Safety information
2.9 Residual risks
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
23
Installation and connection
• Only work on electrical parts if you are a qualified specialist (see section Target group and
personnel qualification (Page 20)).
• Adhere to the protective measures for safe working on electrical parts (see section
Working on electrical parts (Page 22))
• Fuse the connection cables according to the current-carrying capacity of the cable used,
taking into account the applicable standards.
• Install the device in a control cabinet. The enclosures, cabinets or electrical equipment
rooms must guarantee protection against electric
shock and spread of fire.
• Ground the device in compliance with the applicable regulations.
• For the 24 V DC supply (SELV/PELV), only use power supply units that provide safe
electrical extra-low voltage in accordance with IEC 61131-2 or IEC 61010-2-201.
Maintenance
• Only work on electrical parts if you are a qualified specialist (see section Target group and
personnel qualification (Page 20)).
• Adhere to the protective measures for safe working on electrical parts (see section
Working on electrical parts (Page 22))
2.9.2 Conductive pollution
Electrocution during transmission of electrical energy via conductive contamination to the
body leads to life-threatening injuries (death).
• Install the device in a control cabinet.
• Keep the control cabinet free of conductive contamination.
2.9.3 Laser radiation
The synchronization module contains a laser system and is classified as a "CLASS 1 LASER
PRODUCT" in accordance with IEC 60825-1.
Laser beams falling on the retina cause blindness.
• Avoid direct eye contact with the laser beam.
• Do not open the synchronization module.
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