Replacing The Battery; Fig. 12 Access Device Components - Beckhoff CP77 Series Manual

• Wrist grounding strap, especially for sedentary activities;
• grounded and electrostatically dissipating equipment and operating materials (e.g. tools) within the
ESD protection zone.
If it is not possible to create an ESD protection zone, you can still protect the device against ESD damage.
For example, the following measures can be used:
• Use conductive mats connected to the ground potential as underlays.
• Dissipate possible charges from your own body by touching grounded metal (e.g. control cabinet door).
• Wear a wrist grounding strap.
• Only remove new electronic components from the ESD packaging (tinted plastic bag) after putting on
the wrist grounding strap.
• Do not walk around with electronic components in your hand if they are not in ESD packaging.
Access to exchangeable device components
Access is gained to the battery (1) and storage medium (2) from the back of the panel PC. The components
are located behind a cover. To gain access to the device components, loosen the four M3x8 screws and
remove the cover (see Fig. 12).
Fig. 12: Access device components
7.2.1

Replacing the battery

Incorrect battery type
Replace the battery with R/C (BBCV2), order number RC2032, nominal voltage 3 V. Using any other
battery may cause fire or explosion.
• Only replace the battery with a replacement battery from Beckhoff Service.
• When replacing the battery, make sure that the polarity is correct.
Battery damage
Incorrect handling of the motherboard battery can damage it.
• Do not recharge the battery.
• Do not throw the battery on the fire.
• Do not open the battery.
• Protect the battery against direct sunlight and moisture.
Failure of the electronics due to mechanical damage
Scratches or damaged components on PCBs can cause the electronics to fail.
• Be very careful when replacing the battery and avoid mechanical damage to the electronics.
CP77xx
1
2
NOTICE
NOTICE
NOTICE
Version: 3.4
Maintenance
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