Danfoss VLT 2800 Operating Instructions

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
Theaddressviathehardwareswitchisvalid,if
the switc h 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
willbeeffectiveatnextpowerup.
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 Sta tion
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, whi ch makes it impos sib le to
change the address by this command. The address
setting will be unlocked, if the p a rameter 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 p aram eter 849 is se t 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 w arning parameter 540.
The sequence of an extended diagnose is as follows: If
an Alarm or warning appears, the frequency co nverter
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 w ill 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 diagn ostic d ata
8 Slot = 0 Header of Extended diagnostic data
9 Status in for = 0 Header of Extend ed dia gnostic data
10 through 13 VLT parameter 540 VLT w arning word
14 through 17 V LT parameter 541 VLT s tatus wo rd
18 through 21 VLT parameter 53 8 VLT Alarm word
22 through 23 VLT p ar ameter 953 Communication warning word
MG.90.A5.02 - VLT i s a registered Danfoss trademark
41

Danfoss VLT 2800 Specifications

General

Brand	Danfoss
Model	VLT 2800
Category	DC Drives
Language	English