Leuze electronic MLC 520 EX Series User Manual

Functions
Leuze electronic MLC 530 24
Teaching of floating blanking areas
 Proceed as described in “Teaching of fixed blanking areas”, (see chapter 4.7.1 „Fixed blanking“).
 After pressing the teach key switch, move all objects to be blanked within their non-overlapping protec-
tive field areas.
The receiver teaches the object sizes and the respective movement area.
During teaching, the object size detected can vary by no more than one beam. Otherwise teaching is
ended with the U71 user message (see chapter 11.3 „Error messages 7-segment display“).
4.7.3 Controlling blanking
Through the antivalent wiring of two control inputs, blanking areas can be activated or deactivated during
operation in operating mode 1 (see chapter 7.3) and operating mode 3 (see chapter 7.5).
 Depending on the operating mode, apply control signals (+24 V and 0 V) simultaneously on both control
inputs.
 Invert the voltage of the control signal on both inputs within 0.5 s (+24 V becomes 0 V and 0 V becomes
+24 V).
LED3 illuminates blue.
A valid switch sequence is available. The blanking areas are being monitored.
4.7.4 Reduced resolution
With the “Reduced resolution” function, objects up to a defined maximum size can be brought into the
protective field without switching off the protective device and, if necessary, move freely without overlap-
ping (see figure 4.4).
The “Floating blanking” function can be combined with the “Fixed blanking” function (see
chapter 4.7.1). It is always active together with the “Reduced resolution” function (see
chapter 4.7.4).
After teaching a free protective field (“Teaching finished”), thus determining a protective field
without areas with fixed or floating blanking), the blue LED switches off.
Control signals can be delivered, e.g., from a 2-level key switch that switches the signal inputs
against +24 V and 0 V or from a PLC with two push-pull switching outputs that deliver +24 V and
0 V.
WARNING
Reduced resolution may result in serious injury!
 Take into consideration the reduced resolution when calculating the safety distance (see
chapter 6.1.1).

Leuze electronic MLC 520 EX Series Specifications

General

Brand	Leuze electronic
Model	MLC 520 EX Series
Category	Lighting Equipment
Language	English