Siemens SINUMERIK 840 sl, Руководство пользователя

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Note
When connecting an external 24 VDC power supply to interfaces X51, X52 and X55, this must
satisfy the requirements of a protective extra low voltage (PELV) according to UL 61010. A
backup fuse must also be used which safely trips within 120 seconds at an ambient
temperature of 0° C for a current of 6.5 A.
Alternatively, a circuit must be used that limits the current to 5 A within 60 seconds during
normal operation and in the event of an individual error.
The contact gap of the fuse or the individual error-proof circuit must be ensured with 3.0 mm
according to UL 61010 for a primary power supply from OVC III circuits up to 600 VAC (line-
to-neutral voltage).
When using an external power supply, make sure that the fuse used has a tripping rating that
corresponds to the maximum possible short-term short-circuit current of the power supply unit
used.
6.1.5 Universal outputs X53, X54
Universal output X53
Connector designation: X53
Connector type:
Male connector, 4-pin
Pin Signal name Type Meaning
1 KT_OUT1 O 24 V output 1 (e.g. lamp for customer key 1)
2 KT_OUT2 O 24 V output 2 (e.g. lamp for customer key 2)
3 KT_OUT3 O 24 V output 3 (e.g. lamp for customer key 3)
4 M V Ground
Universal output X54
Connector designation: X54
Connector type:
Male connector, 4-pin
Pin Signal name Type Meaning
1 KT_OUT4 O 24 V output 4 (e.g. lamp for customer key 4)
2 KT_OUT5 O 24 V output 5 (e.g. lamp for customer key 5)
3 KT_OUT6 O 24 V output 6 (e.g. lamp for customer key 6)
4 M V Ground
Connecting
6.1 Pin assignment of the interfaces
Machine control panel: MCP 398C
Manual, 07/2018, A5E43199783B AB
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