SICK miniTwin4 User Manual

DANGER
H
azard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
Downstream contactors must be positively guided and monitored depending on applic‐
able national regulations or required reliability of the safety function.
b
Make sure that downstream contactors are monitored (external device monitoring,
EDM).
Requirements for the electrical control of the machine
Bo
th outputs are short-circuit protected to 24 V DC and 0 V. When the protective field is
clear, the OSSDs are in the ON state. When a switch-off condition is present (e.g., inter‐
ruption in the light path), the OSSDs are in the OFF state. In the event of a device fault,
at least one OSSD is in the OFF state.
The safety light curtain complies with the rules for electromagnetic compatibility (EMC)
for the industrial sector (Radio Safety Class A).
Radio interference cannot be ruled out when used in residential areas.
NOTE
Usin
g the device in residential areas may cause radio interference. The operating entity
is responsible for taking appropriate measures (e.g., shielding).
DANGER
H
azard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
b
Make sure that the following control and electrical requirements are met so that
the safety light curtain can fulfill its protective function.
•
T
he external voltage supply of the safety light curtain must be capable of jumper‐
ing a brief power failure of 20 ms as specified in IEC 60204-1.
•
The power supply unit must ensure safe isolation according to IEC 61140
(SELV/PELV). Suitable power supply units are available as accessories from SICK,
see "Accessories", page 101.
4.4.1 Protective operation without reset and/or without EDM
If the miniTwin4 safety light curtain is configured in protective operation without reset
and/or EDM, t
he respective multifunctional connection or both multifunctional connec‐
tions must be routed to 0 V.
PROJECT PLANNING 4
8012624/10OM/2018-08-09 | SICK O P E R A T I N G I N S T R U C T I O N S | miniTwin4
31
Subject to change without notice

SICK miniTwin4 Specifications

General

Brand	SICK
Model	miniTwin4
Category	Security Sensors
Language	English