For a 0.3 ms response: add suffix “MHS” (eg., SM31EMHS).
P/N 69943 rev. C
6/19/2012
MINI-BEAM dc-Voltage Series
Dimensions
Models with suffix E, EL, EPD, R, RL, RPD, LV, LVAG, LP, D, C, C2, CV, CV2,
CVG, CV2G, CVB, and CV2B
3.2 mm (0.13”)
12.2 mm (0.48”)
Models with suffix DBZ and W
3 mm dia Clearance (2)
Bezel
30.7 mm
(1.21”)
24.1 mm
(0.95”)
3 mm dia Clearance (2)
M18 × 1 × 15 mm Thread
(Mounting nut supplied)
2 m (6.5’) Cable
Mounting peg
(6.3 mm dia × 2.5 mm)
19.1 mm (0.75”)
18.0 mm (0.71”)
39.1 mm
(1.54”)
13.2 mm (0.52”)
27.4 mm (1.08”)
53.3 mm (2.10”)
Models with suffix F, FV, FVB, and FVG
Models with suffix FP, FPB, FPG, and FPH
3.2 mm (0.13”)
12.2 mm (0.48”)
M18 x 1 x 19 mm Thread
(Mounting Nut Supplied)
30.7 mm
(1.21”)
24.1 mm
(0.95”)
3 mm dia clearance (2)
Fiber
Optic
Fitting
Fiber Optic Fitting
2 m (6.5’) Cable
Mounting Peg
(6.3 mm dia × 2.5 mm)
22.3 mm
(0.88”)
57.5 mm (2.27")
31.2 mm (1.23")
19.1 mm
(0.75”)
42.1 mm
(1.66”)
16.2 mm
(0.64”)
QD Models
Sensor Features
Gain (Sensitivity) Adjustment Screw
12 mm Thread
Quick-disconnect
20.0 mm
(0.79”)
Alignment Indicator Device (AID)*
Light/Dark Operate Select Switch
Clockwise: Light Operate
(outputs conduct when sensing
light is received).
Counterclockwise: Dark Operate
(outputs conduct when sensing
light is not received).
*U.S. Patent no. 4356393
2
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P/N 69943 rev. C
MINI-BEAM dc-Voltage Series
Wiring Diagrams
Emitters with Attached Cable
All Other Models with Attached Cable
bn
bn
bu
+
bu
wh
bk
Load
Load
10-30V dc
–
+
10-30V dc
–
Emitters with Quick Disconnect (4-pin Euro-Style)
All Other Models with Quick Disconnect (4-pin Euro-Style)
bn
bu
wh
bk
+
10-30V dc
–
bn
bu
wh
bk
Load
Load
+
10-30V dc
–
The output type for all models is Bipolar NPN/PNP; load 150 mA max., each output.
Sensor Mounting and Alignment
MINI-BEAM sensors perform most reliably if they are properly aligned and securely mounted.
For maximum mechanical stability, mount MINI-BEAM sensors through 18 mm diameter holes by their threaded barrel (where available), or use a mounting bracket. A
complete selection of mounting brackets is available. Visit www.bannerengineering.com or contact the factory for information on mounting options.
Begin with line-of-sight positioning of the MINI-BEAM sensor to its emitter (opposed-mode sensing) or to its target (all other sensing modes). When using a retroreflective
sensor, the target is the retroreflector (“retro target”). For diffuse or convergent sensing modes, the target is the object to be detected.
Apply power to the sensor (and to the emitter, if using the opposed mode). Advance the 15-turn Gain control to maximum (clockwise end of rotation) using a small flat-blade
screwdriver. The Gain control is clutched at both ends to avoid damage and will “free-wheel” when either endpoint is reached.
If the MINI-BEAM sensor is receiving its light signal, the red LED Alignment indicator will be ON and flashing at a rate proportional to the signal strength (faster = more
signal). Move the sensor (or retro target, if applicable) up-down-right-left (including angular rotation) to find the center of the movement zone within which the LED indicator
remains ON. Reducing the Gain setting reduces the size of the movement zone for more precise alignment.
Repeat the alignment motions after each Gain reduction. When optimum alignment is achieved, mount sensor(s) (and the retro target, if applicable) solidly in that position.
Increase the Gain to maximum.
Test the sensor by placing the object to be detected in the sensing position, then removing it. The Alignment indicator LED should come ON when the sensing beam is
established (Light condition) or be ON when the beam is broken (Dark condition). If the Alignment indicator LED stays ON for both sensing conditions, consider the follow-
ing tips for each sensing mode.
Opposed Mode Alignment
“Flooding” occurs when a portion of the sensing beam passes around the object to
be sensed. “Burn-through” occurs when a portion of the emitter’s light energy pass-
es through a thin or translucent object, and is sensed by the receiver.
To correct either problem, do one or more of the following to reduce the light ener-
gy:
Emitter
jec
Ob
t
• Reduce the Gain adjustment on the receiver.
• Add an aperture to one or both lenses. (MINI-BEAM apertures, available from
Banner, fit neatly inside the lens assembly.)
• Intentionally misalign the emitter and receiver.
Note:
Receiver
• Light condition: sensor output is ON when there is no object in beam
• Dark condition: sensor output is ON when there is an object in beam
P/N 69943 rev. C
www.bannerengineering.com - tel: 763-544-3164
3
MINI-BEAM dc-Voltage Series
Diffuse Mode Alignment
If the Alignment LED does not go OFF when the object is removed from the beam,
the sensor is probably detecting light reflected from some background object. To
remedy this problem:
• Reduce the reflectivity of the background by painting the surface(s) flat-black,
scuffing any shiny surface, or drilling a large hole, directly opposite the diffuse
sensor.
• Move the sensor closer to the object to be detected and reduce the Gain ad-
justment. Rule of thumb for diffuse sensing: The distance to the nearest back-
ground object should be at least three times the sensing distance.
Note:
• Light condition: sensor output is ON when there is no object in beam
• Dark condition: sensor output is ON when there is an object in beam
Ob
t
jec
Retroreflective Mode Alignment
tro
Re t
ge
Tar
A highly reflective object may reflect enough light back to a retroreflective sensor to
allow that object to slip through the beam, without being detected. This problem is
called “proxing,” and the following methods may be used to correct it:
• Position the sensor and retro target so the beam will not strike a shiny surface
perpendicular to the sensor lens.
• Reduce the Gain adjustment.
• Add a polarizing filter (for model SM312LV).
Note:
• Light condition: sensor output is ON when there is no object in beam
• Dark condition: sensor output is ON when there is an object in beam
Convergent Mode Alignment
The sensing energy of a convergent mode sensor is concentrated at the specified
focus point. Convergent mode sensors are less sensitive to background reflections,
compared with diffuse mode sensors. However, if background reflections are a
problem:
• Skew the sensor position at a 10° to 25° angle to eliminate direct reflections
from shiny background surfaces.
• Reduce the reflectivity of the background by painting the surface(s) flat-black,
scuffing any shiny surface, or drilling a large hole, directly opposite the sensor.
• Reduce the Gain adjustment.
Note:
• Light condition: sensor output is ON when there is no object in beam
• Dark condition: sensor output is ON when there is an object in beam
w
Lo vity
ti
lec und
f
Re gro
ck
Ba
jec
t
Ob
4
www.bannerengineering.com - tel: 763-544-3164
P/N 69943 rev. C
MINI-BEAM dc-Voltage Series
Glass Fiber Installation
Retaining Clip
O-ring
1.
2.
Install the O-ring (supplied with the fiber) on each fiber end, as shown in the drawing.
While pressing the fiber ends firmly into the ports on the sensor front, slide the U-shaped retaining clip (supplied with the sensor) into the slot in the sensor’s barrel,
until it snaps into place.
Plastic Fiber Installation
Gripper
Unlock
Lock
Adapters for
0.25- and 0.5-mm fibers
Trimmed fiber
control ends
Sensor Face
Plastic fiber
receiver port
Plastic fiber
emitter port
1.
2.
3.
4.
With supplied fiber cutter, make a clean cut at control ends of fibers.
Unlock the fiber gripper as shown below. Apply appropriate fiber adaptors prior to fiber insertion, if needed.
Gently insert the prepared fiber ends into the ports, as far as they will go.
Slide the fiber gripper back to lock, as shown below.
