Outputs with single Category 2 relay with OTE outputs. Each MOR4/S8 unit can have
up to 4 of these outputs.
Features:
• Internal relays are always monitored.
• Monitored EDM feedback.
• The output can be configured to Manual or Automatic
restart. The EDM feedback monitor cannot be activated
with the manual restart. To monitor the EDM feedback
must be confi- gured automatic restart. In this case, if
you want to use the manual restart shall be provided a
dedicated logic. Refer to the following note.
(Output Test Equipment)
OTE (Output Test Equipment) is activated; this is necessary with configurations of category 2 for
the reporting of hazardous failures in accordance with EN 13849-1: 2006 / DAM1 (under
development).OTE output: normally ON. In case of fault of internal feedback or EDM => OFF.
This permits to inform the machine logic, with the aim of stopping the dangerous movement or at
least signaling the fault to the user.
OTE: The OTE (Output Test Equipment) output is normally 1 (TRUE) exept in the case of an internal
error or a fault associated with feedback from the external contactors (FALSE).
Figure 53
Outputs with two Category 4 relays. Each
MOR4/S8 unit can have up to 2 of these outputs.
With this output the relays are controlled in pairs.
Features:
• 2 double channel outputs.
• Double internal relays are monitored.
• Each output can be set as AUTO or MANUAL
RESTART.
In order to not affect the outcome of the calculation of the PL, the inputs (sensors or safety
devices) must be of a category equal to or higher than the other devices in the chain.