2
Commissioning the
Profibus Interface
2.1
Connections and user controls
The connections and user controls for the Profibus interface are shown schematically
in Figure 2-1. The LEDs H1, H2, H3 act as status indicators. The rotary coding switches
S1 and S2 can be used to set the Profibus address for the drive. The Profibus cable is
connected to the plug X14.
Front plate
No.
H1
LED for status indication (yellow)
H2
LED for status indication (red)
H3
LED for status indication (green)
Rotary coding switch for setting the Profibus address for the
S1
drive = 0x(S2)(S1)
Rotary coding switch for setting the Profibus address for the
S2
drive = 0x(S2)(S1)
X14
Profibus cable connection
Table 2.1
Profibus options card
moog
[
Chapter 2
]
2.2
The Profibus is connected using a nine-pin sub-D plug. The pin assignment is shown in
Fig. 2-2 and described in Table 2.1.
X14
Figure 2.1
Comments
The pin assignments shown with dark backgrounds in the table are not necessary from
the user's point of view. The control signals used for the repeaters are optional, and the
power supply for the terminating resistors is provided by the device.
Plug configuration for the Profibus cable
RxD
TxD-P
DGND
1
2
3
4
5
6
7
8
9
RxD
VP
TxD-N
5 Volt
Pin assignment of sub-D-plug connector
PIN
RS-485
Signal
1
SHIELD
2
RP
3
B/B' (red)
RxD / TxD-P
4
CNTR-P
5
C/C'
DGND
6
VP
7
RP
8
A/A' (green)
RxD / TxD-N
9
CNTR-N
Table 2.2
Description of pin assignment
MSD Servo Drive User Manual Profibus
Description
Earthed shield
Reserved for power supply via the bus
Send and receive data (+)
Control signal for repeater (+)
Data reference potential and power supply to
terminating resistor (-)
Power supply for terminating resistor (+)
Reserved for power supply via the bus
Send and receive data (-)
Control signal for repeater (-)
9
Need help?
Do you have a question about the MSD and is the answer not in the manual?