Baldor FlexDriveII, Reference Manual

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3-2 Input / Output MN1911
3.2.1 Profibus - X14
Location Connector X14
Mating connector (not supplied):
9-pin male D-type PROFIBUS DP node
terminating connector
Name Profibus
Description Standard female 9-pin D-type connector.
Connections to X14 should always be made using specially
constructed PROFIBUS DP node terminating connectors. These
typically contain a resistor chain and switch to ensure correct
termination is present while the device is attached or removed from
the network. Line inductors are often included to maintain correct
impedance at high data rates. Standard D-type connectors should
not be used. Only cables specified as suitable for PROFIBUS DP should be used. These consist
of shielded red/green conductors and have a characteristic impedance of 150
Ω .
Baldor control
X14
PROFIBUS DP cable
Node terminating
connector
+5V (6)
RX/TX Data B (3)
RX/TX Data A (8)
0V (5)
from
previous
node
PROFIBUS DP cable
to
next
node
On
Off
On
Off
Figure 2 - Connection details
The TX signal present on pin 4 (not shown) is used when the node is connected to a
repeater. The signal indicates when the node is sending data, allowing the repeater to switch
mode accordingly. For most applications repeaters are not used, so it does not need to be
connected.
1
5
6
9