Pilz PNOZ 16SP User manual

PNOZ 16SP
Operating Manual-19900-EN-05
}Safety relays

Preface
This document is the original document.
All rights to this documentation are reserved by Pilz GmbH & Co. KG. Copies may be made
for the user's internal purposes. Suggestions and comments for improving this documenta-
tion will be gratefully received.
Source code from third-party manufacturers or open source software has been used for
some components. The relevant licence information is available on the Internet on the Pilz
homepage.
Pilz®, PIT®, PMI®, PNOZ®, Primo®, PSEN®, PSS®, PVIS®, SafetyBUS p®,
SafetyEYE®, SafetyNET p®, the spirit of safety® are registered and protected trademarks
of Pilz GmbH & Co. KG in some countries.
SD means Secure Digital

Contents
Operating Manual PNOZ 16SP
19900-EN-05 3
Introduction 5
Validity of documentation 5
Using the documentation 5
Definition of symbols 5
Safety 6
Intended use 6
Safety regulations 6
Safety assessment 6
Use of qualified personnel 7
Warranty and liability 7
Disposal 7
For your safety 7
Unit features 8
Safety features 8
Block diagram/terminal configuration 9
Function Description 9
Operating modes 9
Timing diagram 10
Installation 11
Wiring 11
Preparing for operation 12
Operation 14
Status indicators 14
Faults – Interference 15
Dimensions in mm 15
Technical details 16
Safety characteristic data 25
Supplementary data 26
Service life graph 26

Contents
Operating Manual PNOZ 16SP
19900-EN-05 4
Remove plug-in terminals 27
Order reference 27
EC declaration of conformity 27

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 5
Introduction
Validity of documentation
This documentation is valid for the product PNOZ 16SP. It is valid until new documentation
is published.
This operating manual explains the function and operation, describes the installation and
provides guidelines on how to connect the product.
Using the documentation
This document is intended for instruction. Only install and commission the product if you
have read and understood this document. The document should be retained for future ref-
erence.
Definition of symbols
Information that is particularly important is identified as follows:
DANGER!
This warning must be heeded! It warns of a hazardous situation that poses
an immediate threat of serious injury and death and indicates preventive
measures that can be taken.
WARNING!
This warning must be heeded! It warns of a hazardous situation that could
lead to serious injury and death and indicates preventive measures that can
be taken.
CAUTION!
This refers to a hazard that can lead to a less serious or minor injury plus
material damage, and also provides information on preventive measures
that can be taken.
NOTICE
This describes a situation in which the product or devices could be dam-
aged and also provides information on preventive measures that can be
taken. It also highlights areas within the text that are of particular import-
ance.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 6
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The safety relay PNOZ 16SP provides a safety-related interruption of a safety circuit.
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
}Pressure sensitive mats
}Safe edges
The following is deemed improper use in particular
}Any component, technical or electrical modification to the product,
}Use of the product outside the areas described in this manual,
}Use of the product outside the technical details (see Technical details [ 16]).
NOTICE
EMC-compliant electrical installation
The product is designed for use in an industrial environment. The product
may cause interference if installed in other environments. If installed in other
environments, measures should be taken to comply with the applicable
standards and directives for the respective installation site with regard to in-
terference.
Safety regulations
Safety assessment
Before using a device it is necessary to perform a safety assessment in accordance with
the Machinery Directive.
Functional safety is guaranteed for the product as a single component. However, this does
not guarantee the functional safety of the overall plant/machine. In order to achieve the re-
quired safety level for the overall plant/machine, define the safety requirements for the
plant/machine and then define how these must be implemented from a technical and organ-
isational standpoint.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 7
Use of qualified personnel
The products may only be assembled, installed, programmed, commissioned, operated,
maintained and decommissioned by competent persons.
A competent person is a qualified and knowledgeable person who, because of their train-
ing, experience and current professional activity, has the specialist knowledge required. To
be able to inspect, assess and operate devices, systems and machines, the person has to
be informed of the state of the art and the applicable national, European and international
laws, directives and standards.
It is the company’s responsibility only to employ personnel who
}Are familiar with the basic regulations concerning health and safety / accident preven-
tion,
}Have read and understood the information provided in the section entitled Safety
}Have a good knowledge of the generic and specialist standards applicable to the spe-
cific application.
Warranty and liability
All claims to warranty and liability will be rendered invalid if
}The product was used contrary to the purpose for which it is intended,
}Damage can be attributed to not having followed the guidelines in the manual,
}Operating personnel are not suitably qualified,
}Any type of modification has been made (e.g. exchanging components on the PCB
boards, soldering work etc.).
Disposal
}In safety-related applications, please comply with the mission time TM in the safety-re-
lated characteristic data.
}When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).
For your safety
The unit meets all the necessary conditions for safe operation. However, please note the
following:
}Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120
VDC) are present on the unit, connected control elements and sensors must have a
rated insulation voltage of at least 250 V.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 8
Unit features
}Positive-guided relay outputs:
– 2 safety contacts (N/O), instantaneous
}2 semiconductor outputs
}Connection options for:
– E-STOP pushbuttons
– Safety gate limit switches
– Start button
– Pressure sensitive edges
– Pressure sensitive mats
}LED indicator for:
– Supply voltage
– Switch state of the safety contacts
– Detection of shorts across contacts, pressure sensitive mat
}Semiconductor outputs signal:
– Supply voltage is present, no short across contacts
– Switch state of the safety contacts
}See order reference for unit types
Safety features
The safety relay meets the following safety requirements:
}The circuit is redundant with built-in self-monitoring.
}The safety function remains effective 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.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 9
Block diagram/terminal configuration
*Insulation between the non-marked area and the relay contacts: Basic insulation (over-
voltage category III), Protective separation (overvoltage category II)
Function Description
The safety relay PNOZ 16P provides a safety-oriented interruption of a safety circuit. When
supply voltage is supplied the "POWER" LED is lit. The unit is ready for operation when the
feedback loop Y1-Y2 and the start circuit S33-S34 are closed.
}Input circuit is closed (e.g. E-STOP pushbutton not operated):
– The LEDs "CH.1" and "CH.2" are lit.
– Safety contacts 13-14 and 23-24 are closed. The unit is active.
– A high signal is present at the semiconductor output switch state Y32.
}Input circuit is opened (e.g. E-STOP pushbutton operated):
– The LEDs "CH.1" and "CH.2" go out.
– Safety contacts 13-14 and 23-24 are redundantly opened.
– A low signal is present at the semiconductor output switch state Y32.
Semiconductor output short across contact Y35
}A high signal is present at semi-conductor output Y35 if the supply voltage is present
and the internal fuse has not blown.
Operating modes
}Single-channel operation: No redundancy in the input circuit, earth faults in the start
and input circuit are detected.
}Dual-channel operation with detection of shorts across contacts: Redundant input cir-
cuit, PNOZ 16SP detects
– earth faults in the start and input circuit,
– short circuits in the input circuit,
– shorts across contacts in the input circuit.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 10
}Automatic start: Unit is active once the input circuit has been closed.
}Manual start: Unit is active once the input circuit and the start circuit are closed.
}Operating with pressure sensitive mat: When the pressure sensitive mat is actuated, a
short is formed between the inputs and internal fault detection is energised. Safety con-
tacts open and the "EXT.FAULT" LED is lit. If the pressure sensitive mat is cleared and
supply voltage is maintained, the unit is ready for operation again once the recovery
time has elapsed.
}Increase in the number of available contacts by connecting contact expander modules
or external contactors/relays.
Timing diagram
[1] [2]
Legend
}Power: Supply voltage
}Start: Start circuit
}Input: Input circuit
}Output safe: Safety contacts
}Semi FAULT: Semiconductor output short across contact
}Semi OUT: Semiconductor output switch state
}FAULT: Short across contacts in the input circuit due to actuation of pressure sensitive
mat
}[1]: Automatic start
}[2]: Manual start
}a: Input circuit closes before start circuit
}b: Start circuit closes before input circuit
}t1: Switch-on delay
}t2: Delay-on de-energisation
}t3: Recovery time after short across contacts

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 11
Installation
}The unit 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 (35 mm).
}When installed vertically: Secure the unit by using a fixing element (e.g. retaining
bracket or end angle).
Wiring
Please note:
}Information given in the "Technical details [ 16]" must be followed.
}The outputs 13-14, 23-24 are safety contacts.
}Do not connect undesignated terminals.
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 16]).
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 16])
Rl/km = cable resistance/km
}Use copper wire that can withstand 60/75°C.
}Do not switch low currents using contacts that have been used previously with high cur-
rents.
}Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
}With a 24 VDC supply voltage via terminals B1, B2, the power supply must comply with
the regulations for extra low voltages with safe electrical separation (SELV, PELV) in
accordance with VDE 0100, Part 410.
}Ensure the wiring and EMC requirements of EN 60204-1 are met.
Important for detection of shorts across contacts:
As this function for detecting shorts across contacts is not failsafe, it is tested by Pilz during
the final control check. If there is a danger of exceeding the cable length, we recommend
the following test once the unit is installed:
1. Unit ready for operation (output contacts closed)
2. Short circuit the test terminals S22, S32 for detecting shorts across the inputs.
3. The unit‘s fuse must be triggered and the output contacts must open. Cable lengths in
the scale of the maximum length can delay the fuse triggering for up to 2 minutes.
4. Reset the fuse: Remove the short circuit and switch off the supply voltage for approx. 1
minute.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 12
Preparing for operation
Supply voltage AC DC
FE
B1
B2
L+
L-
Input circuit Single-channel Dual-channel
E-STOP
without detection of shorts across
contacts
S1
S22
S21
S12
S32
S11
S31
E-STOP
with detection of shorts across
contacts
S1
S22
S31
S32
S21
S12
S11
Safety gate
without detection of shorts across
contacts
S1
S22
S21
S12
S32
S11
S31
Safety gate
with detection of shorts across
contacts
Short circuit-forming pressure
sensitive mat/edge
S12
S11
S22
S32
S21
S31

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 13
NOTICE
With single-channel wiring the safety level of your machine/plant may be
lower than the safety level of the unit (see Safety characteristic
data [ 25]).
NOTICE
The overall system PNOZ 16SP and the short circuit-forming pressure
sensitive mat or edge has to be assessed in accordance with the product
standard EN ISO 13856-1 and/or EN ISO 13856-2.
Start circuit Automatic start Manual start
S33
S34
S3
NOTICE
In the event of an automatic start or manual start with bridged start
contact (fault):
The unit starts up automatically when the safeguard is reset, e.g. when the
E-STOP pushbutton is released. Use external circuit measures to prevent
an unexpected restart.
Feedback loop
without feedback loop monitor-
ing with feedback loop monitoring
Link or contacts from external
contactors
Semiconductor output
Legend
}S1/S2: E-STOP/safety gate switch
}S3: Reset button

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 14
}: Switch operated
}: Gate open
}: Gate closed
Operation
When the relay outputs are switched on, the mechanical contact on the relay cannot be
tested automatically. Depending on the operational environment, measures to detect the
non-opening of switching elements may be required under some circumstances.
When the product is used in accordance with the European Machinery Directive, a check
must be carried out to ensure that the safety contacts on the relay outputs open correctly.
Open the safety contacts (switch off output) and start the device again, so that the internal
diagnostics can check that the safety contacts open correctly
}for SIL CL 3/PL e at least 1x per month
}for SIL CL 2/PL d at least 1x per year
NOTICE
The safety function should be checked after initial commissioning and each
time the plant/machine is changed. The safety functions may only be
checked by qualified personnel.
Status indicators
LEDs indicate the status and errors during operation:
LED on
POWER
Supply voltage is present.
CH.1
Safety contacts of channel 1 are closed.
CH.2
Safety contacts of channel 2 are closed.
EXT. FAULT
Short across contacts when operating with pressure sensitive mat.

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 15
Faults – Interference
}Earth fault: The supply voltage fails and the safety contacts open. Once the cause of
the respective fault has been rectified and the supply voltage is switched off for approx.
1minute, the unit is ready for operation again.
}Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.
}LED "POWER" does not light: Short circuit or no supply voltage.
Dimensions in mm
* with spring-loaded terminals

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 16
Technical details
Order no. 777070 – 777075
See below for more order numbers
General 777070 777073 777075
Approvals
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
Electrical data 777070 777073 777075
Supply voltage
Voltage 24 V 110 V 120 V
Kind AC AC AC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (AC) 3,5 VA 3,5 VA 3,5 VA
Frequency range AC 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Supply voltage
Voltage 24 V 24 V 24 V
Kind DC DC DC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (DC) 2 W 2 W 2 W
Residual ripple DC 20 % 20 % 20 %
Duty cycle 100 % 100 % 100 %
Inputs 777070 777073 777075
Number 2 2 2
Voltage at
Input circuit DC 24 V 24 V 24 V
Start circuit DC 24 V 24 V 24 V
Feedback loop DC 24 V 24 V 24 V
Current at
Input circuit DC 25 mA 25 mA 25 mA
Start circuit DC 25 mA 25 mA 25 mA
Feedback loop DC 25 mA 25 mA 25 mA
Max. overall cable resist-
ance Rlmax
Single-channel at UB
DC 40 Ohm 40 Ohm 40 Ohm
Single-channel at UB
AC 40 Ohm 40 Ohm 40 Ohm
Dual-channel with de-
tection of shorts across
contacts at UB DC 80 Ohm 80 Ohm 80 Ohm
Dual-channel with de-
tection of shorts across
contacts at UB AC 80 Ohm 80 Ohm 80 Ohm
Max. safety mat resist-
ance 80 Ohm 80 Ohm 80 Ohm

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 17
Semiconductor outputs 777070 777073 777075
Number 2 2 2
Voltage 24 V 24 V 24 V
Current 20 mA 20 mA 20 mA
External supply voltage 24 V 24 V 24 V
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Relay outputs 777070 777073 777075
Number of output con-
tacts
Safety contacts (N/O),
instantaneous 2 2 2
Max. short circuit current
IK 1 kA 1 kA 1 kA
Utilisation category
In accordance with the
standard EN 60947-4-1 EN 60947-4-1 EN 60947-4-1
Utilisation category of
safety contacts
AC1 at 240 V 240 V 240 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 8 A 8 A 8 A
Max. power 2000 VA 2000 VA 2000 VA
DC1 at 24 V 24 V 24 V
Min. current 0,01 A 0,01 A 0,01 A
Max. current 8 A 8 A 8 A
Max. power 200 W 200 W 200 W
Utilisation category
In accordance with the
standard EN 60947-5-1 EN 60947-5-1 EN 60947-5-1
Utilisation category of
safety contacts
AC15 at 230 V 230 V 230 V
Max. current 5 A 5 A 5 A
DC13 (6 cycles/min) at 24 V 24 V 24 V
Max. current 6 A 6 A 6 A
Utilisation category in ac-
cordance with UL
Voltage 240 V AC G. P. 240 V AC G. P. 240 V AC G. P.
With current 8 A 8 A 8 A
Pilot Duty C300, R300 C300, R300 C300, R300

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 18
Relay outputs 777070 777073 777075
External contact fuse pro-
tection, safety contacts
In accordance with the
standard EN 60947-5-1 EN 60947-5-1 EN 60947-5-1
Max. melting integral 240 A²s 240 A²s 240 A²s
Blow-out fuse, quick 10 A 10 A 10 A
Blow-out fuse, slow 6 A 6 A 6 A
Blow-out fuse, gG 10 A 10 A 10 A
Circuit breaker 24V
AC/DC, characteristic
B/C 6 A 6 A 6 A
Contact material AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au AgSnO2 + 0,2 µm Au
Conventional thermal
current while loading
several contacts
777070 777073 777075
Ith per contact at UB AC;
AC1:240V,DC1:24V
Conv. therm. current
with 1 contact 8 A 8 A 8 A
Conv. therm. current
with 2 contacts 6 A 6 A 6 A
Ith per contact at UB DC;
AC1:240V,DC1:24V
Conv. therm. current
with 1 contact 8 A 8 A 8 A
Conv. therm. current
with 2 contacts 6 A 6 A 6 A
Times 777070 777073 777075
Switch-on delay
With automatic start
typ. 230 ms 230 ms 230 ms
With automatic start
max. 350 ms 350 ms 350 ms
With automatic start
after power on typ. 310 ms 310 ms 310 ms
With automatic start
after power on max. 450 ms 450 ms 450 ms
With manual start typ. 230 ms 230 ms 230 ms
With manual start max. 350 ms 350 ms 350 ms
Delay-on de-energisation
With E-STOP typ. 18 ms 18 ms 18 ms
With E-STOP max. 30 ms 30 ms 30 ms
With power failure typ. 50 ms 50 ms 50 ms
With power failure max. 100 ms 100 ms 100 ms
Recovery time at max.
switching frequency 1/s
After E-STOP 50 ms 50 ms 50 ms
After power failure 100 ms 100 ms 100 ms

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 19
Times 777070 777073 777075
Supply interruption before
de-energisation 20 ms 20 ms 20 ms
Simultaneity, channel 1
and 2 max. ∞ ∞ ∞
Environmental data 777070 777073 777075
Climatic suitability EN 60068-2-78 EN 60068-2-78 EN 60068-2-78
Ambient temperature
Temperature range -10 - 55 °C -10 - 55 °C -10 - 55 °C
Storage temperature
Temperature range -40 - 85 °C -40 - 85 °C -40 - 85 °C
Climatic suitability
Humidity 93 % r. h. at 40 °C 93 % r. h. at 40 °C 93 % r. h. at 40 °C
Condensation during op-
eration Not permitted Not permitted Not permitted
EMC EN 60947-5-1, EN
61000-6-2, EN 61326-3-1
EN 60947-5-1, EN
61000-6-2, EN 61326-3-1
EN 60947-5-1, EN
61000-6-2, EN 61326-3-1
Vibration
In accordance with the
standard EN 60068-2-6 EN 60068-2-6 EN 60068-2-6
Frequency 10 - 55 Hz 10 - 55 Hz 10 - 55 Hz
Amplitude 0,35 mm 0,35 mm 0,35 mm
Airgap creepage
In accordance with the
standard EN 60947-1 EN 60947-1 EN 60947-1
Overvoltage category III / II III / II III / II
Pollution degree 2 2 2
Rated insulation voltage 250 V 250 V 250 V
Rated impulse withstand
voltage 4 kV 4 kV 4 kV
Protection type
Housing IP40 IP40 IP40
Terminals IP20 IP20 IP20
Mounting area (e.g.
control cabinet) IP54 IP54 IP54
Mechanical data 777070 777073 777075
Mounting position Any Any Any
Mechanical life 10,000,000 cycles 10,000,000 cycles 10,000,000 cycles
Material
Bottom PPO UL 94 V0 PPO UL 94 V0 PPO UL 94 V0
Front ABS UL 94 V0 ABS UL 94 V0 ABS UL 94 V0
Top PPO UL 94 V0 PPO UL 94 V0 PPO UL 94 V0
Connection type Screw terminal Screw terminal Screw terminal
Mounting type plug-in plug-in plug-in

PNOZ 16SP
Operating Manual PNOZ 16SP
19900-EN-05 20
Mechanical data 777070 777073 777075
Conductor cross section
with screw terminals
1 core flexible 0,25 - 2,5 mm², 24 - 12
AWG
0,25 - 2,5 mm², 24 - 12
AWG
0,25 - 2,5 mm², 24 - 12
AWG
2 core with the same
cross section, flexible
with crimp connectors,
no plastic sleeve
0,25 - 1 mm², 24 - 16
AWG
0,25 - 1 mm², 24 - 16
AWG
0,25 - 1 mm², 24 - 16
AWG
2 core with the same
cross section, flexible
without crimp connect-
ors or with TWIN crimp
connectors
0,2 - 1,5 mm², 24 - 16
AWG
0,2 - 1,5 mm², 24 - 16
AWG
0,2 - 1,5 mm², 24 - 16
AWG
Torque setting with screw
terminals 0,5 Nm 0,5 Nm 0,5 Nm
Dimensions
Height 94 mm 94 mm 94 mm
Width 45 mm 45 mm 45 mm
Depth 121 mm 121 mm 121 mm
Weight 335 g 335 g 335 g
Where standards are undated, the 2017-01 latest editions shall apply.
Order no. 777076 -787070
General 777076 777077 787070
Approvals
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
CCC, CE, EAC (Euras-
ian), TÜV, cULus Listed
Electrical data 777076 777077 787070
Supply voltage
Voltage 230 V 240 V 24 V
Kind AC AC AC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (AC) 3,5 VA 3,5 VA 3,5 VA
Frequency range AC 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Supply voltage
Voltage 24 V 24 V 24 V
Kind DC DC DC
Voltage tolerance -15 %/+10 % -15 %/+10 % -15 %/+10 %
Output of external
power supply (DC) 2 W 2 W 2 W
Residual ripple DC 20 % 20 % 20 %
Duty cycle 100 % 100 % 100 %
Inputs 777076 777077 787070
Number 2 2 2