
Operating Instructions
Chapter
4
UE 440/470
8 010 432/P097/14-03-05
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
37
Configurable functions
4.3.4
Start sequence (PSDI mode initiation)
The UE 470 supports three start sequences in PSDI mode:
Standard
Alternative
("Sweden Mode")
Without restart
interlock
The machine cycle contact TDC must be connected.
Requirements
The internal restart interlock of
the PSDI
application (UE 470)
must be activated.
The internal restart
interlock of the
PSDI application
(UE 470) 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.
A lamp connected
to the "PSDI lamp“
of the PSDI module
is illuminated
constantly.
A lamp connected
to the "PSDI lamp“
of the PSDI module
is flashing.
A lamp connected
to the "PSDI lamp“
of the PSDI module
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 sequenc
e
Procedure
The machine runs until it reaches the top dead centre and waits
there for the PSDI. A lamp connected to the "PSDI lamp“ of the
PSDI module is illuminated constantly.
Interruption
during the
downward
movement (
)
The PSDI sensor (e.g. C 4000) signals the interruption. The OSSD
of the UE 470 switches off. The LED
,
red
of the UE 470 then
illuminates constantly.
Interruption
during the
upward
movement (
)
The behaviour of the UE 470 depends on the PSDI control (see
"Deactivation of the restart interlock during upward movement"
and "Eccentric presses" below).
PSDI cycle
Interruption
during the
stopping phase
(
)
First interruption: PSDI start
Last interruption: PSDI end. The UE 470 switches back to green
as soon as the protective field interruption is ended.
Tab. 11: Possible start
sequences in PSDI mode