Danfoss VLT FC 100 Series Programming Manual page 85

Parameter Description
6-50 Terminal 42 Output
Option:
3 3
[0] No operation
[100] Output freq. 0-100
[101] Reference Min-Max Minimum reference - Maximum
[102] Feedback +-200%
[103] Motor cur. 0-Imax
[104] Torque 0-Tlim
[105] Torque 0-Tnom
[106] Power 0-Pnom
[107] Speed 0-HighLim
[113] Ext. Closed-loop 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 4-20mA
t.o.
[143] Ext. CL 1 4-20 mA
3-58
®
VLT HVAC Drive Programming Guide
Function:
Select the function of Terminal 42 as
an analog current output. A motor
current of 20 mA corresponds to
I .
max
0–100 Hz, (0–20 mA)
reference, (0–20 mA)
-200% to +200% of 20-14 Maximum
Reference/Feedb., (0–20 mA)
0 - Inverter Max. Current (16-37 Inv.
Max. Current), (0–20 mA)
0 - Torque limit (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 (4-13 Motor
Speed High Limit [RPM] and
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 20-14 Maximum
Reference/Feedb.
0 - Inverter Max. Current (16-37 Inv.
Max. Current)
0 - Torque limit (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%
MG11CD22 - VLT
6-50 Terminal 42 Output
Option:
[144] Ext. CL 2 4-20 mA
[145] Ext. CL 3 4-20 mA
NOTE!
Values for setting the minimum reference are found in
open-loop 3-02 Minimum Reference and for closed-loop
20-13 Minimum Reference/Feedb. - values for maximum
reference for open-loop are found in 3-03 Maximum
Reference and for closed-loop 20-14 Maximum Reference/
Feedb..
6-51 Terminal 42 Output Min Scale
Range:
0.00 % [0.00 - 200.00 %]
*
6-52 Terminal 42 Output Max Scale
Range:
100.00 % [0.00 - 200.00 %]
*
mA / desired maximum current × 100 %
20
20 mA
i . e . 10 mA : × 100 % = 200 %
10 mA
EXAMPLE 1:
Variable value= OUTPUT FREQUENCY, range = 0–100 Hz
Range needed for output = 0-50Hz
Output signal 0 or 4mA is needed at 0Hz (0% of range) -
set 6-51 Terminal 42 Output Min Scale to 0%
Output signal 20mA is needed at 50Hz (50% of range) - set
6-52 Terminal 42 Output Max Scale to 50%
20 mA
0/4 mA
0%
0Hz
Figure 3.28
® is a registered Danfoss trademark
Function:
0‒100%
0‒100%
Function:
Function:
50% 100%
50Hz 100Hz