SBCR 01.pdf

SBCR01
Mono-beam safety control unit (category 2)
for accident prevention in dangerous areas
● System composed of a control unit and a pair of optic
sensors – M18 (SK) or M30 (TK)
● Control unit mountable on DIN rail:
The same control unit can use 5 different pairs of sensors
M18 and M30 for increased money and space saving: optic
protection (4 models) or surface protection with STP
accessory (1 model)
● Control circuit with intrinsic safety system
● The SBCR01 safety system is certified as a category 2
protection device and complies with the pr EN50100
standard
● 2 safety relays in the output circuit
● Free/engaged area LED indicator
● Response time 35ms (typical), 140 ms (max.)
Ordering system
serie
S B C R 0 1 - A
operating voltage
control unit for single through beam
SBCR01
A
24VAC
D
48VAC
H
115VAC
Z
230VAC
S
24VDC
Dimensions
21 2
3
20 19 18 17 16 15 14 13 12 11
1. emitter wiring connections
70
0V
+9V
Check +
EMITTER
Check -
TEST
SBCR01
ENGAGED
AREA
+9V
0V
RECEIVER
FREE
AREA
OUT
4
5
2. TEST contact for checking external actuators
9
SUPPLY
N (-) L1 (+)
F
MM
CHECK OUTPUT
OPER. OUTPUT
1 2 3 4 5 6 7 8 9 10
3. receiver wiring connections
8
7 6
100
4. red LED (engaged area indicator)
5. green LED (clear area indicator)
6. OPERATING OUTPUT
7. CHECK OUTPUT
110
8. power supply (24-48-110-220VAC; 24VDC)
10
10
18
9. power supply fuse (inside)
10. fastening holes 85x60mm

SBCR01
Specifications
Model SBCRO1-A SBCRO1-D SBCRO1-H SBCRO1-Z SBCRO1-S
Type AC AC AC AC DC
Operating voltage 24VAC 48VAC 115VAC 230VAC 24VDC
Tolerance
Line frequency
Max. absorption
Available functions
Safety output
Max. switching voltage
Max. switching current
Contact isolation
Contact life
Response time
LED indicators
Inputs
Protection degree
Temperature range
Storage temperature
Ambient humidity
Housing material
Weight (approx.)
+ 10% - 15%
50 - 60 Hz
6VA
Start/Restart, EDM (to be realized with external contactors)
forced contact relay: 1 contact NO, 1 contact NC
250VAC
6A (in use), 20A (switching)
250VAC
1x10 5 (electrical), 1x10 7 (mechanical)
35ms (typical), 140ms (max.)
green (free area), red (engaged area)
Test
IEC IP20
0…+50°C
-25°…+75°C
35…95%
ABS
440g
±15%
-
250mA
Wiring diagrams
L (+)
emitter
receiver
Emergency
BL/3
BN/1
BK/4
WH/2
BK/4
BN/1
BL/3
20 19 17 18 11 13 12 8 6
Start
Test
09Vcheck
out 9V 0
2
1
L (+)
N (-)
Power supply
+
-
Relay
C
operating
output
check
output
3
MM
D
k1
test
input
10 4 15
16
k3
k1
k3
k2
k1
k3
k2
C
K1
k2
K2 K3
R
N (-)
K1, K2, K3:
External
contactors
R, C:
Arc suppression
unit
To the line
K2
K2
K2
K3
K3
K3
K1
K1
K1
To the motor which starts-up
the dangerous movement
19

SBCR01
The following sensors can be connected to the SBCR01 safety control unit:
SK serie: SK1 models M18 through-beam optical protection guard up to 4m
SK serie: SK2 models M18 through-beam optical protection guard up to 8m
SK serie: SK4 models M18 through-beam optical protection guard up to 4m (visible light)
SK serie: SK3 models M18 through-beam with STP accessories surface protection guard up to 3m
TK serie: TK1 model M30 through-beam optical protection guard up to 50m
Description
The SBCR01 safety system’s purpose is to protect the access area
of machines with dangerous moving parts, which are ever more
frequently used in productive processes.
The SBCR01 safety system is made up of a control unit and a pair
of cylindrical sensors, emitter and receiver, which can be those in
the SK (M18) or in the TK (M30) range.
The safety sensors emit a beam of red or infrared light which
locks out the dangerous movement the moment it is interrupted
by an opaque object.
The SBCR01 system represents an inescapable and therefore
extremely safe system with an extremely quick response time.
The protection capacity in terms of the size of the protected
zone, target to be detected and safety distance, depends on the
intrinsic characteristics of the safety light curtain, in accordance
with the pr EN50100-1 and pr EN50100-2 regulations, and on the
application conditions in accordance with the regulation EN294
and EN999.
The SBCR01 system is capable of detecting an individual failure
by carrying out a periodic test cycle, which can be activated
through the relative test input.
If a failure is detected, the system activates the safety conditions
by locking the dangerous movement.
The SBCR01 control unit is equipped with two forced contact
relay outputs: an operating output and a check output. The operating
output is used to control the dangerous movement (NO
contact), while the check output is used to activate a supplementary
control for the operating output (NC contact).
The availability of two supplementary outputs allows an “alternate
control” to be carried out, which prevents systematic failures.
SK3 through-beam
(with sensitivity
adjustment)
Aluminium support
STP accessory
Soft compressible
rubber
The receiver is equipped with a sensitivity adjuster which can be
used to determine the level of the pressure which sets-off the
activation; the adjustment allows the activation threshold to be
set from a few millimetres up to a maximum of 13mm, which correspond
to the inside diameter of the STP accessory.
It is preferable for the operator to have an activation threshold
of a few millimetres, as this reduces the possibility of eventual
panic situations.
However, maintaining this threshold cannot be guaranteed in the
event of a failure. As a consequence, the system must be designed
so that it is safe (the operator shall not get hurt) even if
the activation threshold, for whatever reason, reaches the maximum
level.
dangerous
machine
Besides optical protections through sensors SK1, SK2, SK3 and
TK1, the SBCR01 control unit can also perform pressure protections
on a length of up to 3m, using SK3 sensors and the STP
accessory.
Fitting the system as indicated in the figure, the safety light curtain
beam is directed towards the inside of the soft, compressible
rubber accessory; pressure on the rubber part will interrupt
the inside beam and cause the system to switch to the safety
mode.
surface
pressure
protection
beam not interrupted
by the processed material
material being processed
which does not interfere
with the beam
beam interrupted
(pressure on the rubber guide)
free guarded area
normal operation
engaged guarded area
locked operation
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SBCR01
The STP accessory end parts, into which the sensors are
fitted, cannot be part of the sensitive field – this must be kept
in mind at the beginning of the project.
If it is necessary to obtain an area which is more sensitive to
pressure, there is a STOK accessory which has an adjustable
mechanical shutter.
Applications
The optical-electronic SBCR01 safety system can be
specifically used as a safety component in the following application
fields:
Perimeter protections
these are required to protect the operator from voluntary or accidental
intrusion into a danger area where there are fixed or mobile
manufacturing machines.
Some examples can be:
Packaging machinery in general;
Conveyor and assembly lines;
Automatic warehouses
Robotized areas;
Palletizers and unloaders;
Wrapping machines;
Machines for the ceramic industry.
Elimination of possible interference
between fixed machines and movable machinery or units inside
the equipped production facilities, in compliance with the rules
for the realisation of anti-collision systems or “give-way” systems
for material handling.
Some examples can be:
material handling areas;
hoisting machines;
work places with overhead travelling cranes or lifting cranes.
Surface protection
this is required to protect the operator from getting his hands
crushed or when it is necessary to work in close contact with the
machine.
Some examples can be:
rollers;
machines for hide processing;
sacking and packaging machines;
automatic gates and doors.
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