SICK LE20 Instrucciones De Operación página 309

Operating Instructions
LE 20
Safety evaluation unit LE 20 Muting
Pin-No. Marking
18 LAMP 1
19 LAMP 2
20 Intercon.+
21 Intercon.+
22 CONCURR.
23 SEQUENCE
24 Intercon.+
25 Intercon.+
26 BIT 2
27 BIT 1
28 Intercon.+
29 M 4
30 M 3
31 M 2
32 M 1
Tab. 5-2: Terminal assignment LE 20 Muting, nc = not connected
Number of CONCURR.
muting sensors
4 nc
nc
Intercon.+
Intercon.+
3 nc
Intercon.+
nc
2
Intercon.+
Tab. 5-3: Configuration of the muting monitoring functions, nc = not connected
8 008 685/Q913/2007-05-21
Electrical installation
Meaning (I = input, O = output)
I: 24 V PNP output for activating muting lamp, I
I/O: 24 V PNP output for activating a redundant muting lamp,
I = 500 mA. If LAMP 1 only is connected,
max
LAMP 2 must be connected to Intercon.+.
O: Auxiliary control voltage (U
O: Auxiliary control voltage (U
I: Concurrence monitoring, see Tab. 5-3
I: Sequence monitoring, see Tab. 5-3
O: Auxiliary control voltage (U
O: Auxiliary control voltage (U
I: Configuration for respective number of installed muting photoelectric switches:
Bit 1 Bit 2
nc nc
Intercon.+ nc
nc Intercon.+
Intercon.+ Intercon.+
O: Auxiliary control voltage (U
I: Muting photoelectric switch 4
I: Muting photoelectric switch 3
I: Muting photoelectric switch 2
I: Muting photoelectric switch 1
SEQUENCE Muting monitoring:
Muting condition +
nc Sequence monitoring
Intercon.+ Concurrence monitoring
nc Sequence monitoring with direction monitoring
Intercon.+ (Muting condition only)
nc Concurrence monitoring with direction monitoring
Intercon.+ (Only muting condition +) direction monitoring
nc Concurrence monitoring
Intercon.+ (Muting condition only)
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= 500 mA
max
)
B
)
B
)
B
)
B
4 sensors
3 sensors
2 sensors
Not permitted
)
B
GB
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