Keba Kemro KeTop T10, Руководство по проектированию устройства

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6 Connection and wiring
6.1 Power supply
WARNING!
Please observe the safety-relevant information in the chapter 2.3 "Personnel
safety instructions" on page 16 .
Specification of power supply lines in the TTxxx connection cable:
●
Cross section: AWG24 (0.24mm²)
●
Material: zinc-coated copper strand
●
Line resistance:
≤
90 Ohm/km (
≤
145 Ohm/mile)
6.2 Emergency Stop Button and grey Stop Button
The emergency stop button respectively the grey stop button used on the
KeTop features two circuits. The contacts are normally closed.
The red-yellow emergency stop button of the handheld terminal meets the re-
quirements of the EN ISO 13850. It must be designed as an emergency stop
of category 0 or category 1 (see EN 60204-1 chapter 9.2.5.4.2) on the basis
of the risk assessment for the machine. The connection of the positive-break
contacts to an appropriate monitoring system must meet the safety category
(in accordance with EN ISO 13849-1) which is defined by means of the risk
assessment (in accordance with EN ISO 14121-1) of the machine.
Optionally the KeTop is also available with a grey stop button instead of the
red-yellow emergency stop button. In principal the grey stop button has the
same functionality as the red-yellow emergency stop button. If the handheld
terminal is not plugged in, the grey color of the stop button should avoid the
usage of the non-effective (emergency) stop button in dangerous situations.
For a more information about this topic see chapter "CE Conformity, Directives
and Standards".
The grey stop button fulfils also all mechanical aspects of the EN ISO 13850
and differs from the emergency stop button only by its color.
Connection and wiring KeTop T10
© KEBA 2014
Project engineering manual V1.02 28