Danfoss vlt FC 102 Programming Guide

6-50 Terminal 42 Output
Option: Function:
[117] Shaft Power
[118] Shaft Power
4-20mA
[121] Air pres. to
Flow
[122] Air pres. to
Flow 4-20mA
[130] Out frq 0-100
4-20mA
0–100 Hz.
[131] Reference
4-20mA
Minimum reference–Maximum
reference.
[132] Feedback
4-20mA
-200% to +200% of
parameter 20-14 Maximum
Reference/Feedb.
[133] Motor cur.
4-20mA
0–Inverter maximum current
(parameter 16-37 Inv. Max. Current).
[134] Torq.0-lim 4-20
mA
0–Torque limit
(parameter 4-16 Torque Limit Motor
Mode).
[135] Torq.0-nom
4-20mA
0–Motor rated torque.
[136] Power 4-20mA 0–Motor rated power.
[137] Speed 4-20mA 0–Speed high limit
(parameter 4-13 Motor Speed High
Limit [RPM] and
parameter 4-14 Motor Speed High
Limit [Hz]).
[139] Bus ctrl. 0–100%, (0–20 mA).
[140] Bus ctrl. 4-20
mA
0–100%.
[141] Bus ctrl t.o. 0–100%, (0–20 mA).
[142] Bus ctrl t.o.
4-20mA
0–100%.
[143] Ext. CL 1
4-20mA
0–100%.
[144] Ext. CL 2
4-20mA
0–100%.
[145] Ext. CL 3
4-20mA
0–100%.
[184] Mirror AI53
mA
[185] Mirror AI54
mA
[186] Pressure
Sensor 4
[187] Pressure
Sensor 4 (4-20
mA)
6-51 Terminal 42 Output Min Scale
Range: Function:
0 %* [0 - 200 %] Scale for the minimum output
(0 mA 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 for the maximum output (20
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.
e30ba075.14
(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
Illustration 3.31 Output Current
vs Reference Variable
It is possible to obtain a value
lower than 20 mA at full scale by
programming values >100% by
using a formula as follows:
20mA/desiredmaximumcurrent × 100 %
i . e . 10mA: 
20mA
10mA
× 100 % = 200 %
Example 1:
Variable value = output frequency, range = 0–100 Hz.
Range needed for output = 0–50 Hz.
Output signal 0 mA or 4 mA is needed at 0 Hz (0% of
range). Set parameter 6-51 Terminal 42 Output Min Scale to
0%.
Output signal 20 mA is needed at 50 Hz (50% of range).
Set parameter 6-52 Terminal 42 Output Max Scale to 50%.
Parameter Descriptions Programming Guide
M0010001 Danfoss A/S © 10/2019 All rights reserved. 111
3 3

Danfoss vlt FC 102 Specifications

General

Brand	Danfoss
Model	vlt FC 102
Category	DC Drives
Language	English