SafeShield™ Light Curtains
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Description
SafeShield safety light curtains are active opto-electronic protection devices (AOPD) with resolutions of 14 mm (0.55 in) or 30 mm (1.18 in).
Allen-Bradley Guardmaster SafeShield safety light curtains are selfchecking and are a Type 4 safety device. They have been designed for industrial applications and are characterized by:
- Compact size
- Sturdy modular construction
- Universal application possibilities
- Simple installation
- Software configured
Features
- Control-reliable solid-state outputs
- State of the art microprocessor technology with custom-designed ASICs (Application Specific Integrated Circuits)
- Easy assembly and alignment
- Quick-disconnect M23 style connectors
- Long scanning range and high resolution
- Small housing cross section: 40 mm x 48 mm (1.57 in x 1.77 in)
- Fast response time
- Possibility to cascade up to three sensors (to prevent personnel from standing between protective field and the point of operation)
- Construction in compliance with EN 61496 Parts 1 & 2
Type 4 (self-checking)
- Resolution (object sensitivity) 14 mm/30 mm
- The optical axis (center of window) is marked on the end cap.
- Fixed blanking, floating blanking
- Reduced resolution, beam coding
Specifications
| Safety Ratings | |
| Standards | EN 61496 Parts 1 & 2 |
| Safety Classification | Type 4 (self-checking) per EN 61496 |
| Certifications | CE Marked for all applicable directives, cULus, and TÜV |
| Power Supply | |
| Input Power, Max. | 24V DC ±20% |
| Maximum Residual Ripple | — |
| Power Consumption | 0.9…2 Amps (no-load) |
| Outputs | |
| Safety Outputs | 2 OSSD, 0.5 A, short-circuit protection |
| Non-Safety Outputs | NA |
| Output Voltage, Min. | Uv - 2V |
| Switching Current @ Voltage, Min. | 500 mA @ 24V DC |
| Operating Characteristics | |
| Response Time | Dependent on the number of beams |
| Status Indicators | — |
| Protected Height—mm (in) | 300…1800 (12…72) |
| Resolution [mm (in.)] | 14 (0.55) or 30 (1.18) |
| Scanning Range/Resolution | 0…2 m or 5 m, 2…6 m/14 mm 0…6 m or 5…19 m/30 mm |
| Synchronization | Optical, without separate synchronization channel |
| Wavelength | 940 nm |
| Environmental | |
| Enclosure Type Rating | IP 65 |
| Relative Humidity | 15...95% noncondensing |
| Operating Temperature [C (F)] | 0…55° (32…131°) |
| Vibration | 5 g, 10…55 Hz per IEC 68-2-6 |
| Shock | 10 g, 16 ms per IEC 68-2-29 |
| Physical Characteristics | |
| Mounting | End cap or side mount brackets ordered separately |
| Weight | Varies by protective height |
| Housing Cross Section | 40 mm x 48 mm (1.57 in x 1.77 in) |
| Connection Type | 12-pin metal M23 style on transmitter and receiver |
| Cable Length | 60 m (196.8 ft) max. |
Product Selection—Standard System
1. Safety Light Curtains—Standard System
The Allen-Bradley Guardmaster SafeShield safety light curtains are ordered as pairs—transmitter and receiver—and shipped under one part number. After selecting the appropriate light curtain pair, ensure that required interfaces and accessories are ordered as well.
| Protected Height [mm (in.)] | Resolution [mm (in.)] | Number of Beams | Cat. No. | Protected Height [mm (in.)] | Resolution [mm (in.)] | Number of Beams | Cat. No. |
| 300 (12) | 14 (0.55) | 40 | 442L-PA40314CBCD | 1200 (48) | 14 (0.55) | 160 | 442L-PA41214CBCD |
| 30 (1.18) | 15 | 442L-PA40330CBCD | 30 (1.18) | 60 | 442L-PA41230CBCD | ||
| 450 (18) | 14 (0.55) | 60 | 442L-PA40414CBCD | 1350 (54) | 14 (0.55) | 180 | 442L-PA41314CBCD |
| 30 (1.18) | 23 | 442L-PA40430CBCD | 30 (1.18) | 68 | 442L-PA41330CBCD | ||
| 600 (24) | 14 (0.55) | 80 | 442L-PA40614CBCD | 1500 (60) | 14 (0.55) | 200 | 442L-PA41514CBCD |
| 30 (1.18) | 30 | 442L-PA40630CBCD | 30 (1.18) | 75 | 442L-PA41530CBCD | ||
| 750 (30) | 14 (0.55) | 100 | 442L-PA40714CBCD | 1650 (66) | 14 (0.55) | 220 | 442L-PA41614CBCD |
| 30 (1.18) | 38 | 442L-PA40730CBCD | 30 (1.18) | 83 | 442L-PA41630CBCD | ||
| 900 (36) | 14 (0.55) | 120 | 442L-PA40914CBCD | 1800 (72) | 14 (0.55) | 240 | 442L-PA41814CBCD |
| 30 (1.18) | 45 | 442L-PA40930CBCD | 30 (1.18) | 90 | 442L-PA41830CBCD | ||
| 1050 (42) | 14 (0.55) | 140 | 442L-PA41014CBCD | ||||
| 30 (1.18) | 53 | 442L-PA41030CBCD | |||||
| Please order Host devices intended for daisy-chain applications (host sensor) separately. See "Cascadable Products" for more information. | |||||||
2. Cordsets—Two Required (one for transmitter and one for receiver)
Approximate Dimensions—mm (inches)
Dimensions are not intended to be used for installation purposes.
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Product Selection
3. Safety Relay Interfaces—Optional
Product Selection (continued)
4. Accessories—Optional
5. Corner Mirror for Multi-Sided Guarding
Specially constructed glass mirrors for 2 and 3 sided safeguarding applications.
Note: Each mirror reduces maximum scan range by 10% per mirror.
Note: Each corner mirror is supplied with two end-cap mounting brackets.
Product Selection (continued)
6. SafeShield Weld Shields
Notes:
- Two additional front screens (weld shields) are available for each cat. no.
- The additional front screen fits both on the sender and on the receiver.
- The additional front screen may be used only if the curved enclosure side is accessible.
- An additional front screen reduces the scanning range of the system by 8%. If sender and receiver each use an additional front screen, the maximum scanning range will be reduced by 16%.
| Protective Field Height—mm (in) | Cat. No. | Protective Field Height—mm (in) | Cat. No. |
| 300 | 442L-AWS300 | 1200 | 442L-AWS1200 |
| 450 | 442L-AWS450 | 1350 | 442L-AWS1350 |
| 600 | 442L-AWS600 | 1500 | 442L-AWS1500 |
| 750 | 442L-AWS750 | 1650 | 442L-AWS1650 |
| 900 | 442L-AWS900 | 1800 | 442L-AWS1800 |
| 1050 | 442L-AWS1050 | ||
7. Safety Light Curtains—Cascadable System
The Allen-Bradley Guardmaster SafeShield cascadable family of safety light curtains are ordered as a pair—transmitter and receiver—and is shipped under one catalog number. After selecting the appropriate light curtain pair, ensure that required interfaces and accessories are ordered as well.
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Cascadable devices come with two M23 connectors; a system connector on one end of the device to connect the light curtain to your safety control system and an extension connector on the other end of the device to connect to the next light curtain segment. The maximum number of segments is three.
The first segment of a two-cascaded system and the first and second segment of a three-cascaded system must always be a cascadable device (with a connector on both ends). This allows you to connect additional segments to the system (maximum of three segments). The last segment, which is either the second segment of a two-cascaded system or the third segment of a three-cascaded can be a standard light curtain system ordered on Product Selection which would only have a connector on one end. The maximum number of beams of all segments cannot exceed 480 beams.
Resolution can be mixed between segments. For example, the first segment could be a 14 mm resolution and the second segment could be a 30 mm resolution.
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ATTENTION: When mixing resolution of a cascaded system, ensure the proper safety distance calculations have been completed with the largest resolution. |
| Protected Height [mm (in.)] | Resolution—mm/Beams | Cat. No. | Protected Height [mm (in.)] | Resolution—mm/Beams | Cat. No. |
| 300 (12) | 14/40 | 442L-PA40314DBCD | 1200 (48) | 14/160 | 442L-PA41214DBCD |
| 30/15 | 442L-PA40330DBCD | 30/60 | 442L-PA41230DBCD | ||
| 450 (18) | 14/60 | 442L-PA40414DBCD | 1350 (54) | 14/180 | 442L-PA41314DBCD |
| 30/23 | 442L-PA40430DBCD | 30/68 | 442L-PA41330DBCD | ||
| 600 (24) | 14/80 | 442L-PA40614DBCD | 1500 (60) | 14/200 | 442L-PA41514DBCD |
| 30/30 | 442L-PA40630DBCD | 30/75 | 442L-PA41530DBCD | ||
| 750 (30) | 14/100 | 442L-PA40714DBCD | 1650 (66) | 14/220 | 442L-PA41614DBCD |
| 30/38 | 442L-PA40730DBCD | 30/83 | 442L-PA41630DBCD | ||
| 900 (36) | 14/120 | 442L-PA40914DBCD | 1800 (72) | 14/240 | 442L-PA41814DBCD |
| 30/45 | 442L-PA40930DBCD | 30/90 | 442L-PA41830DBCD | ||
| 1050 (42) | 14/140 | 442L-PA41014DBCD | |||
| 30/53 | 442L-PA41030DBCD | ||||
| To order controllers, safety relays, and accessories, refer to page 3. Safety Relay Interfaces—Optional. | |||||
Two Patchcords required (one for transmitter and one for receiver) to connect between segments
Approximate Dimensions
Dimensions are shown in mm (in.). Dimensions are not intended to be used for installation purposes.
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SafeShield sender, standard system (not cascadable). Receiver, mirror image
| Protective Field Height S |
Approximate Dimensions—mm (in) | ||
| L1 | L2 | A | |
| 300 (11.8) | 381 (15.0) | 427 (16.8) | 224 (8.8) |
| 450 (17.7) | 532 (20.9) | 578 (22.8) | 374 (14.7) |
| 600 (23.6) | 682 (26.9) | 728 (28.7) | 524 (20.6) |
| 750 (29.5) | 833 (32.8) | 879 (34.6) | 674 (26.5) |
| 900 (35.4) | 984 (38.8) | 1030 (40.6) | 824 (32.4) |
| 1050 (41.3) | 1134 (44.7) | 1180 (46.5) | 974 (38.4) |
| 1200 (47.3) | 1283 (50.5) | 1329 (52.3) | 1124 (44.3) |
| 1350 (53.2) | 1435 (56.5) | 1481 (58.3) | 1274 (50.2) |
| 1500 (59.1) | 1586 (62.4) | 1632 (64.3) | 1424 (56.1) |
| 1650 (65.0) | 1736 (68.4) | 1782 (70.2) | 1574 (62.0) |
| 1800 (70.9) | 1887 (79.3) | 1933 (76.1) | 1724 (67.9) |
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Host—SafeShield sender, cascadable system. Receiver, mirror image
| Protective Field Height S |
Approximate Dimensions—mm (in) | ||
| L1 | L2 | A | |
| 300 (11.8) | 381 (15.0) | 450 (17.7) | 224 (8.8) |
| 450 (17.7) | 532 (20.9) | 600 (23.6) | 374 (14.7) |
| 600 (23.6) | 682 (26.9) | 751 (29.6) | 524 (20.6) |
| 750 (29.5) | 833 (32.8) | 901 (35.5) | 674 (26.5) |
| 900 (35.4) | 984 (38.8) | 1052 (41.4) | 824 (32.4) |
| 1050 (41.3) | 1134 (44.7) | 1202 (47.3) | 974 (38.4) |
| 1200 (47.3) | 1283 (50.5) | 1352 (53.2) | 1124 (44.3) |
| 1350 (53.2) | 1435 (56.5) | 1503 (59.2) | 1274 (50.2) |
| 1500 (59.1) | 1586 (62.4) | 1654 (65.1) | 1424 (56.1) |
| 1650 (65.0) | 1736 (68.4) | 1804 (71.0) | 1574 (62.0) |
| 1800 (70.9) | 1887 (79.3) | 1955 (77.0) | 1724 (67.9) |