ABB AC500 PLC Hardware Manual page 1272

System Assembly, Construction and Connection
AC500 (Standard) > Connection and Wiring
2.
2.6.4 Connection and Wiring
For detailed information such as technical data of your mounted devices (AC500 product family)
refer to the hardware device description of the appropriate device.
1272
The demounting is carried out in a reversed order.
Press above and below, then rotate the Communication Module and remove it.
NOTICE!
Attention:
The devices should be installed by trained persons with knowledge of wiring
electronic devices. In case of bad wiring, the following problems could occur:
– On the Terminal Base, the terminals L+ and M are doubled. If the power
supply is badly connected, a short circuit could happen and lead to a
destruction of the power supply or its fuse. If no suitable fuse exists, the Ter-
minal Base itself could be destroyed.
– The Terminal Bases and all electronic modules and Terminal Units are pro-
tected against reverse polarity.
– All necessary measures should be carried out to avoid damages to modules
and wiring. Notice the wiring plans and connection examples.
NOTICE!
Attention:
All I/O channels (digital and analog) are protected against reverse polarity,
reverse supply, short circuit and continuous overvoltage up to 30 VDC.
NOTICE!
Attention:
Due to possible loss of communcation, the communication cables should be
fixed with cable duct or bracket or clamp during application.
3ADR010121, 13, en_US 2019/04/17