Banner MINI-ARRAY BASIC User manual

MINI-ARRAY®BASIC Two-Piece Measuring
Light Curtain
Instruction Manual
Original Instructions
220750 Rev. B
25 October 2021
©Banner Engineering Corp. All rights reserved
220750

Contents
1 Product Description ..................................................................................................................................................... 3
1.1 Models ..............................................................................................................................................................................................3
2 System Overview ........................................................................................................................................................... 4
2.1 System Features .............................................................................................................................................................................4
2.2 Easy-to-Understand Diagnostic LEDs .............................................................................................................................................5
2.3 Two Solid-State Outputs ................................................................................................................................................................. 6
2.4 EIA-485 Interface ............................................................................................................................................................................ 6
2.5 Sensing Scan Time ..........................................................................................................................................................................6
2.6 Supplied System Software ..............................................................................................................................................................6
2.7 System Self-Diagnostics ................................................................................................................................................................. 6
2.8 Marginal Alignment/Dirty Lens Detection .........................................................................................................................................7
2.9 Fault Detection and Sensor Degradation Operation ........................................................................................................................ 7
3 Installation ......................................................................................................................................................................8
3.1 Emitter and Receiver Mounting ........................................................................................................................................................8
3.2 Emitter and Receiver Wiring ........................................................................................................................................................... 9
3.3 Optically Align the Components .....................................................................................................................................................10
4 Auto Streaming Control ............................................................................................................................................. 11
5 Specifications .............................................................................................................................................................. 12
5.1 Emitter and Receiver Mounting Dimensions ..................................................................................................................................12
6 Accessories ..................................................................................................................................................................14
6.1 Cordsets .........................................................................................................................................................................................14
6.2 Anti-Vibration Mounting Kits ..........................................................................................................................................................14
6.3 Mounting Bracket Kit (Optional) ..................................................................................................................................................... 15
7 Product Support and Maintenance ........................................................................................................................... 16
7.1 Troubleshooting ............................................................................................................................................................................. 16
7.2 Contact Us ..................................................................................................................................................................................... 16
7.3 Banner Engineering Corp Limited Warranty ................................................................................................................................. 16
MINI-ARRAY® BASIC Two-Piece Measuring Light Curtain

1 Product Description
MINI-ARRAY BASIC Two-Piece Measuring Light Curtain configured for material handling and logistics applications with auto-
stream serial output, two discrete outputs, and EIA-485 communication
• Simple two-piece measuring light curtain for profiling and object detection, tailored for material handling and logistics
applications
• Diagnostic LEDs provide a simple means of monitoring emitter and receiver conditions and diminished performance
from dirty lenses
• Models available with array lengths from 150 mm (6 in) to 1210 mm (4.7 ft) in 150 mm (6 in) increments
• Beam spacing 19.1 mm (0.75 in) and a maximum range of 2 meters
• Two discrete outputs plus auto-stream EIA-485 serial communication that automatically streams data without a
command
• Configurable via the EIA-485 serial interface and the Banner Sensors GUI software within 5 seconds after the power
supply starts
• Alarm output signals dirty lens and system fault conditions
• EIA-485 serial communication enables a computer to process scan data
WARNING:
•Do not use this device for personnel protection
• Using this device for personnel protection could result in serious injury or death.
• This device does not include the self-checking redundant circuitry necessary to allow its use in
personnel safety applications. A device failure or malfunction can cause either an energized (on)
or de-energized (off) output condition.
1.1 Models
Emitter Model Receiver Model Array Length (Y) Overall Length Total
Beams
Sensor Scan Time (ms)
Interlaced
Scan
Straight
Scan 1
MBE616Q Emitter MBR616PX485SQ 143 mm (5.62 in) 251 mm (9.9 in) 8 1.4 0.9
MBE1216Q Emitter MBR1216PX485SQ 295 mm (11.62 in) 403 mm (15.9 in) 16 2.5 1.5
MBE1816Q Emitter MBR1816PX485SQ 448 mm (17.62 in) 555 mm (21.9 in) 24 3.6 2.0
MBE2416Q Emitter MBR2416PX485SQ 600 mm (23.62 in) 708 mm (27.9 in) 32 4.8 2.6
MBE3016Q Emitter MBR3016PX485SQ 752 mm (29.62 in) 860 mm (33.9 in) 40 5.9 3.2
MBE3616Q Emitter MBR3616PX485SQ 905 mm (35.62 in) 1013 mm (39.9 in) 48 7.0 3.7
MBE4216Q Emitter MBR4216PX485SQ 1057 mm (41.62 in) 1165 mm (45.9 in) 56 8.1 4.3
MBE4816Q Emitter MBR4816PX485SQ 1210 mm (47.62 in) 1318 mm (51.9 in) 64 9.2 4.8
The receiver's two discrete outputs are set to PNP by default, but can also be configured to NPN.
1Worst-case response time is twice the scan time.
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2 System Overview
The Banner MINI-ARRAY Basic Two-Piece Measuring Light Curtain is customized for material handling and logistics
applications. It incorporates the popular two-stick MINI-ARRAY emitter and receiver design and ease of use, while simplifying
installation. This two-piece system does not require a separate controller.
A typical system consists of four components:
• Emitter
• Receiver
• Two interconnecting cables
Models are available in array lengths from 150 mm (6 in) to 1210 mm (4.7 ft) in 150 mm(6 in) increments. Beam spacing is
19.1 mm (0.75 inch). Sensing range is 2 m (6.5 feet).
2.1 System Features
Built-in features simplify the operation of the MINI-ARRAY Basic Two-Piece Measuring Light Curtain system, which is
customized to specifically address the demanding requirements needed to be used in the material handling and logistic
environments for high-speed detection.
The system has an auto-stream serial output feature (see Auto Streaming Control on p. 11). By default, this automatically
sends FBB (First Beam Blocked) and TBB (Total Beams Blocked) measurement data over the EIA-485 interface. The system
is pre-configured for a straight scan optical pattern where each emitter channel fires only at its opposing receiver element
(see Figure 2 on p. 5).
The system can also be configured for an interlaced optical pattern. An interlaced sensor scan involves individually enabling
each emitter channel twice. In effect, each emitter channel fires at both its opposing receiver element, and at the one
beneath it. The result is an interlaced optical detection pattern (see Figure 3 on p. 5). This pattern can better detect
objects within the middle third of the sensing area.
Several important features have been built into the MINI-ARRAY Basic system:
• Easy-to-understand diagnostic LEDs
• Two discrete outputs
• EIA-485 serial communication
• Self-diagnostics to detect dirty lens and faulty or degraded sensor operation conditions
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Figure 1. System features
Green Alignment LED
Red Blocked LED
Amber Marginal
Alignment LED
Red
Operational
LED
Emitter Receiver
Figure 2. Straight scan
Emitter
Receiver
Figure 3. Interlaced scan
Emitter
Receiver
Interlaced Scan improves the optical
resolution in the middle one-third of
the scanning range.
2.2 Easy-to-Understand Diagnostic LEDs
The system provides simple, straightforward indications of sensor performance. See Troubleshooting on p. 16 for a more
detailed guide to troubleshooting system status using the diagnostic LEDs.
Table 1: Emitter: 1 Red Diagnostic LED
LED Condition ON Solid OFF Flashing (5x per second) Flashing (1x per second)
Red Sensor is functioning
normally
No power to
emitter
Receiver is removed from the
system
One or more emitter optical
channel(s) not working properly
Table 2: Receiver: 3 Diagnostic LEDs (Green, Red, and Amber)
The combined status of the Green and Red LEDs provides a simple sensor alignment process. The Amber LED signals a
dirty lens or degraded sensor condition.
LED Condition ON Solid OFF Flashing (2 Hz)
Green Light curtain is unobstructed Light curtain is obstructed Non-functioning emitter
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LED Condition ON Solid OFF Flashing (2 Hz)
Red Light curtain is obstructed Light curtain is unobstructed Non-functioning emitter
Amber
Dirty lens (whether the light curtain is blocked
or clear); remains ON until the receiver detects
proper light signal strength
n/a Light signal of one of more beam(s)
is degraded
2.3 Two Solid-State Outputs
The receiver has two discrete outputs (Output #1 and Output #2). Each output is independent and can be configured for
either NPN or PNP operation. The sensor is factory-configured for PNP outputs. These outputs are rated to 150 mA and are
short circuit protected.
2.4 EIA-485 Interface
The receiver has a serial EIA-485 interface to provide sensor measurements. By default, the MINI-ARRAY Basic will auto
stream FBB (First Beam Blocked) and TBB (Total Beams Blocked). This can be modified using the Banner Sensor
Configuration Software.
2.5 Sensing Scan Time
Scan time is a function of the sensor length (total number of beams considered) and the scan mode (interlaced or straight
scan). See Models on p. 3.
2.6 Supplied System Software
The device’s configuration can be modified by connecting to the Banner Sensor Configuration Software via an appropriate
EIA-485 interface (consult a Banner Engineering representative for more information). Settings include measurement mode,
discrete output configuration, scan type, blanking and more. The software also enables the user to check sensor alignment,
obtain sensor readings, and verify sensor status.
After the desired configuration has been written to the receiver, the receiver stores the settings in non-volatile memory.
Note: Connect the sensor to the Sensor Configuration Software within 5 seconds after making a proper
connection to an active power supply. If the sensor is not connected to the configuration software within 5
seconds after applying power, the sensor goes into auto stream mode.
2.7 System Self-Diagnostics
Output #2 can be configured for Alarm/Health Status using Banner's Sensor Configuration Software. This enables advanced
electronic and signal processing to allow the receiver to continually monitor and evaluate light signal quality and alert the user
to light signal degradation or sensor faults. The sensor can detect marginal alignment, permanently blocked channels, a
faulty emitter element, or a non-functioning emitter.
The receiver was designed to detect system failures and remain operational. Potential problems include a dirty lens that
completely blocks the optical light signal or a light signal failure (caused by either the emitter or receiver). Although sensor
failures are rare, the Two-Piece MINI-ARRAY Basic is designed to continue to function while warning the user of fault
conditions. This minimizes system down time and provides advanced notice that system maintenance or repairs are required.
Whenever the receiver detects proper operation, Output #2 is active (ON, a healthy condition). When the sensor detects a
system problem (either a sensor fault or a degraded signal), Output #2 is inactive (turns OFF, an alarm condition).
A system problem is acknowledged in two ways:
1. The condition of the diagnostic LEDs.
2. Output #2 is inactive (OFF), when Output #2 is configured for Alarm/Health Status.
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2.8 Marginal Alignment/Dirty Lens Detection
When the received light signal drops below a predetermined threshold, the receiver recognizes a marginal alignment or dirty
lens condition. The dirty lens threshold is equivalent to three times the minimum light signal necessary for detection.
After this condition is detected, the receiver alerts the user that the lens surface should be cleaned or re-aligned. The amber
diagnostic LED turns on until the condition is no longer detected (whether the light curtain is blocked or clear). This advance
recognition can be used to initiate a proper maintenance process. When Output #2 is configured for Alarm/Health Status,
Output #2 is inactive (off).
2.9 Fault Detection and Sensor Degradation Operation
If the receiver detects a permanently blocked channel, such as from a failed LED in the emitter, the amber diagnostic LED
flashes at 2 Hz and the device enters Sensor Degradation mode. If Output #2 is configured for Alarm/Health Status, Output
#2 is inactive (OFF).
After the receiver detects a permanently blocked optical channel, the receiver effectively ignores the degraded optical
channel while continuing to operate. This allows the sensor to continue working and, for many instances, provide reliable
service and advanced notice of a fault.
Emitter faults: The receiver can detect a non-functioning emitter (possibly caused by a disconnected cable). The receiver’s
green and red diagnostic LEDs flash at 2 Hz to signal this emitter condition.
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3 Installation
3.1 Emitter and Receiver Mounting
Banner MINI-ARRAY BASIC emitters and receivers are small, lightweight, and easy to mount. Two M6 × 1 T-nuts are
included for mounting, which are assembled in the housing. The mounting brackets are optional for mounting and allow ± 30
degrees rotation.
From a common point of reference, make measurements to position the emitter and receiver in the same plane with their
midpoints directly opposite each other. Mount the emitter and receiver T-nuts using the M6 screw and washer.
Although the internal circuitry of the emitter and receiver can withstand heavy impulse forces, vibration isolators can be used
to dampen impulse forces and prevent possible damage from resonant vibration of the emitter or receiver assembly. Two
different Anti-Vibration Mounting Kits are available from Banner. See Accessories on p. 14.
Figure 4. MINI-ARRAY emitter and receiver mounting hardware
Emitter
or
Reciever
M6 screw with
flat washer
1. Mount the emitter and receiver in their mounting T-nuts (see Figure 4 on p. 8).
2. Position the red lenses of the two units directly facing each other. The connector ends of both sensors must point in
the same direction.
3. Measure from one or more reference planes (such as the floor) to the same points on the emitter and receiver to
verify their mechanical alignment. If the sensors are positioned exactly vertical or exactly horizontal, a carpenter’s
level may be useful for checking alignment. Extending a straight-edge or a string between the sensors may help with
positioning.
4. Also check by eye for line-of-sight alignment.
5. Make any necessary final mechanical adjustments, and hand-tighten the bracket hardware.
6. Prepare the two integral 8-pin M12 male quick disconnect cables.
7. Connect the shielded cables to the emitter and receiver. Follow the local wiring code for low-voltage DC control
cables. The same cable type is used for both emitter and receiver (two cables required per system).
8. Route the cables to the terminal location.
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3.2 Emitter and Receiver Wiring
Connect the emitter and receiver cables as shown.
Figure 5. NPN Wiring Diagram
bn
bu
pk
wh
gy
ye
rd
rd
gn
gn
bare
bn
bu
pk
wh
gy
ye
+
–
16–30 V dc
P.S. V +
P.S. V –
SYNC +
SYNC –
OUT1
OUT2/ALARM
EIA 485 +
EIA 485 –
SHIELD SHIELD
P.S. V+
P.S. V–
SYNC +
SYNC –
Receiver Emitter
Load 1
Load 2
DC Power
Supply
to external
EIA-485
device terminal
no
connection
Figure 6. PNP Wiring Diagram
bn
bu
pk
wh
gy
ye
rd
rd
gn
gn
bare
bn
bu
pk
wh
gy
ye
+
–
16–30 V dc
P.S. V +
P.S. V –
SYNC +
SYNC –
OUT1
OUT2/ALARM
EIA 485 +
EIA 485 –
SHIELD SHIELD
P.S. V+
P.S. V–
SYNC +
SYNC –
Receiver Emitter
Load 1
Load 2
DC Power
Supply
to external
EIA-485
device terminal
no
connection
Receiver Output 1: (OUT1) is an open-collector transistor switch rated at 30 V DC maximum, 150 mA maximum. It is
protected against overload and short circuits.
Receiver Output 2/Alarm: (OUT2/ALARM) is an open-collector transistor switch rated at 30 V DC maximum, 150 mA
maximum. It is protected against overload and short circuits.
Both outputs can be configured as NPN (current sinking) or PNP (current sourcing).
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3.3 Optically Align the Components
Follow these steps to optically align the light curtain emitter and receiver.
1. Verify the light curtain components are mechanical aligned and the cables are connected.
2. Apply 16 V DC to 30 V DC power to the sensor.
3. Rotate the emitter and/or receiver as necessary to align them.
4. Align the emitter and receiver until the receiver’s green LED is on and the amber and red LED are off.
Note: By default, the MINI-ARRAY Basic sets the gain level on power up. If the sticks are properly aligned
but have marginal signal, cycle the power to set the gain settings.
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