Danfoss VLT CDS302 Operating Instructions Manual page 72

Parameter Descriptions
6-50 Terminal 42 Output
Option:
[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.
6 6
0-20 mA
[140] Bus ctrl.
4-20 mA
[141] Bus ctrl
0-20mA t.o.
[142] Bus ctrl
4-20mA t.o.
[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 %]
*
20 mA / desired maximum current x 100 %
20
i . e . 10 mA : x 100 = 200 %
10
72
Operating Instructions VLT
Function:
The torque setting is related to setting in
4-16 Torque Limit Motor Mode.
The torque setting is related to the motor
torque setting.
Taken from 1-20 Motor Power [kW]
Taken from 3-03 Maximum Reference. 20 mA
= Value in 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.
4-54 Warning Reference Low defines the
behaviour of the analog output in case of
bus time-out.
4-54 Warning Reference Low defines the
behaviour of the analog output in case of
bus time-out.
0 Hz = 0 mA,4-19 Max Output Frequency = 20
mA.
Function:
Scale for the minimum output (0 or 4
mA) of the analog signal at terminal 42.
Set the value to be the percentage of
the full range of the variable selected in
6-50 Terminal 42 Output.
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:
®
MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor
®
CDS302 and CDS303
Current
(mA)
20
0/4
0% Analogue Analogue
output Output
Min Scale Max Scale
par. 6-93 par. 6-94
Illustration 6.8
6-53 Terminal 42 Output Bus Control
Range: Function:
0.00 % [0.00 - 100.00 %] Holds the level of Output 42 if
*
controlled by bus.
100% Variable
for
output
example:
Speed
(RPM)