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CES-A-ABA-01

EUCHNER CES-A-ABA-01, CES-A-ABA-01B Operating Instructions Manual

EN
Operating Instructions
Non-Contact Safety System
CES-A-ABA-01/CES-A-ABA-01B (Unicode)
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
2
(translation of the original operating instructions) 071873-15-07/15
Contents
1. About this document ............................................................................................. 4
1.1. Scope ............................................................................................................................................4
1.2. Target group ..................................................................................................................................4
1.3. Key to symbols ...............................................................................................................................4
1.4. Supplementary documents ..............................................................................................................4
2. Correct use .......................................................................................................... 5
3. Description of the safety function .......................................................................... 6
4. Exclusion of liability and warranty ......................................................................... 7
5. General safety instructions.................................................................................... 7
6. Function ............................................................................................................... 8
6.1. Block diagram CES-A-ABA-… ...........................................................................................................9
7. Mounting ............................................................................................................ 10
8. Electrical connection .......................................................................................... 11
8.1. Notes about ..........................................................................................................................11
8.2. Safety in case of faults ..................................................................................................................11
8.3. Fusing of the power supply and the safety contacts .........................................................................11
8.4. Correct connection .......................................................................................................................12
8.5. Connection example CES-A-ABA-01B ..............................................................................................13
9. Setup ................................................................................................................. 14
9.1. LED indicators ..............................................................................................................................14
9.2. Teach-in operation .........................................................................................................................14
9.2.1. Carrying out teach-in for rst actuator (default setting on delivery) ....................................15
9.2.2. Carrying out teach-in for a new actuator..........................................................................15
9.3. Functional check ...........................................................................................................................16
9.3.1. Self-test with test input TST ...........................................................................................16
10. System status table ............................................................................................ 17
11. Technical Data .................................................................................................... 18
11.1. Evaluation unit CES-A-ABA-... ..........................................................................................................18
11.2. Read head CES-A-LNA-… ...............................................................................................................20
11.3. Read head CES-A-LNA-SC ..............................................................................................................22
11.4. Read head CES-A-LCA-… ...............................................................................................................25
11.5. Read head CES-A-LMN-SC ..............................................................................................................29
11.6. Actuator CES-A-BBA/CES-A-BCA .....................................................................................................31
11.7. Actuator CES-A-BQA ......................................................................................................................32
11.8. Actuator CES-A-BDA ......................................................................................................................33
11.9. Actuator CES-A-BMB .....................................................................................................................34
3
071873-15-07/15 (translation of the original operating instructions)
Operating Instructions
EN
12. Ordering information and accessories ................................................................. 35
13. Inspection and service ........................................................................................ 35
14. Service .............................................................................................................. 35
15. Declaration of conformity ................................................................................... 36
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
4
(translation of the original operating instructions) 071873-15-07/15
1. About this document
1.1. Scope
This document is valid for
Ì Non-Contact Safety System CES‑A‑ABA‑01, evaluation unit for 1 read head (order no. 071850) Ì Non-Contact Safety System CES‑A‑ABA‑01B, evaluation unit for 1 read head (order no. 083513)
1.2. Target group
Design engineers and installation planners for safety devices on machines, as well as setup and servicing staff possessing special expertise in handling safety components.
1.3. Key to symbols
Symbol/depiction Signicance
Printed document
www
Document is available for download at www.euchner.de
Document on CD
DANGER
WARNING
CAUTION
Signal word: DANGER WARNING CAUTION
Consequence if not observed:
Death or severe injuries Possibly death or severe injuries Possibly minor injuries
NOTICE
Important!
Signal word: NOTICE Important!
Malfunction or device damage possible Important information
Tip Useful information
1.4. Supplementary documents
The overall documentation for this device consists of the following documents:
Document title (document number)
Contents
Safety Information and Maintenance CES-A…/ CES-AZ/CES-FD (109083)
Ì Basic safety information Ì Maintenance instructions
Operating instructions (071873)
(this document)
Important!
Always read all documents to gain a complete overview of safe installation, setup and use of the device. The documents can be downloaded from www.EUCHNER.de. For this purpose enter the doc. no. in the search box.
5
071873-15-07/15 (translation of the original operating instructions)
Operating Instructions
EN
2. Correct use
Evaluation units of the series CES-A are used to evaluate safety-related signals from EUCHNER read heads. The system forms an interlocking device without guard locking. It meets the requirements according to ENIEC60947-5-3.
The system consists of evaluation unit, read head and actuator. It forms an interlocking device with high coding level (type4).
In combination with a movable safety guard and the machine control, this system prevents dangerous machine functions from occurring while the safety guard is open. A stop command is triggered if the safety guard is opened during the dangerous machine function.
This means:
Ì Starting commands that cause a dangerous machine function must become active only when the safety guard is closed. Ì Opening the safety guard triggers a stop command. Ì Closing a safety guard must not cause automatic starting of a dangerous machine function. A separate start command
must be issued. For exceptions, refer to EN 12100 or relevant C-standards.
Before use, a risk assessment must be performed on the machine, e.g.according to the following standards:
Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design Ì ENISO12100, Safety of machinery – General principles for design – Risk assessment and risk reduction Ì IEC62061, Safety of machinery – Functional safety of safety-related electrical, electronic and programmable electronic
control systems.
Correct use includes observing the relevant requirements for installation and operation, e.g. according to the following standards:
Ì ENISO13849-1, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design Ì ENISO14119, Safety of machinery – Interlocking devices associated with guards – Principles for design and selection Ì EN60204-1, Safety of machinery – Electrical equipment of machines – Part 1: General requirements
The following components can be connected to the evaluation unit CES-A-ABA…:
Ì CES read heads Ì CEM read heads Ì CET read heads
For further information, refer to the operating instructions of the corresponding component and to Table 1: Possible com‑
binations for CES components on page 6.
Important!
Ì The user is responsible for the proper integration of the device into a safe overall system. For this
purpose, the overall system must be validated, e.g.in accordance with ENISO13849-2.
Ì Correct use requires observing the permissible operating parameters (see Technical data). Ì If a data sheet is included with the product, the information on the data sheet applies. Ì It is only allowed to use components that are permissible in accordance with the table below.
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
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(translation of the original operating instructions) 071873-15-07/15
Table 1: Possible combinations for CES components
Evaluation unit Read head
Actuator
CES-A-BBA
071840
CES-A-BCA
088786
CES-A-BDA
084720
CES-A-BMB
077791
CES-A-BQA
098108
CES-A-NBA-...
All items
CES-A-BPA
098775
CEM-A-BE05
094805
CEM-A-BH10
095175
CET-A-BWK-50X
096327
CES-A-ABA-01
071850
CES-A-LNA...
All items
CES-A-LNA-SC
077715
CES-A-LCA...
All items
CES-A-LMN-SC
077790
CES-A-LQA-SC
095650
CES-A-ABA-01B
083513
CES-A-LNA...
All items
CES-A-LNA-SC
077715
CES-A-LCA...
All items
CES-A-LMN-SC
077790
CES-A-LQA-SC
095650
CEM-A-LE05K-S2
094800
CEM-A-LE05R-S2
095792
CEM-A-LH10K-S3
095170
CEM-A-LH10R-S3
095793
CET-AX
Key to symbols
Combination possible
Combination possible, guard locking for process protection
Combination possible, guard locking for personal protection
Combination not permissible
3. Description of the safety function
Devices from this series feature the following safety functions:
The following applies in combination with read heads without guard locking (CES read heads) and read heads with guard locking for process protection (CEM/CET read heads):
Monitoring of the position of a safety guard (interlocking device according to EN ISO 14119)
Ì Safety function:
- The safety contacts are switched off when the safety guard is open (see chapter 11. Technical Data on page 18).
Ì Safety characteristics: Category, Performance Level, PFH
d
(see Technical data CES‑A‑ABA‑01B on page 19).
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071873-15-07/15 (translation of the original operating instructions)
Operating Instructions
EN
4. Exclusion of liability and warranty
In case of failure to comply with the conditions for correct use stated above, or if the safety instructions are not followed, or if any servicing is not performed as required, liability will be excluded and the warranty void.
5. General safety instructions
WARNING
Danger to life due to improper installation or due to bypassing (tampering). Safety components fulll a personal protection function.
Ì Safety components must not be bypassed, turned away, removed or otherwise rendered ineffec-
tive. On this topic pay attention in particular to the measures for reducing the possibility of bypass­ing according to ENISO14119:2013, section 7.
Ì The switching operation must be triggered only by actuators designated for this purpose. Ì Mounting, electrical connection and setup only by authorized personnel possessing the following
knowledge:
- specialist knowledge in handling safety components
- knowledge about the applicable EMC regulations
- knowledge about the applicable regulations on occupational safety and accident prevention.
Ì The number of teach-in and switching operations is saved in the internal memory of the evaluation
unit. If necessary, this memory can be read by the manufacturer.
Important!
Prior to use, read the operating instructions and keep these in a safe place. Ensure the operating instructions are always available during mounting, setup and servicing. EUCHNER cannot provide any warranty in relation to the readability of the CD for the storage period required. For this reason you should archive a printed copy of the operating instructions. You can download the operating instructions from www.EUCHNER.de.
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
8
(translation of the original operating instructions) 071873-15-07/15
6. Function
The safety system consists of three components:
Ì Coded actuator Ì Read head Ì Evaluation unit
1 read head can be connected to the evaluation unit.
The read heads and actuators are assigned to the device in a special teach-in operation.
Each delivered actuator possesses a unique electronic coding and so is a unique element in the system used. The code in an actuator cannot be reprogrammed.
The read head is fastened to the xed part of the safety guard and is connected to the evaluation unit via a two-core screened cable (terminals H11, H12 and SH1).
The actuator fastened to the movable part of the safety guard is moved towards the read head by closing the door. When the switch-on distance is reached, power is supplied to the actuator by the read head by induction and data can be transferred. The read code is compared with the taught-in code in the evaluation unit.
If all data for match, the door monitoring output OUT (semiconductor output) is set to HIGH and the safety outputs (relay output) are enabled. The OUT LED illuminates.
Due to the combination of dynamic polling of the actuators and the redundant, diverse design of the safety electronics with redundantly controlled safety outputs, the evaluation unit will enter the safe state with every detectable fault.
When a safety guard is opened, the safety outputs switch off the safety circuit and the OUT LED goes out. The state of the safety outputs is monitored internally by positively driven NC contacts (relay output).
Independent of the switching state of the safety circuit, the position of the safety door can be polled via the output OUT.
If an internal fault occurs in the evaluation unit, the safety circuit is switched off, the diagnostic output (ERR) is set HIGH and the ERROR LED illuminates red.
The safety contacts on the safety switch CES can also switch small currents. This allows the user to connect the device directly to a safe control system.
9
071873-15-07/15 (translation of the original operating instructions)
Operating Instructions
EN
6.1. Block diagram CES-A-ABA-…
24V
TST
TST input not connected:
Operation without external testing
0V
OUT ERR GND
H11
10kΩ
10kΩ
H12
141323 24
SH1
DDSP
CPU-A CPU-B
KA
KB
white
brown
Screen connection
DDSP: Double Dynamic Safety Part with fault
monitoring of the actuator, read head and the cable to the read head
CES evaluation unit
Read head
Coded actuator
Trans-
ponder
Illustration: Actuator not in the operating distance
TST Test input (see 9.3.1. Self‑test with test input TST on page 16) OUT Door monitoring output (not a safety output) ERR Diagnostic output GND 0 V (connected internally to 0 V for the operating voltage) H11/H12 Read head connection SH1 Read head screen connection 13/14 Connection for relay contact A, safety relay enable 23/24 Connection for relay contact B, safety relay enable
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
10
(translation of the original operating instructions) 071873-15-07/15
7. Mounting
NOTICE
Device damage due to improper installation or unsuitable ambient conditions.
Ì Read heads and actuators must not be used as a mechanical end stop. Ì Observe EN ISO 14119:2013, sections 5.2 and 5.3, for information about fastening the safety
switch and the actuator.
Ì Observe EN ISO 14119:2013, section 7, for information about reducing the possibilities for by-
passing an interlocking device.
Ì The evaluation unit must be mounted in a control cabinet with a minimum degree of protection of
IP54. A snap-in element on the rear of the device is used for fastening to a mounting rail.
Ì If several evaluation units are mounted side by side in a control cabinet without air circulation
(e.g.fan), a minimum distance of 10mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.
Important!
Ì From the assured switch-off distance S
ar
, the safety outputs are safely shut down.
Ì When mounting several read heads, observe the stipulated minimum distance to avoid mutual in-
terference.
- For CES-A-LNA/-LCA s
min
=50mm
- For CES-A-LMN s
min
=20mm
- For CES-A-LQA s
min
=80mm
s
min
Ì If the actuator is installed ush, the switching distance changes as a function of the installation
depth and the safety guard material.
Operating
distance
Actuator
Operating
distance
Actuator
Flush mounting Surface mounting
Note the following points:
Ì Actuator and read head must be tted so that
- the front faces are at the minimum switch-on distance 0.8xSao or closer when the safety guard is closed (see section Operating distances). To avoid entering the area of possible side lobes, a minimum distance is to be maintained in case of a side approach direction. See section Typical operating distance for the related actuator.
- a hazard is excluded until the assured switch-off distance (Sar) is reached when the safety guard is open.
- the actuator is positively mounted on the safety guard, e.g.by using the safety screws included.
- they cannot be removed or tampered with using simple means.
Ì Pay attention to the maximum tightening torque for the read head or safety switch and actuator mountings of 1Nm. For
read heads/actuators made of PE-HD, the maximum tightening torque is only 0.5Nm.
11
071873-15-07/15 (translation of the original operating instructions)
Operating Instructions
EN
8. Electrical connection
WARNING
In case of an error, loss of the safety function through incorrect connection.
Ì Monitoring outputs must not be used as safety outputs. Ì Lay the connection cables with protection to prevent the risk of short circuits.
NOTICE
Risk of damage to equipment or malfunctions as a result of incorrect connection.
Ì All the electrical connections must either be isolated from the mains supply by a safety transform-
er according to IEC 61558-2-6 with limited output voltage in the event of a fault, or by other equiv­alent isolation measures.
Ì All electrical outputs must have an adequate protective circuit for inductive loads. The outputs
must be protected with a free-wheeling diode for this purpose. The switch-on current may have to be limited for capacitive loads.
Ì The tightening torque for the screws on the connection terminals must be 0.6…0.8Nm. Ì The connection cable for the read heads must only be extended using EUCHNER plug connectors,
and adequate consideration must be given to EMC. Intermediate terminals must not be used.
Ì The screen on the connection cable for the read head must be connected to the appropriate termi-
nal SH on the evaluation unit. The portion of cable from which insulation is stripped should be kept as short as possible (max. 3cm).
8.1. Notes about
Important!
Ì For use and operation as per the requirements
1)
, a power supply with the feature “for use in
class 2 circuits” must be used. Alternative solutions must comply with the following requirements: a) Electrically isolated power supply unit with a max. open-circuit voltage of 30V/DC and a limited
current of max. 8A.
b) Electrically isolated power supply unit in combination with fuse as per UL248. This fuse should be
designed for max. 3.3A and should be integrated into the 30VDC voltage section.
Ì Use cable material made of copper wire with a temperature resistance of at least 75°C.
1) Note on the scope of the UL approval: The devices are tested according to the requirements of UL508 and CSA/ C22.2 no. 14 (protection against electric shock and re).
8.2. Safety in case of faults
Ì The operating voltage U
B
is reverse polarity protected.
Ì The connections for the read heads, ERR and OUT are not short circuit-proof. Ì A short circuit between 13/14 and 23/24 can be detected only by means of external pulsing. Ì A short circuit in the cable can be excluded by laying the cable with protection.
8.3. Fusing of the power supply and the safety contacts
Ì Provide external contact fuses (6AgG fuse or 6A circuit breaker, characteristic B or C) for relay outputs. Ì The power supply must be protected with a max. 8A fuse ahead of terminal U
B
.
Operating Instructions Non-Contact Safety System CES-A-ABA-01/CES-A-ABA-01B
12
(translation of the original operating instructions) 071873-15-07/15
8.4. Correct connection
Important!
Ì To ensure safety, both safety outputs (13/14 and 23/24) must be evaluated. Ì To achieve category3 according to ENISO13849-1, it is necessary to monitor the downstream
contactors.
M
Monitoring output
(no safety function!)
Relay K
A
Relay K
B
+ 24 V
+ 24 V
To the control system
+ 24 V
0 V
24 V
OUT
14
13
24
23
Application
CES-A-ABA...
WARNING
In case of an error, loss of the safety function through incorrect connection.
Ì To ensure safety, both safety outputs (13/14 and 23/24) must always be evaluated. Sin-
gle-channel use of the safety outputs leads to a reduction of the category in accordance with EN ISO 13849-1.
M
Monitoring output
(no safety function!)
Relay K
A
Relay K
B
+ 24 V
To the control system
0 V
24 V
OUT
14
13
24
23
Application
CES-A-ABA...
+ 24 V
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