1. Parameter bytes
Parameter commands and replies (AK) Bits no. 12-15
are used for transferring parameter commands from
master to slave and the slave's processed reply 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 (dou-
ble word)
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/write text
Reply slave
⇒
master:
Bit no.
15 14 13 12
Reply
0
0
0
0
No reply
0
0
0
1
Parameter value transferred (word)
0
0
1
0
Parameter value transferred (double
word)
0
1
1
1
Command cannot be executed
1
1
1
1
Text transferred
If the command cannot be carried out, the slave will
send this reply (0111)
Command cannot be executed
and give the following error message in the parameter
value (PWE):
(reply 0111)
Error message
0
The parameter number used does not
exist
1
There is no write access to the param-
eter called
2
The data value exceeds the parame-
ter limits
3
The used sub-index does not exist
4
The parameter is not of the array type
5
The data type does not match the pa-
rameter called
17
Data change in the parameter called
is not possible in the present mode of
the frequency converter. E.g. some
parameters can only be changed
when the motor has stopped
130
There is no bus access to the param-
eter called
131
Data change is not possible because
factory Setup has been selected
Parameter number PNU)
Bits no. 0-10 are used for transmitting parameter num-
bers. The function of a given parameter can be sen
from the parameter description in the
Programming
section.
Index
Index is used together with the parameter number for
read/write access to parameters with an index, such
as parameter 615
Error code.
Index has 2 bytes - a lowbyte and a highbyte.
However, only the lowbyte is used. See example on
the following page.
VLT
®
6000 HVAC Series
158
MG.61.B5.02 - VLT
®
is a registered Danfoss trademark
Содержание VLT 6000 HVAC Series
Страница 31: ...Ordering form VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 31 Introduction to HVAC ...
Страница 63: ...Mechanical dimensions VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 63 Installation ...
Страница 75: ...VLT 6000 HVAC Series MG 61 B5 02 VLT is a registered Danfoss trademark 75 Installation ...
Страница 204: ...VLT 6000 HVAC Series 204 MG 61 B5 02 VLT is a registered Danfoss trademark ...