IDEC SE1L Manual page 10

SE1L
Safety Laser Scanner
Lockout
When an error is detected by the self-diagnosis function
normal operation cannot be performed, and SE1L will
change to a lockout state. In this condition, the OSSD1, 2
and WARNING 1, 2 signals turn OFF. Only when the cause
of the error is removed and the power is reset, the lockout
state can be cleared.
Relations between OSSD output and ERR output
Cause
Object detection
Device error
OSSD Interlock
Interlock is a function to prevent the OSSD signal restarting
automatically from OFF to ON. The following functions can
be set using the SLS Configurator.
Automatic restart
When the interlock function is disabled or restart interlock
is set to automatic mode, the SE1L will operate in
automatic restart mode. When the objects in the protection
zone are removed, the OSSD signal will automatically turn
from OFF to ON.
In the figure below, "a" is the OFF delay and "b" is the ON
delay. However, if the OSSD signal changes due to lockout
of the sensor, the OSSD signal will remain OFF even when
the interlock function is disabled.
Time chart (automatic restart)
ON
Object
Detection
OFF
ON
OSSD
OFF
OFF Delay
Note:
x When using automatic restart, because the OSSD automatically turns ON
when the object is removed, take appropriate safety precautions.
x When using the delay function, make sure that the delay time is sufficient
to stop the machine or AGV.
10
OSSD ERR
OFF ON
OFF OFF
a b
ON Delay
Manual Restart
When the restart interlock is set to manual, the OSSD
signal will remain OFF even when the object in the
protection zone is removed or when an error is cleared. For
the SE1L to return to normal operation, an external reset
input signal is required to clear the interlock. The SE1L
will resume normal operation when there is a reset signal.
The time for the reset signal should be 0.5s minimum.
When the reset delay is set to "c" as shown in the figure
below, the OSSD signal will turn ON when the OSSD signal
reaches the delay time. However, if the OSSD signal turns
OFF due to internal failure, the OSSD signal remains OFF
regardless of the set delay time. The reset delay can be set
from 1 second to 6 seconds.
Time chart
ON
Object
OFF
Detection
ON
OSSD
OFF
ON
RES_REQ
OFF
ON
RESET
OFF
x The operator must check that the object is
removed before resetting the SE1L.
x When using the manual restart to restart the
machine, the reset switch must be installed far
away from the protection zone.
x If the above measures are not taken, critical
injury or death may result
Note: If the OSSD signal remains OFF even when the object is removed
from the protection zone, check the error code and troubleshooting.
For details, see the user's manual.
Manual Start
The configuration for start interlock can only be configured
manually. This function is used to maintain the OSSD in an
OFF state until the external reset signal is input at start-up.
The RES_REQ signal turns ON after start-up preparation
and ready to receive the reset signal. When the reset signal
is input, if there is no object in the protection zone, the
OSSD signal will turn ON. The input time of the reset signal
must be more than 0.5 seconds.
Time chart (manual start)
ON
Power
OFF
ON
Object
OFF
Detection
Ready for Operation
ON
OSSD
OFF
ON
RES_REQ
OFF
ON
RESET
OFF
c
Reset Display
.
ON Delay
(14/04/28)