Pilz PNOZ X6 Data Sheet

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

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

Approvals

PNOZ X6





Unit features

` Positive-guided relay outputs:

– 3 safety contacts (N/O), instanta-

neous

` Connection options for:

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

` LED indicator for:

– Switch status channel 1/2
– Supply voltage

` Suitable to be driven via a semicon-

ductor output

` See order reference for unit types
` Simultaneity monitoring, selectable

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

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



The relay conforms to the following
safety criteria:

A1 A2 S23 S24

~

S11 S12

InputInput

=

Power

Power

Reset/

Start

Y1 Y2

UB AC

Reset/

Start

Y3 Y4

13 23 33

K1

K2

K3

14 24 34

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

NSG-D-2-047-01/05

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

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

Timing diagram

1 2

POWER

Reset/Start

Input

Output safe

t1 t2

t1 t2

Key

` Power: Supply voltage
` Reset/start: Reset circuit Y1-Y2,

Y3-Y4

` Input: Input circuits S11-S12, S23-

S24

` Output safe: Safety contacts 13-14,

23-24, 33-34

circuit,

– short circuits in the input circuit

and, with a monitored reset, in
the reset circuit too.

` Automatic start: Unit is active once

the input circuit has been closed.

` Manual reset: Unit is active once

the input circuit is closed and then
the reset circuit is closed.

` M on it or ed re se t: Un i t i s ac ti ve on c e

ab

t1

t1

t2

t2

` c: Automatic reset
` d: Manual reset
` e: Monitored reset
` a: Input circuit closes before reset

circuit

` b: Reset circuit closes before input

circuit

– 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

: Switch-on delay

` t

1

: Delay-on de-energisation

` t

2

3

t2

t2

t1

Wiring

Please note:

` Information given in the “Technical

details” must be followed.

` Outputs 13-14, 23-24, 33-34 are

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

lmax

=

I

max

Rl / km

= max. overall cable resi-

R

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.

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

NSG-D-2-047-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-2

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

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

S11
S12
S24

S1

Safety gate
without detection of shorts across
contacts

S11
S12
S24

S1

` Reset circuit

S11
S12
S24
S23

A1

A2

S11
S23
S24

S12

S1

L+

L-

S1

S2

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

Y1

Manual reset

Monitored reset

Y2

S3

Y1

Y2

S3
Y1
Y2

Y3

Y1
Y2

S2S1

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

NSG-D-2-047-01/05

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

` Simultaneity monitoring

Simultaneity Simultaneity max. 200 ms Simultaneity ∞

Y3

Y4

` Feedback loop

Feedback loop Automatic reset Manual reset
Contacts from external contactors

Y1
Y2

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

K5

K6

K5

K6

L1
N

` Key

S1/S2 Two-hand button

S3 Reset button

Switch operated

Gate open

Gate closed

Y1

Y2
13 (23, 33)
14 (24 ,34)

K5

Y3

Y4

K6

K5

K6

S3

L1
N

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

NSG-D-2-047-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-4

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

Terminal configuration

A1 S11 S12 13 23 33

S23A2S24 Y1Y2Y214Y324Y4

19586

PNOZ X6

POWER
CH. 1
CH. 2

2313 33

2414 34

34

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-2-047-01/05

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

Notice

Service life graph

This data sheet is only intended for use
during configuration. For installation
and operation, please refer to the ope-

10

AC1: 230 V

rating instructions supplied with the
unit.

DC13: 24 V

1

D Nennbetriebstrom (A)

GB Nominal operating current (A)

F Courant coupé (A)

Technical details

Electrical data

Supply voltage UB AC
Supply voltage U

B

DC

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

Power consumption at U

B

B

AC

DC

Frequency range AC 50 – 60 Hz
Residual ripple DC 160 %
Voltage and current at
input circuit: 24 VDC
reset circuit: 24 VDC

feedback loop: 24 VDC

Output contacts in accordance with EN 954-1, Category 3 Safety contacts (N/O): 3
Utilisation category in accordance with EN 60947-4-1
AC1: 240 V

AC1: 400 V

DC1: 24 V

Utilisation category in accordance with EN 60947-5-1
AC15: 230 V
DC13 (6 cycles/min): 24 V

Contact material AgSnO
External contact fuse protection (EN 60947-5-1)
Blow-out fuse, quick

Blow-out fuse, slow
Circuit breaker
Max. overall cable resistance R
reset circuits

input circuits,

lmax

Single-channel
Dual-channel without detection of shorts across contacts

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

24 V, 42 V, 110 - 120 V, 230 - 240 V
24 V

6.5 VA Order no.: 774721, 774725, 774726

3.0 VA Order no.: 774729

2.0 W Order no.: 774729

50.0 mA

100.0 mA Order no.: 774721, 774725, 774726

55.0 mA Order no.: 774729

100.0 mA Order no.: 774721, 774725, 774726

55.0 mA Order no.: 774729

I

: 0.01 A, I

min

P

: 2000 VA

max

I

: 0.01 A, I

min

P

: 2000 VA

max

I

: 0.01 A, I

min

P

: 200 W

max

: 5.0 A

I

max

I

: 7.0 A

max

10 A
6 A
6 A, 24 VAC/DC, characteristic B/C

100 Ohm
200 Ohm

3

3

: 8.00 A

max

: 5.00 A

max

: 8.0 A

max

+ 0.2 µm Au

2

DC1: 24 V

AC1: 400 V

AC15: 230 V

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

3

NL Aantal schakelingen x 10

3

3

3

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

NSG-D-2-047-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-6

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

Times

Switch-on delay
with automatic reset typ.

with automatic reset max.

with automatic reset after power on typ.
with automatic reset after power on max.
Delay-on de-energisation
with E-STOP typ.
with E-STOP max.
with power failure typ.

with power failure max.

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

Min. start pulse duration with a monitored reset 30 ms
Simultaneity, channel 1 and 2 200 ms / ∞
Supply interruption before de-energisation 20 ms

Environmental data

EMC EN 61000-6-2, EN 60947-5-1
Vibration in accordance with EN 60068-2-6

Frequency
Amplitude

Climatic suitability EN 600068-2-78
Airgap creepage EN 60947-1
Ambient temperature -10 – 55 °C
Storage temperature -40 – 85 °C
Protection type
Mounting (e.g. cabinet)

Housing
Terminals

Mechanical data

Housing material
Housing
Front

Max. cross section of external conductors with screw terminals
1 core flexible
2 core, same cross section, flexible:
with crimp connectors, without insulating sleeve
without crimp connectors or with TWIN crimp connectors
Torque setting with screw terminals 0.60 Nm

Dimensions (H x W x D)
with screw terminals 87.0 mm x 45.0 mm x 121.0 mm

Weight 390 g Order no.: 774721, 774725, 774726

270 ms Order no.: 774721, 774725, 774726
250 ms Order no.: 774729
370 ms Order no.: 774721, 774725, 774726
350 ms Order no.: 774729
260 ms
350 ms

15 ms
30 ms
150 ms Order no.: 774721, 774725, 774726
110 ms Order no.: 774729
200 ms Order no.: 774721, 774725, 774726
160 ms Order no.: 774729

50 ms
250 ms Order no.: 774721, 774725, 774726
200 ms Order no.: 774729

10 - 55 Hz

0.35 mm

IP54
IP40
IP20

PPO UL 94 V0
ABS UL 94 V0

0.20 - 4.00 mm

0.20 - 2.50 mm

0.20 - 2.50 mm

295 g Order no.: 774729

2

2
2

The standards current on 09/04 apply.

Max. continuous current

Number of contacts I
1 8.00 A Order no.: 774 729 8.00 A
2 8.00 A Order no.: 774 729 7.30 A
3 8.00 A Order no.: 774 729 6.00 A

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

(A) at UBDC I

max

(A) at UBAC

max

NSG-D-2-047-01/05

E-STOP relays, safety gate monitors

Up to Category 3, EN 954-1

PNOZ X6

Order reference

Type Features Terminals Order no.

PNOZ X6 42 VAC Screw terminals 774 721
PNOZ X6 110 - 120 VAC Screw terminals 774 725
PNOZ X6 230 - 240 VAC Screw terminals 774 726
PNOZ X6 24 VAC/DC Screw terminals 774 729

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

NSG-D-2-047-01/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-8