Danfoss VLT HVAC Drive FC 102 Programming Manual page 88

Parameter Descriptions
6-50 Terminal 42 Output
Option:
[102] Feedback
+-200%
3 3
[103] Motor cur. 0-
Imax
[104] Torque 0-Tlim
[105] Torque 0-
Tnom
[106] Power 0-Pnom 0–Motor rated power, (0–20 mA).
[107] Speed 0-
HighLim
[113] Ext. Closed
Loop 1
[114] Ext. Closed
Loop 2
[115] Ext. Closed
Loop 3
[130] Out frq 0-100
4-20mA
[131] Reference
4-20mA
[132] Feedback
4-20mA
[133] Motor cur.
4-20mA
[134] Torq.0-lim
4-20 mA
[135] Torq.0-nom
4-20mA
[136] Power 4-20mA 0–Motor rated power.
[137] Speed 4-20mA 0–Speed high limit (parameter 4-13 Motor
[139] Bus ctrl.
[140] Bus ctrl. 4-20
mA
[141] Bus ctrl t.o.
[142] Bus ctrl t.o.
4-20mA
[143] Ext. CL 1
4-20mA
[144] Ext. CL 2
4-20mA
[145] Ext. CL 3
4-20mA
86
®
VLT HVAC Drive FC 102
Function:
-200% to +200% of
parameter 20-14 Maximum Reference/Feedb.,
(0–20 mA).
0–Inverter Max. Current
(parameter 16-37 Inv. Max. Current), (0-20
mA).
0–Torque limit (parameter 4-16 Torque Limit
Motor Mode), (0–20 mA).
0–Motor rated torque, (0–20 mA).
0–Speed High Limit (parameter 4-13 Motor
Speed High Limit [RPM] and
parameter 4-14 Motor Speed High Limit
[Hz]), (0–20 mA).
0–100%, (0–20 mA).
0–100%, (0–20 mA).
0–100%, (0–20 mA).
0–100 Hz.
Minimum reference - Maximum reference.
-200% to +200% of
parameter 20-14 Maximum Reference/Feedb..
0–Inverter Maximum current
(parameter 16-37 Inv. Max. Current).
0–Torque limit (parameter 4-16 Torque Limit
Motor Mode).
0–Motor rated torque.
Speed High Limit [RPM] and
parameter 4-14 Motor Speed High Limit
[Hz]).
0–100%, (0–20 mA).
0–100%.
0–100%, (0–20 mA).
0–100%.
0–100%.
0–100%.
0–100%.
Danfoss A/S © 03/2015 All rights reserved.
6-50 Terminal 42 Output
Option: Function:
[184] Mirror AI53
mA
[185] Mirror AI54
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 - Scale for the maximum output (20 mA) of the
% 200 %] 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.
Current
(mA)
20
0/4
0% Analogue
output
Min Scale
par. 6-51
Illustration 3.30 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 %
20 mA
i . e . 10mA: × 100 % = 200 %
10 mA
Analogue 100% Variable for
output
Output
example:
Max Scale
Speed (RPM)
par. 6-52
MG11CE02