Siemens SIMATIC IPC477D Operating Instructions Manual page 110

Maintaining and servicing your device
7.2 Repair information
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.
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.
Electrostatic-sensitive components
The device contains electronic components which are destroyed by electrostatic charges.
This can result in malfunctions and damage to the machine or plant.
Make sure you take precautionary measures even when you open the device, for example,
when opening device doors, device covers or the housing cover. For more information,
refer to the section "ESD Guideline (Page 133)"
Risk of explosion and release of harmful substances
Improper handling of lithium batteries can result in an explosion of the batteries. Explosion
of the batteries and the released pollutants can cause severe physical injury.
Observe all safety and handling instructions for lithium batteries. Do not expose lithium
batteries to flames and do not solder the battery cell. Do not recharge, open, or short
lithium batteries. Do not reverse lithium battery polarity or heat the batteries to over 100°C.
Keep lithium batteries out of direct sunlight and protect them from moisture and
condensation.
110
CAUTION
WARNING
SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 07/2015, A5E31347228-AD