Danfoss MCO 305 Design Manual page 203

MCO 305 Design Guide
Set the resolution of the absolute encoder connec-
ted to Encoder 2 interface (X55) in positions per
revolution. Encoder resolution can be found on
encoder nameplate or datasheet.
Note: Parameter only visible when par. 32-02 ≠ 0
32-04 Absolute Encoder Baudrate X55
ENCODERBAUD
Option
600
1200
2400
4800
9600
19200
38400
Function
Select the baud rate of the attached encoder.
Note: This parameter is available with firmware
version 6.7.40.
32-05 Absolute Encoder Data Length
ENCODERDATLEN
Range [Unit]
8 – 37 [Bit]
Function
Specify the number of data bit's for the connected
absolute encoder, see encoder data sheet. This is
required for MCO 305 to generate the correct
number of clock bits.
Note: Parameter only visible when par. 32-02 ≠ 0
32-06 Absolute Encoder Clock Frequency
ENCODERFREQ
Range [Unit]
78.125 – 2000.000 [kHz]
Function
Specifies the frequency of the absolute encoder
clock signal generated by MCO 305. Set a frequen-
cy appropriate for the connected encoder.
Note: Parameter only visible when par. 32-02 ≠ 0
default setting
__ Parameter Reference __
[0]
[1]
[2]
[3]
[4]
[5]
[6]
25
262.000
[ ] value for use in communication via serial communication port
®
MG.33.L5.02 – VLT is a registered Danfoss trademark
32-07 Absolute Encoder Clock Generation
ENCODERCLOCK
Option
Off
On
Function
Select whether encoder 0 shall generate an
absolute encoder clock signal or not.
Select Off [0] if more MCO 305's are connected to
the same absolute encoder. Only one device (MCO
305) is allowed to generate the clock signal and
only one device (encoder or MCO 305) is allowed to
generate the data signal when multiple MCO 305's
are interconnected.
Select On [1] if the MCO 305 is connected to just
one absolute encoder.
Note: Parameter only visible when par. 32-02 ≠ 0
32-08 Absolute Encoder Cable Length
ENCODERDELAY
Range [Unit]
0 – 300 m
Function
The absolute encoder (SSI) clock and data signals
will be out of synchronization if the signal delay
caused by the encoder cable is too long. MCO 305
is automatically compensating the cable delay
when the cable length is known. The cable delay
compensation is based on a cable delay of approxi-
-9
mately 6ns (6 * 10 seconds) per meter.
Specify the total cable length (in meters) between
MCO 305 and the absolute encoder.
Note: Parameter only visible when par. 32-02 ≠ 0
[0]
[1]
0
203