Pilz PNOZ XV3P Data Sheet

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ XV3P

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

Approvals

PNOZ XV3P







Unit features

` 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
– Light barriers

` Delay-on de-energisation, fixed or

selectable

` 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

cage clamp terminal or screw termi­nal)

` 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

The max. category the safety contacts
can achieve in accordance with EN
954-1 is stated in the technical details.

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 unit has an electronic fuse.

Block diagram

A1 A2

=

Power

=

S11 S12

Reset/

Start

S13 S14

S21 S22

InputInput

Reset/

Start

S33 S34

S31 S32

Input

Reset

t

Y39 Y40

K3

K1

K4

K2

13 23 33

14 24 34

47 57

48 58

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

NSG-D-2-313-12/04

E-STOP relays, safety gate monitors

Up to Category 4, EN 954-1

PNOZ XV3P

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

Timing diagram

POWER

Reset/Start

Reset t

v

Input

Output safe

Output safe del

and, with a monitored reset, in
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.

1 2

t4

t1 t2

t1

t3 t2

t3

t1

` Automatic start: Unit is active once

the input circuit has been 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.

t2

t3 t4 t3

t2t1

Key

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

S33-S34

` Reset t

: Y39-Y40

v

` 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 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

lmax

=

I

max

Rl / km

= max. overall cable resi-

R

lmax

stance (see technical details)

` Output safe: Safety contacts, in-

stantaneous 13-14, 23-24, 33-34

` Output safe del: Safety contacts,

delayed 47-48, 57-58

` c: Automatic reset
` d: Monitored reset

/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.

: Switch-on delay

` t

1

: Delay-on de-energisation

` t

2

: Delay time

` t

3

` t4: Waiting period

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

NSG-D-2-313-12/04Pilz 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 XV3P

Preparing for operation

` Supply voltage

Supply voltage AC DC

` Input circuit

Input circuit Single-channel Dual-channel
E-STOP

without detection of shorts across
contacts

S21
S22

S12
S11
S32

S31

S1

S21
S22

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

S21
S22

S11

S12
S32

A1

A2

S11

S12
S32

S22
S32
S31
S21

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
S12

S22
S21
S32

S31

S12
S32

S1

NSG-D-2-313-12/04

S2

24 V DC