Troubleshooting And Maintenance; Lockout Conditions; Recovery Procedures; Emitter Error Codes - Banner EZ-SCREEN Instruction Manual

6 Troubleshooting and Maintenance

6.1 Lockout Conditions

A Lockout condition causes all of the EZ-SCREEN LP OSSD outputs to turn or remain Off, sending a stop signal to the
guarded machine. Each sensor provides diagnostic error codes to assist in the identification of the cause(s) of lockouts
(see Receiver Error Codes and Emitter Error Codes) or the Diagnostic Error Code label supplied in the documentation
pack).
In addition, emitters internally monitor the infrared LEDs, and provide a health status indication whenever one of these
components has degraded. The emitter will not lockout in this situation. Rather, the indication is intended to notify the
user that the emitter should be replaced soon.
The following tables indicate a sensor lockout condition:
Table 6: Receiver Lockout Conditions
Reset indicator
Status indicator
Zone indicators
Diagnostic display

6.2 Recovery Procedures

To recover from a Lockout condition, all errors must be corrected and power to the device cycled.

6.2.1 Emitter Error Codes

Diagnostic Display 9 Error Description
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.
Emitter LED Problem
This is not an error.
"Axx"/"cxx", where Advanced Diagnostics for the
"xx" are alpha- purpose of factory troubleshooting
numeric characters and repair; not intended for field
troubleshooting.
9 Multiple-digit codes are sequential, followed by a pause.
Table 7: Emitter Lockout Conditions
Off
Flashing Red
Off
Error code (flashing)
Cause of Error and Appropriate Action
• Reset the emitter by cycling power
• If the error clears, perform the daily checkout procedure (per EZ-SCREEN
Checkout Procedures: Shift and Daily Checkout Procedure; Daily Checkout Card).
If the System checks out, resume operation. If the System fails, replace the
emitter
• If the error continues, check the ground connection (see
• If the sensor has a good earth ground connection, check for electrical noise (see
Electrical and Optical Noise
• If the error persists, replace the emitter
• Reset the emitter by cycling power
• If the error clears, perform the daily checkout procedure (per EZ-SCREEN
Checkout Procedures: Shift and Daily Checkout Procedure; Daily Checkout Card).
If the System checks out, resume operation. If the System fails, replace the
emitter
• If the error continues, check the ground connection (see
• If the sensor has a good earth ground connection, check for electrical noise (see
Electrical and Optical Noise
• If the error persists, replace the emitter
This indication can occur due to a potential problem with an LED and is provided as an
early warning indicator
If advanced diagnostic codes are inadvertently displayed, cycle power to the device to
return to the standard error display
www.bannerengineering.com - Tel: 763.544.3164
®
EZ-SCREEN LP Limited Function Safety Light Screen
Status indicator
Diagnostic Display
on page 41)
on page 41)
Flashing Red
Error code (flashing)
Cordsets on page 48 )
Cordsets on page 48 )
39