Siemens SIMATIC IPC277E Operating Instructions Manual page 78

Device maintenance and repairs
7.2 Repair information
If you install or exchange system expansions and damage your device, the warranty
becomes void.
Electrostatic sensitive devices (ESD)
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 chapter "ESD Guideline (Page 93)"
Limitation of liability
All technical specifications and approvals of the device only apply if you use expansion
components that have a valid CE approval (CE mark). The installation instructions for
expansion components in the associated documentation must be observed.
UL approval of the device only applies when the UL-approved components are used
according to their "Conditions of Acceptability".
We are not liable for functional limitations caused by the use of third-party devices or
components.
Tools
For information on tools to open the device, see section "Opening the device". You can
make repairs on the device with the following tools:
● T20 screwdriver for protective conductor connection and enclosure
● T10 screwdriver for all of the remaining screws
Safety assessment
Carry out a safety inspection for functions relevant to safety on the entire system, including
all safety-related components.
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CAUTION
Operating Instructions, 11/2019, A5E35783335-AE
SIMATIC IPC277E