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Electrical installation
Operation manual
4
4.3 Connection of the bus cables to the inverter
To connect PROFIBUS DP, the DP5000 option module is equipped with a 9-pin,
sub D socket plug connector with the pin allocation specified in the PROFIBUS
standard (see below).
To connect the bus cable(s), we recommend the use of suitable bus connection
plugs which are offered by various manufacturers especially for PROFIBUS DP.
The incoming and the outgoing bus cable can be inserted and screwed down in
these plug connectors. There is no outgoing bus cable for the last station. In this
case the sliding switch on the plug is set to "on" to switch on the bus terminating
resistors.
Information
To ensure that bus termination functions correctly, the power supply
may not be allowed to fail on the stations with circuited terminating
resistors! To bypass the risk of a complete bus failure when the last
station malfunctions, active bus terminating components can be used.
The inverters in the device series MDS 5000 and SDS 5000 with a
separate 24-V control part power supply represent such components.
In the device series FDS 5000, inverters with the identifier "/L" have a
separate 24-V control part power supply.
PIN a)
Designation Function
1 nc Not connected
2 nc Not connected
3 B RxD/TxD-P (send/receive data - plus)
4 RTS Direction control for repeater (plus)
5 GND Ground to +5 V
6 +5V Power for the terminating resistors
7 nc Not connected
8 A RxD/TxD-N (send/receive data - minus)
9 nc Not connected
a) View of sub D
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ID 441687.03
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