- Blanking features for blanking any obstacles in the detection field
- integrated switching unit, contactor control and restart interlock activated by Dip-switches
- can be connected directly to contactors/valves, switching capacity 0,5A/24V
- minimum safety distance due to short response times, between 5 ms and 25 ms, depending on constructional length
- detection of smallest obstacles (14 mm / 30 mm) inside a detection range of 7 meters / 24 meters
- between 7 and 247 beams with protective heights from 100 up until 2500 mm
- micro-processor controlled safety functions
- muting and stroke operation with optional safety control-unit PLSG
- self-monitoring semiconductor outputs with line interruption monito ring, short-circuit- and side current passages check
- built-in self-diagnosis with error display
- protective system IP 65 (waterproof sealed)
The light curtain correspond to the following safety regulations:
EN 954-1 and IEC 61496 part + part 2 bzw. EN 61496:
Safety inegrity SIL 3 (IEC 61508)
Performance Level PL e (ISO 13849-1)
Safety category cat. 4 (EN 954-1)
The transmitter generates infra-red light beams flashing at high speed in synchronous action. The parallel light beams with a spacing of 7,5mm or 14,3mm are monitored by miocro-controllers. The receiver evaluated the arriving beams in synchronous action to the transmitter.
Due to the closeness of the beams, a resolution of 14 mm / 30 mm is achieved. If an obstacle is placed into the protective field, i.e. at least iner lieght beam is interrupted, the hazardous movement of the machine is stopped, i.e. a new start is not possible.
The operational mode with contactor control serves for monitoring of the triggered seconday contactors. After each interruption of the beams and before each release of the outputs, it is verified whether the secondary contactors have fallen. Only then another release is possible. If there is no reaction by contactors within 300 ms, the light curtain switches off the outputs and turns into interruption/locked mode.
If the operational mode with restart interlock is selected, a push-button must be installed at the start button input in order to release the start of the working movement.
With free protective field, the yellow receiver LED lights up, requesting operation start.
Only after pushing the start button both outputs of the ULVT are activated.
During the operational mode equivalent outputs both PNP-outputs are safety outputs and provide short-circuit- and side-current passages monitoring. With free optical path both outputs are high (+24V). During the operational mode antivalent outputs, output No .1 is high (+24V) and output No. 2 low (0V), with free optical path. During this operational mode, output 2 does not provide fail-safe results. This operational mode is only permitted if the safety control unitsLSUW NSR 3-1K, LSUW N1-Muting K or another safe secondary control to monitor output No. 2. are applied!
|Transmitter ULVTS||Receiver BLVTE|
|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|
For additional functions, like potential-free output contacts, stroke operation or Muting, the optional safety switching units ULSG, LSUW NSR 3-1-K and LSUW N1-Muting K are available, as well as a special programmer device for the Blanking program.
|resolution 14 mm||resolution 14 mm||resolution 30 mm||resolution 30 mm|
|Protection box height (mm)|
/ ray number
|Construction length (mm)||Order data||reaction time (ms)||Order data||reaction time (ms)|
|100 / 13||196||BLVT 100 / 13||7||BLVT 100 / 7||7|
|200 / 26||296||BLVT 200 / 26||9||BLVT 200 / 14||9|
|300 / 39||369||BLVT 300 / 39||10||BLVT 300 / 21||10|
|400 / 52||496||BLVT 400 / 52||12||BLVT 400 / 28||12|
|500 / 65||596||BLVT 500 / 65||14||BLVT 500 / 35||14|
|600 / 78||696||BLVT 600 / 78||15||BLVT 600 / 42||15|
|700 / 91||796||BLVT 700 / 91||17||BLVT 700 / 49||17|
|800 / 104||896||BLVT 800 / 104||19||BLVT 800 / 56||19|
|900 / 117||996||BLVT 900 / 117||20||BLVT 900 / 63||20|
|1000 / 130||1096||BLVT 1000 / 130||22||BLVT 1000 / 70||22|
|1100 / 143||1196||BLVT 1100 / 143||24||BLVT 1100 / 77||24|
|1200 / 156||1296||BLVT 1200 / 156||25||BLVT 1200 / 84||25|
|1300 / 169||1396||BLVT 1300 / 169||27||BLVT 1300 / 91||27|
|1400 / 182||1496||BLVT 1400 / 182||28||BLVT 1400 / 98||28|
|1500 / 195||1596||BLVT 1500 / 195||30||BLVT 1500 / 105||30|
|1600 / 208||1696||BLVT 1600 / 208||32||BLVT 1600 / 112||32|
|1700 / 221||1796||BLVT 1700 / 221||33||BLVT 1700 / 119||33|
|1800 / 234||1896||BLVT 1800 / 234||35||BLVT 1800 / 126||35|
|1900 / 247||1996||BLVT 1900 / 247||37||BLVT 1900 / 133||37|
|BLPG/BPSG||Operating Instructions: Programming devices for BLVT||-||-||-||-||-||-|
|Muting||Description of the Mutingfunktion of the guard light barriers||-||-||-||-||-||-||-|
|BLVT||Supplementing operating instruction||-||-||-||-||-||-||-|
|BLVT||Dimensional drawings of XLVT 100-1900 in stp,igs,dxf,dwg||ZIP|
|SISTEMA Bibliothek||Fiessler Sistema Library||SISTEMA Bibliothek|