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2TLC172015M0201, rev. D www.abb.com/lowvoltage
Floating blanking (see 9) makes it possible for a number of beams to be constantly interrupted in the
protection area. With oating blanking, the object can move in the protection area without triggering the
safety function. Other beams are active with normal safety function but with reduced resolution.
Test/reset (see 5): This pushbutton is connected to +24 VDC during normal operation. It has several
functions:
A Test: A physical interruption of the protection area can be simulated by keeping the button pressed
down for at least 2.5 s.
B Reset: (see 4.6) If a connected button is pressed and released (manual reset) when the protection
area is clear again after having been disturbed, the light curtain is reset.
C Alignment: (see 3.2) If the button is pressed when voltage is connected, the barrier enters alignment
mode, i.e., when the alignment of the upper and lower beam is correct, LED 1, 2, 3 and 5 are lit to
indicate this.
D Override: (see 7) (Only and always possible when a muting indicator (LMS) is connected.)
If the button is pressed after 2 s but within 5 s after voltage has been switched on, and is then pressed
for at least 5 s, the OSSD outputs of the light curtain will be activated only if any beam is interrupted.
If
the entire protective eld is free for more than 2 s this function is stopped.
Reset of Focus II light barrier can be reached in three different ways:
A Automatic reset: (see 4.6) The light curtain is reset immediately when the protection area is clear (=
not interrupted). Default setting by delivery.
B Manual reset: (see 4.6) The light curtain is reset immediately after the protection area is clear and the
reset button is pressed and released.
C Pre-reset: (see 8) The light curtain is reset when, f irst, the pre-reset button within hazardous area
is pressed, and thereafter, if the protection area is clear, when within 8 s the reset button outside the
protection area is pressed.
Safety outputs (see 5.2) OSSD 1 and 2 are opened when the protection area is interrupted.
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