Mechanical Safety; Thermal Safety - WAGO 750 XTR Series System Manual

750 XTR Series
• Using large shield clamps, on both sides if possible, establish a low-resistance connec-
tion between the shield and functional ground.
• Without overcurrent protection, the electronics can be damaged. Provide appropriate
protection.
• Disable the voltage and field supply before inserting/replacing fuses.
• Only use fuses that meet WAGO specifications.
• For UL-approved systems, use fuses with UL approval only .
Cables
• Use shielded cables with copper braiding or tinned copper braiding. This reduces elec-
tromagnetic interference and increases signal quality. Measurement errors, data trans-
mission errors and interference due to excessive voltage can be prevented.
• Route the connecting cables between the outputs of the interference-free modules and
the actuators with protection per EN 60204-1 or EN ISO 13849-2 (e.g., as separately
sheathed cables or in separate cable ducts).
• Maintain spacing between control, signal and data lines and the power supply lines.
• Observe permissible temperature range of connecting cables.
• You must only connect one conductor to each clamping unit.
• Avoid reverse polarity of data and power supply lines, since this may damage the de-
vices involved.
• Use only direct current (DC) for insulation testing. To avoid destroying the components,
discharge them completely before applying the test voltage again.
Protection
• When working on the system (e.g., during maintenance), protect the facility part in
question from accidental or unauthorized restart.
Shielding/Network
• Ensure integrated shielding in order to meet the technical specifications regarding
measurement accuracy.
• Always use shielded signal lines for analog signals and on products with shield termi-
nal blocks.
• Use shield clamps for shielding connection cables.

2.3 Mechanical Safety

• As the installer of the system, you are responsible for ensuring the necessary touch-
proof protection. Follow the installation guidelines for the specific application.
• Do not touch the power jumper contacts.
• Before startup, please check the product for any damage that may have occurred dur-
ing shipping. Do not put the product into operation in the event of mechanical damage.
• Do not open the product housing.
• Avoid conductive contamination.

2.4 Thermal Safety

• The surface of the housing heats up during operation. Under special conditions (e.g., in
the event of a fault or increased surrounding air temperature), touching the product
may cause burns. Allow the product to cool down before touching it.
System manual | Version: 2.0.0
Safety
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