SICK LE20 Instrucciones De Operación página 304

Chapter 3
WARNING
3 0 4
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
Product description
Muting indicator lamp
An external muting indicator lamp is required to indicate when
muting mode is active. This lamp is obligatory and the muting
function is not possible without it.
The muting indicator lamp is monitored to ensure that it is func-
tioning correctly. Two lamps can be connected to ensure redundant
operation if one of the lamps fails. If only one lamp is used, it must
be connected to LAMP 1. LAMP 2 must then be connected to the
adjacent Intercon.+ terminal using a wire link. If LAMP 1 fails,
LAMP 2 flashes, provided that it is connected, and LAMP 1 can
then be changed without the system having to be shut down.
The muting lamps must be visible from the control panel!
The muting lamps must be visible from the system control panel.
Technical data:
Voltage supply
Wattage of bulb
Cable length (max.)
Service life of bulb
The muting indicator lamp shown below is available from SICK as
an accessory:
Fig. 3-6: Muting indicator lamp with bulb and wall-mounting kit,
Part No. 2 020 743
Also available as accessories, for this purpose, are the LED muting
lamps with the part numbers 2 019 909 and 2 019 910 (supplied
with connecting cable).
Safety Evaluation Unit LE 20
24 V DC (from safety evaluation unit)
1 ... 10 W
10 m
approx. 2500 hrs
Operating Instructions
8 008 685/Q913/2007-05-21