WEG CPW17 Manual de usuario
Emergency Stop Control
Control de Parada de Emergencia
Controle de Parada de Emergência
CPW17
User's Manual
Manual del Usuario
Manual do Usuário
Motors I Automation I Energy I Transmission & Distribution I Coatings
User's Manual
Series: CPW17
Language: English
Document: 10007588965 / 00
Publishing Date: 10/2020
Summary of Reviews
The information below describes the reviews made in this manual.
Version Review Description
-R00 First edition
Summary
1 SAFETY INSTRUCTIONS .......................................................................... 4
1.1 APPLICABLE STANDARDS ................................................................................................................4
2 GENERAL INFORMATION......................................................................... 5
2.1 FEATURES ...........................................................................................................................................5
2.2 FUNCTIONS ........................................................................................................................................6
2.3 APPLICATIONS ...................................................................................................................................7
2.4 TERMS AND DEFINITIONS................................................................................................................9
3 INSTALLATION AND CONNECTION ...................................................... 11
3.1 CONNECTIONS................................................................................................................................. 11
3.2 MOUNTING .......................................................................................................................................12
4 TECHNICAL SPECIFICATIONS............................................................... 13
5 DIMENSIONS ........................................................................................... 14
6 MAINTENANCE........................................................................................ 15
7 DECLARATION OF CONFORMITY......................................................... 16
7.1 APPROVALS.......................................................................................................................................16
Safety Instructions
4 | CPW17
English
1 SAFETY INSTRUCTIONS
The alert symbols shown below indicates potential hazard, risk or recommendation. If not follow the alerts may
cause dangerous situations to user or process.
DANGER!
Failure to comply with safety regulations can result in death, serious injury and / or serious damage.
Installation and commissioning of the device must be performed only by qualified and authorized
personnel.
The electrical connection of the device can only be made with the device isolated.
ATTENTION!
The general concept of the control system in which the device is incorporated must be validated by
the user.
The electrical connection of the device must comply with the instructions contained in this user
manual; otherwise, there is a risk that the safety function will be lost.
It is not allowed open the device, adulterate it or ignore security devices.
NOTE!
Observe regulations of the country when transporting, installing and disposing of the device.
All relevant safety rules and standards must be observed.
1.1 APPLICABLE STANDARDS
CPW17 complies with the following european directives and international standards:
Table 1.1: Applicable standards
European Directives
2006 / 42 / EC Machinery directive
2011 / 65 / EU + 2015 / 863 RoHS directive
International Standards
EN ISO 13849-1: 2015 Safety of machinery – safety-related parts of control systems
IEC 62061: 2005
+ AC:2010 + A1: 2013 + A2: 2015
Safety of machinery – functional safety of safety-related electrical, electronic and programmable
electronic control systems
IEC 60947-5-1: 2003 + A1: 2009
Low-voltage switchgear and control gear
Control circuit devices and switching elements
Electromechanical control circuit devices
IEC 61508 Parts 1-7: 2010 Functional safety of electrical / electronic / programmable electronic safety-related systems
EN IEC 63000: 2018 Technical documentation for the assessment of electrical and electronic products with respect
to the restriction of hazardous substances
General Information
CPW17 | 5
English
2 GENERAL INFORMATION
For machines and systems that can produce a risk for people when in operation, the EU Machinery directive
defines minimum requirements that are intended to reduce to a minimum the specific hazards and the related
risks of accident.
If all sources of danger cannot be eliminated by design measures, appropriate protective measures must be taken,
to prevent people entering the danger area.
The emergency stop safety relay CPW17 is designed for safety-related system and comply the requirements of
IEC 62061 and can be used up to safety category 4 – PL e according to EN ISO 13849-1.
The CPW17 are designed to execute safety-related functions as part of a process or machine. It is the responsibility
of the manufacturer of process or machine to ensure the correct functionality and safety functions of the entire
process or machine.
The CPW17 is a safety relay suitable to following safe guarding applications:
Mechanical safety switches with and without guard locking.
Non-contact safety switches.
Emergency stop switchgear.
Electro-sensitive protective equipment, etc.
2.1 FEATURES
The CPW17 has the following main features:
Compact case – 17.5 mm [0.688] in.
2 relay outputs, safe and redundant.
Single and dual-channel operation possible.
Manual or automatic start.
Cyclic monitoring of the output contacts.
Comply up to category 4, PL e, SIL 3, SIL CL3.
Connection of:
Emergency button.
Safety switch.
Non-contact safety switch.
OSSD-outputs devices.
Light curtains.
Initialization available in 2 behaviors:
Monitored manual start.
Automatic start.
Relay status indication by front view.
General Information
6 | CPW17
English
NOTE!
Observe regulations of the country when transporting, installing and disposing of the device.
All relevant safety rules and standards must be observed.
2.2 FUNCTIONS
The CPW17 is powered (A1 / A2) with extra-low voltage (SELV / PELV). The internal logical system closes the safety
contacts when the monitored safety inputs is closed and start button (S3) is pressed.
When the monitored safety inputs is opened (S1 / S2), the output contacts (13-14 / 23-24), forced guided, are opened
and safely shutdown the machine. It is ensured that a single fault does not lead to the loss of the safety function
and that every fault is detected by self-monitoring in a cyclical manner, ensuring detection after re-energization.
A1 A2 S0 S1 S2 13 23
S3 14 24
+
-
POWER
START
LOGIC
K1
K2
Figure 2.1: Block diagram
SINGLE-CHANNEL SAFETY CIRCUIT
A single positively driven contact in the safety component is connected to the relay. This type of connection is
suitable for categories 1 or 2 according EN ISO 13849-1.
DUAL-CHANNEL SAFETY CIRCUIT
Two contacts of which at least one is a positively driven contact are connected to the relay. This type of connection
is suitable for categories 3 or 4 according EN ISO 13849-1.
RELAY START CONTROL
After the relay has switched off, the relay must be re-started, with manual or automatic start:
Manual start: The relay is started by actuating a button. Before the safety inputs must be re-established.
Automatic start: The relay switches on automatically as soon as the safety inputs changes back to the safe state.
ATTENTION!
The renewed starting of the machine can only occurs automatically if it is ensured that there can be
no dangerous state.
General Information
CPW17 | 7
English
2.3 APPLICATIONS
Depending on the application or the result of the risk assessment according standard ISO 13849-1 and the safety
level achieve according IEC 61508, the CPW17 must be wired according examples shown below:
Suitable Electro-Sensitive Protective Equipment Safety Level
Light curtains
OSSD-outputs
devices
E
OSSD 2
S2
~ ~
24 V+ -
S0 S3 13
A1 A2 14
K1 K2
24
23S1
OSSD 1
K1 *
L
N
K2 *
R
Light
curtain
Manual start
Automatic
start
EN ISO 13849-1
PL e
CAT 4
IEC 61508 1-7
SIL 3
IEC 62061
SIL CL3
Dual-channel input device, OSSD type, with manual start (for automatic start: jumper S1 / S3).
ATTENTION!
The same ground reference connection must be used for all system components.
To applications with mechanical or electromechanical safety switches with or without contact does
not recommended use dual-channel inputs with two PNP inputs.
Suitable
Mechanical Safety Switches with/without Guard Locking
Non-Contact Safety Switches
Emergency Stop Switchgear
Safety Level
Emergency
buttons
Safety switches
Grid sensors
S2
~ ~
24 V+ -
S0 S3 13
A1 A2 14
K1 K2
24
23S1
K1 *
L
N
K2 *
Emergency
stop Manual start
Automatic
start
EN ISO 13849-1
PL d
CAT 3
IEC 61508 1-7
SIL 2
IEC 62061
SIL CL2
Dual-channel input device, type mechanical or electromechanical contact, with manual start (for automatic start: jumper S1 / S3).
General Information
8 | CPW17
English
Suitable
Mechanical Safety Switches with/without Guard Locking
Non-Contact Safety Switches
Emergency Stop Switchgear
Safety Level
Emergency
buttons
Safety switches
Grid sensors
S2
~ ~
24 V+ -
S0 S3 13
A1 A2 14
K1 K2
24
23S1
K1 *
L
N
K2 *
Emergency
stop Manual start
Automatic
start
EN ISO 13849-1
PL c
CAT 1
IEC 61508 1-7
SIL 1
IEC 62061
SIL CL1
Single-channel input device, type mechanical or electromechanical contact, with manual start (for automatic start: jumper S1 / S3).
*Optional feedback loop to monitor contactors or the expansion modules.
Configuration Manual Automatic
Start
S1 S0 S3
S1 S0 S3
Feedback
S1 S0 S3
K1
K2
S1 S0 S3
K1 K2
ATTENTION!
If set as automatic start, the safety contacts switch immediately after device powered.
If set as manual start, not must be possible to reach the restart command button from inside the
danger area.
NOTE!
Additional data can be requested from the manufacturer for applications that deviate from these
conditions.
DIAGNOSTIC
To assure the system diagnostic is reached its necessary perform a manually test proof, reached when safety
relay reach the safe state (switch off). According applications the following test proof intervals must be ensured.
Diagnostic
Standard CAT PL Test Interval
EN ISO 13849-1 4 e Once month
3 d Once year
General Information
CPW17 | 9
English
2.4 TERMS AND DEFINITIONS
CPW17
Emergency Stop Safety Relay from WEG Company.
PLMP
Standard screw fixing adapter from WEG Company.
CAT
Category: Classification of the safety-related parts of a control system in respect of their resistance to faults and
their subsequent behavior in the fault condition, and which is achieved by the structural arrangement of the parts,
fault detection and/or by their reliability.
[EN ISO 13849-1:2015]
PL
Performance Level: Discrete level used to specify the ability of safety-related parts of control systems to perform
a safety function under foreseeable conditions.
[EN ISO 13849-1:2015]
SIL
Safety Integrity Level: Discrete level for specifying the safety integrity requirements of the safety functions, where
safety integrity level 4 has the highest level of safety integrity and safety integrity level 1 has the lowest.
[IEC 61508:2010]
PFD
Probability of Dangerous Failure Demand: Safety unavailability of safety-related system to perform the specified
safety function when a demand occurs from the control system.
[IEC 61508:2010]
SFF
Safe Failure Fraction: Property of a safety related element that is defined by the ratio of the average failure rates
of safe plus dangerous detected failures and safe plus dangerous failures.
[IEC 61508:2010]
SIL CL
SIL Claim Limit: Maximum SIL that can be claimed for a safety related electrical control system in relation to
architectural constraints and systematic safety integrity.
[IEC 62061:2005]
PFHd
Probability of dangerous Failure per Hour: Average probability of dangerous failure within 1 h.
[IEC 62061:2005]
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