Danfoss VLT CDS302 User Manual

6-16 Terminal 53 Filter Time Constant
Range: Function:
0.001 s* [0.001 -
10.000 s]
Enter the time constant. This is a first-
order digital low pass filter time
constant for suppressing electrical noise
in terminal 53. A high time constant
value improves dampening but also
increases the time delay through the
filter.
NOTE
This parameter cannot be adjusted while the motor is
running.
6.7.3 6-2* Analog Input 2
Parameters for configuring the scaling and limits for
analog input 2 (terminal 54).
NOTE
Analog input 53 is preset for usage with “open loop”
control on 0-10 V. Terminal 54 is preset for “Process Loop”
control using a pressure sensor AKS with a pressure range
of -1 : 12 bar.
6-20 Terminal 54 Low Voltage
Range: Function:
1.00V* [-10.0 - par.
6-11]
This analog input scaling value
should correspond to the minimum
output value of the pressure sensor
6-21 Terminal 54 High Voltage
Range: Function:
5.00V* [6-10 to 10 V] This analog input scaling value should
correspond to the maximum output
value of the pressure sensor.
6-22 Terminal 54 Low Current
Range: Function:
4.0mA * [0.0 to par. 6-13
mA]
This reference signal should
correspond to the minimum output
value of the pressure sensor.
6-23 Terminal 54 High Current
Range: Function:
20.0mA * [6-12 to 20 mA] This reference signal should
correspond to the maximum output
value of the pressure sensor.
6-24 Terminal 54 Low Ref./Feedb.
Range: Function:
-1 (bar) [Value] Enter the analog input scaling value that
corresponds to the minimum reference
feedback value set in 3-02 Minimum Reference.
6-25 Terminal 54 High Ref./Feedb.
Range: Function:
12 (bar) [Value ] Enter the analog input scaling value that
corresponds to the maximum reference
feedback value set in 3-03 Maximum
Reference.
6-26 Terminal 54 Filter Time Constant
Range: Function:
0.001 s* [0.001 -
10.000 s]
Enter the time constant. This is a first-
order digital low pass filter time
constant for suppressing electrical noise
in terminal 54. A high time constant
value improves dampening but also
increases the time delay through the
filter.
NOTE
This parameter cannot be adjusted while the motor is
running.
6-50 Terminal 42 Output
Option: Function:
Select the function of Terminal 42 as an
analog current output. Depending on the
selection the output is either a 0-20 mA or
4-20 mA output. The current value can be
read out in LCP in 16-65 Analog Output 42
[mA].
[0] No
operation
There is no signal on the analog output.
[100] Output
frequency
0-20 mA
0 Hz = 0 mA; 100 Hz = 20 mA.
[101] Reference
0-20 mA
3-00 Reference Range [Min - Max] 0% = 0 mA;
100% = 20 mA
3-00 Reference Range [-Max - Max] -100% = 0
mA; 0% = 10 mA; +100% = 20 mA
[103] Motor
current
0-20 mA
Value is taken from 16-37 Inv. Max. Current.
Inverter max. current (160% current) is equal
to 20 mA.
Example: Inverter norm current (11 kW) = 24
A. 160% = 38.4 A. Motor norm current = 22
A Read-out 11.46 mA.
20
mA x 22 A
38.4 A
= 11.46 mA
In case the norm motor current is equal to
20 mA, the output setting of 6-52 Terminal 42
Output Max Scale is:
I
VLT
Max
x 100
I
Motor
Norm
=
38.4 x 100
22
= 175 %
[104] Torque rel
to lim 0-20
mA
The torque setting is related to setting in
4-16 Torque Limit Motor Mode
Parameter Descriptions
Operating Instructions VLT
®
CDS302 and CDS303
70 MG34M302 - VLT
®
is a registered Danfoss trademark/Commercial Compressor
6
6

Danfoss VLT CDS302 Specifications

General

Brand	Danfoss
Model	VLT CDS302
Category	DC Drives
Language	English