E-STOP relays, safety gate monitors
InputInput
A1 A2
K1
K2
14 24
S21 S22
S33 S34
=
Power
K3
K4
47 57
48 58
Reset
t
S31 S32
Input
Reset/
Start
Y39 Y40
Reset/
Start
S13 S14
S11 S12
=
34
13 23
33
Up to PL e of EN ISO 13849-1
PNOZ XV3.3P
Gertebild
][Bildunterschrift
Safety relay for monitoring E-STOP
pushbuttons and safety gates.
Approvals
PNOZ XV3.3P
Zulassungen
Unit features
Gertemerkmale
Positive-guided relay outputs:
– 3 safety contacts (N/O), instanta-
neous
– 2 safety contacts (N/O), delay-on
de-energisation
Connection options for:
– E-STOP pushbutton
– Safety gate limit switch
– Reset button
Delay-on de-energisation, fixed or
adjustable
Delay time can be cancelled via re-
set button
LED indicator for:
– Switch status channel 1/2
– Supply voltage
– Reset circuit
Plug-in connection terminals (either
spring-loaded terminal or screw
terminal)
See order reference for unit types
Unit description
Bestimmung/G erätebeschr eibung NOT- AUS, Schutz _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
Bestimmung/G erätebesch reibung_Ka tegorie_PN OZ
The max. category the safety contacts
can achieve in accordance with
EN 954-1 and EN ISO 13849-1 is stated in the technical details.
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 Zusatz - Sicherung DC_PNOZ
The unit has an electronic fuse.
Block diagram
Blockschaltbild
1002309-EN-02-2011-12
E-STOP relays, safety gate monitors
POWER
Input
Output safe del
t1 t2
t1
t2
t2t1
t3 t2
1 2
Output safe
Reset/Start
Reset t
v
t3
t1
t4
t3 t4 t3
t1
t2
t2t1
3
t3 t3
Up to PL e of EN ISO 13849-1
PNOZ XV3.3P
Function description
][Funktionen_einkanalig
Single-channel operation: no re-
dundancy in the input circuit, earth
faults in the reset and input circuit
are detected.
][Funktionen_zweikanalig_mit_quer_ber
Dual-channel operation with detec-
tion of shorts across contacts: redundant input circuit, detects
– earth faults in the reset and input
circuit,
Timing diagram
– short circuits in the input circuit
and, with a monitored reset, in
the reset circuit too,
– shorts between contacts in the
input circuit.
][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_del
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.
Key
Power: Supply voltage
Reset/start: Reset circuit S13-S14,
S33-S34
Input: Input circuits S11-S12, S21-
S22, S31-S32
Output safe: Safety contacts, in-
stantaneous 13-14, 23-24, 33-34
Wiring
][Verdrahtung_Si_unverz_verz
Please note:
Information given in the “Technical
details” must be followed.
Outputs 13-14, 23-24, 33-34 are in-
stantaneous safety contacts, outputs 47-48, 57-58 are delay-on deenergisation safety contacts.
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
= max. overall cable resist-
lmax
ance (see technical details)
Output safe del: Safety contacts,
delayed 47-48, 57-58
: Automatic reset
: Manual reset
: Monitored reset
a: Input circuit closes before reset
circuit
Rl / km = cable resistance/km
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
: Delay time
t
3
t
: Waiting period
4
1002309-EN-02-2011-12
-2
E-STOP relays, safety gate monitors
S1
S22
S21
S12
S32
S11
S31
S1
S22
S31
S32
S21
S12
S11
S1
S22
S21
S12
S32
S11
S31
S1
S2
S12
S11
S22
S32
S21
S31
Up to PL e of EN ISO 13849-1
PNOZ XV3.3P
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
Safety gate
with detection of shorts across contacts
1002309-EN-02-2011-12