SIMATIC IPC677E 
Operating Instructions, 04/2019, A5E45117996-AA 
89 
  Maintaining and servicing your device 
7.1  Repair information 
 
Risk due to unauthorized opening and improper repairs or expansions 
Improper procedure when carrying out expansions may result in substantial damage to 
equipment or endanger the user.  
If you install or exchange system expansions and damage your device, the warranty 
becomes void. 
•  The device may only be repaired by qualified personnel. 
Safety when working in and on electrical systems 
Work in or on electrical systems may only be carried out by authorized persons. The 
following safety regulations apply in Germany for the prevention of electric shock and 
electrocution: 
1.  Switch off the system 
2.  Secure the system to prevent it switching back on 
3.  Check the system to ensure it is de-energized 
4.  Ground and short the system 
5.  Cover or shield adjacent live parts 
These safety rules are based on the DIN VDE 0105 standard. 
 
Note 
These safety steps must always be taken in the above order before any work on electrical 
systems. Once work on an electrical system is finished, cancel the safety steps 
starting with 
the last and finishing with the first.
 
 
Note 
In accordance with the applicable safety regulations, clearly indicate on an electrical system 
that work on it is underway.
 
Observe the safety regulations applicable in the country of operation.
 
See also 
Spare parts and repairs (http://support.automation.siemens.com/WW/view/en/16611927) 
Spare parts service (https://support.industry.siemens.com/cs/ww/en/sc/2110)