Danfoss VLT Series Programming Manual page 191

Parameter Description
26-31 Terminal X42/5 High Voltage
Range:
10.00 V [
*
10.00 V]
3 3
26-34 Term. X42/5 Low Ref./Feedb. Value
Range:
0.000 [-999999.999 -
*
999999.999 ]
26-35 Term. X42/5 High Ref./Feedb. Value
Range:
100.000 [-999999.999 -
*
999999.999 ]
26-36 Term. X42/5 Filter Time Constant
Range:
0.001 s [0.001 -
*
10.000 s]
26-37 Term. X42/5 Live Zero
Option:
[0] Disabled
[1] Enabled
*
3.24.5 26-4* Analog Out X42/7
Parameters for configuring the scaling and output function
for analog output, terminal X42/7.
26-40 Terminal X42/7 Output
Option:
[0] No operation
*
190
Function:
par. 6-30 - Enter the high voltage value. This
analog input scaling value should
correspond to the high reference/
feedback value set in 26-35 Term. X42/5
High Ref./Feedb. Value.
Function:
Enter the analog input scaling
value that corresponds to the low
voltage value set in 26-30 Terminal
X42/5 Low Voltage.
Function:
Enter the analog input scaling
value that corresponds to the
high voltage value set in
26-21 Terminal X42/3 High
Voltage.
Function:
Enter the time constant. This is a first-
order digital low pass filter time constant
for suppressing noise in terminal X42/5. A
high time constant value improves
dampening but also increases the time
delay through the filter. This parameter
cannot be adjusted while the motor is
running.
Function:
This parameter makes it possible to enable the
Live Zero monitoring. E.g. where the analog input
is a part of the frequency converter control,
rather than being used as part of a decentral I/O
system, such as a Building Management System.
Function:
Set the function of terminal X42/7 as
an analog voltage output.
MG.11.CC.02 - VLT
®
VLT HVAC Drive Programming Guide
26-40 Terminal X42/7 Output
Option:
[100] Output freq. 0-100 0 - 100 Hz, (0-20 mA)
[101] Reference Min-
Max
[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 0 - 100%, (0-20 mA)
[114] Ext. Closed Loop 2 0 - 100%, (0-20 mA)
[115] Ext. Closed Loop 3 0 - 100%, (0-20 mA)
[139] Bus ctrl.
[141] Bus ctrl t.o.
26-41 Terminal X42/7 Min. Scale
Range:
0.00
%
*
®
is a registered Danfoss trademark
Function:
Minimum reference - Maximum
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)
Function:
[0.00 - Scale the minimum output of the selected
200.00 %] analog signal at terminal X42/7, as a
percentage of the maximum signal level. E.g.
if a 0 V (or 0 Hz) is desired at 25% of the
maximum output value. Then programme
25%. Scaling values up to 100% can never
be higher than the corresponding setting in
26-42 Terminal X42/7 Max. Scale.
See principle graph for 6-51 Terminal 42
Output Min Scale.