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Electrical installation
4.9 Additional connections
Note
Ensuring the function of digital inputs
An open input is interpreted as "low".
To enable the digital inputs (DI) to function, terminal M2 must be connected.
This is achieved through one of the following measures:
1. Provision of the ground reference of the digital inputs.
2. A jumper to terminal M. (Note: This removes the electrical isolation for these digital
inputs.)
Note
If the 24 V supply is briefly interrupted, then the digital outputs are deactivated during this
time.
X127: LAN (Ethernet)
Table 4- 67
Connector type: RJ45 socket
Note
The LAN (Ethernet) interface does not support Auto MDI(X). If the LAN interface of the
communication partner also cannot handle auto-MDI(X), then a crossover cable must be
used to establish the connection.
188
X127 LAN (Ethernet)
Pin
Designation
1
TXP
2
TXN
3
RXP
4
Reserved, do not use
5
Reserved, do not use
6
RXN
7
Reserved, do not use
8
Reserved, do not use
Technical specifications
Ethernet transmit data +
Ethernet transmit data -
Ethernet receive data +
Ethernet receive data -
Operating Instructions, 11/2017, A5E36652151A
Converter cabinet units
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