VLT® 5000 Crane
Appendix
PCD 1
PCD 2
Process block
3. Text block, used for reading or writing
texts via the data block.
PKE
IND
Ch1
Ch2
Ch
n
PCD1 PCD2
Text block
Process
block
1. Parameter bytes
Commands and replies (AK)
Bits no. 12-15 are used for transmitting commands
from master to slave and the slave
’
s processed
replies back to the master.
Parameter commands master
⇒
slave
Bit no.
15 14 13 12 Parameter command
0
0
0
0
No command
0
0
0
1
Read parameter value
0
0
1
0
Write parameter value in RAM
(word)
0
0
1
1
Write parameter value in RAM
(double word)
0
1
0
0
Read parameter description
element
1
1
0
1
Write parameter value in RAM
and EEprom (double word)
1
1
1
0
Write parameter value in RAM
and EEprom (word)
1
1
1
1
Read text
Reply slave
⇒
master
Bit no.
Response
15 14 13 12
0
0
0
0
No response
0
0
0
1
Parameter value transferred
(word)
0
0
1
0
Parameter value transferred
(double word)
0
0
1
1
Parameter description element
transferred
0
1
1
1
Command cannot be performed
1
1
1
1
Text transferred
If the command cannot be executed, the slave will
send this reply: 0111 and give the following error
message in the parameter value (PWE):
Error code
(reply 0111)
Error message
0
The parameter number used
does not exist
1
There is no write access to the
parameter called
2
Data value exceeds
the parameter limits
3
The sub index used
does not exist
4
The parameter is not the array type
5
The data type does not match the
parameter called
17
Data change in the parameter called
is not possible in
the present mode of the frequency
converter.
Eg. someparameters can only be
changed when the
motor has stopped
130
There is no bus access to the
parameter called
131
Data change is not possible because
factory Setup is selected
Parameter number (PNU)
Bits no. 0-10 are used for transmitting parameter
numbers. The function of a given parameter
can be seen from the parameter description
in the
Programming
section.
Index
MG.50.N4.02 - VLT is a registered Danfoss trademark
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