Pilz PNOZ x3 Data Sheet

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Safety relay for monitoring E-STOP
pushbuttons and safety gates.

Approvals

PNOZ X3







Unit features

` Positive-guided relay outputs:

– 3 safety contacts (N/O), instanta-

neous

– 1 auxiliary contact (N/C), instan-

taneous

` 1 semiconductor output
` Connection options for:

– E-STOP pushbutton
– Safety gate limit switch
– Reset button

` LED indicator for:

– Switch status channel 1/2
– Supply voltage

` Semiconductor output signals:

– Switch status channel 1/2

` See order reference for unit types

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
` Safety gates

Safety features

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.

` The tranformer is short circuit-

proof. An electronic fuse is used on
a DC supply.

Block diagram

S11 S12A1 A2

~

~

Power

=

=

B1 B2 Y31

24 V

S21 S22

Y32

Input

S13 S14

Reset/

Start

S33 S34

Reset/

Start

K1

K2

23 33 41

13

14 24 34 42

S31 S32

InputInput

Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Function description

` Single-channel operation: no re-

dundancy in the input circuit, earth
faults in the reset and input circuit
are detected.

` Dual-channel operation with detec-

tion of shorts across contacts: re­dundant input circuit, detects

Timing diagram

POWER

Reset/Start

Input

Output safe

Output aux.

Out semi CH

– 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.

1 2

t1 t2 t1 t2

t3

` 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).

` Increase in the number of available

contacts by connecting contact ex­pander modules or external contac­tors/relays.

t1

t2

t3

t1 t2

Key

` Power: Supply voltage
` Reset/start: Reset circuit S13-S14,

S33-S34

` Input: Input circuits S11-S12, S21-

S22, S31-S32

Wiring

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

= max. overall cable resist-

R

lmax

ance (see technical details)

/km = cable resistance/km

R

l

` Use copper wire that can withstand

60/75 °C.

` Output safe: Safety contacts 13-14,

23-24, 33-34

` Output aux: Auxiliary contacts 41-

42

` Out semi CH: Semiconductor out-

put switch status channel 1/2

` Sufficient fuse protection must be

provided on all output contacts with
capacitive and inductive loads.

` c: Automatic reset
` d: Monitored reset

: Switch-on delay

` t

1

` t2: Delay-on de-energisation

: Waiting period

` t

3

Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-2

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Preparing for operation

` Supply voltage

Supply voltage AC DC

A1

A2

B2 PE

L1

N

` 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

S21

S22

S21

S22

S12

S11

S32
S31

S12

S11

S32
S31

S1

S11

S12

S1

B1

B2

S22

S32

S31
S21

L+

L-

S1

Safety gate
with detection of shorts across contacts

Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

S11

S12

S22

S21

S32
S31

S1

S2

NSG-D-2-036-2006-07

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

` Reset circuit

Reset circuit E-STOP wiring, safety gate Safety gate (dual-channel)

Automatic reset

S13

S14

Monitored reset

S33

S34

S3

` Feedback loop

Feedback loop Automatic reset Monitored reset

Contacts from external contactors

S13

S14

13 (23, 33)
14 (24, 34)

K5

K6

K5

K6

L1

N

` Semiconductor output

Y31

Y32

B2

24 V DC

SPS Input

SPS 0 V

0 V

S13

S14

S33

S34
13 (23, 33)
14 (24 ,34)

K5

K6

K5

K6

S2S1

S3

L1

N

` Key

S1/S2 E-STOP/safety gate switch

S3 Reset button

Switch operated

Gate open

Gate closed

Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-4

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Terminal configuration

19968

S31 S32 S11 S12 S13 S14

A1 B1 13

PNOZ X3

POWER

CH. 1

CH. 2

14 24 34 A2B242

Y32

Y31

S2123S2233S3341S34

3313 23 41

14 24 34 42

Installation

` The safety relay should be installed

in a control cabinet with a protec­tion type of at least IP54.

` Use the notch on the rear of the unit

to attach it to a DIN rail.

` Ensure the unit is mounted securely

on a vertical DIN rail (35 mm) by us­ing a fixing element (e.g. retaining
bracket or an end angle).

Dimensions

75 (2.95")

87 (3.42")

121 (4.76")

45

(1.77")

Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Notice

Service life graph

This data sheet is only intended for use
during configuration. For installation
and operation, please refer to the op­erating instructions supplied with the

10

AC15: 230 V

unit.

DC13: 24 V

1

D Nennbetriebstrom (A)

GB Nominal operating current (A)

F Courant coupé (A)

Technical details

Electrical data

Supply voltage
Supply voltage U
Supply voltage U

AC 24 V, 42 V, 48 V, 110 V, 115 V, 120 V, 230 V, 240 V

B

DC 24 V

B

Voltage tolerance -15 %/+10 %
Power consumption at U
Power consumption at U

AC 5.0 VA

B

DC 2.5 W

B

Frequency range AC 50 - 60 Hz
Residual ripple DC 160 %
Voltage and current at
Input circuit DC: 24.0 V 50.0 mA
Reset circuit DC: 24.0 V 35.0 mA
Feedback loop DC: 24.0 V 20.0 mA
Number of output contacts
Safety contacts (S) instantaneous: 3
Auxiliary contacts (N/C): 1
Category of output contacts in accordance with EN 954-1
Safety contacts (S) instantaneous: 4
Utilisation category in accordance with EN 60947-4-1
Safety contacts: AC1 at 240 V I

Safety contacts: DC1 at 24 V I

Auxiliary contacts: AC1 at 240 V I

Auxiliary contacts: DC1 at 24 V I

Utilisation category in accordance with EN 60947-5-1
Safety contacts: AC15 at 230 V I
Safety contacts: DC13 at24 V (6 cycles/min) I
Auxiliary contacts: AC15 at 230 V I
Auxiliary contacts: DC13 at24 V (6 cycles/min) I
Contact material AgSnO2 + 0.2 µm Au

0.1

E Corriente nominal de servicio (A)

I Corrente di esercizio nominale (A)

NL Nominale bedrijfsstroom (A)

10 100 1000 10000

D Schaltspielzahl x 10
GB Cycles x 10
F Nombre de manvres x 10

: 0.01 A , I

min

P

: 2000 VA

max

: 0.01 A , I

min

: 200 W

P

max

: 0.01 A , I

min

P

: 2000 VA

max

: 0.01 A , I

min

P

: 200 W

max

: 5.0 A

max

: 6.0 A

max

: 5.0 A

max

: 6.0 A

max

3

3

: 8.0 A

max

max

max

max

3

: 8.0 A

: 8.0 A

: 8.0 A

DC1: 24 V

AC1: 230 V

E Número de ciclos x 10
I Numero dei cicli di commutazione x 10
NL Aantal schakelingen x 10

3

3

3

Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-6

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Electrical data

External contact fuse protection (IK = 1 kA) to EN 60947-5-1
Blow-out fuse, quick
Safety contacts: 10 A
Auxiliary contacts: 10 A
Blow-out fuse, slow
Safety contacts: 6 A
Auxiliary contacts: 6 A
Circuit breaker 24 VAC/DC, characteristic B/C
Safety contacts: 6 A
Auxiliary contacts: 6 A
Semiconductor outputs (short circuit proof) 24.0 V DC, 20 mA
External supply voltage 24.0 V DC
Voltage tolerance -20 %/+20 %
Max. overall cable resistance R
input circuits, reset circuits
single-channel at U
single-channel at U
dual-channel with detect. of shorts across contacts at U
dual-channel with detect. of shorts across contacts at U

Times

Switch-on delay
with automatic reset typ. 250 ms
with automatic reset max. 500 ms
with automatic reset after power on typ. 280 ms
with automatic reset after power on max. 550 ms
on monitored reset with rising edge typ. 35 ms
on monitored reset with rising edge max. 50 ms
Delay-on de-energisation
with E-STOP typ. 15 ms
with E-STOP max. 30 ms
with power failure typ. 50 ms
with power failure max. 70 ms
Recovery time at max. switching frequency 1/s
after E-STOP 50 ms
after power failure 100 ms
Waiting period with a monitored reset
with rising edge 300 ms
Min. start pulse duration with a monitored reset
with rising edge 30 ms
Simultaneity, channel 1 and 2 ∞
Supply interruption before de-energisation 20 ms

Environmental data

EMC EN 12015, EN 12016, EN 60947-5-1, EN 61000-6-2
Vibration to EN 60068-2-6
Frequency 10 - 55 Hz
Amplitude 0.35 mm
Climatic suitability EN 60068-2-78
Airgap creepage EN 60947-1
Rated insulation voltage 250 V
Rated impulse withstand voltage 4.0 kV
Ambient temperature -20 - 55 °C
Storage temperature -40 - 85 °C
Protection type
Mounting (e.g. cabinet) IP54
Housing IP40
Terminals IP20

DC 150 Ohm

B

AC 180 Ohm

B

lmax

DC 15 Ohm

B

AC 30 Ohm

B

Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ X3

Mechanical data

Housing material
Housing PPO UL 94 V0
Front ABS UL 94 V0
Max. cross section of external conductors with screw terminals
1 core flexible 0.20 - 4.00 mm² , 24 - 10 AWG
2 core, same cross section, flexible:
with crimp connectors, without insulating sleeve 0.20 - 2.50 mm² , 24 - 14 AWG
without crimp connectors or with TWIN crimp connectors 0.20 - 2.50 mm² , 24 - 14 AWG
Torque setting with screw terminals 0.60 Nm
Dimensions
Height 87.0 mm
Width 45.0 mm
Depth 121.0 mm
Weight 375 g

The standards current on 08/02 apply.

Conventional thermal current

Number of contacts I
1 8.00 A 8.00 A
2 8.00 A 7.50 A
3 7.00 A 6.50 A

Order reference

Type Features Terminals Order no.

PNOZ X3 24 VAC/DC 24 VDC Screw terminals 774 310
PNOZ X3 42 VAC 24 VDC Screw terminals 774 311
PNOZ X3 48 VAC 24 VDC Screw terminals 774 312
PNOZ X3 110 VAC 24 VDC Screw terminals 774 314
PNOZ X3 115 VAC 24 VDC Screw terminals 774 315
PNOZ X3 120 VAC 24 VDC Screw terminals 774 316
PNOZ X3 230 VAC 24 VDC Screw terminals 774 318
PNOZ X3 240 VAC 24 VDC Screw terminals 774 319

(A) at UBDC Ith(A) at UBAC

th

Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]

NSG-D-2-036-2006-07Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

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