, 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. 6-52.
Function:
Scale the maximum output of the selected analog signal at terminal 42. 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:
100 %
®
MG.33.M3.02 - VLT is a registered Danfoss trademark
20
i e m A x
. . 10 : 100 = 200 %
10
FC 300 Programming Guide