Pilz PNOZ 16 Data Sheet

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

Safety relay for monitoring emergency
stop pushbuttons, safety gates, safety
mats and safe edges

Approvals

PNOZ 16







Unit features

` Positive-guided relay outputs:

– 2 safety contacts (N/O), instanta-

neous

` Connection options for:

– E-STOP pushbutton
– Safety gate limit switch
– Reset button
– Safe edges
– Safety mats

` LED indicator for:

– Switch status channel 1/2
– Supply voltage
– Detection of shorts across con-

tacts on safety mat "EXT.
FAULT"

` See order reference for unit types

Unit description

The safety relay meets the require­ments of EN 60204-1, IEC 60204-1
and EN 1760-1 and may be used in
applications with

` E-STOP pushbuttons
` Safety gates
` Safety mats
` Safe edges

The safety relay is not suitable for non­contact barriers because

` a dynamic start is not possible
` the unit can be started during the

delay-on de-energisation time.

Safety features

The relay conforms to the following
safety criteria:

` 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

B1 B2 13 23

=

Power

S11 S12 S21 S22

InputInput

Feed-

back

S31 S32

Input

S33 S34

Reset/

Start

K1

K2

~

A1 A2

Y1 Y2

14 24

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

NSG-D-2-060-02/05

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

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 with detec-

tion of shorts across contacts: red­undant input circuit, detects
– earth faults in the reset and input

circuit,

Timing diagram

POWER

Reset/Start

Input

Output safe

FAULT

t1 t2

t1 t2

– short circuits and shorts bet-

ween contacts in the input cir­cuit.

` When the safety mat is actuated, a

short is formed between the inputs
and internal fault detection is ener­gised. The safety contacts open
and the LED EXT.FAULT is lit. If the
safety mat is cleared and supply
voltage is maintained, the unit is

1

t

1

t2 t3

ready for operation again once the
recovery time has elapsed.

` 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.

` Increase in the number of available

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

ab

t1

2

t1

t2

t2

t1

t2

Key

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

S22, S31-S32

` Output safe: Safety contacts 13-14,

23-24

Wiring

Please note:

` Information given in the “Technical

details” must be followed.

` Outputs 13-14, 23-24 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

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.

` FAULT: Short between contacts in

the input circuit due to actuation of
safety mat

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

circuit

` 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

` t3: Recovery time after short across

contacts

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

NSG-D-2-060-02/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-2

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

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

S21
S22

S12
S11
S32

S31

S1

E-STOP
with detection of shorts across con­tacts

S11
S12

Safety gate
without detection of shorts across
contacts

S21
S22

S12
S11
S32

S31

S1

B1

B2

S22
S32
S31
S21

L+

L-

S1

Safety gate
with detection of shorts across con­tacts

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

S11
S12

S22
S21
S32

S31

S1

S22
S21
S32

S31

NSG-D-2-060-02/05

S2

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

` Reset circuit

Reset circuit E-STOP wiring (single-channel)

Safety gate (single-channel)

Automatic reset

S33

S34

Manual reset

S33

S34

S3

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

` Feedback loop

Feedback loop Automatic reset Manual reset
Contacts from external contactors

Y1
Y2

13 (23)
14 (24)

K5

K6

K5

K6

L1
N

` Key

S33

S34

Y1
Y2

13 (23)
14 (24)

S33

S34

K5

K6

K5

K6

S3

S3

L1
N

S1/S2

E-STOP pushbutton/ safety
gate switch

S3 Reset button

Switch operated

Gate open

Gate closed

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

NSG-D-2-060-02/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-4

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

Terminal configuration

S11

S12

S31

S22S21S32

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

B1

PNOZ 16

POWER
CH. 1
CH. 2

EXT.FAULT

S33 S34 14

19945

Y1

Y2 13

121 (4.76")

13

14

23

23

24

A224 B2

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-2-060-02/05

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

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 3.5 VA

B

DC 2.0 W

B

Frequency range AC 50 - 60 Hz
Residual ripple DC 20 %
Voltage and current at
input circuit DC: 24.0 V 25.0 mA
reset circuit DC: 24.0 V 25.0 mA
feedback loop DC: 24.0 V 25.0 mA
Output contacts in accordance with EN 954-1 Category 4 Safety contacts (N/O): 2
Utilisation category in accordance with EN 60947-4-1
Safety contacts: AC1 at 240 V I

Safety 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
Contact material AgSnO2 + 0.2 µm Au
External contact fuse protection to EN 60947-5-1
Blow-out fuse, quick
Safety contacts: 10 A
Blow-out fuse, slow
Safety contacts: 6 A
Circuit breaker 24 VAC/DC, characteristic B/C
Safety contacts: 6 A
Safety mat resistance + overall cable resistance 80 Ohm
Max. overall cable resistance R
single-channel at U
single-channel at U

DC 40 Ohm

B

AC 40 Ohm

B

input circuits, reset circuits

lmax

dual-channel with detect. of shorts across contacts at U
dual-channel with detect. of shorts across contacts at U

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

: 2000 VA

P

max

: 0.01 A , I

min

P

: 200 W

max

: 5.0 A

max

: 6.0 A

max

DC 80 Ohm

B

AC 80 Ohm

B

3

3

: 8.00 A

max

: 8.0 A

max

DC1: 24 V

AC1: 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-2-060-02/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-6

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

Times

Switch-on delay
with automatic reset typ. 230 ms
with automatic reset max. 350 ms
with automatic reset after power on typ. 310 ms
with automatic reset after power on max. 450 ms
with manual reset typ. 230 ms
with manual reset max. 350 ms
Delay-on de-energisation
with E-STOP typ. 18 ms
with E-STOP max. 30 ms
with power failure typ. 50 ms
with power failure max. 80 ms
Recovery time at max. switching frequency 1/s
after E-STOP 50 ms
after power failure 100 ms
Recovery time after short across contacts
at U

DC - Tol.

B

at U

DC nom.

B

at U

DC + Tol.

B

at U

AC - Tol.

B

at U

AC nom.

B

at U

AC + Tol.

B

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 350 g

650 ms
400 ms
320 ms
400 ms
300 ms
280 ms

The standards current on 02/03 apply.

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

NSG-D-2-060-02/05

E-STOP relay, safety gate monitor

Up to Category 4, EN 954-1

PNOZ 16

Order reference

Type Features Terminals Order no.

PNOZ 16 24 VAC/DC Screw terminals 774 060
PNOZ 16 42 VAC 24 VDC Screw terminals 774 061
PNOZ 16 48 VAC 24 VDC Screw terminals 774 062
PNOZ 16 110 VAC 24 VDC Screw terminals 774 063
PNOZ 16 115 VAC 24 VDC Screw terminals 774 064
PNOZ 16 120 VAC 24 VDC Screw terminals 774 065
PNOZ 16 230 VAC 24 VDC Screw terminals 774 066
PNOZ 16 240 VAC 24 VDC Screw terminals 774 067

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

NSG-D-2-060-02/05Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany

-8