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E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ X9
` Safety gates
` Light barriers
Unit features
` Positive-guided relay outputs:
– 7 safety contacts (N/O), instantaneous
– 2 auxiliary contacts (N/C), instantaneous
` 2 semiconductor outputs
` Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Reset button
– Light barriers
` LED indicator for:
– Switch status channel 1/2
– Supply voltage
– Reset circuit
– Input circuits
` Semiconductor output signals:
– Supply voltage is present
– Switch status channel 1/2
` See order reference for unit types
Safety relay for monitoring E-STOP
pushbuttons, safety gates and light
barriers.
Approvals
PNOZ X9
Safety features
The relay meets the following safety
requirements:
` The circuit is redundant with built-in
self-monitoring.
` The safety function remains effective in the case of a component failure.
` The correct opening and closing of
the safety function relays is tested
automatically in each on-off cycle.
` The tranformer is short circuitproof. An electronic fuse is used on
a DC supply.
‹
Unit description
The safety relay meets the requirements of EN 60947-5-1, EN 60204-1
and VDE 0113-1 and may be used in
applications with
` E-STOP pushbuttons
‹
‹
Block diagram
B1 B2
=
=
S11 S12 S21 S22
Input
Input
S52
S33 S34
S37
Input
Reset/
Start
Reset/
Start
13 23 33 43 53 63 73 81 91
K1
K2
Power
=
~
A1 A2
Feedback
0 V 24 V
K3
Y1 Y2 Y30 Y31 Y32 Y35
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
14 24 34 44 54 64 74 82 92
NSG-D-2-037-2009-04
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ X9
Function description
` Single-channel operation: no redundancy in the input circuit, earth
faults in the reset and input circuit
are detected.
` Dual-channel operation without detection of shorts across contacts:
redundant input circuit, detects
– earth faults in the reset and input
circuit,
– short circuits in the input circuit
and, with a monitored reset, in
the reset circuit too.
` Dual-channel operation with detection of shorts across contacts: redundant input circuit, detects
– earth faults in the reset and input
circuit,
– short circuits in the input circuit
and, with a monitored reset, in
the reset circuit too,
– shorts between contacts in the
input circuit.