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Supplementary Electrical Conditions; Power Supply - Siemens SINUMERIK 840 sl Manual

Machine control panel: mcp 398c
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Emergency stop button
Rated voltage
Current rating, max.
Current rating, min.
Switching capacity
Conditional rated short-circuit current
B
10d
Note
The quantitative assessment of the emergency stop safety function must be based on the
B
10d
the respective application (frequency of the actuation, service life, diagnostics by the evaluation
unit, etc.). The B
button are taken into account.
9.1

Supplementary electrical conditions

9.1.1

Power supply

Requirements for DC power supplies
Electric shock due to connection of an unsuitable power supply
When equipment is connected to an unsuitable power supply and/or insufficiently grounded
or rear cover (Page 35), exposed components may carry a hazardous voltage that might
result in serious injury or death.
● Only use power supplies that provide SELV (Safety Extra Low Voltage) or PELV
Machine control panel: MCP 398C
Manual, 07/2018, A5E43199783B AB
values corresponding to the used standards (e.g. ISO 13849-1) under consideration of
values only apply when the technical properties of the emergency stop
10d
WARNING
(Protective Extra Low Voltage) output voltages acc. to UL 61010 for all connections and
terminals of the electronics modules.
9.1 Supplementary electrical conditions
24 VDC
3 A
1 mA
DC 13 according to EN 60947-5-1
10 A gL/gG according to EN 60947-5-1
500000
Technical data
57

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