Wiring The Et 200R - Siemens SIMATIC ET 200R Manual

Secure electrical isolation
Secure electrical isolation is required for all connected current circuits.
Note
All voltages and signals of the ET 200R are not galvanical isolated. Any previous
galvanic isolation (e.g., of the voltages) is cancelled.
Note
With the ET 200R the reference potential of the voltages is connected directly to
the reference potential of the sensors.
A short-circuit in this connection may damage the module.
Protection against the destruction of components
To prevent components of the ET 200R from being destroyed, the feeder lines for
the electronics/encoder voltage and for the load voltage must be protected exter-
nally with a fuse for a max. of 9 A.
4.2

Wiring the ET 200R

Note
Before beginning installation work, turn off the main switch of the system.
How to wire the ET 200R
The ET 200R distributed I/O device is wired in three steps.
1. Connect the terminal field (X03) on the back - only when the
welding module is to be installed.
2. Connect the bus plug connectors (X01, X02).
3. Connect the actuator/sensor plug connectors.
Types of cable
3-, 4- or 5-core,
flexible copper cable
Hybrid cable
Distributed I/O Device ET 200R
(4)J31069-D0427-U001-A2-7618
Connection of the actuators and sensors to the digital inputs/
outputs
Connection of the bus plug connectors
Wiring
See chapter 4.2.1.
See chapter 4.2.2.
See chapter 4.2.3.
4–3