Danfoss VLT HVAC Drive FC 102 Instruction Manual page 100

How to Program
6-50 Terminal 42 Output
Option:
[104] Torque 0-Tlim
[105] Torque 0-Tnom
[106] Power 0-Pnom
[107] Speed 0-
HighLim
[113] Ext. Closed-loop
6 6
1
[114] Ext. Closed-loop
2
[115] Ext. Closed-loop
3
[130] Out fr 0-100
4-20
[131] Reference
4-20mA
[132] Feedback
4-20mA
[133] Motor cur.
4-20mA
[134] Torq.0-lim
4-20mA
[135] Torq.0-nom
4-20mA
[136] Power 4-20mA
[137] Speed 4-20mA
[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 4-20
mA
[144] Ext. CL 2 4-20
mA
[145] Ext. CL 3 4-20
mA
98
®
VLT HVAC Drive FC 102
Function:
0 - Torque limit (parameter 4-16 Torque
Limit Motor Mode), (0–20 mA)
0 - Motor rated torque, (0–20 mA)
0 - Motor rated power, (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 Max. Current
(parameter 16-37 Inv. Max. Current)
0 - Torque limit (parameter 4-16 Torque
Limit Motor Mode)
0 - Motor rated torque
0 - Motor rated power
0 - Speed High Limit (4-13 and 4-14)
0–100%, (0–20 mA)
0–100%
0–100%, (0–20 mA)
0–100%
0–100%
0–100%
0–100%
Danfoss A/S © 08/2014 All rights reserved.
NOTICE!
Values for setting the minimum reference are found in
open-loop parameter 3-02 Minimum Reference and for
closed-loop parameter 20-13 Minimum Reference/Feedb. -
values for maximum reference for open-loop are found
in parameter 3-03 Maximum Reference and for closed-
loop parameter 20-14 Maximum Reference/Feedb..
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:
100 % [0 - 200 %]
*
20 mA/desired maximum current × 100 %
i . e . 10mA: 20 mA
× 100 % = 200 %
10 mA
EXAMPLE 1:
Variable value= OUTPUT FREQUENCY, range = 0–100 Hz
Range needed for output = 0–50 Hz
Output signal 0 or 4mA 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%
20 mA
0/4 mA
0%
0Hz 50Hz
Figure 6.14
Function:
50% 100%
100Hz
MG11F522