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Ref. DCD01/3078 - TD412_en_C

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ECommunication

1. Dedicated Inputs/Outputs

 Connection to DB37F connector

This connector is used to communicate with the machine. It

groups dedicated inputs and outputs that are used in the

marking cycle.

The pins are numbered from 1 to 37.

Connections and cabling: separate the power supply cables from the control cables in

cable ducts and in the cabinet (for control cables, a section of 0.34 mm

is recommended).

Equipment filtering: the relays connected to the marking machine should include a device

for suppressing interference on the operating coil (freewheeling diode for DC relays or RC

circuit for AC relays).

Connection of shielding: the communication cables (All Or Nothing I/O or RS232

computer cables) must be shielded with both ends of the shielding connected to the

equipment earth via the shortest possible link.

Grounding: connect together all the conductive metal grounds (no paint or treatment such

as anodization) of the equipment (frame, cabinet, marking machine) to ensure effective

connection. Where possible, there should be multiple connection points to improve the

connection quality.

Emergency stop - B

Emergency stop - A

Interlock - B

Interlock - A

Stop marking

Start marking

Grounding - 0 V

Shutter command

Key contact

Information: "Laser" alarm

Information: Ready to marking

Information: Marking in progress

Information: Shutter’s condition

Information: Key state

Information: Emergency stop

Safety circuit reset