Starting up the device
Leuze electronic
MLC 520S
35
8
Starting up the device
WARNING
Improper use of the safety sensor may result in serious injury!
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Make certain that the entire device and the integration of the optoelectronic protective de-
vice were inspected by qualified and instructed persons (see chapter 2.2 "Necessary com-
petencies").
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Make certain that a dangerous process can only be started while the safety sensor is
switched on.
Prerequisites:
• Safety sensor mounted (see chapter 6 "Mounting") and connected (see chapter 7 "Electrical connec-
• Operating personnel were instructed in proper use
• Dangerous process is switched off, outputs of the safety sensor are disconnected, and the system is
protected against being switched back on
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After start-up, check the function of the safety sensor (see chapter 9.1 "Before commissioning and fol-
lowing modifications").
8.1
Switching on
Requirements for the supply voltage (power supply unit):
• Reliable mains separation is ensured.
• Current reserve of at least 2 A is available.
Check operational readiness of sensor
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Check whether the LED indicators on the transmitter and receiver indicate the normal operating mode
(see chapter 3.4.1 "Operation indicators on the MLC 520S transmitter/receiver").
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The safety sensor is ready for use.
8.2
Aligning the sensor
NOTICE
Faulty or incorrect alignment may result in an operating fault!
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The alignment performed during start-up should only be performed by qualified persons (see
chapter 2.2 "Necessary competencies").
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Observe the data sheets and mounting instructions of the individual components.
NOTICE
In alignment mode, the OSSDs are not active.
The safety light curtain features a system that informs the user of the quality of the alignment. In alignment
mode, the LED indicator provides information on the quality and level of the alignment.
Perfect alignment is achieved when the optical axes of the first and last beam of the transmitter are aligned
with the optical axes of the corresponding beams of the receiver.
For the synchronization of transmitter and receiver, the beam closest to the cable tail is used: SYNC.
