12
EN
If several control units are mounted next to each other, a minimum clearance of 2 cm must be maintained
between the units in order to avoid overheating.
The control unit must be provided with 24 V DC ± 20% supply power.
External power supply must comply with EN 60204-1.
It is absolutely essential that terminals 17 and 18 are not short-circuited during installation.
Additional measures for the prevention of electrostatic discharge should be implemented during installation,
troubleshooting and adjustment.
It is advisable to furnish the connector cables with wire end ferrules before installing the light barriers.
3.2 Notes Regarding Connector Cables
• Cables with a cross-section of greater than 1 square mm must be used for connections between safety light bar-
riers and the control with lengths of more than 50 meters.
• Supply power for the control unit should be isolated from other electrical equipment (electrical motors, inverters,
frequency variators), as well as any other sources of interference.
• The connector cables between the control unit and the sensors, connector cables to the test command generator
and to the feedback contacts connected to terminal 20 must be laid separately from power conducting cables.
3.3 Terminal Assignments and LED Display
M1
M2
MUT
1
2
3
CH1
CH2/
Failure
OSSD/
DIAG
4
5
6
7
8
9
10 11 12
13
15
16 17 18
19 20 21
22 23 24
Terminal Designation
Input/
Output
Further
Information
1
Muting input 1
I
2
Muting input 2
I
3
24 V DC
–
–
4
Muting duration 1
I
5
Muting duration 2
I
6
Restart inhibit
I
7
Override 1
I
8
Override 2
I
9
S1 test
O
–
10
Muting signal
O
11
Muting enable
I
–
12
OSSD B contact 1
O
–
13
0 V
–
–
14
PE (ground)
–
–
15
Acknowledgement input
I
16
contact
I
17
S1 contact
I
–
18
S2 contact
I
–
19
S2 test
O
–
20
Contactor monitoring
I
21
Signal control
O
–
22
OSSD B contact 2
O
–
23
OSSD A contact 1
O
–
24
OSSD A contact 2
O
–
