F39-TGR-CVL-B-10-R datasheet(23/98 Pages) OMRON

23 / 98 page

SECTION 4

System Operation

The MS4800 system is a microprocessor-controlled, infrared, transmitted-

beam safety light curtain. The system consists of a receiver assembly and a

transmitter assembly. The receiver and transmitter assemblies are not physi-

cally interconnected.

It complies with a Type 4 according to EN/IEC 61496 and category 4 accord-

ing to EN954-1.

An MS4800 system is used where personnel protection is required. Typical

applications include packaging machines, back side protection of presses and

textile machinery.

4-1

Operating States

The operating condition of an MS4800 system is described in terms of states.

The following operating states exist for an MS 4800 system.

4-1-1

Machine Run

The two receiver safety outputs are in the ON state, the green MACHINE RUN

indicator is lit, and the auxiliary output is in a state consistent with its configu-

ration. The protected machine is allowed to operate. Pressing and releasing

the start button has no effect.

4-1-2

Machine Stop

The two receiver safety outputs are in the OFF state the red MACHINE STOP

indicator is lit, and the auxiliary output is in a state consistent with its configu-

ration. The protected machine is not allowed to operate.

4-1-3

Interlock

The two receiver safety outputs are in the OFF state, the red MACHINE STOP

indicator and yellow INTERLOCK indicator are lit. The auxiliary output is in a

state consistent with its configuration. The INTERLOCK state does not allow

the protected machine to operate until the detection zone is clear of obstruc-

tions and the start button is pressed and released.

4-1-4

Alarm

The two receiver safety outputs are in the OFF state, the red MACHINE STOP

indicator is lit, the yellow INTERLOCK indicator is flashing and the auxiliary

output is in the OFF state. The alarm state does not allow the protected

machine to operate. The primary difference between ALARM and INTER-

LOCK is that the MS4800 system will remain in the alarm state until the alarm

is corrected, and then applying a power cycling or an external start button

press and release.

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