1024
Incr x
126
x
117
x
20
x
510
x
π
x
10
x
11
x
22
27
x
18
x
40
x
1024
Incr x
97
x
43
x
27
x
102
x
π
Reduce by Pi and 1024 incr.:
126
x
117
x
20
x
510
x
10
x
11
x
22
27
x
18
x
40
x
97
x
43
x
27
x
102
Reduce further:
7
x
5
x
54
x
11
x
22
x
117
27
x
97
x
43
x
27
This gives a ratio of
4954950
3040659
This is an absolute value, as it contains no infinite number sequences and no rounded values.
2.4. Hardware
2.4.1. VLT Control Card Terminals
The terminals on the control card are allocated for synchronising controller functions the following
parameter settings should therefore not be changed in synchronising mode (set-up 1):
Digital inputs 18, 19, 27, 32 and 33
Parameters 510–515 are set to
No operation
(default setting), then the inputs are ignored by the
control card but they are used as inputs for the synchronising controller.
Analogue inputs 53, 54
Parameters 315, 316 and 317 are set to
No function
, then the inputs are ignored by the control
card but they are used as inputs to the synchronising controller.
Digital/analogue outputs 42
Parameters 650 are set to:
MCO 0 … 20 mA [52] analogue output
2.5. Technical Data
2.5.1. Introduction
Technical data on the control card terminals can be found in the
VLT Automation Drive FC 300
Design Guide.
2.5.2. Option Card Terminals
There are two encoder interfaces, which coveers the following functions:
•
Feedback encoder input
•
Master encoder input / virtual master output
2. Introduction
Syncronising Controller MCO 350 Operating
Instructions
14
MG.33.Q1.02 - VLT
®
is a registered Danfoss trademark
2