Pilz PNOZ X10.1 Data Sheet
E-STOP relay, safety gate monitor
Up to Category 4, EN 954-1
PNOZ X10.1
Safety relay for monitoring E-STOP
pushbuttons, safety gates and light
barriers.
Approvals
PNOZ X10.1
Unit features
` Positive-guided relay outputs:
– 6 safety contacts (N/O), instanta-
neous
– 4 auxiliary contacts (N/C), in-
stantaneous
` 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
` See order reference for unit types
Unit description
The safety relay meets the requirements of EN 60204-1 and IEC 602041 and may be used in applications with
` E-STOP pushbuttons
` Safety gates
` Light barriers
Safety features
` The circuit is redundant with built-in
self-monitoring.
` The safety function remains effecti-
ve 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 circuit-
proof. An electronic fuse is used on
a DC supply.
Block diagram
~
Power
=
S11 S12A1 A2
Feed-
back
Y1 Y2
S21 S22
InputInput
The relay conforms to the following
safety criteria:
Y3
Input
S33 S34
Reset/
Start
S37
Reset/
Start
13 23
K1
K2
K3
14 24
33 43 53 63 71 81 91 01
34 44 54 64 72 82 92 02
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-259-12/04
E-STOP relay, safety gate monitor
Up to Category 4, EN 954-1
PNOZ X10.1
Function description
` Single-channel operation: no red-
undancy in the input circuit, earth
faults in the reset and input circuit
are detected.
` Dual-channel operation without de-
tection 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.
Timing diagram
1 2
POWER
Reset/Start
Input
Output safe
Output aux.
t1 t2
t1 t2
` Dual-channel operation with detec-
tion 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.
` Automatic start: Unit is active once
the input circuit has been closed.
ab
t1
t1
t2
t2
` Manual reset: Unit is active once
the input circuit is closed and then
the reset circuit is closed.
` Monitored reset: Unit i s ac t iv e o nc e
– the input circuit is closed and
then the reset circuit is closed
and opened again.
– the reset circuit is closed and
then opened again once the input circuit is closed.
` Increase in the number of available
contacts by connecting contact expander modules or external contactors/relays.
ab
t1
3
t2
t2
t1
Key
` Power: Supply voltage
` Reset/start: Reset circuit S33(S12)-
S34
` Input: Input circuits S12-Y3, S21-
S22
` Output safe: Safety contacts 13-14,
23-24, 33-34, 43-44, 53-54, 63-64
Wiring
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24, 33-34, 43-
44, 53-54, 63-64 are safety contacts, outputs 71-72, 81-82, 91-92,
01-02 are auxiliary contacts (e.g. for
display).
` To prevent contact welding, a fuse
should be connected before the
output contacts (see technical details).
` Calculation of the max. cabling runs
in the input circuit:
l
max
R
lmax
=
I
max
Rl / km
` Output aux: Auxiliary contacts 71-
72, 81-82, 91-92, 01-02
` c: Automatic reset
` d: Manual reset
` e: Monitored reset
` a: Input circuit closes before reset
circuit
R
= max. overall cable resi-
lmax
stance (see technical details)
/km = cable resistance/km
R
l
` Use copper wire that can withstand
60/75 °C.
` Sufficient fuse protection must be
provided on all output contacts with
capacitive and inductive loads.
` b: Reset circuit closes before input
circuit
: Switch-on delay
` t
1
: Delay-on de-energisation
` t
2
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-259-12/04Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
E-STOP relay, safety gate monitor
Up to Category 4, EN 954-1
PNOZ X10.1
Preparing for operation
` Supply voltage
Supply voltage AC DC
A1
A2
L1
N
PE
` Input circuit
Input circuit Single-channel Dual-channel
E-STOP
without detection of shorts across
contacts
S12
Y3
S12
S11
S21
S22
S1
S21
S22
E-STOP
with detection of shorts across contacts
S11
Y3
Safety gate
without detection of shorts across
contacts
S12
Y3
S12
S11
S21
S22
S1
S21
S22
S11
S12
Y3
A1
A2
S11
S12
S11
S21
S22
S12
Y3
S1
L+
L-
S1
S1
S2
Safety gate
with detection of shorts across contacts
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
S11
Y3
S11
S12
S22
S21
S1
NSG-D-2-259-12/04
S2
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