Rack
3.1 Rack UR6021 (6DD1682-0CH3)
SIMATIC TDC hardware
System Manual, 08/2017, A5E01114865-AL
47
Make sure that the modules you insert are properly aligned in their relevant slot.
Damaging of the ESD braid
Do not push the modules towards the left when inserting these, because you would risk
damage to the ESD braid of the modules already inserted. Observe this particularly at slot
1, as a metal spring has been installed in this slot.
If the ESD braid or a metal spring is severely damaged, the module can no longer be used
because there is a risk of a short circuit with the potentials of a neighboring module.
In SIMATIC TDC, the ground connections of all secondary voltages are grouped and bonded
to the rack enclosure in order to improve the signal to interference ratio and to ensure proper
grounding.
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