Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 48)

page 48
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Troubleshooting and Maintenance
EZ-SCREEN Grid
Instruction Manual
Diagnostic
Display
Error
Description
Test Input Error
This error can occur if excessive noise is
present on the test input.
Emitter Error
This error can occur either due to
excessive electrical noise or due to an
internal failure.
Excessive Noise Error
This error can occur due to excessive
electrical noise.
• Reset the emitter by disconnecting and reapplying power to the emitter (see
Section 4.2).
• If the error clears, perform a Daily Checkout procedure (Section 6.4) and if
OK, resume operation. If the system fails the Daily Checkout procedure, replace
the emitter.
• If the error continues, check the ground connection (terminal 1).
• If the sensor has a good earth ground connection to terminal 1, check for
noise on the test input wiring (see Sections 5.2 and 5.3).
• Reset the emitter by disconnecting and reapplying power to the emitter (see
Section 4.2).
• If the error clears, perform a Daily Checkout procedure (Section 6.4) and if
OK, resume operation. If the system fails the Daily Checkout procedure, replace
the emitter.
• If the error continues, check the ground connection (terminal 1).
• If the sensor has a good earth ground connection to terminal 1, check for
electrical noise (see Section 5.2).
• If the error continues, replace the emitter.
• Reset the emitter by disconnecting and reapplying power to the emitter (see
Section 4.2).
• If the error clears, perform a Daily Checkout procedure (Section 6.4) and if
OK, resume operation. If the system fails the Daily Checkout procedure, replace
the emitter.
• If the error continues, check the ground connection (terminal 1).
• If the sensor has a good earth ground connection to terminal 1, check for
electrical noise (see Section 5.2).
• If the error continues, replace the emitter.
5.1.2 Emitter Error Codes
NOTE: The emitter flashes the number 2 followed by the other error code digit, pauses, then flashes the sequence again.
Figure 5-2. Emitter error codes
Cause of Error