Safety first - F.wood-supply.dk
Safety first - F.wood-supply.dk
Safety first - F.wood-supply.dk
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
S4000<br />
Basic device – SNZ 1022K<br />
Applications<br />
• Protection of people and machinery<br />
• Monitoring of two-hand applications<br />
• Monitoring of safety gates<br />
• According to EN 574 Type IIIA<br />
• Up to PL c / Category 1 (EN ISO 13849-1)<br />
• Up to SIL CL 1 (EN 62061)<br />
Features<br />
• Stop Category 0 according to EN 60204-1<br />
• Two-channel actuation; 1 NO contact and<br />
1 NC contact for each channel<br />
• Cross monitoring<br />
• Monitoring of synchronous activation<br />
• 1 changeover contact<br />
Function<br />
After the power <strong>supply</strong> is established at terminals A1/A2 and the feedback<br />
loop is closed (terminals Y1/Y2), the release current paths are closed when<br />
the actuators (S1+S2) are operated at the same time. The two actuators must<br />
be operated within 0.5 s to trigger a release. If just one of the two actuators is<br />
released, the device is immediately de-energized and the enabling current path<br />
is opening.<br />
The device can only be restarted once the two actuators are returned to their<br />
initial positions (e.g. the two-hand buttons have been released). The current<br />
status of the device is shown by 2 LEDs. The presence of the power <strong>supply</strong> is<br />
indicated with the SUPPLY LED, the operation of the two actuators with the K1<br />
LED, if there is synchronous operation.<br />
Circuit diagram<br />
SNO 1022K<br />
58
Change language