How should I check safety interlocks when sourcing a packaging machine?
• Verify that opening guard door immediately cuts servo power; check relay contacts with multimeter;
• Confirm interlock circuit meets CE EN ISO 13849-1, safety relay PLd or higher with certificate;
• Manually trigger E-stop, ensure PLC/HMI shows alarm and heat-seal jaw and motion stop;
• Inspect interlock switch brand, prefer Schmersal/Pilz, avoid ordinary limit switches as substitute;
• During FAT, simulate door open with test rod, response time must be under 0.5s, issue report.
• Confirm interlock circuit meets CE EN ISO 13849-1, safety relay PLd or higher with certificate;
• Manually trigger E-stop, ensure PLC/HMI shows alarm and heat-seal jaw and motion stop;
• Inspect interlock switch brand, prefer Schmersal/Pilz, avoid ordinary limit switches as substitute;
• During FAT, simulate door open with test rod, response time must be under 0.5s, issue report.