Parameter Lists; Conversion - Danfoss VLT CDS302 Operating Instructions Manual

Parameter Descriptions

6.16 Parameter Lists

Changes during operation
"TRUE" means that the parameter can be changed while
the frequency converter is in operation. "FALSE" means
that the frequency converter must be stopped before a
change can be made.
4-Set-up
'All set-ups': the parameter can be set individually in each
of the four set-ups, i. e. one single parameter can have
four different data values.
'1 set-up': data value will be the same in all set-ups.
Data Description
6 6
type
2 Integer 8
3 Integer 16
4 Integer 32
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
9 Visible String
33 Normalized value 2 bytes
35 Bit sequence of 16 boolean variables
54 Time difference w/o date
Table 6.16

6.16.1 Conversion

The various attributes of each parameter are displayed in
Factory Setting. Parameter values are transferred as whole
numbers only. Conversion factors are therefore used to
transfer decimals.
4-12 Motor Speed Low Limit [Hz] has a conversion factor of
0.1. To preset the minimum frequency to 10 Hz, transfer
the value 100. A conversion factor of 0.1 means that the
value transferred is multiplied by 0.1. The value 100 is
therefore read as 10.0.
Examples:
0s ⇒ conversion index 0
0.00s ⇒ conversion index -2
0ms ⇒ conversion index -3
0.00ms ⇒ conversion index -5
122
Operating Instructions VLT
Type
Int8
Int16
Int32
Uint8
Uint16
Uint32
VisStr
N2
V2
TimD
®
MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor
®
CDS302 and CDS303
Conversion index
100
75
74
67
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
Table 6.17 Conversion Table
Conversion factor
1000000
100000
10000
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001
0.000001
0.0000001