KEYENCE SL-V Series - Manual (Page 161)

A-2 Checklist
A-9
App
end
ix
A
SL-V-M-NOA-E

The two of OSSD outputs provided in the SL-V are both used as a safety-related machine control sys-
tem.

The polarity is not reversed with the connection to the power supply.

In case of using PNP output type cable, the OSSD is not short-circuited to +24V, and the load is
between the OSSD and 0V.

In case of using NPN output type cable, the OSSD is not short-circuited to 0V, and the load is between
the OSSD and +24V.

When two or more SL-V are connected in series, they are connected using the dedicated series con-
nection cable, which is not cut or extended.

Alert output, AUX output, Clear/Blocked Output, state information output, and Interlock-reset-ready
output are not used as safety output for safety systems.

The cable sheaths are not damaged. The protection against the disconnection or short-circuit of
cable, which might be caused by crushing or being caught in a machine, is taken into account.

If two or more sets of the SL-V units are used in the vicinity of each other, the protection measures
against light interference is done through a series connection method or light interference prevention
method.

All of NON-SAFETY-RELATED functions described in this user’s manual are not a part of / whole of
safety-related machine control system.
(3) Pre-check test while the machine is stopped.
You should do the following pre-check test with the test piece in order to make sure the operation of the
SL-V while the machine is stopped. In case of the detection capability of 45mm, you should use the test
piece with a diameter of 45mm.

The OSSD indicator on the SL-V lights in red and the OSSD turns OFF while the test piece is present
in the detection zone. The following figure shows the movement procedure of the test piece.

The OSSD indicator and all bar LEDS light in green if no test piece is present in the detection zone.

When the EDM function is applied, the SL-V goes to a lockout condition and the OSSD indicator on
the SL-V lights in red if the EDM input opens while the test piece is present in the detection zone.

The bar LEDs lights in green, the OSSD indicator continues to light in red, and the interlock indicator
lights in yellow, if the test piece is removed from the detection zone. This is only applicable in case of
manual reset mode.

The OSSD indicator lights in green and the interlock indicator lights OFF if the reset input is activated.
This is only applicable in case of manual reset mode.
Star
t
Stop