REER ULISSE UNC Security Light Curtain Practice

2. Key security mechanism: mandatory testing

According to the definition of Type2 security devices, the system must undergo regular testing to detect potential faults. The testing of the ULISSE UNC system is manually triggered through an external button. The testing process is as follows:

The operator presses the test button.

The control unit temporarily shuts down the transmitter.

The receiver should detect beam interruption and cut off its output signal.

The control unit checks whether the response time of the receiver meets the requirements and confirms that its output status changes normally.

If everything is normal, the test is successful, and the system allows for a restart.

This test must be performed every time the machine is powered on and regularly conducted during daily work.

Daily inspection, maintenance, and troubleshooting

1. Each shift/startup inspection

This is the first line of defense to ensure system reliability. The standard process is as follows:

Use a cylindrical opaque object with a diameter of 8mm.

Block the light beam at the center position between the transmitter and receiver.

Block the light beam near the transmitter and receiver respectively.

Observation result: In all the above occlusion operations, the green LED on the receiver (indicating "protection zone idle") must be immediately turned off. At the same time, the safety relay of the control unit should be disconnected to issue a stop command to the machine.

2. Maintenance

The ULISSE UNC system itself does not require special maintenance, but lens cleaning is crucial. Dust accumulation can weaken the light signal, which may cause system malfunction or failure.

Cleaning method: Regularly wipe the glass lenses of the transmitter and receiver with a soft, clean cloth.

Prohibited substances: It is strictly prohibited to use abrasives, corrosive products, solvents, or alcohol, as these substances can damage the surface of the lens.

3. Common troubleshooting process

If the system malfunctions (such as the machine failing to start or the safety light curtain not responding), please troubleshoot according to the following logic:

Step 1: Reset check. Try turning off and then turning on the system power again. Sometimes a brief power cycle can solve problems caused by transient interference.

Step 2: Check the connection. Carefully inspect all electrical connections, including control unit terminals, sensor M8 connectors, etc., to ensure that they are not loose, corroded, or disconnected.

Step 3: Check the optical alignment. Re align the optical alignment. Even slight deviations can lead to insufficient beam energy, especially on lenses with dust or slight contamination.

Step 4: Clean the lens. Clean the lenses of the transmitter and receiver.

Step 5: Final diagnosis. If all the above steps are ineffective, there may be an internal hardware malfunction. At this point, the complete system (including all sensors and control units) should be sent back to the original factory laboratory for professional testing. When sending for repair, be sure to attach detailed information such as problem description, product model, serial number, installation date, and cumulative operating time.

Summary and Selection Reference

The ULISSE UNC system, as a mature Type2 security light curtain, provides a reliable and economical personnel protection solution for many industrial environments. Engineers must strictly follow the full process specifications from safety distance calculation, environmental assessment, installation and wiring to daily testing when applying. Negligence in any aspect may lead to the loss of safety functions.

Quick selection and spare parts reference:

Complete kit (transmitter+receiver): Order code 1200302

Individual transmitter (ULISSE UNCE): Order code 1400302

Individual Receiver (ULISSE UNCR): Order Code 1500302

Common spare parts - M8 connector:

90 ° bend, 5-meter cable: 1200216

Straight head, 5-meter cable: 1200217

Straight head, 15 meter cable: 1200219

90 ° bend, 15 meter cable: 1200221