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Electrical installation
4.8 Signal connections
Inverter cabinet units
84
Operating Instructions, 12/2014, A5E32923362A
X126: PROFIBUS connection
The PROFIBUS is connected by means of a 9-pin SUB D socket (X126). The connections
are electrically isolated.
Table 4- 19 PROFIBUS interface X126
Pin
Signal name
Significance
Range
1
-
Not assigned
2
M24_SERV
Power supply for teleservice, ground
0 V
3
RxD/TxD–P
Receive/transmit data P (B)
RS485
4
CNTR–P
Control signal
TTL
5
DGND
PROFIBUS data reference potential
6
VP
Supply voltage plus
5 V ± 10%
7
P24_SERV
Power supply for teleservice, + (24 V)
24 V (20.4 ... 28.8 V)
8
RxD/TxD–N
Receive/transmit data N (A)
RS485
9
-
Not assigned
Note
Remote diagnostics
A teleservice adapter can be connected to the PROFIBUS interface (X126) for remote
diagnosis purposes.
The power supply for the teleservice terminals 2 and 7 withstands a max. load and continued
short-circuit current of 150 mA.
NOTICE
Damage to the Control Unit or other PROFIBUS nodes due to high leakage currents
Significant leakage currents can flow along the PROFIBUS cable if a suitable equipotential
bonding conductor is not used and destroy the Control Unit or other PROFIBUS nodes.
•
An equipotential bonding conductor with a cross-section of at least 25 mm² must be
used between components in a system that are located at a distance from each other.
NOTICE
Damage to the Control Unit or other CAN bus nodes due to the connection of a CAN cable
If a CAN cable is connected to the X126 interface, this can destroy the Control Unit or other
CAN bus nodes.
•
Do not connect any CAN cables to the X126 interface.
Содержание SINAMICS G120P
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Страница 8: ...Preface Inverter cabinet units 8 Operating Instructions 12 2014 A5E32923362A ...
Страница 16: ...Table of contents Inverter cabinet units 16 Operating Instructions 12 2014 A5E32923362A ...
Страница 255: ...Operation 6 8 Communication via RS485 Inverter cabinet units Operating Instructions 12 2014 A5E32923362A 255 ...
Страница 432: ...Application examples Inverter cabinet units 432 Operating Instructions 12 2014 A5E32923362A ...
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