Danfoss VLT AutomationDrive FC 301 Programming Manual page 121

Parameter Descriptions
6-70 Terminal X45/1 Output
Option: Function:
Example: Inverter normal current (11 kW) =
24 A. 160% = 38.4 A. Motor normal current
= 22 A, readout 11.46 mA.
20 mA x 22 A
38 . 4 A
In case the normal motor current is equal
to 20 mA, the output setting of
parameter 6-52 Terminal 42 Output Max
Scale is:
I x 100
VLT
Max
I
Motor
Norm
[104] Torque rel to The torque setting is related to the setting
lim 0-20 mA in parameter 4-16 Torque Limit Motor Mode.
[105] Torque rel to The torque is related to the motor torque
rated motor setting.
torque 0-20
mA
[106] Power 0-20 Taken from parameter 1-20 Motor Power
mA [kW].
[107] Speed 0-20 Taken from parameter 3-03 Maximum
mA Reference. 20 mA = value in
parameter 3-03 Maximum Reference.
[108] Torque ref. Torque reference related to 160% torque.
0-20 mA
[109] Max. out freq In relation to parameter 4-19 Max Output
0-20 mA Frequency.
[130] Output freq. 0 Hz = 4 mA, 100 Hz = 20 mA.
4-20 mA
[131] Reference Parameter 3-00 Reference Range [Min.-Max.]
4-20 mA 0% = 4 mA; 100% = 20 mA.
Parameter 3-00 Reference Range [-Max-Max.]
-100% = 4 mA; 0% = 12 mA; +100% = 20
mA.
[132] Feedback 4-20
mA
[133] Motor cur. The value is taken from
4-20 mA parameter 16-37 Inv. Max. Current. The
inverter maximum current (160% current)
is equal to 20 mA.
Example: Inverter normal current (11 kW) =
24 A. 160% = 38.4 A. Motor normal current
= 22 A, readout 11.46 mA.
16 mA x 22 A
38 . 4 A
In case the normal motor current is equal
to 20 mA, the output setting of
parameter 6-52 Terminal 42 Output Max
Scale is:
I x 100
VLT
Max
I
Motor
Norm
[134] Torque % lim. The torque setting is related to the setting
4-20 mA in parameter 4-16 Torque Limit Motor Mode.
[135] Torque % The torque setting is related to the motor
nom 4-20 mA torque setting.
[136] Power 4-20 Taken from parameter 1-20 Motor Power
mA [kW].
MG33MO02
Programming Guide
= 11 . 46 mA
38 . 4 x 100
= = 175 %
22
= 9 . 17 mA
38 . 4 x 100
= = 175 %
22
Danfoss A/S © 01/2018 All rights reserved.
6-70 Terminal X45/1 Output
Option: Function:
[137] Speed 4-20 Taken from parameter 3-03 Maximum
mA Reference. 20 mA = value in
parameter 3-03 Maximum Reference.
[138] Torque 4-20 Torque reference related to 160% torque.
mA
[139] Bus ctrl. 0-20 An output value set from fieldbus process
mA data. The output works independently of
internal functions in the frequency
converter.
[140] Bus ctrl. 4-20 An output value set from fieldbus process
mA data. The output works independently of
internal functions in the frequency
converter.
[141] Bus ctrl. 0-20 Parameter 4-54 Warning Reference Low
mA, timeout defines the behavior of the analog output
in case of a fieldbus timeout.
[142] Bus ctrl. 4-20 Parameter 4-54 Warning Reference Low
mA, timeout defines the behavior of the analog output
in case of a fieldbus timeout.
[150] Max. out freq In relation to parameter 4-19 Max Output
4-20 mA Frequency.
6-71 Terminal X45/1 Output Min. Scale
Range: Function:
0.00% [0.00 - Scale the minimum output of the selected
*
200.00%] analog signal at terminal X45/1 as a
percentage of the maximum signal value.
For example, if 0 mA (or 0 Hz) is required
at 25% of the maximum output value, then
program 25%. Scaling values up to 100%
can never exceed the corresponding setting
in parameter 6-72 Terminal X45/1 Max. Scale.
6-72 Terminal X45/1 Output Max. Scale
Range: Function:
100% [0.00 - Scale the maximum output of the selected
*
200.00%] 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
required output current at a value between
0–100% of the full-scale output, program
the percentage value in the parameter, for
example 50% = 20 mA. If a current 4–20 mA
is required at maximum output (100%),
calculate the percentage value as follows
(example where required maximum output
is 10 mA):
I mA
RANGE
I mA
DESIRED MAX
20 − 4 mA
= x 100 % = 160 %
10 mA
x 100 %
119
3 3