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Safety symbols
9
Icon
Explanation
Direct current
The equipment is only suitable for direct current. Used for marking cor‐
responding terminals.
Protective conductor connec‐
tion
For marking the connection for an external protective conductor for pro‐
tecting against electrical shock in the event of an error or for a connect‐
ing terminal of the external protective conductor.
Ground
For marking the ground connection.
General warning symbol
The documentation must be consulted in any scenario where the sym‐
bol is affixed in order to find out the type of potential hazard and the
actions required to avoid the risk.
TCU 30.3
Manual, 09/2017, A5E40874197
85
Summary of Contents for SINUMERIK 840D sl TCU 30.3
Page 18: ...Description 2 4 Rating plate TCU 30 3 18 Manual 09 2017 A5E40874197 ...
Page 32: ...Connection 4 1 Pin assignment of the interfaces TCU 30 3 32 Manual 09 2017 A5E40874197 ...
Page 72: ...Networking 5 4 Service and diagnostics TCU 30 3 72 Manual 09 2017 A5E40874197 ...
Page 86: ...Safety symbols TCU 30 3 86 Manual 09 2017 A5E40874197 ...