Grounding - Siemens SINUMERIK 840Di sl Commissioning Manual

Max. (absolute, transient)
Max. duration
min. recovery time
Max. events per h
Voltage failure for min. power supply voltage
Max. duration
min. recovery time
Max. events per h
Power consumption
Maximum
On the module side the power supplies must be protected against:
● Polarity reversal
● Short-circuit (elec. current limitation of the outputs)
● Overload (fuse protection).
2.12.4

Grounding

The module must be installed according to EN 60204.
If a large-area, permanent metallic connection with the central ground point through the rear
panel is not possible, the mounting plate must be connected to the grounding by means of a
line (cross section > 10 mm
CAUTION
A protective conductor must be connected.
Manual
Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
35 V
500 ms
50 s
10
50 ms
1)
1 s
10
Approx. 40 W
).
2
Hardware Descriptions
2.12 PP72/48 I/O module
101