Chapter # Operating Instructions
10 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8 009 874/31-03-03
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This chapter provides information on the special features and properties of the UE 402. It
describes the construction and the operating principle of the device, in particular the dif-
ferent operating modes in connection with the safety light curtain C 4000.
Please read this chapter before mounting, installing and commissioning the device.
The functions of the UE 402 can only be used in conjunction with the C 4000 safety light
curtain Standard or C 4000 Advanced with the following entry on the type label in the field
Software version: 3.00 or later.
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The switching amplifier UE 402 extends the application possibilities of the safety light
curtain C 4000:
6 operating modes are predefinable (see page 16)
PSDI mode (see page 12)
protective field evaluation bypass (see page 11)
teach-in mode: Adjusting the blanked-out areas directly on the device through the
corresponding objects in the protective field (see page 16)
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The UE 402 is an electronic module. It processes certain signals of the safety light curtain
C 4000 or the cascading C 4000 and merges them with the signals of other connected
systems. These systems may include:
an operating mode selector switch
a teach-in key-operated switch
a key-operated pushbutton for bypass
machine cycle contacts, e.g. for the top and bottom dead centres of a press
The UE 402 is usually installed in the control cabinet.
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This chapter describes the functions of the safety light curtain C 4000 which are select-
able via software, which can only be used in connection with switching amplifier UE 402.
The functions can be partially combined with the other configurable functions of the safety
light curtain.
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Each time the configuration is changed you must test the effectiveness of the entire pro-
tective device (see chapter titled “Test notes” in the operating instructions of the safety
light curtain C 4000).
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WARNING
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