SICK UE 4215 Manual Del Usuario página 110

Chapter
WARNING
,
110
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
The outputs must switch off for a period of at least 51 ms.
+
Devices with outputs with contacts, e.g. emergency stop buttons, are
not allowed to be connected to the safe busnode UE 4215, as they do
not meet the stated safety requirements.
ESPE that is used with the restart interlock function (reset button on
the sensor) always meet the requirements for the minimum switch off
time.
ESPE with switch off times shorter than 51 ms are not recommended,
as they restrict the availability in the AS-interface safety monitor
depending on the monitoring module set in the safety monitor as
follows:
With the "two-channel forced" setting, the safety monitor may
switch to the error state. To clear the error state, the power supply
to the safety monitor must be interrupted.
With the "two-channel dependant" setting the safety monitor only
permits the enable after adequate switch off time. The enable can
be achieved by triggering the ESPE for at least 51 ms.
ESPE of control category 2 can be evaluated using the "two-channel
independant" monitoring module. In this case there are no limitations
to be observed.
3 8
The power supply to the AUX PWR socket (black AS-interface cable) is
only allowed to be provided via
SELV networks
or
PELV networks
- /
- # $
Operating Instructions
/ 5
# 9 13
8 010 654/O571/19-08-04