FCM 300 / FCD 300 / VLT
®
2800 / DP V1 PROFIBUS
Station
address
■
Station address
The station address of slave can be selected via
-
Hardware switch (only FCD 300)
-
Parameter 918 via bus or LCP2
-
Command "Set Station Address" of Profibus DP
The address via the hardware switch is valid, if
the switch is set between 0-125. All selections via
parameter 918 or "Set Station Address" command
will be rejected. The address setting will only be
effective at power up. Changing during run time
will be effective at next power up.
The setting of address via parameter 918 is possible,
if the hardware switch is set to 126 or 127 (factory
setting). A new address is effective at a new power up.
The setting of the address via the "Set Station
Address" command is possible, if the hardware switch
is set to 126 or 127 (factory setting). By the "Set
Station Address" command it is possible to lock the
programmed address, which makes it impossible to
change the address by this command. The address
setting will be unlocked, if the parameter 918 or the
address switch is changed followed by a power cycle.
■
Extended Diagnosis
By the extended diagnose function it is possible
to receive alarm and warning information from the
frequency converter. The setting of parameter 849
determines which frequency converter events should
trigger the extended diagnose function.
If parameter 849 is set to Disable [0], no extended
diagnose data is sent regardless wether they appear
in the frequency converter. If parameter 849 is set
to Alarms [1], extended diagnose data is sent, if one
or more alarms arrive in the Alarm parameters 538
or 953. If parameter 849 is set to Alarms/Warnings
[2], extended diagnose data is sent if one or more
alarms/warnings arrive in the Alarm parameters 538
or 953 or the warning parameter 540.
The sequence of an extended diagnose is as follows: If
an Alarm or warning appears, the frequency converter
will indicate that to the master by sending a high
prior message via the output data telegram. This will
cause the master to ask the frequency converter for
extended diagnose information, which will be replied
by the frequency converter. When the Alarm/warning
disappears, the frequency converter will again indicate
that to the master, and on the following request from the
master, return a standard DP diagnose frame (6 bytes).
The extended diagnose frame has the following content:
Byte
Content
Description
0 through 5
Standard DP Diagnose data
Standard DP Diagnose frame
6
Pdu length xx
Header of Extended diagnostic data
7
Status type = 0x81
Header of Extended diagnostic data
8
Slot = 0
Header of Extended diagnostic data
9
Status infor = 0
Header of Extended diagnostic data
10 through 13
VLT parameter 540
VLT warning word
14 through 17
VLT parameter 541
VLT status word
18 through 21
VLT parameter 538
VLT Alarm word
22 through 23
VLT parameter 953
Communication warning word
MG.90.A5.02 - VLT is a registered Danfoss trademark
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