Chapter
6
Operating Instructions
miniTwin2
56
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8013482/YT85/2016-02-23
Subject to change without notice
Commissioning and
configuration
6.6
Configuration of the external device monitoring (EDM)
You do not have to activate external device monitoring separately.
Connect the contacts to be monitored to the external device monitoring input (EDM)
(see section 5.5 “External device monitoring (EDM)” on page 49).
Switch on the safety light curtain and any relay/contactor connected.
The first time the OSSDs are switched, the safety light curtain activates the external
device monitoring and saves the configuration in the device.
The EDM LED
Orange
is illuminated.
Then check the function of the EDM. If the EDM has not been activated, then repeat the
whole process.
The EDM signal (+24 V DC) must be present at the latest within 4 minutes of switching
on. Otherwise the system locks completely 4 minutes after switching on (lock
A
out).
EDM is stored in non-volatile memory in the device. The function can only be
deactivated by consciously resetting the configuration (see section 6.8 “Deactivating
Reset and EDM” on page 58).
6.7
Test notes
Check the protective device as described below and in accordance with the applicable
standards and regulations.
These tests are also used to identify if the protection is affected by external light sources
or other unusual ambient effects.
These tests must therefore always be performed.
6.7.1
Tests before the initial commissioning
Check the effectiveness of the protective device mounted to the machine, using all
selectable operating modes on the machineas per the checklist in the annex (see 11.2
on page 79).
Ensure that the operating personnel of the machine protected by the safety light curtain
are correctly instructed by qualified safety personnel before being allowed to operate
the machine. Instructing the operating personnel is the responsibility of the machine
owner.
Annex 11.2 of this document shows a checklist for review by the manufacturer and
OEM. Use this checklist as a reference before commissioning the system for the first
time.
6.7.2
Regular inspection of the protective device by qualified safety personnel
Check the system following the inspection intervals specified in the national rules and
regulations. This procedure ensures that any changes on the machine or manipulations
of the protective device after the initial commissioning are detected.
If any modifications have been made to the machine or the protective device, or if the
safety light curtain has been changed or repaired, the system must be checked again as
specified in the checklist in the annex.
Notes
