Danfoss VLT AutomationDrive FC 300 Programming Manual page 122

FC 300 Programming Guide
[133] Motor cur. 4-20mA
[134] Torq.% lim 4-20 mA
[135] Torq.% nom 4-20 mA
[136] Power 4-20mA
[137] Speed 4-20mA
[138] Torque 4-20mA
[139] Bus ctrl. 0-20 mA
[140] Bus ctrl. 4-20 mA
[141] Bus ctrl 0-20mA t.o.
[142] Bus ctrl 4-20mA t.o.
[149] Torque % lim 4-20mA
[150] Max Out Fr 4-20mA
6-51 Terminal 42 Output Min Scale
Range:
0.00 %* [0.00 - 200.00 %]
6-52 Terminal 42 Output Max Scale
Range:
100.00 %* [0.00 - 200.00 %]
Inv. Max. Current
Value is taken from par. 16-37
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
16 22
mA
+ 4 = 13.17
A
38.4
In case the norm motor current is equal to 20 mA, the output setting of par. 6-62
Max. Scale
is:
I VLT x
100
Max x
38.4 100
=
I Motor
22
Norm
The torque setting is related to setting in par. 4-16
The torque setting is related to the motor torque setting.
Motor Power [kW]
Taken from par. 1-20
Taken from par. 3-03 Maximum Reference
Torque reference related to 160% torque.
An output value set from fieldbus process data. The output will work independently of internal
functions in the frequency converter.
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.
Analogue output at zero torque = 12 mA. Motoric torque will increase the output current to max
torque limit 20 mA (set in par. 4-16
Generative torque will decrease the output to torque limit Generator Mode (set in par. 4-17
Limit Generator Mode
)
Torque Limit Motor Mode
Ex: par. 4-16
20 mA = 200% Motoric and 4 mA = 200% Generatoric.
Max Output Frequency
In relation to par. 4-19
Function:
Scale for the minimum output (0 or 4 mA) of the analogue signal at terminal 42.
Set the value to be the percentage of the full range of the variable selected in par. 6-50
42 Output
.
Function:
Scale the maximum output of the selected analog signal at terminal 42. Set the value to the maxi-
mum 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
®
MG.33.M8.02 - VLT is a registered Danfoss trademark
3 Parameter descriptions
. Inverter max. current (160% current) is equal to
mA
= 175 %
Torque Limit Motor Mode
. 20 mA = Value in par. 3-03
defines the behaviour of the analog output in case of bus time-
defines the behaviour of the analog output in case of bus time-
Torque Limit Motor Mode
).
Torque Limit Generator Mode
: 200% and par. 4-17
.
Terminal X30/8
3
.
Maximum Reference .
Torque
: 200%.
Terminal
121