Safety Light Curtains
BLCT 
 

 

Areas of application:

  • Presses for metal, wood, plastic, rubber, leather and glass
  • Filter presses
  • Chamfering and bending machines
  • Injection moulding machines
  • Machining centers and welding presses
  • Automatic placement machines
  • Robots
  • Palleting machines

 


The light correspond to the highest safety regulations.
- Safety category 4 (EN 954-1 und IEC 61496 Part1 +Part2 or EN 61496)
- deployable to 3 (EN 61508)
- Performance Level PL e (ISO 13849-1)


  • Integrated control-unit with contactor control and restart can be programmed without a PC
  • Contactor/valves directly connectablly, switching capacity 0,5A/24V
  • Smallest safety distances by short response times 4 ms to 29 ms, depending of the protection high
  • Finger and hand protection with up to 5m protective width(resolution 14 mm and 30 mm)
  • Protection heights from 100mm to 1500 mm in steps of 100 mm
  • Microcontroller monitoring of the safety functions (self-monitored)
  • Semiconductor outputs with short-circuit and crossconnection monitoring
  • Integrated self-diagnosis with a fault indication by 7-digit display
  • Optional safety switchgears permit muting and clocked operation
  • Direct connection via M12 connector
  • Compact design 25 x 35 mm w/ flexible fastening by tenon blocks and protection category IP 65
 
Function description 
 

ULCT/BLCT safety light curtains each comprise two components:
Light transmitter and light receiver.
The clearance between these two components and the installation height determine the width and height of the protective field (Figure 5/1). Modular design permits realization of protective field heights ranging from 100 mm to 1500 mm in 100-mm steps.
The transmitter generates infrared light beams in rapid pulses. These parallel light beams are analyzed by two single-chip controllers in the transmitter.
The beam spacing determines the resolution. If an object enters the protective field, i.e. if at least one light beam is interrupted, the receiver's two outputs stop the machine or prevent it from starting, thus avoiding hazards.
In the restart with interlock operating mode, the machine can only be restarted by means of the start button once the protective field has been cleared again.

 
 
Assembly 
 

The ULCT/BLCT can be mounted on the side or the rear with the help of the accompanying swivel fixtures. A long and a short swivel fixture are included.

Optional:
Another means of mounting is to position a block(available from Fiessler Elektronik) in the slot on the rear of the ULCT/BLCT.

 

 
 
F
F
Lateral mounting
Rear mounting
Optional mounting
Operating mode 
 
BLCT
+
+
+
+
Finger protection(resolution14 mm)
+
-
+
-
Hand protection(resolution 30 mm)
+
+
+
+
EDM - Contactor control
+
+
+
+
RES - restart interlock
+
+
+
+
Cascaded
-
+
-
+
Blanking
-
+
-
+
Reduced resolution
with a Muting controller PLSK1K - PLSG3K or Programmable Safety Center FPSC
Muting
with a voltage supply ULSG(potential free Outputs) or Contact extension FSEM
Relay output optional
with a controller PLSG3K or Programmable Safety Center FPSC
Cyclical control 1 - 4 cycl
Emergency-stop circuit monitor
Door switch monitoring
 
technical data 
 
  Transmitter BLCT - S Receiver ULCT - E / BLCT - E
Supply voltage 24 V DC + 20 % - 15 % SELV, PELV 24 V DC ± 20% SELV, PELV
Current consumption max. 250mA max. 250 mA (without load)
Outputs - OSSD 1 and 2: Fail-safe PNP outputs with short-circuit and
cross-connection monitoring.
Output current: min. 0 mA: max. 0.5 A
Max. output current in the inactive state: 50 μA
Max. voltage in the inactive state: 0.9 V
Max. capacitive load: 1 μF
Inputs - Contactor control (EDM) and start button
0 V to 24 V DC ± 20 %, max. 5 mA
Electrical connection M12 plug connector, 4-pole M12 plug connector, 8-pole
 
Implementation 
 
BLCT / 14 mm resolution(finger protection)
System:
Protective field height/Beam count
Reaction time (ms)
Length (mm)
BLCT 100/12
5
161
BLCT 200/24
6
261
BLCT 300/36
7
361
BLCT 400/48
8
461
BLCT 500/60
9
561
BLCT 600/72
10
661
BLCT 700/84
11
761
BLCT 800/96
12
861
BLCT 900/108
13
961
BLCT 1000/120
14
1061
BLCT 1100/132
15
1161
BLCT 1200/144
17
1261
BLCT 1300/156
18
1361
BLCT 1400/168
19
1461
BLCT 1500/180
20
1561
 
Accessories 
 

Contact Extension:

The contact extension FSEM for the extension or contact reinforcement. Applications up to the category 4 after EN 954-1 can be realized.

 
 
Download 
Product
Documentation
Deutsch
Amerikan English
BLPG/BPSG
Operating Instructions: Programming devices for BLCT
BLCT
Selection table Lightcurtain
-
BLCT
Appliance descrition
BLCT
Operating Instructions
BLCT 100 - 1500
Housing design / CAD formats stp,igs,dxf,dwg
 


Manufacturing Solutions, Inc. - Corporate Ofice
P.O. Box 427
Lawrenceburg, TN  38464
Office:  (931) 762-8773
Fax:  (931)766-0083

sales@mfg-sol.com

 
email to sales@mfg-sol.com