Siemens SIMATIC HMI Mobile Panel 277 RO - 4.5 Connecting the Mobile Panel 277 RO

Mounting and connecting
4.5 Connecting the Mobile Panel 277 RO
Mobile Panel 277 RO
Operating Instructions, 10/2015, A5E36824256-AA
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4.5
Connecting the Mobile Panel 277 RO
4.5.1
Connecting the HMI device
Connecting the cables
When connecting the cables, ensure that the contact pins are not bent. Secure the
connectors with screws.
The pin assignment of the ports is described in the technical specifications.
4.5.2
Opening and closing the terminal compartment
Before you begin
NOTICE
Malfunctions
If the HMI device is lying on its front, there is a risk that the STOP button can be activated,
leading to a malfunction.
When you open the terminal compartment, you must therefore disconnect the connection
cable for the Mobile Panel 277 RO from the connection box.
Mobile panel with rechargeable battery
Never open the terminal compartment if the HMI device is live. Wait until the HMI device
switches itself off.
An HMI device with inserted battery initially switches to standby mode. After around 10
minutes, when the rechargeable battery has discharged, the HMI device will switch off.
ESD
When working in the open housing, ensure that current-carrying conductors do not come
into contact with electrical circuits.
Note the ESD instructions.
NOTICE
Damage to the HMI device
Pay attention to cleanliness. Foreign bodies or liquids must not come into contact with the
printed circuit board or penetrate the inside of the HMI device.
Place the HMI device with the front side facing down on a flat, clean surface to protect
against damage.