Danfoss FC 300 Programming Manual page 92

Parameter Descriptions
6-70 Terminal X45/1 Output
Option:
[107] Speed
0-20 mA
[108] Torque
3 3
ref. 0-20
mA
[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,
timeout
[142] Bus ctrl.
4-20 mA,
timeout
92
FC 300 Programming Guide
Function:
Taken from par. 3-03 Maximum Reference. 20 mA
= value in par. 3-03 Maximum Reference
Torque reference related to 160% torque.
In relation to par. 4-19 Max Output Frequency.
0 Hz = 4 mA, 100 Hz = 20 mA
Par. 3-00 [Min-Max] 0% = 4 mA; 100% = 20 mA
Par. 3-00 [-Max-Max] -100% = 4mA; 0% = 12 mA;
+100% = 20 mA
Value is taken from par. 16-37 Inv. Max. Current.
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
mA
= 9.17
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 38.4 x 100
=
I Motor
22
Norm
The torque setting is related to setting in
par. 4-16 Torque Limit Motor Mode.
The torque setting is related to the motor torque
setting.
Taken from par. 1-20 Motor Power [kW]
Taken from par. 3-03 Maximum Reference. 20 mA
= Value in 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.
Par. 4-54 Warning Reference Low defines the
behaviour of the analog output in case of bus
time-out.
Par. 4-54 Warning Reference Low defines the
behaviour of the analog output in case of bus
time-out.
MG.33.M9.02 - VLT
6-70 Terminal X45/1 Output
Option:
[150] Max Out
Freq 4-20
mA
6-71 Terminal X45/1 Output Min Scale
Range:
0.00% [0.00 -
*
200.00%]
6-72 Terminal X45/1 Output Max Scale
Range:
100% [0.00 -
*
200.00%]
= 175 %
6-73 Terminal X45/1 Output Bus Control
Range:
0.00% [0.00 - 100.00%] Holds the level of Analog Output 3
*
®
is a registered Danfoss trademark
Function:
In relation to par. 4-19 Max Output Frequency.
Function:
Scale the minimum output of the selected
analog signal at terminal X45/1, 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. 6-72 Terminal X45/1 Max. Scale.
Function:
Scale the maximum output of the selected
analog signal at terminal X45/1. 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 (example where desired max. output
is 10 mA):
I RANGE mA
x
100 %
I DESIRED MAX mA
20 − 4 mA
x
= 100 % = 160 %
mA
10
Function:
(terminal X45/1) if controlled by bus.