6-50 Terminal 42 Output
Option:
Function:
[108] Torque
Torque reference related to 160% torque.
[109] Max Out
Freq
0 Hz = 0 mA,
parameter 4-19 Max Output
Frequency
= 20 mA.
[130] Output freq.
4-20mA
0 Hz = 4 mA, 100 Hz = 20 mA
[131] Reference
4-20mA
Parameter 3-00 Reference Range
[Min-Max]
0% = 4 mA; 100% = 20 mA
Parameter 3-00 Reference Range
[-Max-Max]
-100% = 4 mA; 0% = 12 mA; +100% = 20
mA
[132] Feedback
4-20mA
[133] Motor cur.
4-20mA
Value is taken from
. Inverter max. current (160%
current) is equal to 20 mA.
Example: Inverter norm current (11 kW) =
24 A. 160% = 38.4 A. Motor norm current =
22 A Read-out 11.46 mA.
16 mA x 22 A
38 . 4 A
+ 4 mA = 13 . 17 mA
In case the norm motor current is equal to
20 mA, the output setting of
parameter 6-62 Terminal X30/8 Max. Scale
is:
I
VLT
Max
x 100
I
Motor
Norm
= 38 . 4 x 100
22
= 175 %
[134] Torq.% lim
4-20 mA
The torque setting is related to setting in
parameter 4-16 Torque Limit Motor Mode
.
[135] Torq.% nom
4-20 mA
The torque setting is related to the motor
torque setting.
[136] Power
4-20mA
Taken from
parameter 1-20 Motor Power [kW]
[137] Speed
4-20mA
Taken from
parameter 3-03 Maximum
Reference
. 20 mA = Value in
parameter 3-03 Maximum Reference
.
[138] Torque
4-20mA
Torque reference related to 160% torque.
[139] Bus ctrl. 0-20
mA
An output value set from fieldbus process
data. The output will work independently of
internal functions in the frequency
converter.
[140] Bus ctrl. 4-20
mA
An output value set from fieldbus process
data. The output will work independently of
internal functions in the frequency
converter.
[141] Bus ctrl
0-20mA t.o.
Parameter 4-54 Warning Reference Low
defines the behavior of the analog output in
case of bus time-out.
[142] Bus ctrl
4-20mA t.o.
Parameter 4-54 Warning Reference Low
defines the behavior of the analog output in
case of bus time-out.
[150] Max Out Fr
4-20mA
0 Hz = 0 mA,
parameter 4-19 Max Output
Frequency
= 20 mA.
6-51 Terminal 42 Output Min Scale
Range:
Function:
0 %
*
[0 -
200 %]
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
parameter 6-50 Terminal 42 Output
.
6-52 Terminal 42 Output Max Scale
Range:
Function:
100
%
*
[0 -
200 %]
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:
20 mA/desired maximum current x 100 %
i . e . 10 mA : 20
10 x 100 = 200 %
130BA075.11
(mA)
0%
20
0/4
100%
Current
Analog
output Min
Scale
par. 6-51
Variable for
output
example: Speed
(RPM)
Analog
Output Max
Scale
par. 6-52
Figure 6.9 Output Max Scale
6-53 Terminal 42 Output Bus Control
Range:
Function:
0 %
*
[0 - 100 %] Holds the level of Output 42 if controlled by
bus.
Parameter Descriptions
Operating Instructions
MG34M422
Danfoss A/S © Rev. 2013-07-03 All rights reserved.
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Summary of Contents for VLT CDS 303
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