3
Gateway InterBus-S
MG.10.G1.51 – VLT is a registered Danfoss trademark
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Properties of the PROFIBUS-DP
A maximum of 14 VLTs can be linked up -
using the PPO Type1 (12Byte) or the PPO
Type3 (4Byte). The selection of PPO Type
goes for all VLTs; mixed operation is not
permissible and will lead to an error
report.
The InterBus-S in-/output data is
projected on the PROFIBUS-DP without
any interpretation being offered. With one
exception, bit 10 of the control word
(CW), is inverted. This ensures that when
the PLC moves to Stop and resets all
outputs, the connected VLTs will stop,
too; also, when the InterBus-S
communication starts, it is ensured that
the VLT
®
5000 remain stopped.
Pr
operties of PROFIBUS-DP-Page
■
The PPO Type1 allows parameterization of
the VLTs, retrieval of all values and para-
meters - including fault and diagnostic
data, as well as control of the VLT
®
with
reporting back on its actual state.
The PPO Type3, on the other hand, allows
only control and reporting back on the
state of the VLT
®
.
With respect to the functioning and hand-
ling of the parameter interface in PPO
Type1, please refer to the manual on
PROFIBUS Option Cards for VLT
®
5000.
The baudrate on the PROFIBUS-DP is
1.5Mbaud, which means that the
maximum bus cable length is 100 m.
Further information is available from the
PROFIBUS manual for VLT
®
5000.
!!! IMPORTANT !!!
Before inserting the PROFIBUS Option Card, the VLT
®
should be turned on and
parameter 620 should be set to "Initialize". Subsequently, remove the power and
insert the PROFIBUS Option Card. When the unit is turned back on, new
initialization is effected automatically. Be aware that all parameters will be set to
Factory setting!
If this sequence is not possible, or if the PROFIBUS Option Card has already
been inserted, the keys DISPLAY/ MENU + OK must be pressed
simultaneously before turning on the VLT
®
; subsequently, turn on the power and
keep the three keys pressed until the message "Manual Initialize" appears in the
bottom line of the display window (see page 136 in MG.50.AX.02).
