Harmony eXLhoist, Руководство пользователя

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Safety
EIO0000001505 12/2014
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Safeguarding
Overview
For general description, refer to Safeguarding function ( see page 107 ) .
Safeguarding can be assigned to a motion direction thanks to the eXLhoist Configuration Software.
The undesired event of Safeguarding function is the no disabling of motion buttons.
Safeguarding limit switches contacts must be NC contacts.
The safe state of the Safeguarding function is to open safety relays.
Safeguarding input signal:
In order to justify of the safety category 2, an automatic diagnostic is realized on the Safeguarding
inputs thanks to the IN_COM output port. An external power supply of Safeguarding inputs cannot
be used.
Safeguarding is a passive stop function (function activated when an input signal is detected).
Function Installation IEC 60204-32 IEC 61508 IEC 62061 ISO 13849
STOP
category SIL SIL CL Safety category PL
Safeguarding NC Category 2 on
the motion
direction SIL1 SIL1 CL Category 2 for
electronic parts
Category 1 for
electromechanic
al parts PL c
Input signals limit switch Units Value
Logic 0 (Ulow) V < 1
Logic 1 (Uhigh) V > 2
Impedance k Ω 1.5
Debounce time ms 1
Response time of safety function ms < 300