Rockwell Automation Allen-Bradley 46DFA-L2LBT1-A2, Installation Instructions Manual

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Rockwell Automation Publication 46DFA-IN001A-EN-P - January 2019 7
PHOTOSWITCH DIN Rail Fiber Optic Amplifier
Light Source Intensity Adjustment Feature
The light source intensity can be automatically or manually adjusted.
Automatic Adjustment
The light source intensity is automatically adjusted when teaching is
initiated. The light source level is settable to 15 steps for the 500 µs,
4
ms, and 32 ms modes and 12 steps for the 50 µs mode. Larger numbers
indicate higher light intensity.
Manual Adjustment
The sensitivity teach procedure does not change the light source
intensity. Adjust the light source level manually when Teach errors occur
(see Teach Errors in Table 1 on page 5 ).
Figure 21 - Cat. No. 46DFA-L2LBT1-X Dimensions [mm (in.)]
UL: Maximum ambient temperature: 50 °C (122 °F) for single use, 40
°C (104 °F) for an installation with two or more units connected.
IMPORTANT Light source intensity can be low depending on the level set
in which the light spot cannot be seen.
0 (0.39)
5 (0.2)
11.5
(0.45)
3
(0.12)
3.5 (0.14)
19.5 (0.77)
16
(0.63)
2- Ø 3.2 x 5.2 (0.12 x 0.2) elongate hole
Mounting bracket
(available separately)
2- Ø 3.2 (0.12)
Optical transmission window
14.5
(0.57)
10.5
(0.41)
29 (1.14)
32.4
(1.27)
72 (2.83)
77 (3.03)
29 (1.14)
36.5 (1.44)
16
(0.63)
M12 pigtail
Table
2 - S
pecifications
Attribute 46DFA-L2LBT1-A2, 46DFA-L2LBT1-F4, 46DFAL2LBT1-Y4
Operating voltage 12…24V DC, Class 2/Ripple 10% or less
Power consumption
Normal mode: 1000 mW or less (40 mA or less at 24V)
ECO mode: 750 mW or less (30 mA or less at 24V)
Output types
NPN open collector output/Load current 100 mA (30V DC, Class 2) or less/
Residual voltage: 2V or less
PNP open collector output/Load Current 100 mA(30V DC class 2) or less/
residual voltage: 2V or less
Output modes Selectable Light Operate (L.O.) or Dark Operate (D.O.)
Output Timers
ON delay, Off delay, ON/OFF delay, Resettable One-shot, Timer off
Delay timer: 1...9999 ms (set in millisecond)
Output response time Selectable: 50 µs, 500 µs, 4 ms, and 32 ms. The default setting is 500 µs.
Light source (wavelength) Four-element (AlGaInp) LED (660 nm)
User interface
Operating indicator, setting/teaching indicator,
L.O./D.O. Indicator: orange LED
Display
Received light level: 4 digits in red LED (50 µs mode [(0…3800), 5
00 μs
/
4 ms/32
ms mode (0…9999)]
Threshold: 4 digits in green LED (50 µs mode [(0…3500,
500 μs/4 ms/
32 ms
mode (0…9700)]
Adjustment options
Teach and Set Button (SET)
Threshold and Configuration adjustment (UP/DOWN)
Sensitivity setting
Two-point teach/max sensitivity teach/full auto teach/position teach and
window mode teach
Sensitivity adjustment function Provided
Light source level adjustment Provided (auto/manual)
Mutual interference prevention Up to 8 units (500
μ
s, 4 ms, and 32 ms modes only)
Protection circuit Power reverse connection/output short-circuit protection
Material Polycarbonate
Wiring options
2 m (6.56 ft) attached cable [outer dimension: 4.2 mm (0.16 in.) dia.]
0.2 mm
2
(0.007 in.) 4 cores
Weight Approximately 75 g (2.64 oz)
Ambient light
Illumination on light receiving surface: 3500 lx or less (incandescent
lamp)
Ambient temperature
1…5 adjacent units in operation: -25…+55 °C (-13…+131 °F)
6 or more adjacent units in operation: -25…+50 °C (-13…+122 °F)
Storage: -40…+70 °C (-40…+158 °F) (nonfreezing, noncondensing)
Ambient humidity 35…85% RH (noncondensing)
MTTF 53 years
Protective structure IP40
Vibration
10…55 Hz/1.5 mm () double amplitude/2 hours each in X, Y, and Z
directions
Shock 500 m/s
2
/3 times each in X, Y, and Z directions
Dielectric withstanding 1000V AC for 1 minute
Insulation resistance 500V DC mega, 20 MΩ