Pilz PNOZ X4 Data Sheet

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

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

Approvals

PNOZ X4





Unit features

` 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:

– Switch status channel 1/2
– Supply voltage

` 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

The relay conforms to the following
safety criteria:

S21 S22

InputInput

S52

Input

S33 S34

Reset/

Start

Y36 Y37

Reset/

Start

K1

K2

23 33 41

13

14 24 34 42

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

NSG-D-2-128-01/05

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

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

Timing diagram

1 2

POWER

Reset/Start

Input

Output safe

Output aux.

t1 t2

t1 t2

the reset circuit too.

` 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 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.

3

t1 t2 t1 t2t3 t3

Key

` Power: Supply voltage
` Reset/start: Reset circuit S33-S34
` Input: Input circuits S11-S12, S21-

S22, S52

` Output safe: Safety outputs 13-14,

23-24, 33-34

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

` Output aux: Auxiliary contacts 41-

42

` 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

` t2: Delay-on de-energisation

: Waiting period

` t

3

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

NSG-D-2-128-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-2

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

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

S21
S22

S11
S12
S52

S1

S21
S22

E-STOP
with detection of shorts across con­tacts

S11
S52

Safety gate
without detection of shorts across
contacts

S21
S22

S11
S12
S52

S1

S21
S22

S11

S12
S52

A1

A2

S11

S12
S52

S11
S21
S22

S12

S1

L+

L-

S1

S1

S2

Safety gate
with detection of shorts across con­tacts

Light barrier with detection of shorts
across contacts via ESPE

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

S21
S22

S11
S52

S11
S12
S21
S22

S12
S52

S1

NSG-D-2-128-01/05

S2

24 V DC

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

` Reset circuit

Reset circuit E-STOP wiring (single-channel)

Safety gate (single-channel)

Automatic reset

S33
S34

Y36
Y37

Manual reset

S33
S34
Y36
Y37

Monitored reset

S33
S34
Y36
Y37

S3

S3

E-STOP wiring (dual-channel)
Safety gate (dual-channel)

S33
S34
Y36
Y37

S33
S34
Y36
Y37

` Feedback loop

Feedback loop Automatic reset Manual/monitored reset
Link

Y1

S33
S34

Y36
Y37

S3

S3

Y1

Contacts from external contactors

` Key

S1/S2 Two-hand button

S3 Reset button

Switch operated

Gate open

Gate closed

Y1
Y2

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

Y2

K5

K6

K5

K6

L1
N

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

Y1
Y2

Y2

K5

K6

K5

K6

L1
N

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

NSG-D-2-128-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-4

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

Terminal configuration

S11 S52 S12 13 23 33

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

A1 S11 S12

PNOZ X4

POWER
CH. 1
CH. 2

A2 Y1 Y2 42S34S33

19955

S21

S22

Y3614Y372441

3313 23 41

14 24 34 42

34

121 (4.76")

75 (2.95")

87 (3.42")

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

45 (1,77")

NSG-D-2-128-01/05

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

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)

Technical details

Electrical data

Supply voltage
Supply voltage U
Supply voltage U

AC 24 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 Order no.: 774731, 774734, 774735, 774736, 774738,

B

DC 2.5 W Order no.: 774730

B

Frequency range AC 50 - 60 Hz
Residual ripple DC 160 %
Voltage and current at
input circuit DC: 24.0 V 40.0 mA
reset circuit DC: 24.0 V 70.0 mA Order no.: 774730

feedback loop DC: 24.0 V 70.0 mA Order no.: 774730

Output contacts in accordance with EN 954-1 Category 4 Safety contacts (N/O): 3

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 at 24 V (6 cycles/min) I
Auxiliary contacts: AC15 at 230 V I
Auxiliary contacts: DC13 at 24 V (6 cycles/min) I
Contact material AgSnO2 + 0.2 µm Au

0.1

F Courant coupé (A)

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

3

3

3

774739

90.0 mA Order no.: 774731, 774734, 774735, 774736, 774738,
774739

90.0 mA Order no.: 774731, 774734, 774735, 774736, 774738,
774739

Auxiliary contacts (N/C): 1

: 0.01 A , I

min

P

: 2000 VA

max

: 0.01 A , I

min

P

: 200 W

max

: 0.01 A , I

min

: 2000 VA

P

max

: 0.01 A , I

min

P

: 200 W

max

: 5.0 A

max

: 7.0 A

max

: 5.0 A

max

: 7.0 A

max

max

max

max

max

: 8.0 A

: 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-2-128-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-6

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

Electrical data

External contact fuse protection 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
Max. overall cable resistance R
single-channel at U
single-channel at U

dual-channel without detect. of shorts across contacts at U
dual-channel without detect. of shorts across contacts 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. 210 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with automatic reset max. 350 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with automatic reset after power on typ. 240 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with automatic reset after power on max. 390 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with manual reset typ. 55 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with manual reset max. 350 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with monitored reset typ. 30 ms Order no.: 774731, 774734, 774735, 774736, 774738,

with monitored reset max. 50 ms Order no.: 774731, 774734, 774735, 774736, 774738,

Delay-on de-energisation
with E-STOP typ. 15 ms
with E-STOP max. 30 ms
with power failure typ. 50 ms Order no.: 774730

with power failure max. 70 ms Order no.: 774730

Recovery time at max. switching frequency 1/s
after E-STOP 50 ms
after power failure 100 ms

DC 20 Ohm Order no.: 774730

B

AC 150 Ohm Order no.: 774731, 774734, 774735, 774736, 774738,

B

input circuits, reset circuits

lmax

774739

DC 20 Ohm Order no.: 774730

B

AC 150 Ohm Order no.: 774731, 774734, 774735, 774736, 774738,

B

774739

DC 15 Ohm Order no.: 774730

B

AC 100 Ohm Order no.: 774731, 774734, 774735, 774736, 774738,

B

774739

774739
270 ms Order no.: 774730

774739
600 ms Order no.: 774730

774739
270 ms Order no.: 774730

774739
600 ms Order no.: 774730

774739
70 ms Order no.: 774730

774739
600 ms Order no.: 774730

774739
40 ms Order no.: 774730

774739

70 ms Order no.: 774730

55 ms Order no.: 774731, 774734, 774735, 774736, 774738,

774739

80 ms Order no.: 774731, 774734, 774735, 774736, 774738,
774739

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

NSG-D-2-128-01/05

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

Times

Waiting period with a monitored reset 150 ms Order no.: 774731, 774734, 774735, 774736, 774738,

774739
250 ms Order no.: 774730

Min. start pulse duration with a monitored reset 30 ms
Simultaneity, channel 1 and 2 ∞
Supply interruption before de-energisation 20 ms

Environmental data

EMC EN 60947-5-1, EN 61000-6-2
Vibration in accordance with EN 60068-2-6
Frequency 10 - 55 Hz
Amplitude 0.35 mm
Climatic suitability EN 60068-2-78
Airgap creepage VDE 0110-1
Ambient temperature -10 - 55 °C
Storage temperature -40 - 85 °C
Protection type
Mounting (e.g. control cabinet) IP54
Housing IP40
Terminals IP20

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 270 g Order no.: 774730

370 g Order no.: 774731, 774734, 774735, 774736, 774738,
774739

The standards current on 09/00 apply.

Max. continuous current

Number of contacts I
1 8.00 A Order no.: 774730, 774732 8.00 A Order no.: 774731, 774734, 774735, 774736,

2 8.00 A Order no.: 774730, 774732 7.50 A Order no.: 774731, 774734, 774735, 774736,

3 7.00 A Order no.: 774730, 774732 6.50 A Order no.: 774731, 774734, 774735, 774736,

Order reference

Type Features Terminals Order no.

PNOZ X4 24 VAC Screw terminals 774 731
PNOZ X4 110 VAC Screw terminals 774 734
PNOZ X4 115 VAC Screw terminals 774 735

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

(A) at UBDC I

max

(A) at UBAC

max

774738, 774739

774738, 774739

774738, 774739

NSG-D-2-128-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-8

NOT-AUS Schaltgerät, Schutztürwächter

Up to Category 4, EN 954-1

PNOZ X4

Type Features Terminals Order no.

PNOZ X4 120 VAC Screw terminals 774 736
PNOZ X4 230 VAC Screw terminals 774 738
PNOZ X4 240 VAC Screw terminals 774 739
PNOZ X4 24 VDC Screw terminals 774 730

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

NSG-D-2-128-01/05