Balluff BES M30EP-PFC12F-S04G-D12, BES Q40ZU-PFC20F-S04G-D12, BES Q40ZU-PFC15B-S04G-D12 User Manual
english
BES M30EP-PFC12F-S04G-D12
BES Q40ZU-PFC15B-S04G-D12
BES Q40ZU-PFC20F-S04G-D12
Inductive Safety Sensors
User's Manual
www.balluff.com
Original user's guide
All rights reserved. Protected within the legally permissible
limits of the United States and internationally. This
document may not be copied or modified without prior
written permission from Balluff.
All the trademarks and names appearing here are for
identification purposes only. Some of these trademarks
may be registered trademarks of the respective owners.
Balluff is not liable for any technical or printing errors,
removal of the text contained herein or unintended
damage resulting from use of the material.
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BES M/Q…-D12 Inductive Safety Sensors
1 About This User's Guide 4
1.1 Typographical Conventions 5
1.2 Abbreviations 6
1.3 Warnings 6
2 About This Product 8
2.1 Product description 8
2.2 Scope of delivery 8
2.3 Funktion 9
2.4 Release zone 10
2.5 Relevant standards 12
3 General Safety Notes 13
3.1 Approved Use 13
3.2 Non-approved Use 14
3.3 Personnel Requirements 14
3.4 Obligations of the Operating Company 14
4 Installation 17
4.1 Mounting and installation conditions for BES057A
and BES057C 17
4.2 Mounting and installation conditions: BES0577 20
4.3 Measures against simple circumvention 21
5 Electrical Connection 23
5.1 Operation as 4-conductor 23
6 Startup 24
6.1 Calibration aid 24
6.2 Determining the Release zone 25
6.3 Disabling the calibration aid 26
6.4 Switching state of the outputs 27
7 Operation 29
7.1 Operating mode 29
7.2 Response times 32
7.3 LED display 34
8 Technical Data 36
9 Maintenance, Care, and Disposal 40
9.1 Troubleshooting 40
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BES M/Q…-D12 Inductive Safety Sensors
1 About This User's Guide
This user's guide contains all the information you need for operating
the following inductive safety sensors:
– BES0577
– BES057A
– BES057C
For questions that go beyond the scope of this user's guide, our
Technical Customer Service is available for any function-related
information.
1. Read this user's guide completely and follow the instructions
contained in it.
2. In particular, follow the safety and warning instructions.
3. Retain this user's guide and ensure that it is always available
directly at the location of the use.
4. Make this user's guide available to third parties as necessary.
Note
In the interest of continual product improvements the technical
data for this product and the contents of this user's guide
are subject to change without notice. The latest status of this
user's guide is available on Balluff website www.balluff.com.
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BES M/Q…-D12 Inductive Safety Sensors
1.1 Typographical Conventions
Actions
Individual action instructions are indicated by a preceding triangle:
► Action instruction
⇒ Result of action
► Action instruction 2
Action sequences are numbered in order:
1. Step 1
2. Step 2
3. Step 3
Symbols
Note
The symbol and the word Note indicate information which is
helpful or important for use of the product.
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BES M/Q…-D12 Inductive Safety Sensors
1.2 Abbreviations
CCF Common Cause Failure
Failure as a consequence of as common cause
DC Diagnostic Coverage
Diagnostic Coverage
MTTF
D
Mean Time To Dangerous Failure
Mean Time To Dangerous Failure
PFH
(PFH
D)
Probability of (dangerous) Failure per Hour
Probability of (dangerous) Failure per Hour
PL Performance Level
PL according to ENISO13849-1
SIL Safety Integrity Level
Safety Integrity Level SIL 1-4 according to IEC61508.
The higher the SIL, the less the probability for failure
of a safety function.
SIL
cl
Safety Integrity Level claim limit
Safety Integrity Level Suitability (according to IEC62061)
T
M
Mission time
Life expectancy (=max. time of use)
1.3 Warnings
Warning notes are especially safety-relevant and are used for
accident avoidance. This information must be read thoroughly and
followed exactly. The warning notes are constructed as follows:
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BES M/Q…-D12 Inductive Safety Sensors
SIGNAL WORD
Type and source of the hazard
Consequences of non-observance
► Measures for hazard avoidance
The signal words used have the following meaning:
NOTICE
The warning word NOTICE indicates a risk which can result in
damage to or destruction of the product.
CAUTION
The general warning symbol combined with the signal word
CAUTION indicates a risk which can result in slight or moderate
injuries.
WARNING
The general warning symbol combined with the signal word
WARNING indicates a risk which can result in serious injury or
death.
DANGER
The general warning symbol combined with the signal word
DANGER indicates a risk which can result directly in serious
injury or death.
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BES M/Q…-D12 Inductive Safety Sensors
2 About This Product
2.1 Product description
The inductive safety sensor type BES057A, BES057C, and BES0577
detects metal without contact.
2.2 Scope of delivery
Type Scope of delivery Order
Code
BES Q40ZU-PFC15B-S04G-D12:
– 1Safety sensor with
pre-attached mounting
bracket
– 1Allen wrench for fixing
the safety sensor on the
mounting bracket
– 1 Original user's guide
BES057A
BES Q40ZU-PFC20F-S04G-D12:
– 1Safety sensor with
pre-attached mounting
bracket
– 1Allen wrench for fixing
the safety sensor on the
mounting bracket
– 1 Original user's guide
BES057C
BES M30EP-PFC12F-S04G-D12:
– 1 Safety sensor
– 2 Mounting nuts M30
– 1 Original user's guide
BES0577
Figure 1 Scope of delivery by type
Note
Should one of the components listed be missing or damaged,
please contact one of the Balluff subsidiaries.
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BES M/Q…-D12 Inductive Safety Sensors
2.3 Funktion
BES057A:
"0"
"1"
1
Safety sensor
2
Close zone
3
Release zone
4
Assured turn-off
distance s
ar
5
Damping element
Yellow signal LED:
Switching state
Green power LED:
Operating voltage
BES057C:
"0"
"1"
1
Safety sensor
2
Close zone
3
Release zone
4
Assured turn-off
distance s
ar
5
Damping element
Yellow signal LED:
Switching state
Green power LED:
Operating voltage
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BES M/Q…-D12 Inductive Safety Sensors
BES0577:
"0"
"1"
LEDs
1
Safety sensor
2
Close zone
3
Release zone
4
Assured turn-off
distance s
ar
5
Damping element
Yellow signal LED:
Switching state
Green power LED:
Operating voltage
Figure 2 Function overview
2.4 Release zone
The outputs (OSSDs) are only released when damping occurs in the
release zone. Outside this release zone the outputs remain off.
NOTICE
Improper damping elements
The use of incorrect damping elements can result in changes or
deviations in the release zone.
► Use only standardized targets which correspond to the standardized
target in shape and size.
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BES M/Q…-D12 Inductive Safety Sensors
Please refer to the following table for the assured turn-off distance
sar for the various sensors:
Order code Turn-off distance
BES057A > 30mm
BES057C > 45mm
BES0577 > 30mm
Release zone for selected materials1):
Material Release zone
BES057A BES057C BES0577
FE360 (=ST37K) 10…15 mm 4…20 mm 6…12 mm
Stainless steel
1.4301 (V2A)
7.5…13.2 mm 2…17.6 mm 3.8…8.8 mm
AIMg3G22 2…5.8 mm 0…9.6 mm 0.7…4.8 mm
AI 99 % 1.4…5mm 0…8.6mm –
CuZn37 2.3…6.2 mm 0…10 mm 1…5.2mm
Cu 0.8…4.3 mm 0…7 mm 0…3.7 mm
1) Typical values for damping with a reference target
(per EN60947-5-2 at an ambient temperature of 20°C):
– BES057A: 45 x 45 x 1 mm and non-flush mounting
– BES057C: 60 x 60 x 1 mm and non-flush mounting
– BES0577: 45 x 45 x 1 mm and non-flush mounting
Note
Depending on the composition of the damping element the
close zone may be absent.
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BES M/Q…-D12 Inductive Safety Sensors
2.5 Relevant standards
The following directives and standards were applied:
– 2006/42/EG
European Machine Directive
– 2014/30/EU
EMC Directive
– EN ISO 13849-1:2015
Safety of machinery – Safety-related parts of control systems –
Part 1: General principles for design
– IEC 60947-5-2:2007 + A1:2012
Low-voltage switching devices: Control devices and switching
elements – Proximity switches
– IEC 61508:2010
Functional Safety of Electrical/Electronic/Programmable
Electronic Safety-related Systems
– EN: 62061/: 2013
Safety of machinery – Functional safety of safety-related
electrical, electronic and programmable electronic control
systems
– UL 508
– IEC 60947-5-3:2013
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BES M/Q…-D12 Inductive Safety Sensors
3 General Safety Notes
3.1 Approved Use
Safety function SF: The safe condition (final stage turned off,
logical"0") is achieved when there is undamping greater than or
equal to the safe turn-off condition sar (see Section Technical Data
on page36). Also observe the instructions for installing the sensor
(see Section Installation on page17).
Note
The device is suitable for applications up to 5Hz.
The safety sensor meets Performance Level d per ENISO13849-1
as well as the requirements for SIL3 per IEC61508 and meets
SILcl3 per IEC62061.
The device corresponds to the classification:
– I2C40SP2 per IEC60947-5-2 for non-flush mounting
(BES057A and BES057C).
– I2A30SP2 per IEC60947-5-2 for non-flush mounting
(only BES0577).
The inductive safety sensor has been certified by TÜV NORD.
1-channel operation is included in the certification.
Note
The EU Declaration of Conformity as well as the certificates for
EN/IEC61508 and EN/ISO13849-1 from TÜV NORD can be
found at www.balluff.com.
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BES M/Q…-D12 Inductive Safety Sensors
3.2 Non-approved Use
Warranty and liability claims against the manufacturer are rendered
void by:
– Unauthorized tampering
– Improper use
– Use, installation or handling contrary to the instructions provided
in this User's Guide.
– The sensor is not permitted to be used as a mechanical stop.
– Measures must be taken against the foreseeable defeating of the
interlocking device (see DINENISO14119).
3.3 Personnel Requirements
Installation and startup are to be performed only by skilled
professionals. The specifications contained in this user's guide as
well as the prevailing standards and directives must be followed.
Skilled professionals are persons who are familiar with the work
such as installation and the operation of the product and have the
necessary qualifications for these tasks.
3.4 Obligations of the Operating Company
Follow the instructions in the User's Guide.
– Improper use may result in malfunction of the device. Equipment
damage and/or personal injury during operation may then result.
Therefore observe all instructions for installation and handling of
the device as described in this document. Observe the safety
instructions for operation of the overall system.
– Non-observance of instructions and standards, especially for
manipulation and/or changes to the device will result in loss of
liability and warranty.
– If the sensor is damaged the safety function can no longer be
guaranteed.
– Errors caused by damage cannot be detected by the sensor.
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BES M/Q…-D12 Inductive Safety Sensors
– The device may be installed, connected and put into service only
by a person trained in safety technology and electronics.
– The relevant technical standards must be considered as part of
the respective application.
– Observe the requirements of EN60204 when installing.
– If the device malfunctions, contact the manufacturer. Opening of
and tampering with the device are not permitted.
– Disconnect the device from power before working on it. If
appropriate also turn off independently powered relay circuits.
– Perform a complete function test after installation, maintenance
or repair.
– Use the device only in specified ambient conditions (see Section
Technical Data on page36). Contact the manufacturer for any
special ambient conditions.
– Use only within the specified application description.
– Safety requirements for the application
– The safety requirements for the respective application must
agree with the requirements laid out here.
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BES M/Q…-D12 Inductive Safety Sensors
Observe the following conditions::
► Take measures which prevent metallic objects from unknowingly
contacting the active surface.
► For interlocking devices together with guards observe
DINENISO 14119.
► Maintain specified application conditions (see Section Technical
Data on page36).
► Use of the sensor in the vicinity of chemical and biological media
as well as ionizing radiation is not permitted.
► Maintain the rest current principle for all safety circuits connected
externally to the system.
► For faults within the safety sensor which result in a change to
the condition defined as safe: Take measures which maintain the
safe condition for continued operation of the host controller.
► Replace damaged devices.
Functional impairments
In the event of defects and device malfunctions that cannot be
rectified, the device must be immediately taken out of operation and
protected against unauthorized use.
Intended use is ensured only when the housing is fully installed.
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BES M/Q…-D12 Inductive Safety Sensors
4 Installation
4.1 Mounting and installation conditions for
BES057A and BES057C
Orient sensor face
2
1
2
21
3
4
21
4
The cable socket can be rotated:
6 7
5 6
75
7
Figure 3 Material of sensing surface
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BES M/Q…-D12 Inductive Safety Sensors
Installation conditions for BES057A:
The device cannot be installed flush in steel per IEC60947-5-2,
TypeI2C40SP2.
In addition the device may be installed flush on steel on one side.
In copper, aluminum and brass the device can be flush mounted per
IEC60947-5-2, TypeI1C40SP2.
► Secure the device against coming loose.
► Tighten screws to 1Nm.
► Limit use of slot holes to initial setting.
► Note installation conditions per figures1 to 5:
1
80
80
105
3
2
Angle Channel
80
80
4
5
80
80
80
Figure 4 Minimum distances from metal surfaces for BES057A
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BES M/Q…-D12 Inductive Safety Sensors
Installation conditions for BES057C:
The device cannot be installed flush in steel per IEC60947-5-2,
TypeI2C40SP2.
Flush mounting of the safety sensor is not permitted since an
increase of the switching distance up to release of the outputs
(OSSDs) may occur.
► Secure the device against coming loose.
► Tighten screws to 1Nm.
► Limit use of slot holes to initial setting.
► Note installation conditions per figures1 to 5:
1
280
3
80
20
80
105
2
80
Angle Channel
4
80
80
80
80
80
5
Figure 5 Minimum distances from metal surfaces for BES057C
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BES M/Q…-D12 Inductive Safety Sensors
4.2 Mounting and installation conditions:
BES0577
The device cannot be installed flush in steel per IEC 60947-5-2,
TypeI2C40SP2.
► Secure device against loosening (tightening torque ≤50Nm).
► Note installation conditions per figures1 to 3:
Figure 6 Minimum distances from metal surfaces for BES0577
WARNING
Failure of the safety function
The safety function of the sensor cannot be assured when using
outside of the defined ambient conditions.
► Use only in accordance with the defined ambient conditions (see Section
Technical Data on page36).
► Use of the sensor in the vicinity of chemical and biological media as well
as ionizing radiation is not permitted.
NOTICE
Unintended metallic objects
If unintended metallic objects besides the intended damping element
contact the sensing face or land in the release zone, this can result in
destruction of the device and loss of the safety functionality.
► Provide appropriate measures to ensure that only intended metallic
objects for damping come near the sensing face.
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BES M/Q…-D12 Inductive Safety Sensors
4.3 Measures against simple circumvention
The safety sensor responds to metallic objects, e.g. the frame of a
safety door. Other metallic objects which are not supposed to result
in release of the sensor must not cause an unintended release of the
safety sensor.
In addition, the sensor has the following switching behavior for
making simple circumvention of its safety function more difficult:
1. Slow approach of a metallic object into the release zone causes
the outputs to switch without delay but the Signal LED does not
come on until approx. 3sec. later (see Section7.1 Operating
mode on page29). This means in general the object is in the
close zone before the Signal LED comes on. The technical requirements with respect to restarting the system must be observed.
2. If the object remains in the close zone for more than approx.
2sec., the outputs are completely locked and not released when
there is damping in the close zone. If the object remains in the
close zone longer than 5sec., the adjustment mode is activated
(see Section6.1 Calibration aid on page24).
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BES M/Q…-D12 Inductive Safety Sensors
The clear zone can be unblocked as follows:
– Undamp (>30mm) for a time of more than 2 sec
Type Undamp
BES057A >30mm
BES057C >45mm
BES0577 >30mm
– Voltage interruption (see Section6.3 Disabling the calibration aid
on page26).
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BES M/Q…-D12 Inductive Safety Sensors
5 Electrical Connection
NOTICE
Exceeding maximum voltage
In case of a single fault, if the supply voltage of 60V exceeds the
maximum supply voltage of 120V DC for more than 0.2sec. can
result in destruction of the device and loss of the safety functionality.
► Ensure separation of the supply voltage and transformer.
► Use a safety industrial power supply with overvoltage protection where in
case of a fault 42V AC or 60V DC is not exceeded.
Connecting the safety sensor:
1. Disconnect the equipment from power.
2. If appropriate also turn off independently powered relay circuits.
3. Connect the supply voltage: +UB to terminal 1 and 0V to
terminal 3 of the plug.
Note
The nominal voltage is 24V DC. This voltage may fluctuate
according to EN61131-2 between 19.2V and 30V incl. 5%
ripple.
5.1 Operation as 4-conductor
3
1
4
2
+U
B
0 V
A2
A1
+24 V
IN1
GND
IN2
1
1
Safety-relevant logic unit
Figure 7 Electrical connection when operating as a 4-conductor
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BES M/Q…-D12 Inductive Safety Sensors
6 Startup
6.1 Calibration aid
For simple and safe installation the sensor has an optical setup aid
for visualizing the release zone.
BES057A:
300
> 5 s
mm
Signal
Power
The setup aid is activated by bringing the
metallic object in front of the safety sensor
(close zone).
After approx. 5sec. the yellow Signal LED
starts to flash: The setup aid is activated.
While this mode is active the output stage
remains in the safe condition "0").
BES057C:
450
> 5 s
mm
Signal
Power
The setup aid is activated by bringing the
metallic object in front of the safety sensor
(close zone).
After approx. 5sec. the yellow Signal LED
starts to flash: The setup aid is activated.
While this mode is active the output stage
remains in the safe condition "0").
BES0577:
300
> 5 s
mm
Signal
Power
The setup aid is activated by bringing the
metallic object in front of the safety sensor
(close zone).
After approx. 5sec. the yellow Signal LED
starts to flash: The setup aid is activated.
While this mode is active the output stage
remains in the safe condition "0").
1
Close zone
2
Release zone
Figure 8 Activating the setup aid
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BES M/Q…-D12 Inductive Safety Sensors
6.2 Determining the Release zone
When the setup aid is activated, moving the damping element (or the
sensor if the target is fixed) allows the release zone to be determined.
300
> 5 s
mm
Signal
Power
As soon as the target arrives in the
release zone the yellow LED turns off.
If the target is located in one of the
directions outside the release zone,
the LED begins to flash again.
1
Close zone
2
Release zone
Figure 9 Determining the Release zone
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BES M/Q…-D12 Inductive Safety Sensors
6.3 Disabling the calibration aid
BES057A:
300
< 2 s
mm
Signal
Powe
r
> 2 s
Signal
Powe
r
If the sensor is undamped (>30mm) for more
than 2sec., the setup aid is turned off and the
yellow Signal LED goes out.
This can also be accomplished by interrupting
the supply voltage.
BES057C:
450
< 2 s
mm
Signal
Powe
r
> 2 s
Signal
Powe
r
If the sensor is undamped (>45mm) for more
than 2sec., the setup aid is turned off and the
yellow Signal LED goes out.
This can also be accomplished by interrupting
the supply voltage.
BES0577:
300
< 2 s
mm
Signal
Powe
r
> 2 s
Signal
Powe
r
If the sensor is undamped (>30mm) for more
than 2sec., the setup aid is turned off and the
yellow Signal LED goes out.
This can also be accomplished by interrupting
the supply voltage.
1
Close zone
2
Release zone
Figure 10 Deactivating the setup aid
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BES M/Q…-D12 Inductive Safety Sensors
6.4 Switching state of the outputs
Safe condition
The safe condition is a turned-off condition (unpowered condition:
Logic "0") of at least one of the outputs A1 or A2 (OSSDs).
If one of the outputs A1 or A2 is turned off, the downstream safety
logic unit must bring the entire system into the condition defined
as safe.
Switched condition
If the damping element is in the release zone and there is no sensor
error, both outputs A1 and A2 (OSSDs) are released (Logic "1").
Output specifications
The output specifications are based on the specifications for the
input per EN61131-2 Type1 or Type2:
Logic "1" ≥ 15V 2...15mA
≥ 11V 15...30mA
Logic "0" ≤ 5V Residual current 0.2mA
1)
1)
Pull-down current typ. 30mA
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Cross-connection / short circuit
– Crossing both the outputs (A1 and A2) is detected by the sensor
and results in turning off the outputs (OSSDs) at the next safety
request. The outputs A1 and A2 remain turned off until the fault
is eliminated and a voltage reset has been performed.
– A short-circuit between one of the outputs (A1 or A2) and the
supply voltage causes the other output (A1 or A2) to turn off
when there is a safety request.
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BES M/Q…-D12 Inductive Safety Sensors
7 Operation
7.1 Operating mode
The duration of the previous undamping determines whether the
yellow Signal LED comes on immediately or with a time delay when
a damping object enters the release zone. In any case the outputs
turn on with no time delay.
When undamping, the outputs turn off and the yellow Signal LED
comes on with no time delay.
When damping in the close zone the outputs immediately turn off,
whereas the yellow Signal LED only goes off after a delay of approx.
2sec. When the Signal LED goes out the outputs are kept in the
off state at the same time. This makes it no longer possible to turn
them back on in the release zone. A release takes place either by
undamping (>sar) for more than 2sec. or by a voltage interruption
(see Section4.3 Measures against simple circumvention on
page21).
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BES M/Q…-D12 Inductive Safety Sensors
Delayed switching of the Signal LED
BES057A:
Undamping < 2s:
300
> 3 s
mm
Signal
Power
If the damping element was removed from
the sensor for more than approx. 2sec.
(>30mm), the yellow Signal LED comes on
when damping in the release zone with a
delay of approx. 3sec.
This is also the case if the damping element
is located in the release zone when power is
turned on.
BES057C:
Undamping < 2s:
450
> 3 s
mm
Signal
Power
If the damping element was removed from
the sensor for more than approx. 2sec.
(>45mm), the yellow Signal LED comes on
when damping in the release zone with a
delay of approx. 3sec.
This is also the case if the damping element
is located in the release zone when power is
turned on.
BES0577:
Undamping < 2s:
300
> 3 s
mm
Signal
Power
If the damping element was removed from
the sensor for more than approx. 2sec.
(>30mm), the yellow Signal LED comes on
when damping in the release zone with a
delay of approx. 3sec.
This is also the case if the damping element
is located in the release zone when power is
turned on.
1
Close zone
2
Release zone
Figure 11 Delayed switching
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BES M/Q…-D12 Inductive Safety Sensors
Non-delayed switching of the Signal LED
BES057A:
Undamping < 2s:
300
≈ 0 s
*)
mm
Signal
Power
If the damping element was removed from
the sensor for less than 2sec. (>30mm),
the yellow Signal LED comes on with no
delay when damping in the release zone.
BES057C:
Undamping < 2s:
450
≈ 0 s
*)
mm
Signal
Power
If the damping element was removed from
the sensor for less than 2sec. (>45mm),
the yellow Signal LED comes on with no
delay when damping in the release zone.
BES0577:
Undamping < 2s:
300
≈ 0 s
*)
mm
Signal
Power
If the damping element was removed from
the sensor for less than 2sec. (>30mm),
the yellow Signal LED comes on with no
delay when damping in the release zone.
1
Close zone
2
Release zone
*) except for initial startup
Figure 12 Non-delayed switching
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7.2 Response times
Type Response
time
Response time to a safety request
(removing from the release zone)
≤50ms
Response time when approaching the close zone
(non-safety relevant done)
≤100ms
Response time when approaching the release zone
(release time)
typ. 100ms
≤200ms
Risk time / error response time for safety-relevant errors ≤100ms
Permissible dwell time in close area approx. 2s
Delay time for activating the setup aid
(see Section6.1 Calibration aid on page24).
approx. 5s
Dwell time in undamped state (≥30mm) for return to operating
mode (see Section6.3 Disabling the calibration aid on
page26).
approx. 2s
Simultaneity of switching on and off of the outputs in case
of a safety request
≤50ms
Test pulse duration t
i_max
on A1A2 max.1ms
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BES M/Q…-D12 Inductive Safety Sensors
Type Response
time
Test pulse interval Tp (2) [pulse packet]
1
0
t
1
0
t
Response times
min.2ms
max.5ms
1
Test pulse duration
2
Test pulse interval Tp (pulse packet)
3
Test pulse interval T
Test pulse interval T (pulse packet repetition)
min.30ms
max.50ms
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7.3 LED display
Sensor type BES057A, BES057C:
LED Operating status Outputs A1
(OSSD)
A2
(OSSD)
Signal No supply voltage Both outputs
turned off
0 0
Power
Signal
Undervoltage 0 0
Power
Signal Overvoltage Both outputs
turned off
0 0
Power
Signal
Damping element
outside the release zone
(operating mode) or
within the release zone
(adjusting mode)
Both outputs
turned off
0 0
Power
Signal
Damping element
within the release zone
(operating mode)
Both outputs
released
1 1
Power
Signal
Damping element
outside the release zone
(adjusting mode)
Both outputs
turned off
0 0
Power
Signal
Internal or external
error (see Section
9.1Troubleshooting on
page40)
0
0
1
0
1
0
Power
LED on LED off LED flashing (2 Hz) LED flashing rapidly (5 Hz)
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BES M/Q…-D12 Inductive Safety Sensors
Sensor type BES0577:
LED Operating status Outputs A1
(OSSD)
A2
(OSSD)
Signal No supply voltage Both outputs
turned off
0 0
Power
Signal
Undervoltage 0 0
Power
Signal
Power
Overvoltage Both outputs
turned off
0 0
Sensor error
(see Section
9.1Troubleshooting
on page40)
One output or
both outputs
turned off
0
1
0
1
0
0
Signal
Power
– Operating mode:
Damping element
at assured turn-off
distance from
sensor (>30mm)
– Adjusting mode:
Damping element
within the release
zone
Both outputs
turned off
0 0
Signal
Power
Adjusting mode:
Damping element
within the close zone
or very near the
release zone
Both outputs
turned off
0 0
Signal
Power
Operating mode:
Damping element
within the release
zone (operating mode)
Both outputs
released
1 1
LED on LED off LED flashing (2 Hz) LED flashing rapidly (5 Hz)
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35
BES M/Q…-D12 Inductive Safety Sensors
8 Technical Data
BES057A BES057C BES0577
BES057A BES057C BES0577
Product Features
Plug connection M12
Release zone 10…15mm 4…20mm 6…12mm
Non-flush mount
Meets the
requirements
EN ISO 13849-1:2015, Category 4 PL e
IEC 61508: SIL 3
IEC 62061: SILcl 3
Area of use
Operating mode Continuous operation (maintenance-free)
Electrical data
Electrical version DC PNP
Operating voltage 24VDC (19.2…30VDC)
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BES M/Q…-D12 Inductive Safety Sensors
BES057A BES057C BES0577
Rated isolation
voltage
30V
Current
consumption
<30mA
Protection class III
Polarity reversal
protection
Yes
Ready delay time 5s
Outputs
Output function 2 x OSSD (A1 and A2)
Output voltage
at 24V
Compatible with EN 61131-2, inputs type 1, 2
Voltage drop 2.5V; (100mA)
Current load
capacity
100mA
Short circuit
protection
Yes
Detection range
Release zone 10…15mm 4…20mm 6…12mm
Assured turn-off
distance s
ar
30mm 45mm 30mm
Response time to a safety request
Response time to
a safety request
≤50ms
Response time
when approaching
the release zone
(release time)
≤200ms
Risk time (fault
response time)
≤100ms
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37
BES M/Q…-D12 Inductive Safety Sensors
BES057A BES057C BES0577
Environmental conditions
Operating
conditions
Class C per EN 60654-1 Weather-protected
Ambient
temperature
–25...70°C –25...60°C –25...70°C
for mission time ≤87,600h
10…40°C, for mission time ≤175,200h
Temperature
change rate
0.5K/min
Max.permissible
relative humidity
5…95%, short-time
5…70%, continuous
Air pressure 80...106kPa
Height above
sea level
≤2000m
Isolating radiation not permitted
Salt mist No
Protection Class IP65/IP67 IP68/IP69
Approvals/Tests
EMC IEC60947-5-2
Shock resistance IEC60947-5-2
Vibration resistance IEC60947-5-2
Safety values
Mission Time ≤175,200h
(20years)
Safety-related
reliability PFH
D
2.5E-09h
38
BES M/Q…-D12 Inductive Safety Sensors
BES057A BES057C BES0577
Mechanical data
Installation type Non-flush mount
Housing material PPE; zinc
die-cast
PPE; zinc
die-cast
V4A (1.4404);
PBT
Weight 0.346kg 0.315kg 0.255kg
Displays/operating elements
Display LED yellow (Signal)
LED green (Power)
Electrical Connection
Connection M12 plug connection; gold plated contacts
Pin assignments
3
1
4
2
+U
B
0 V
A2
A1
+24 V
IN1
GND
IN2
1
1
Safety-relevant logic unit
Accessories
Accessories
(included)
1Allen wrench
1mounting bracket
2 mounting nuts
Remarks Unless otherwise indicated, all data in the entire
temperature range are based on a reference target per
IEC 60947-5-2 (FE360 = ST37K)
45 x 45 x 1mm 60 x 60 x 1mm 45 x 45 x 1mm
Packaging unit 1 pc.
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39
BES M/Q…-D12 Inductive Safety Sensors
9 Maintenance, Care, and Disposal
No special measures for maintenance and upkeep are necessary
when operated properly.
The device may be repaired only by the manufacturer.
Dispose of the device in accordance with the prevailing national
regulations for environmentally safe disposal.
9.1 Troubleshooting
Problem Possible Cause Troubleshooting
No LED
display
No supply voltage Turn voltage on
Power LED
flashes and
sensor does
not switch
– Undervoltage
– Overvoltage
Correct voltage (see
Section 8 Technical Data on
page36)
Sensor does
not switch
even after
undamping
and damping
Sensor was placed in the
safe condition (logical "0").
Cause:
– Short-circuit between
outputs A1 and A2
– Short-circuit between
output A2 and the supply
voltage
– Error detected within the
sensor
– Eliminate short-circuit
– Replace the device
Applies only to BES057A
and BES057C:
– Turn power off and on
again
– Check wiring and
connections
– Check other electronics
(e.g. PLC)
Applies only
to BES0577:
No close zone
Damping element shifts the
release zone directly up
to the sensor face due to
its composition (material,
shape, size).
If possible change the
material, shape or size of
the damping element (see
Section 6.2 Determining
the Release zone on
page25).
40
BES M/Q…-D12 Inductive Safety Sensors
www.balluff.com
41
BES M/Q…-D12 Inductive Safety Sensors
42
BES M/Q…-D12 Inductive Safety Sensors
www.balluff.com
43
BES M/Q…-D12 Inductive Safety Sensors
Balluff GmbH
Schurwaldstraße 9
73765 Neuhausen a.d.F.
Germany
Phone +49 7158 173-0
Fax +49 7158 5010
balluff@balluff.de
www.balluff.com
No. 929653 EN · K16; Subject to changes.
www.balluff.com
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