PAC Type 4 GuardShield PAC
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Description
Standard GuardShield PAC
The Allen-Bradley Guardmaster GuardShield Perimeter Access Control (PAC) safety light curtain is a multiple beam, short range (0.3…16 m), Type 4 safety light curtain typically used to provide access detection at machine entry points. It is also possible to use the GuardShield PAC in perimeter guarding applications as an optoelectronic fence as long as the perimeter distance does not exceed the maximum range of 16 meters. Note that when using the GuardShield PAC with corner mirrors for multiple sided guarding, each mirror reduces the maximum scan range of 16 meters by approximately 15%.
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The GuardShield PAC safety light curtain is designed for whole body detection and is currently offered in two configurations: two beams at 500 mm spacing and three beams at 400 mm spacing.
GuardShield PAC with Integrated Laser Alignment System
The GuardShield PAC light curtains are offered with an integrated laser alignment system consisting of a Class 1, eye safe, constantly powered laser located in the top of the GuardShield PAC transmitter and at the bottom of the GuardShield PAC receiver. There are targets located across from each laser which help facilitate alignment of the light curtain when the laser is emitting visible light.
Each laser emits a low level of visible light. Simply placing a finger or opaque object in front of the laser reflects the laser light back to a photo sensor. This photo sensor causes the laser to switch state from a barely visible low level of emission to a higher level of emission of visible light. Interrupting the visible light below the finger symbol will cause the laser to change state back to a low level of light emission. The visible light will also change to a low level after five minutes.
The Integrated Laser Alignment system also quickly helps with the re-alignment of pairs when units are knocked out of alignment during the course of the work process or when corner mirrors are used.
ArmorBlock® Guard I/O Connectivity
The GuardShield PAC light curtains are also offered with the integrated laser alignment system and connectivity to ArmorBlock Guard I/O. The receiver of these light curtains has a five-pin M12 quick disconnect connector wired to allow connection to the 1732DS ArmorBlock I/O module. This connectivity of the GuardShield PAC receiver allows the GuardShield’s OSSDs to operate over a DeviceNet Safe network.
This version of the GuardShield has limited configurability, i.e., only beam coding can be configured by setting the appropriate DIP switches and performing the teach function. EDM, Start/Restart interlock as well as the auxiliary output are not available in these GuardShield PAC models.
The ArmorBlock Guard I/O can be used with any safety controller that communicates on DeviceNet using CIP Safety for the control and monitoring of safety circuits. ArmorBlock Guard I/O detects circuit failures at each I/O point while providing detailed diagnostics directly to the controller. With CIP Safety, you can easily integrate safety and standard control systems by using safety and standard messages on the same wire.
The 1732DS ArmorBlock Guard I/O family consists of 24V DC digital I/O modules that communicate on DeviceNet networks.
Features
- Beam coding
- External device monitoring (EDM)
- Machine test signal
- Start/restart interlock
Industries
- Material handling
- Packaging equipment
- Automotive
- Robot cells
Specifications
| Safety Ratings | |
| Standards | IEC/EN 61496 Parts 1 & 2, UL 61496 Parts 1 & 2, UL 1998 |
| Safety Classification | Type 4 per IEC/EN61496. Category 4 device per EN 954-1, SIL 3 per IEC 61508, PLe per EN/ISO 13849 |
| Certifications | UL 61496, UL 1998, cULus Listed, TÜV and CE marked for all applicable directives |
| Power Supply | |
| Input Power, Max. | 24V DC ±20% |
| Maximum Residual Ripple | 0.05 Vss |
| Power Consumption | 400 mA (no load) |
| Outputs | |
| Safety Outputs | 2 x PNP, 0.5 A, short circuit protected |
| Non-Safety Outputs | 1 x PNP 0.5 A max. |
| Output Voltage, Min. | Uv - 2V |
| Switching Current @ Voltage, Min. | 500 mA @ 24V DC |
| Operating Characteristics | |
| Response Time | 20 ms, 30 ms with beam coding activated |
| Status Indicators | On-state, off-state, alignment, interlock |
| Protected Height—mm (in) | 3 beam = 820 (32.3); 2 beam = 520 (20.4) |
| Scanning Range | 16 m (52.5 ft) |
| Synchronization | Optical, without separate synchronization channel. First beam adjacent to LEDs. |
| Wavelength | 870 nm |
| Environmental | |
| Enclosure Type Rating | IP65 |
| Relative Humidity | 15%...95% (noncondensing) |
| Operating Temperature [C (F)] | -10…55° (14…131°) |
| Vibration | IEC60068-2-6, frequency 10…55 Hz Amplitude: 0.35 mm (0.01 in) |
| Shock | IEC60068-2-29 acceleration 10 g, pulse duration 16 ms |
| Physical Characteristics | |
| Mounting | End-cap mounting brackets |
| Weight | Varies by Cat. No. |
| Housing Cross Section | 40 mm x 50 mm (1.57 in x 1.96 in) |
| Connection Type | Transmitter: 4-pin micro QD (M12) Receiver: 8-pin micro QD (M12) |
| Cable Length | 30 m (100 ft) max. |
Product Selection
PAC Safety Light Curtains—Standard
The Allen-Bradley Guardmaster GuardShield PAC safety light curtains are ordered as a pair—transmitter and receiver—and are shipped under one Cat. No. After selecting the appropriate Cat. No. ensure that the required interfaces and accessories are ordered.
| Protected Height [mm (in.)] | Beam Spacing | Number of Beams | Cat. No. |
| 520 (20.4) | 500 mm (19.7 in.) | 2 | 440L-P4A2500YD |
| 820 (32.3) | 400 mm (15.7 in.) | 3 | 440L-P4A3400YD |
| Note: The GuardShield transmitter requires a 4-pin cable and the receiver requires an 8-pin cable. Note: To select a transmitter or receiver substitute the "P" in the above cat. nos. with a "T" for a transmitter or an "R" for a receiver. |
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GuardShield PAC with Integrated Laser Alignment
| Protected Height [mm (in.)] | Beam Spacing | Number of Beams | Cat. No. |
| 520 (20.4) | 500 mm (19.7 in.) | 2 | 440L-P4AL2500YD |
| 820 (32.3) | 400 mm (15.7 in.) | 3 | 440L-P4AL3400YD |
| Note: The GuardShield transmitter requires a 4-pin cable and the receiver requires an 8-pin cable. Note: GuardShields are sold in pairs. To select a transmitter or receiver, replace the "P" in the cat. no. with a "T" for a transmitter or an "R" for a receiver. |
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GuardShield PAC with Integrated Laser Alignment and I/O Connectivity
| Protected Height [mm (in.)] | Beam Spacing | Number of Beams | Cat. No. |
| 520 (20.4) | 500 mm (19.7 in.) | 2 | 440L-P4AL2500YA |
| 820 (32.3) | 400 mm (15.7 in.) | 3 | 440L-P4AL3400YA |
| Note: GuardShields are sold in pairs. To select a transmitter or receiver, replace the "P" in the cat. no. with an "R" for a receiver. PAC with integrated laser alignment and I/O connectivity uses a standard transmitter. To order a transmitter, replace the "P" with a "T" and the last "A" with a "D" (example: 440L-T2500YD). | |||
Recommended Logic Interfaces
| Description | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. Page No. | Cat. No. |
| Single-Function Safety Relays for 2 N.C. Contact Switch | |||||||
| MSR127RP | 3 N.O. | 1 N.C. | Removable (Screw) | Monitored Manual | 24V AC/DC | MSR127RP/TP | 440R-N23135 |
| MSR127TP | 3 N.O. | 1 N.C. | Removable (Screw) | Auto./Manual | 24V AC/DC | MSR127RP/TP | 440R-N23132 |
| MSR126 | 2 N.O. | None | Fixed | Auto./Manual | 24V AC/DC | MSR126R/T | 440R-N23117 |
| Modular Safety Relays | |||||||
| MSR210P Base 2 N.C. only |
2 N.O. | 1 N.C. and 2 PNP Solid State | Removable | Auto./Manual or Monitored Manual | 24V DC from the base unit | MSR210P | 440R-H23176 |
| MSR220 Input Module | — | — | Removable | — | 24V DC | MSR220P | 440R-H23178 |
| MSR310P Base | MSR300 Series Output Modules | 3 PNP Solid State | Removable | Auto./Manual Monitored Manual | 24V DC | MSR310P | 440R-W23219 |
| MSR320P Input Module | — | 2 PNP Solid State | Removable | — | 24V DC from the base unit | MSR320P | 440R-W23218 |
| Muting Modules | |||||||
| MSR22LM | 2 N.O. | 1 N.C. | Removable | Auto./Manual | 24V DC | MSR22LM | 440R-P23071 |
| MSR42 (requires optical interface to configure 445L-AF6150) |
2 PNP | 2 PNP, configurable | Removable | Auto./manual or manual monitored | 24V DC | MSR42 | 440R-P226AGS-NNR |
Cordsets—Two Required (one for transmitter and one for receiver)
| Female Connector (Sensor End) | Cable | Wire Rating | Length [m (ft)] | Cat. No. | |
| Face View of Female | Connector Style | Pin/Wire Color | |||
| Transmitter | |||||
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Straight Female | 1 Brown 2 White 3 Blue 4 Black |
22 AWG 300V 4 A |
2 (6.56) | 889D-F4AC-2 |
| 5 (16.4) | 889D-F4AC-5 | ||||
| 10 (32.8) | 889D-F4AC-10 | ||||
| 15 (49.2) | 889D-F4AC-15 | ||||
| 20 (65.6) | 889D-F4AC-20 | ||||
| 30 (98.4) | 889D-F4AC-30 | ||||
| Receiver | |||||
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Straight Female | 1 White 2 Brown 3 Green 4 Yellow 5 Grey 6 Pink 7 Blue 8 Red |
24 AWG 30V AC/36V DC 1.5 A |
2 (6.56) | 889D-F8AB-2 |
| 5 (16.4) | 889D-F8AB-5 | ||||
| 10 (32.8) | 889D-F8AB-10 | ||||
| 15 (49.2) | 889D-F8AB-15 | ||||
| 20 (65.6) | 889D-F8AB-20 | ||||
| 30 (98.4) | 889D-F8AB-30 | ||||
Cordsets Approximate Dimensions [mm (in.)]
Dimensions are not intended to be used for installation purposes.
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| Straight Female |
Accessories
Muting Sensors
| Sensor Type | Connection Location | Type | Cat. No. |
| Retroreflective | Connected directly to muting module | Dark Switching | 42GRU-9000-QD |
| Transmitted Beam | Receiver (connected directly to the muting module) | 42GRR-9000-QD¬ | |
| Retroreflective | Connected directly to muting module | 42GRU-9000-QD¬ | |
| Polarized Retroreflective | Three inch standard reflector | 92-39 | |
| Polarized Retroreflective | Connected directly to muting module | 42GRU-9200-QD¬ | |
| Polarized Retroreflective | Three inch standard reflector | 92-39 | |
| Mechanical Limit Switch | Connected directly to muting module (operating lever must be selected separately) | 802M-NX10¬ | |
| Muting lamp |
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Two cat. nos. make this assembly. | 855E-24TL7 |
| 855E-BVMC | |||
| ¬ Use with 4-pin, DC Micro cordset when connecting to muting module (5 m length shown). 1 m, 2 m, 3 m, and 5 m lengths available. | 889D-F4AC-5 | ||
Accessories—Optional
| Description | Cat. No. | |
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Steel L-shaped end cap mounting bracket (4 per package) Note: 4 brackets supplied with each GuardShield pair. |
440L-AF6101 (1 package per system) |
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Power Supply: Output 24V DC, 3 A, 72 W | 1606-XLP72E |
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Laser alignment tool (standard GuardShield) | 440L-ALAT |
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GuardShield laser alignment tool bracket | 440L-AF6109 |
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Mounting stand | 440L-AMSTD |
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GuardShield weld shield pair—3 beam | 440L-AGWS0960 |
| GuardShield weld shield pair—2 beam | 440L-AGWS0640 | |
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Vertical shock mount kit | 440L-AF6120 |
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GuardShield washdown enclosure kit—2 beam PAC | 440L-AGST640 |
| GuardShield washdown enclosure kit—3 beam PAC | 440L-AGST960 | |
| Note: The GuardShield washdown enclosure kits will not accommodate the GuardShield with Integrated Laser and with Inegrated Laser and ArmorBlock Guard I/O connectivity. | ||
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.
| GuardShield Light Curtain Cat. No. | Narrow Mirror Short-Range 0…4 m | Cat. No. | Wide Mirror Long-Range 4…15 m | Cat. No. |
| 440L-P4A2500YD |
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440L-AM0750750 |
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440L-AM1250750 |
| 440L-P4A3400YD | 440L-AM0751050 | 440L-AM1251050 | ||
Approximate Dimensions
Dimensions are shown in mm (in.). Dimensions are not intended to be used for installation purposes.
Safety Light Curtain
440L-P4A3400YD
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440L-P4AL3400YD
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440L-P4A2500YD
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440L-P4AL2500YD
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| Cat. No. | A Protective Height [mm] |
B Mounting Value [mm] |
C Total Length [mm] |
| 440L-P4A3400YD | 820 ±0.5 | 1076 | 1112 ±1.5 |
| 440L-P4A2500YD | 520 ±0.5 | 756 | 792 ±1.5 |
| 440L-P4AL3400Y¬ | 820 ±0.5 | — | — |
| 440L-P4AL2500Y¬ | 520 ±0.5 | — | — |
| ¬ Replace with "D" for standard 8-pin M12 or "A" for 5-pin M12 for ArmorBlock Guard I/O connectivity. | |||
Wiring Diagram for Connection of OSSDs Directly to Contactors (FSDs)
Wiring diagram is not intended to be used for installation purposes.
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¬ Auxiliary output is nonsafety. Can be connected to a lamp, motor or status to a PLC.
| K1, K2 | Safety relay or safety contactor for OSSD 1 and OSSD 2 connection | |
| S1 | Switch for external system test (optional) | |
| S2 | Switch for reset of light curtain from start/restart interlock |
Wiring Diagram for Connection of OSSDs Directly to a Safety Relay Module
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