Pilz PNOZ s9 User manual

PNOZ s9
Operating Manual-21401-EN-10
}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 s9
21401-EN-10 3
Introduction 5
Validity of documentation 5
Using the documentation 5
Definition of symbols 5
Safety 6
Intended use 6
Safety regulations 7
Safety assessment 7
Use of qualified personnel 7
Warranty and liability 7
Disposal 8
For your safety 8
Unit features 8
Safety features 8
Block diagram/terminal configuration 9
Function description 9
Timing diagrams 10
Delay-on de-energisation, not retriggerable 10
Delay-on de-energisation, retriggerable 11
Pulse on switching on 12
Delay-on energisation 13
Installation 13
Wiring 14
Preparing for operation 14
Operating modes and delay time 14
Set operating modes 15
Set delay time 15
Connection 15
Operation 17
Status indicators 18
Fault indicators 18
Faults - malfunctions 19
Dimensions in mm 19
Technical details 20
Safety characteristic data 25

Contents
Operating Manual PNOZ s9
21401-EN-10 4
Supplementary data 26
Service life graph 26
Permitted operating height 28
Remove plug-in terminals 29
Order reference 29
EC declaration of conformity 29

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 5
Introduction
Validity of documentation
This documentation is valid for the product PNOZ s9. 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 s9
Operating Manual PNOZ s9
21401-EN-10 6
INFORMATION
This gives advice on applications and provides information on special fea-
tures.
Safety
Intended use
The unit meets the requirements of EN 60947-5-1, EN 60204-1 and VDE0113-1. In con-
junction with a base unit the unit is used as a
}Contact expansion module to increase the number of contacts available on a base unit.
Base units are all safety relays with feedback loop monitoring.
}Pulse relay
– In accordance with EN ISO 12100 (inching circuit for limited movement of hazard-
ous machine components during installation, set up and positioning)
– In safety circuits in accordance with VDE 0113 and EN 60204-1 (e.g. on movable
guards)
}Safe timer, delay-on energisation
– In accordance with EN ISO 14119 (release with delay through timer)
– In safety circuits in accordance with VDE 0113-1 and EN 60204-1 (e.g. on movable
guards)
}Safe timer, delay-on de-energisation
– In safety circuits in accordance with VDE 0113-1 and EN 60204-1 (e.g. on movable
guards)
The max. achievable safety level depends on the base unit. The expansion module may not
exceed this. The safety-related characteristic values stated under Safety-related character-
istic data [ 25] can only be achieved if the base unit also exhibits these values.
}The unit can also be used without a base unit as a pulse relay or safe timer.
The unit is designed for use with
}Safety relays in the series PNOZsigma, PNOZ X, PNOZelog, PNOZmulti
}Safety gate monitors from the PST series
}Two-hand relays from the PNOZsigma, P2HZ series
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 [ 20]).

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 7
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.
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.).

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 8
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.
Unit features
}Positive-guided relay outputs, either instantaneous, delay-on de-energisation
(also retriggerable), pulsing or delay-on energisation:
– 3 safety contacts
– 1 auxiliary contact
}Switch-on time, pulse time or delay-on de-energisation selectable with rotary switches
}LED indicator for:
– Supply voltage
– Input status, channel1
– Input status, channel2
– Switch status channel 1/2
– Start circuit
– Error
}Plug-in connection terminals (either spring-loaded terminal or screw terminal)
}See order reference for unit types
Safety features
The unit meets the following safety requirements:
}The unit monitors its own output contacts.
}The safety function remains effective in the case of a component failure.
}Earth fault in the feedback loop is detected.
}Earth fault in the input circuit:
The output relays de-energise and the safety contacts open.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 9
Block diagram/terminal configuration
Fig.: Centre: Front view with cover, right: Front view without cover
*Safe separation from non-marked area in accordance with EN 60947-1, 6 kV, basic insula-
tion between all safety contacts.
Function description
} Delay-on de-energisation, not retriggerable
If the supply voltage at the input circuit is interrupted, the safety contacts will open once
the set release time has elapsed, even if the safety function is cancelled during the
delay time. The unit cannot be reactivated until the delay time has elapsed.
} Delay-on de-energisation, retriggerable
(only possible as a standalone application or with the PNOZsigma base unit!)
If the supply voltage at the input circuit is interrupted, the safety contacts will open once
the set release time has elapsed.
If the safety function is cancelled during the delay time (e.g. safety gate closed), the unit
will remain active.
} Pulse on switching on
The safety contacts close when supply voltage is applied, the feedback loop is closed
and finally the input circuit is closed. The safety contacts are reopened once the pulse
time has elapsed.
If the input circuit is opened for more than 10 ms during the pulse time, the safety con-
tacts will open immediately and the auxiliary contact will be closed.
} Delay-on energisation
The set delay time is started when supply voltage is applied, the feedback loop is
closed and finally the input circuit is closed.
If the input circuit and feedback loop are closed once the delay time has elapsed, the
safety contacts will close and the auxiliary contact will be opened.
If the input circuit is opened for more than 10 ms, the safety contacts will open immedi-
ately and the auxiliary contact will be closed.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 10
with PNOZsigma base unit:
}Dual-channel operation via PNOZsigma connector
with other base units or without base unit:
}Single-channel operation: one input circuit affects the output relays
Timing diagrams
Delay-on de-energisation, not retriggerable
POWER
Input
Reset
Output safe
Output aux.
[1] [2]
Legend
}POWER: Supply voltage
}Input: Input circuit
}Output safe: Safety contacts
}Output aux: Auxiliary contact
}Reset: Feedback loop input
}t1: Switch-on delay
}tv: Delay time
}[1]: Delay-on de-energisation with the time tv
}[2]: No retriggering in the time tv
NOTICE
At the latest the safety contacts open after the set delay time + 20 ms +
15% of the set value, even in the case of a component failure.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 11
Delay-on de-energisation, retriggerable
POWER
Input
Reset
Output safe
Output aux.
[1] [2]
Legend
}POWER: Supply voltage
}Input: Input circuit
}Output safe: Safety contacts
}Output aux: Auxiliary contact
}Reset: Feedback loop input
}t1: Switch-on delay
}tv: Delay time
}tges: Overall delay time
}[1]: Delay-on de-energisation with the time tv
}[2]: Retriggering in the time tv for overall delay-on de-energisation tges
NOTICE
At the latest the safety contacts open after the set delay time + 20 ms +
15% of the set value, even in the case of a component failure.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 12
Pulse on switching on
t < 10 ms
POWER
Input
Reset
Output safe
Output aux.
[1] [2] [3] [4]
Legend
}POWER: Supply voltage
}Input: Input circuit
}Output safe: Safety contacts
}Output aux: Auxiliary contact
}Reset: Feedback loop input
}t1: Switch-on delay
}t2: Delay-on de-energisation
}tv: Delay time (pulse time)
}[1]: Normal operating cycle
}[2]: Fault: Input circuit opened too early
}[3]: Fault: Feedback loop closed too late
}[4]: Normal operating cycle with supply interruption < 10 ms
NOTICE
At the latest the safety contacts open after the set delay time + 20 ms +
15% of the set value, even in the case of a component failure.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 13
Delay-on energisation
[1] [2] [3] [4]
POWER
Input
Reset
Output safe
Output aux.
Legend
}POWER: Supply voltage
}Input: Input circuit
}Output safe: Safety contacts
}Output aux: Auxiliary contact
}Reset: Feedback loop input
}t2: Delay-on de-energisation
}tv: Delay time
}[1]: Normal operating cycle
}[2]: Fault: Input circuit opened too early, before tv expired
}[3]: Fault: Feedback loop closed too late after tv elapsed
}[4]: Normal operating cycle with supply interruption < 10 ms
NOTICE
At the earliest the safety contacts close after the set delay time - 20 ms -
15% of the set value, even in the case of a component failure.
Installation
Install contact expansion module without base unit:
}Ensure that the plug terminator is inserted at the side of the unit.
Connect base unit and PNOZsigma contact expansion module:
}Remove the plug terminator at the side of the base unit and at the contact expander
module
}Connect the base unit and the contact expansion module using the connector supplied,
before mounting the units to the DIN rail.
Control cabinet 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 (35 mm).

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 14
}When installed vertically: Secure the unit by using a fixing element (e.g. retaining
bracket or end angle).
}Push the unit upwards or downwards before lifting it from the DIN rail.
Wiring
Please note:
}Information given in the "Technical details [ 20]" must be followed.
}Outputs 17-18, 27-28, 37-38 are safety contacts; output 45-46 is an auxiliary contact
(e.g. for display).
}Auxiliary contact 45-46 shouldnot be used for safety circuits!
}To prevent contact welding, a fuse should be connected before the output contacts (see
Technical details [ 20]).
}Calculation of the max. cable length lmax in the input circuit:
Rlmax
Rl / km
Imax =
Rlmax = max. overall cable resistance (see Technical details [ 20])
Rl/km = cable resistance/km
}Use copper wire that can withstand 60/75°C.
}Sufficient fuse protection must be provided on all output contacts with capacitive and in-
ductive loads.
}Ensure the wiring and EMC requirements of EN 60204-1 are met.
}The power supply must comply with the regulations for extra low voltages with protect-
ive electrical separation (SELV, PELV) in accordance with VDE 0100, Part 410.
Preparing for operation
Operating modes and delay time
The operating mode and delay time are set via the rotary switches on the unit. You can do
this by opening the cover on the front of the unit.
NOTICE
Do not adjust the rotary switch during operation, otherwise an error mes-
sage will appear, the safety contacts will open and the unit will not be ready
for operation until the supply voltage has been switched off and then on
again.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 15
Set operating modes
}Switch off supply voltage.
}Select operating mode via the operating mode selector switch "mode".
}If the operating mode selector switch "mode" is in its start position (vertical position), an
error message will appear.
operating mode
selector switch
"mode"
delay-on de-en-
ergisation, not
retriggerable
delay-on de-en-
ergisation,
retriggerable
delay-on ener-
gisation
pulse on switch-
ing on
Set delay time
Time selector switch "t[s]"
Factor selector switch "n"
n x t[s] = Delay time
Example:
t = 4 s, n = 5
Delay time = 5 x 4 = 20 s
Connection
}Supply voltage
Supply voltage AC DC
A1 L+
A2 L-
INFORMATION
The supply voltage may only be connected as shown in the examples listed
below!

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 16
}1-channel input circuit/feedback loop
Input circuit Input circuit Feedback loop
Without base unit (stand-
alone)
S32 +24 V DC
A2 0 V
S3
A1
A2
24 V DC
0 V
PNOZs9
S34
S32
K5 K6
S3
Base unit:
Safety relay PNOZ X
24 V DC
0 V
A1
A2
PNOZs9
S32
S34
PNOZ X
24 V DC
0 V
A2
PNOZs9
45
46
PNOZ X S34
feedback
loop
Base unit:
Safety relay PNOZelog;
driven via semiconductor
outputs (24 VDC)
24 V DC
0 V
A1
A2
PNOZs9
S32
S34
PNOZelog
Output
24 V DC
0 V
A2
PNOZs9
45
46
PNOZelog S34 *
feedback
loop
INFORMATION
Feedback loop
The inputs that evaluate the feedback loop will depend on the base unit and
application.
* with PNOZelog as base unit:
The selectable delay-on de-energisation of PNOZ s9 may only be used with
the safety relay PNOZ e1p. Other PNOZelog safety relays must be oper-
ated without delay-on de-energisation.
}2-channel input circuit
Base unit: Safety relays
PNOZ s3, PNOZ s4, PNOZ
s5
Base unit: Safety relays
PNOZ s1, PNOZ s2
The input circuit is connec-
ted and evaluated via the
connector.
Interface
PNOZsigma
PNOZ s3
PNOZ s4
PNOZ s5
PNOZ s9
S34
S11
Interface
PNOZsigma
PNOZ s1
PNOZ s2
PNOZ s9
A1
24 V DC
S34
Base unit: Two-hand con-
trol device PNOZ s6
Base unit: Two-hand con-
trol device PNOZ s6.1
The input circuit is connec-
ted and evaluated via the
connector.
Interface
PNOZsigma
PNOZ s6
PNOZ s9
S34
S12
Interface
PNOZsigma
PNOZ s6.1
PNOZ s9
S34
S24

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 17
INFORMATION
If a base unit and a contact expansion module from the PNOZsigma range
are linked via the connector, no additional wiring is necessary.
Do not connect S32 on the contact expansion module!
}Application
Without feedback loop With feedback loop
Without base unit
A1
A2
24 V DC
0 V
PNOZs9
S34
S32 S3
A1
A2
24 V DC
0 V
PNOZs9
S34
S32
K5 K6
S3
Legend
}S3: Start button
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.
The unit is ready for operation when the Power LED is permanently lit.
LEDs indicate the status and errors during operation:
LED on
LED flashes

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 18
INFORMATION
Status indicators and error indicators may occur independently. In the case
of an error display, the "Fault" LED will light or flash (exception: "Supply
voltage too low"). An LED that is also flashing indicates the potential cause
of the error. An LED that is lit and is static indicates a normal operating
status. Several status indicators and error indicators may occur simultan-
eously.
Status indicators
POWER
Supply voltage is present.
IN1
Input circuit at S32 is closed.
IN2
Input circuit at S32 is closed.
OUT
Safety contacts are closed.
RESET
24 VDC is present at S34.
OUT
Set delay time is running.
Fault indicators
FAULT
Diagnostics: Plug terminator not connected
}Remedy: Insert plug terminator, switch supply voltage off and then on
again.
With base unit PNOZsigma:
Diagnostics: Input circuit S32 is closed without authorisation
FAULT
Diagnostics: Internal error, unit defective
}Remedy: Switch supply voltage off and then on again, change unit if neces-
sary.

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 19
POWER
Diagnostics: Supply voltage too low
}Remedy: Check supply voltage and increase if necessary.
RESET FAULT
Diagnostics: Position of rotary switch is not permitted or rotary switch was ad-
justed during operation.
}Remedy: Switch supply voltage off and then on again.
POWER, IN1, IN2, OUT, RESET, FAULT
Diagnostics: The operating mode selector switch "mode" is in its start position
(vertical position)
}Remedy: Switch off the supply voltage and set the required operating mode
on operating mode selector switch "mode".
Faults - malfunctions
}Contact malfunctions: If the contacts have welded, reactivation will not be possible after
the input circuit has opened.
}In the case of an error, the delay-on de-energisation contacts may open before the
delay time has elapsed.
Dimensions in mm
*with spring-loaded terminals
120 (4.72")
* 100 (3,94")
98 (3.86")
17,5
(0.69")

PNOZ s9
Operating Manual PNOZ s9
21401-EN-10 20
Technical details
General 750109 751109 751189
Approvals
CCC, CE, EAC (Euras-
ian), KOSHA, TÜV, cU-
Lus Listed
CCC, CE, EAC (Euras-
ian), KOSHA, TÜV, cU-
Lus Listed
CCC, CE, EAC (Euras-
ian), KOSHA, TÜV, cU-
Lus Listed
Electrical data 750109 751109 751189
Supply voltage
Voltage 24 V 24 V 24 V
Kind DC DC DC
Voltage tolerance -20 %/+20 % -20 %/+20 % -20 %/+20 %
Output of external
power supply (DC) 2 W 2 W 2 W
Residual ripple DC 20 % 20 % 20 %
Duty cycle 100 % 100 % 100 %
Max. inrush current im-
pulse
Current pulse, A1 0,7 A 0,7 A 0,7 A
Pulse duration, A1 10 ms 10 ms 10 ms
Max. overall cable resist-
ance Rlmax
Feedback loop 30 Ohm 30 Ohm 30 Ohm
A1/A2 20 Ohm 20 Ohm 20 Ohm
Inputs 750109 751109 751189
Voltage at
Feedback loop DC 24 V 24 V 24 V
Current at
Input circuit DC 15 mA 15 mA 15 mA
Feedback loop DC 15 mA 15 mA 15 mA
Max. inrush current im-
pulse
Current pulse, input cir-
cuit 0,1 A 0,1 A 0,1 A
Pulse duration, input
circuit 20 µs 20 µs 20 µs
Current pulse, feed-
back loop 0,1 A 0,1 A 0,1 A
Pulse duration, feed-
back loop 20 µs 20 µs 20 µs
Max. overall cable resist-
ance Rlmax
Single-channel at UB
DC 30 Ohm 30 Ohm 30 Ohm