Pilz PNOZ X2.9P Data Sheet
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ X2.9P
Gertebild
][Bildunterschrift_NOT_Sch.tuer_Licht
Safety relay for monitoring E-STOP
pushbuttons, safety gates and light
beam devices
Approvals
PNOZ X2.9P
SÜDDEUTSCHLAND
Unit features
Gertemerkmale
` Positive-guided relay outputs:
– 3 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
` Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Reset button
– Light barriers
` LED indicator for:
– Supply voltage
– Switch status channel 1/2
` Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
` See order reference for unit types
Unit description
Bestimmung/Gertebesc hreibung NOT-AUS , Schutzt, Lichtsc hr_PNOZ
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
` Safety gates
` Light beam devices
Safety features
][Sicherheitseigenscha ften Schaltgerät_allgem einer Teil
The relay meets the following safety
requirements:
` The circuit is redundant with built-in
self-monitoring.
` The safety function remains effec-
tive 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.
Sicherheitseigenschaften
` No galvanic isolation between sup-
ply voltage and input circuit
Zulassungen
Block diagram
Blockschaltbild
A1 A2 Y36 Y37
S11 S12 S52
=
Input
S34
Reset/
Start
=
Power
13 23 33 41
K1
K2
14 24 34 42
1002002-EN-02-2011-01
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ X2.9P
Function description
][Funktionen_einkanalig_Erd_Start
` Single-channel operation: no re-
dundancy in the input circuit, earth
faults in the reset circuit are detected.
][Funktionen_zweikanalig_ohne_quer
` Dual-channel operation without de-
tection of shorts across contacts:
redundant input circuit, detects
– earth faults in the reset and input
Timing diagram
1 2
POWER
Reset/Start
Input
Output safe
Output aux.
t1 t2
t1 t2
Key
` Power: Supply voltage
` Reset/start: Reset circuit S12-S34,
Y36-Y37
` Input: Input circuits S11, S12, S52
` Output safe: Safety outputs 13-14,
23-24, 33-34
circuit,
– short circuits in the input circuit
and, with a monitored reset, in
the reset circuit too.
][Funktionen_autoStart
` Automatic start: Unit is active once
the input circuit has been closed.
][Funktionen_manuStart
` Manual reset: Unit is active once
the input circuit is closed and then
the reset circuit is closed.
][Funktionen_berStart_Wartezeit
][Zeitdiagramm_auto_manu_ueber2_aux
ab
t1
t1
t2
` Output aux: Auxiliary contacts 41-
42
` c: Automatic reset
` d: Manual reset
` e: Monitored reset
` a: Input circuit closes before reset
circuit
` Monitored reset: Unit is active once
the input circuit is closed and once
the reset circuit is closed after the
waiting period has elapsed
(see technical details).
][Funktionen_Kontaktvervielfachung
` Increase in the number of available
instantaneous safety contacts by
connecting contact expansion
modules or external contactors.
3
t2
t1 t2 t1 t2t3 t3
` b: Reset circuit closes before input
circuit
: Switch-on delay
` t
1
` t2: Delay-on de-energisation
: Waiting period
` t
3
Wiring
][Verdrahtung_Si_unverz_1Hi_unverz
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24, 33-34 are
safety contacts, output 41-42 is an
auxiliary contact (e.g. for display).
` To prevent contact welding, a fuse
should be connected before the
output contacts (see technical details).
` Calculation of the max. cable runs
in the input circuit:
l
max
R
lmax
=
I
max
Rl / km
R
= max. overall cable resist-
lmax
ance (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.
1002002-EN-02-2011-01
-2
E-STOP relays, safety gate monitors
Up to PL e of EN ISO 13849-1
PNOZ X2.9P
Preparing for operation
Betriebsbereitschaft her stellen
` Supply voltage
Supply voltage AC DC
` Input circuit
Input circuit Single-channel Dual-channel
E-STOP
without detection of shorts across contacts
E-STOP
with detection of shorts across contacts
Safety gate
without detection of shorts across contacts
S11
S12
S52
S11
S12
S52
S1
S1
S11
S12
S52
A1
A2
S11
S12
S52
S1
L+
L-
S1
S2
Safety gate
with detection of shorts across contacts
Light beam device
with detection of shorts across contacts
via ESPE
24 V DC
S12
S52
1002002-EN-02-2011-01
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