Siemens SIMATIC HMI KP400 Comfort - 3.3 Connecting the Device

Mounting and connecting the HMI device
3.3 Connecting the device
Comfort Panels
46 Operating Instructions, 07/2017, A5E36770603-AB
3.3
Connecting the device
3.3.1
Notes on connection
Requirement
● The HMI device must be mounted according to the specifications of these operating
instructions.
● Always use shielded standard cables for the data cable.
Additional information is available in the catalog and online order system at:
Industry Mall (https://mall.industry.siemens.com
).
Connection sequence
Connect the HMI device in the following sequence:
1. Equipotential bonding
2. Power supply
Perform a power-up test to ensure the power supply is connected with the correct
polarity.
3. Controller
4. Configuration PC if needed
5. I/Os if needed
Note
Damage to the HMI device
If you do not keep to the c
onnection sequence you could damage the HMI device.
Make sure you connect the HMI device in the sequence given above.
Disconnect the HMI device by completing the above steps in reverse order.
Connecting the cables
When connecting the cables, make sure that you do not bend the contact pins. Secure the
cable connectors by fastening the connector to the socket with screws. Provide adequate
strain relief for the connecting cables.