Grounding Simatic Cfu With Aluminum Housing; Care And Maintenance; Information On Care And Maintenance - Siemens SIMATIC CFU Commissioning Manual

See also
Article numbers (accessories / spare parts) (Page 181)
11.3.2.9

Grounding SIMATIC CFU with aluminum housing

Required accessories
● Grounding cable, at least 4.0 mm
● Screwdriver with 8 mm blade width
Grounding the housing
1. Strip the insulation of the grounding cable to 8 mm.
2. Fasten the grounding cable to the ground terminal (left side of the housing).
11.3.3

Care and maintenance

11.3.3.1

Information on care and maintenance

Explosion hazard
Observe the safety information in section "Use in hazardous areas (Page 29)".
The spring-loaded terminals are maintenance-free. The clamping force of the spring terminals
of the push-in connectors remains constant over time.
Maintenance of the CFU is limited mainly to visual inspections. These inspections of the CFU
may take place during operation.
● Before installing the cover, check the seal for damage and proper fit.
● Tighten screws and cable glands to the correct tightening torque
● The pressure compensation element is maintenance-free. If a pressure compensation
element is damaged, it must be replaced immediately.
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD
DANGER
CFU
Connect the grounding cable to the equipotential bonding terminal in accordance with
EN 60079-14.
DANGER
Compact Field Unit in the housing for use in a hazardous area
11.3 Configuration with SIMATIC CFU with aluminum housing
(copper)
2
143