Siemens SIMATIC ET 200SP System Manual page 78

3. Slide the individual BaseUnits to the left to the previous BaseUnit until they audibly
engage.
Assemble the BaseUnits only on the DIN rail.
Note
The BaseUnits for motor starters can be plugged together with the BaseUnits for I/O
modules.
Disassembling the BaseUnit
Hazardous Voltage
Hazardous electrical voltage can cause electric shock, burns and property damage.
Disconnect your system and devices from the power supply before starting any assembly
tasks.
To disassemble the BaseUnit, proceed as follows:
1. Disconnect the main power supply and the control current supply of the SIMATIC ET
200SP motor starter.
2. Actuate the DIN rail release on the BaseUnit of the motor starter.
3. Move the BaseUnit to the left. As soon as there is a clearance of approximately 8 mm to
the neighboring BaseUnits, you can disassemble the BaseUnit of the motor starter.
4. Swing the BaseUnit away from the DIN rail while pressing the DIN rail release.
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ
WARNING
5.6 Mounting and dismantling BaseUnits for motor starters
Installation
77