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04/04 Connection

SINAMICS G130 - Operator Panel AOP30

Operating Manual

4-11

X540: Serial Interface (RS232)

Table 4-2 Serial interface (RS232) X540

Pin Designation Technical specifications

2 RxD Receive data

3 TxD Transmit data

5 Ground Ground reference

Plug type: 9-pin SUB-D female

NOTE

The maximum cable length is 10 m.

To ensure noise-free communication, you are advised to use a shielded cable and

connect the cable shield to both connector housings.

CAUTION

On the operator panel electronics, a connected cable shield is connected to the

signal and P24 ground. If the power supply is connected with incorrect polarity, the

P24 supply via the shield and signal ground will short-circuit.

Connection

The AOP30 is connected as follows:

1. Connect the power supply cable to the interface for the electronics power

supply (X524).

2. Connect the standard cable to the serial RS232 interface (X540).

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Siemens EF 7850 Series Especificaciones Pagina 13