SICK UE402 - Start sequence (PSDI mode initiation)

Operating Instructions Chapter 3
UE402
8009874/YT67/2016-02-22 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 15
Subject to change without notice
Product description
Start sequence (PSDI mode initiation)
The UE402 support three start sequences in PSDI mode:
Standard Alternative
(“Sweden Mode”)
Without
restart interlock
The machine cycle contact MCC-TDC must be connected. Requirements
The internal restart interlock of the C4000
must be activated.
The internal restart
interlock of the
C4000 is
deactivated.
An external restart
interlock must be
available.
You have just switched on the machine or have switched the
machine to an operating mode with the PSDI mode.
The  Yellow LED
of the host system
is illuminated
constantly.
The  Yellow LED
of the host system
is flashing.
The  Yellow LED
of the host system
is illuminated
constantly.
 Reach once or
twice into the
protective field
according to the
PSDI mode.
 Press the reset
button.
 Press the reset
button.
 Reach once or
twice into the
protective field
according to the
PSDI mode.
 Reach once or
twice into the
protective field
according to the
PSDI mode.
Start sequence
Procedure
The machine runs until it reaches the top dead centre and waits
there for the cycle. The  Yellow LED of the host receiver is then
illuminated constantly.
Interruption
during the
downward
movement ()
The safety light curtain changes to red.
Interruption
during the
upward
movement ()
The behavior of the safety light curtain depends on the PSDI
control (see “Eccentric press mode” further below).
PSDI cycle
Interruption
during the
stopping phase
()
First interruption: PSDI starts
Last interruption: PSDI ends. The safety light curtain reverts to
Green as soon as the protective field interruption is ended.
Tab.
1
:
Possible start
sequences in PSDI mode