DUOmetric LVB Manual

Technical Information – Date 05.02.2013
LVB Control Unit
LVB Control UnitLVB Control Unit
LVB Control Unit
DUOmetric AG
DUOmetric AGDUOmetric AG
DUOmetric AG
Weberstr. 8
D - 86836 Lagerlechfel / Germany
Tel: [phone]
Fax: [phone]
www. uometric. e
Email: support@ uometric. e
Features
FeaturesFeatures
Features
The LVB control unit has the following features:
•One transmitter/receiver set can be
connected.
•
Relative switching threshold for reliable object
recognition.
•Increased safety: safe shut down on contact
bonding and no blanking of defect beams.
•Floating relay contacts.
General escription
General escriptionGeneral escription
General escription
The device switches when one or more beams are
interrupted.
The output relays have positively driven contacts
(2xreverser), each with one break contact lead back to
a digital input. That ensures the detection of a failure
(„contact did not open“) of the brought out normally
open contact. A watchdog unit cuts off the relays at a
failure of the microcontroller.
Subject to change without notice. We are not responsible for technical errors. DUO_A021ENG_LVB

Technical Information
LVB
Page 2 of 12
Table of Contents
Table of ContentsTable of Contents
Table of Contents
Features........................................................................................................................... 1
General description.......................................................................................................... 1
Extended functionality...................................................................................................... 3
Self calibration ................................................................................................................. 4
Procedure:.................................................................................................................... 4
LED states during self calibration................................................................................. 4
LEDs ................................................................................................................................ 5
LED A ........................................................................................................................... 5
LED B ........................................................................................................................... 5
Fault LEDs.................................................................................................................... 5
Special LED combinations ........................................................................................... 5
Initial operation ................................................................................................................ 6
Circuit board view ............................................................................................................ 7
LVB............................................................................................................................... 7
LVB-24V ....................................................................................................................... 7
DIP-Switch.................................................................................................................... 8
Pin assignments LVB-24V............................................................................................ 8
Connecting the profiles .................................................................................................... 8
Mounting Instructions for Light Grid Profiles.................................................................... 9
Important notes concerning usage and handling ........................................................... 10
Conformity...................................................................................................................... 10
Technical data ............................................................................................................... 11
Enclosure dimensions.................................................................................................... 12

Technical Information
LVB
Page 3 of 12
Exten e functionality
Exten e functionalityExten e functionality
Exten e functionality
If necessary your technical support can change parametrisation or do additional
diagnosis by using the serial interface.
The following functions are disabled on delivery status, but can be enabled by
parametrisation:
Auto blanking
Auto blankingAuto blanking
Auto blanking
Interrupted beams are automatically blanked if the configuration value "Auto
blanking on cal." is set to "1".
Please notice that beams must be covered completely for the auto blanking procedure.
If beams are blanked LED A turns on.
Diagonal beams
Diagonal beamsDiagonal beams
Diagonal beams
With additional diagonal beams the protection density of your light grid system can be
increased.
Status Diagonal beams off
(standard) Diagonal beams on
View

Technical Information
LVB
Page 4 of 12
Self calibration
Self calibrationSelf calibration
Self calibration
On self calibration the controller set up the correct gain for the connected light grid set,
determines the profile length and executes an error test. During self calibration the
monitoring area has to be uninterrupted (Exception: see automatic blanking).
Proce ure:
Proce ure:Proce ure:
Proce ure:
1. Supply voltage must not be turned on.
The device has to be turned off.
2. No beam is interrupted.
3. Set DIP-switch 3 to position "on".
4. Power-on the device.
5. Take notice of the LEDs:
The green LED D should illuminate permanently.
No red Error-LED is flashing or light up permanently.
6. Set DIP-switch 3 back to position "off" while the system
stays powered up => D the controller stores the calculated values to the
EEPROM and turns back to normal operating mode.
If you don’t want to store the new values, turn off the supply voltage while the
DIP-switch 3 is still in position “on”.
LED states uring self calibration
LED states uring self calibrationLED states uring self calibration
LED states uring self calibration
LED Status
D E Rx, Tx
on off off Self calibration o.k.
off on off
Could be accepted
Possible causes:
•Distance between receiver and transmitter is too
large
=> reduce distance or use transmitter with option
„increased power“.
•Individual beams covered or polluted.
•Difference between the intensity of the brightest
and the darkest beam is too large.
on or
flashing
Self calibration failed!
Individual beams are detected as defective.
The system will only run in emergency operation!
Additional LED-combinations see chapter LEDs
Tip:
Tip:Tip:
Tip:
For use in elevators do the self calibration while the doors are open.
Otherwise the light curtain could switch during the elevator ride.

Technical Information
LVB
Page 5 of 12
LEDs
LEDsLEDs
LEDs
The LVB indicates operational errors and faults via the eight adjacent LEDs RX, TX,
A… F. If the status is normal, LEDs C, D, E, F indicate the signal strength.
Please note that the error cannot be localized with 100 percent accuracy. The LEDs
only provide you with a good idea of where to start looking.
LED A
LED ALED A
LED A
Signal Status Possible causes
A (yellow)
illuminated Warning Blanked beams, watchdog.
LED B
LED BLED B
LED B
Signal Status
Even flashing
(approx. 2 Hz) Normal operation.
Continuously on
or off serial communication "crashed", defective
Fault LEDs
Fault LEDsFault LEDs
Fault LEDs
Signal Fault Signal Fault
RX (red)
illuminated Receiver
TX (red)
illuminated Transmitter
RX & TX
illuminated Control unit
Special LED combinations
Special LED combinationsSpecial LED combinations
Special LED combinations
Hardware fault, please inform
manufacturer
Hardware fault, please
inform manufacturer
Length of connected rods
does not correspond with
stored values => perform self-
comparison (self-test)

Technical Information
LVB
Page 6 of 12
Initial operation
Initial operationInitial operation
Initial operation
Please notice the mounting instructions for light grids! (Page 9)
1. Remove the top of the housing and fasten the base.
Use only the specified holes for mounting the housing!
See housing diagram on page 12.
2. Plug in the connectors of transmitter and receiver, screw in the fittings loosely.
3. Set DIP 3 to „on“ for self calibration. (See page 4)
4. Connect the relay contacts.
5. Connect the power supply.
Set DIP-3 to „off“ to complete self calibration.
6. Verify that the light grid is working correct in the entire monitoring area.
7. Screw the top on the housing in its place again.
8. Screw in the fittings tight.
Version LVB

Technical Information
LVB
Page 7 of 12
Circuit boar view
Circuit boar viewCircuit boar view
Circuit boar view
LVB
LVBLVB
LVB
LVB
LVBLVB
LVB-
--
-24V
24V24V
24V

Technical Information
LVB
Page 8 of 12
DIP
DIPDIP
DIP-
--
-Switch
SwitchSwitch
Switch
DIP 1: ON Firmware update
DIP 2: ON Command mode
1
DIP 3: ON Self-calibration when power on the device
DIP 4 For special use
Pin assignments LVB
Pin assignments LVBPin assignments LVB
Pin assignments LVB-
--
-24V
24V24V
24V
Terminal Des. Comment / Function
1 +24 Vdc
2 Minus
7-11 Do not use!
Connecting the
Connecting theConnecting the
Connecting the profiles
profilesprofiles
profiles
•Disconnect power supply.
•Do not switch connections!
The light grid profiles can be damaged if poles are switched.
•Pay attention to the connector coding:
Plug components will only plug into the respective socket components.
Profile connection
wiring
Detail Color assignments2
Standard
White Gray Yellow Brown Green Shielding
Connector configuration of receiver bars for isolated mounting or with double shielding:
Profile connection
wiring
Detail Color assignments
Standard
White
and
Shielding
Gray Yellow Brown Green
Note:
Note:Note:
Note:
Ground of the serial interface is connected to the housing of the receiver.
For connecting to the serial interface we recommend the usage of a “RS232 isolator".
1 See technical information on functions and parameter definition for LVX/LVE
2 For Standard-Wiring. Color assignments of special wiring can differ from this table

Technical Information
LVB
Page 9 of 12
Mounting Instructions for Light
Mounting Instructions for Light Mounting Instructions for Light
Mounting Instructions for Light Gri Profiles
Gri ProfilesGri Profiles
Gri Profiles
•Disassembling of the plug components is not necessary.
•Profiles must be off-circuit when connecting or disconnecting the power
supply.
•Do not switch connections!
The light screen rods can be damaged if poles are switched.
Pay attention to the connector coding:
Plug components will only plug into the respective socket components!
•The front panel must not be scratched. It must be kept free of obstacles and it
must be kept clean (do not use any cleaning agents containing solvents).
•Use a test pin to check that the light grid is working in the entire monitoring
area.
•It is generally not necessary to align the bars exactly. It
should nevertheless be possible to adjust the bars in specific
cases. The bars may also need to be moveable
longitudinally.
•The monitored area between the transmitter and receiver
bars must be clear of obstructions so that the bars can “see”
each other.
•Assemble with the power supply disconnected. Do not
expose the bars to stress.
•Avoid ground loops: Bar pairs must have the same earth
potential.
•Avoid the effects of external light sources (e.g., from
flashlights or sunlight) on the receiver.
•Condensation, fog or smoke can impair the functioning of a
light grid.

Technical Information
LVB
Page 10 of 12
•Danger from reflective surfaces: Reflective surfaces in the
area around the light curtain must be avoided. Otherwise
obstructions will not be detected.
•Avoid optical sensors from mutually affecting each other
(e.g., other light curtains, light barriers)
Important notes concerning usage an han ling
Important notes concerning usage an han lingImportant notes concerning usage an han ling
Important notes concerning usage an han ling
•The light grids are not certified security light screens according
to EN 61496. They are not safety components in accordance
with EU machine guidelines 89/392/EWG with supplement
93/44/EMW appendix 4.
Therefore, they must not be used to protect individuals from
danger.
•Handling of the devices and connecting/disconnecting lines is
only permitted with the operating voltage switched off.
Conformity
ConformityConformity
Conformity
Light grid systems consisting of wire-pair type LI and controller LVE carry the - stamp
and meet the requirements of the following standards:
•Emitted interference: EN 61000-6-3:2001.
•Interference resistance: EN 61000-6-1:2001.