Printed in USA 07/04 P/N 63416 rev. A
45LM Series Modules
Plug-in Logic and Display Modules for Q45 Series Photoelectric Sensors
Features
• Three plug-in modules are available:
• Models with selectable output timing offer the following timing logic functions (see
page 2 or 3 for descriptions):
- ON-delay - ON-delayed one-shot
- OFF-delay - Repeat cycle timer
- ON- and OFF-delay - Limit timer
- Retriggerable one-shot - Rate sensor
- Non-retriggerable one-shot - Flip-flop (alternate action)
- Delayed one-shot
• Selectable timing ranges:
0.01 to 0.15 seconds 0.1 to 1.5 seconds 1 to 15 seconds
• Delay and hold time ranges may be individually selected, and times precisely set,
using 15-turn adjustment potentiometers. Delay or hold time may also be disabled
(zero seconds).
• Module allows sensor output to be set for normally-open or normally-closed
operation
• Models with signal strength display give a precise indication of excess gain; see
page 4 for more information. Valuable for sensor setup and alignment, for critical
evaluation of alternative sensing schemes, and for close monitoring of sensing
performance over time (e. g., dirt build-up on lenses or progressive misalignment).
Model Functions
45LM58 Selectable output timing
45LM58D Selectable output timing, plus signal strength display
45LMD Signal strength display, only (no programmable functions)
Specifications
Operating Temperature -40° to +70°C (-40° to +158°F)
Timing Adjustments Models 45LM58.. only: Two 15-turn clutched potentiometers with brass elements, accessible from
outside at the top of sensor, beneath an o-ring sealed polycarbonate cover.
Timing Repeatability Models 45LM58.. only: Plus or minus 2% of the timing range (maximum); assumes conditions of
constant temperature and power supply.
Useful Time Range
Models 45LM58.. only: Useful time range is from maximum time down to 5% of maximum. When the
timing potentiometer is set fully counterclockwise, time will be approximately 5%
of maximum.
Response Time Models 45LM58.. only: When the delay time is switched OFF, the card adds no measurable sensing
response time.
LED Display
Models 45LM..D only: Seven-element LED display, visible through transparent top sensor cover. The
more LEDs that are lit, the stronger is the received light signal; three LEDs lit is
equivalent to an excess gain of about 1x (see page 4).
p/n 63416 Rev. B
Jan 2013
45LM Series Modules
2 P/N 63416 rev. A
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Setting Output Timing Function
Models 45LM58 and 45LM58D (with signal strength display) may be set for one or
several output timing functions. In addition, three adjustable timing ranges are available
(see page 3).
NOTE: ON-delay is selected via switches 4 and 5
NOTE: OFF-delay is selected via switches 6 and 7
NOTES: • ON-delay is selected via switches 4 and 5
• OFF-delay is selected via switches 6 and 7
Multi-turn
Timing
Adjustments
Selection
Switches
Figure 1. 45LM58 features
12345678
ON
12345678
ON
ON
Figure 2. 45LM58 selection switch detail
Output Timing Function: OFF-delay (hold time)
Switch 1 Switch 2 Switch 3 Other Settings
OFF OFF OFF Set Delay time
to OFF
Output
Hold
Signal
Hold
Output Timing Function: ON- and OFF-delay
Switch 1 Switch 2 Switch 3 Other Settings
OFF OFF OFF –
Output
Signal
HoldDelay
Output Timing Function: Retriggerable one-shot
Switch 1 Switch 2 Switch 3 Other Settings
ON ON OFF –
Output
Signal
HoldHold
Output Timing Function: Non-retriggerable one-shot
Switch 1 Switch 2 Switch 3 Other Settings
ON OFF OFF Set Delay time
to OFF
Output
Signal
HoldHold Hold
Output Timing Function: Delayed one-shot
Switch 1 Switch 2 Switch 3 Other Settings
ON OFF OFF –
Output
Signal
HoldDelay HoldDelay
Output Timing Function: ON-delay
Switch 1 Switch 2 Switch 3 Other Settings
OFF OFF OFF Set Hold time
to OFF
p/n 63416 Rev. B
P/N 63416 rev. A 3
45LM Series Modules
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Selecting ON-Delay Time Range
Switch 4 Switch 5 Delay
(min. to max.)
OFF OFF OFF – no delay
OFF ON 0.01 to 0.15 sec.
ON OFF 0.1 to 1.5 sec.
ON ON 1 to 15 sec.
Selecting Hold Time (OFF-Delay) Range
Switch 6 Switch 7 Hold
(min. to max.)
OFF OFF OFF – no hold
OFF ON 0.01 to 0.15 sec.
ON OFF 0.1 to 1.5 sec.
ON ON 1 to 15 sec.
Selecting Output State
Switch 8 Output State
Rate Sensor Logic
ON Output de-energizes above the set rate
OFF Output energizes above the set rate
Flip-Flop Logic
ON Output changes state at trailing edge of signals
OFF Output changes state at leading edge of signals
All Other Logic
ON Normally closed: output de-energizes during Hold time
OFF Normally open: output energizes during Hold time
Output Timing Function: ON-delayed one-shot
Switch 1 Switch 2 Switch 3 Other Settings
OFF ON OFF –
Output
Signal
HoldDelay
Output Timing Function: Repeat cycle timer
Switch 1 Switch 2 Switch 3 Other Settings
OFF OFF ON –
Output
Signal
HoldDelay HoldDelay
Output Timing Function: Limit timer
Switch 1 Switch 2 Switch 3 Other Settings
ON OFF ON –
Output
Signal
Hold
Output Timing Function: Rate sensor
Switch 1 Switch 2 Switch 3 Other Settings
OFF ON ON –
Output
< Hold
Signal
> Hold
Output Function: Flip-flop
Switch 1 Switch 2 Switch 3 Other Settings
ON ON ON –
Output
Signal
p/n 63416 Rev. B
45LM Series Modules
4 P/N 63416 rev. A
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
1234567
Measuring Excess Gain and Contrast
The seven-element LED array, available on models 45LM58D and 45LMD, may be used
to measure the excess gain and contrast in any sensing situation and during sensor
installation and maintenance.
Excess gain is a measurement of the amount of light energy falling on the receiver of
a photoelectric sensor over and above the minimum amount necessary to operate the
sensor’s amplifier. Excess gain is expressed as a ratio:
Excess gain (E.G.) = light energy falling on receiver
amplifier threshold
The amplifier threshold is the point at which the sensor’s output switches. The Q45’s
threshold corresponds to the #3 level of the LED array. That is, when LEDs #1 through
#3 are lit, the excess gain of the received light signal is about “1x.”
The table at right (Figure 3) shows how excess gain relates to the LED array indicator.
Contrast is the ratio of the amount of light falling on the receiver in the “light” state
as compared to the “dark” state. Contrast is also referred to as “light-to-dark ratio.”
Optimizing the contrast in any sensing situation will increase the reliability of the
sensing system. Contrast may be calculated if excess gain values are known for both
the light and dark conditions:
Contrast = Excess gain (light condition)
Excess gain (dark condition)
To determine the contrast for any sensing application, present both the “light” and
“dark” conditions to the Q45, and read the signal for each. Take the ratio of the two
numbers (from Figure 3) that correspond to the highest LED numbers registered for
the “light” and “dark” conditions.
For example, if LEDs #1 through #6 come ON in the “light” condition and LEDs #1 and
#2 come ON in the “dark” condition, the contrast (referring to Figure 3) is calculated as
follows:
Contrast = 6x = 12
0.5x
This value is expressed as “12:1” or “twelve-to-one.”
The best sensor adjustment will cause all seven LEDs to come ON for the “light”
condition, and will cause no LEDs to come ON in the “dark” condition. In this situation
(such as an application in which a box breaks the beam of an opposed mode emitter
and receiver):
Contrast is greater than 8x = 32:1
0.25x
Of course, it is not always possible to adjust a sensor to maintain this much contrast.
However, it is important to always adjust a sensor for the greatest amount of contrast
possible for any sensing situation. The LED signal strength indicator array makes this
easy. Figure 4 gives general guidelines for contrast values.
Figure 3. The 7-segment LED array and its
corresponding excess gain values
Contrast
Ratio Recommendation
1.2 or
less
Unreliable. Use an
alternative sensing scheme.
1.2 to 2
Poor contrast. Minor
sensing system variables
will affect sensing reliability.
2 to 3
Low contrast. Sensing
environment must remain
perfectly clean and all other
sensing variables must
remain stable.
3 to 10
Good contrast. Minor
sensing system variables
will not affect sensing
reliability.
10 or
greater
Excellent contrast. Sensing
should remain reliable as
long as the sensing system
has enough excess gain for
operation.
Figure 4. Contrast values and corresponding
guidelines
LED Number Approximate Gain
#1
#2
#3
#4
#5
#6
#7
0.25x
0.5x
1.0x
2.0x
4.0x
6.0x
8.0x
p/n 63416 Rev. B
P/N 63416 rev. A 5
45LM Series Modules
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Removing and Installing the Plug-In Modules
To remove or install any of the 45LM modules (done through the top of the sensor),
perform the following steps:
1) Remove all power from the sensor and load.
2) Loosen the top cover hold-down screw and raise the transparent cover
(it is hinged).
3) Insert a small screwdriver into one of the slots at the front of the black inner
cover, lift and remove (Figure 5).
4) Insert a small screwdriver into one of the slots at the side of the module to be
removed and pry it up until you can grasp it with your fingers and remove
(Figure 6).
5) Press the new module into place (Figure 7).
6) Replace the black cover, then the transparent hinged cover, and tighten the
hold-down screw.
7) Reapply power as desired.
NOTE: If only installing a new module (and not removing an old one), skip step 4.
CAUTION . . .
Electrical Shock Hazard
An electrical shock hazard
exists inside the sensor
whenever power is applied.
Remove all power to the sensor (and
to the load) whenever the transparent
top cover will be raised and the black
inside cover will be removed.
Failure to remove power while these
covers are removed could result in injury.
NOTE: It is not necessary to remove
power simply to adjust the
Sensitivity or Timing controls,
as long as the black inside cover
remains in place.
Figure 5. Insert a small screwdriver into
the slot and lift the black cover to
remove.
Figure 6. Using the small screwdriver in
the module slot if necessary
to nudge the module loose, lift
the module up and out.
Figure 7. Slide the new module into place,
pressing until it fits snugly.
p/n 63416 Rev. B
Banner Engineering Corp., 9714 Tenth Ave. No., Minneapolis, MN USA 55441 • Phone: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com
45LM Series Modules
P/N 63416 rev. A
WARRANTY: Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. will repair
or replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty
period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any
other warranty either expressed or implied.
WARNING . . . Not To Be Used for Personnel Protection
Never use these products as sensing devices for personnel protection. Doing so could lead to serious injury or death.
These sensors do NOT include the self-checking redundant circuitry necessary to allow their use in personnel safety
applications. A sensor failure or malfunction can cause either an energized or de-energized sensor output condition. Consult your current
Banner Safety Products catalog for safety products which meet OSHA, ANSI and IEC standards for personnel protection.
!
Banner Engineering Corp Limited Warranty
Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the
date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time
it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or
liability for misuse, abuse, or the improper application or installation of the Banner product.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING,
WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER
ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.
This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL
BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES,
LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT
DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE,
TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.
Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any
obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp.
p/n 63416 Rev. B