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Starting up the device
Leuze electronic GmbH + Co. KG
MSI-TR1B / MSI-TR2B
24
8
Starting up the device
Prerequisites:
• Protective sensors and safety relay were mounted and connected in accordance with the respective
instructions.
• Operating personnel were instructed on proper use.
• Dangerous process was switched off and the system has been protected against being restarted
again.
During start-up, test the function of the safety relay (see chapter 9 "Testing").
8.1
Switching on
Requirements for the supply voltage (power supply unit):
• Safe mains separation is ensured (acc. to EN/IEC 60742).
• Changes and interruptions of the supply voltage are handled (acc. to EN/IEC 61496-1).
• The start/restart interlock function is connected and activated.
Switch on the current supply.
Check whether the "ON/OFF" LED on the safety relay lights up.
The safety relay is ready for use.
8.2
Unlocking start/restart interlock (RES)
The start/restart interlock can be unlocked with an external reset button (see figure 3.3). In this way, the
responsible person can restore normal operation of the system following process interruptions (triggering
of the protective function, failure of the voltage supply) .
The red and yellow LEDs illuminate as long as the restart is disabled.
Make certain that the active protective field is clear.
If the active protective field is not clear, select a different procedure.
Make certain that there are no people in the danger zone.
Press the reset button and release it again (after 0.06 … 5 s).
The safety relay switches back to the "ON" state.
WARNING
Improper use of the safety relay may result in serious injury!
Make certain that the entire device and the integration of the optoelectronic protective device
was inspected by competent and instructed persons.
Make certain that a dangerous process can only be started while the safety sensor is switched
on.
WARNING
Premature unlocking of the start/restart interlock may result in serious injury!
If the start/restart interlock is unlocked, the system can start up automatically.
Before unlocking the start/restart interlock, make certain that no people are in the danger zone.