Light curtains
ULVT - Grid
 
 
    
 

  • Passable areas
  • Horizontal safeguarding
  • Robotic areas
  • Entrance to dangerous areas
 
 
The light curtain correspond to the following safety regulations.
 
Sicherheitsintegritätslevel SIL 3
IEC 61508
ISO 13849-1
EN 954-1
 
 
  • integrated control-unit with contactor control and restart activatable by DIP switches activatable
  • contactor/valves directly connectablly, switching capacity 0,5A/24V
  • 2 to 20 beams at protection heights of 100mm to 1900mm in 100mm steps
  • microprocessor monitoring of the safety functions
  • built in selfdiagnostic with error display
  • muting and stroke operation with optional safety control-unit
  • short reaction time
  • protective system IP65
  • Reach to 24 m/optional till 60 m practicable
 
Function description
 

The safety light curtains ULVT consist of the two components: transmitter and receiver. The distance between both components and the overall height result in those protection width and - height.

By the modular construction protection heights of 100mm to 1900mm are realizable. Special sizes are also available.

If an object is in the protection field, i.e. it is darkened at least one of the beams, the two outputs of the receiver interrupt the dangerous movement of the machine, or prevent a start. A renewed start of the machine is in the operating mode with restart only possible by pressing the start push-button during a free protection field.

Several LED at the receiver display thereby the respective operating condition. The system detects an internal or external error the machine is immediately switched off and the LED in the transmitter or in the receiver shows by flashing the error status.
 
Integrated connector plug in connector cover
 
The ULVT construction series is supplied with PG threaded joints as standart. Various conventional connector plugs can also be obtained as optional accessories. The electric connection is implemented via terminal screws in the connector cover. The cover can be removed once the 4 screws have been loosened.
 
Operating modes 
 


DIP-position

Without contactor check


DIP-position

With contactor check

 The operating mode with contactor control serves for monitoring the triggered follow-up contactors.
After each interruption of the optical path and before each release of the switching outputs the follow-up contaction are checked whether they dropped. If the contactors don´t dropped with in 300ms the light curtain output contacts go into lock status.


DIP-position

Without restart interlock


DIP-position

With restart interlock

 If the operating mode with restart control is adjusted, a push-button must be connected for the start release of the working movement.
With a free protection field the yellow LED lights up. After actuating the start push-button the two outputs of the ULVT are activ.


DIP-position

Equivalent outputs


DIP-position

Antivalen outputs

 In the operating mode bivalent outputs both PNP outputs are errorproof and internally monitored on short circuit ad transverse. With free optical path, both outputs are high (+24V). In the operating mode antivalent outputs with free optical path output1 is high (+24V) and output2 is low (0V). Output2 is not error-proof in this operating mode. This operating mode is only allowed in connection with the control-units LSUW N1-Muting K or another safe secondary control, which monitors the Output2!
 
technical data 
 
  Transmitter ULVTS Receiver ULVTE
Supply voltage 24V DC SELV, +20% -10% 24V DC SELV, +/- 20%
Current consumption max. 250mA max. 250mA (without load)
Outputs - OSSD 1 and 2:
error-proof PNP outputs; max. 0,5A short-circuit and transverse conclusion monitoring
(in operating mode of antivalent outputs Output2 is not error-proof, max. 20mA)
Inputs - Inputs contactor control and start push-button: 0V to 24V DC + / - 20%
electrical link integrated plug connector with PG9 as strain relief;
alternatively usual market plug connectors		 integrated plug connector with PG9 as strain relief;
alternatively usual market plug connectors
Lead 3-pol. max 1,5mm² 5 to 7-pol. (depending upon type of driving) max. 1,5mm²
 
 
Executions
 
 
Entrance protection
Entrance protection
Entrance protection
Entrance protection
Entrance protection
Entrance protection
Protective field height (mm)

Construction Heigth(mm)

Beam Spacing

100mm

no. of beams

Beam Spacing

200mm

no. of beams

Beam Spacing

300mm

no. of beams

Beam Spacing

400mm

no. of beams

Beam Spacing

500mm

no. of beams

Beam Spacing

500mm

no. of beams

Detection range

24 m

Detection range

24 m

Detection range

24 m

Detection range

24 m

Detection range

24 m

Detection range

8 m
100
196
-
-
-
-
-
-
200
296
3
2
-
-
-
-
300
396
4
-
2
-
-
-
400
496
5
3
-
2
-
-
500
596
6
-
-
-
2
-
500/2R
650
Beam diversion via mirror. Wiring required to only one head.
-
2
600
696
7
4
3
-
-
-
700
796
8
-
-
-
-
-
800
896
9
5
-
3
-
-
900
996
10
-
4
-
-
-
1000
1096
11
6
-
-
3
-
1100
1196
12
-
-
-
-
-
1200
1296
13
7
5
4
-
-
1300
1396
14
-
-
-
-
-
1400
1496
15
8
-
-
-
-
1500
1596
16
-
6
-
4
-
1600
1696
17
9
-
5
-
-
1700
1796
18
-
-
-
-
-
1800
1896
19
10
-
-
-
-
1900
1996
20
-
-
-
-
-
 
Download
ULVT
1500 kB
Operating instructins/Betriebsanleitung
english
 
--Info requests--
 
Contact 
 

Firma Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9
D-73734 Esslingen
Internet: www.fiessler.de
eMail: info@fiessler.de

Guard ULVT

++49(711) 91 96 97 - 27
technical information

++49(711) 91 96 97 - 10
Ordering and price information

 
 
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© 17 Juni, 2011