Mounting and connecting   
3.4 Switching on and testing the HMI device 
  Basic Panels 
48  Operating Instructions, 04/2012, A5E02421799-03 
3.4  Switching on and testing the HMI device 
Switching on the HMI device.      
 
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Switching on the power supply. 
The screen lights up after power is switched on. 
A progress bar is displayed during startup. 
If the HMI device fails to start, you have probably 
crossed the wires on the power supply terminal. 
Check the connected wires and change their 
connection.