Maintaining and servicing your device 
  7.3 Cleaning the Device Front 
SIMATIC IPC677E 
Operating Instructions, 04/2019, A5E45117996-AA 
91 
7.3  Cleaning the Device Front 
The device is designed for low-maintenance operation. You should still clean the device front 
regularly, however. 
 
Unwanted reactions when cleaning the device 
You risk unintentional actuation of control elements if you clean the device while it is 
switched on. 
You may possibly trigger unwanted actions of the device or controller that are liable to 
cause personal injury or damage to the machinery. 
•  Always switch off the device before you clean it. 
Cleaning Agents 
 
Damage to the HMI device caused by impermissible cleaning agents 
Impermissible and unsuitable cleaning agents may cause damage to the HMI device. 
Use dish soap or foaming screen cleaner only as cleaning agents.  
•  See the notes under "Notes on ambient and environmental conditions (Page 28)". 
Cleaning the Device Front 
1.  Switch off the device. 
2.  Dampen the cleaning cloth. 
3.  Spray the cleaning agent on the cloth and not directly on the device. 
4.  Clean the device with the cleaning cloth.