Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 50)

page 50
Troubleshooting and Maintenance
EZ-SCREEN Grid
Instruction Manual
5.3 Test Mode
Opening a switch or relay contacts connected to the TEST1 and TEST2 terminals
of the emitter, or supplying a voltage of less than 3V dc to TEST1 only, simulates
a blocked condition, for testing purposes.
To verify proper operation, measure the voltage between TEST1 (terminal 5) and
dc COM (terminal 2 or 8) of the emitter:
• If the voltage is 10 to 30V dc, the emitter should be in Run mode and beam
scanning should be occurring. If not, check the +24V dc (terminal 3) to verify
proper supply voltage. If the supply voltage is not within the rated supply
voltage specifications, correct the supply voltage and recheck emitter operation.
If the supply voltage is correct, TEST1 is 10 to 30V dc and the emitter does not
operate properly (Run mode with beam scanning). Replace emitter.
• If the voltage is less than 3V dc, the emitter should be in Test mode and no
scanning should be occurring. If not in Test mode, replace emitter.
5.4 Servicing and Maintenance
Cleaning
EZ-SCREEN System emitters and receivers are constructed of aluminum with a
yellow painted finish and are rated NEMA 4, 13 (IP65). Lens covers are acrylic.
Emitters and receivers are best cleaned using mild detergent or window cleaner
and a soft cloth. Avoid cleaners containing alcohol, as they may damage the
acrylic lens covers.
The accessory interface module is constructed of polycarbonate and is rated
NEMA 1 (IP20). It may be dusted, but avoid contact with any liquids.
Warranty Service
The EZ-SCREEN System is designed for reliability. Do not open the emitter or
receiver housings, other than to access the configuration port or to make
terminal connections. Do not open the housing of the interface module, if used.
They contain no field-replaceable components. If repair is necessary, do not
attempt to repair an emitter, receiver, or interface module yourself; return the unit
to the factory.
If it ever becomes necessary to return a system component to the factory, please
do the following:
1) Contact the Banner Factory Application Engineering group at the address or
numbers listed below:
Banner Engineering Corp., Application Engineering Group
9714 Tenth Avenue North
Minneapolis, MN 55441
Phone: 763.544.3164 or
Toll-Free (US only): 888.373.6767
email: [email protected]
They will attempt to troubleshoot the system from your description of the
problem. If they conclude that a component is defective, they will issue an
RMA (Return Merchandise Authorization) number for your paperwork, and
give you the proper shipping address.
2) Pack the component(s) carefully. Damage which occurs during return
shipping is not covered by warranty.
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164