Banner AG4 Series Safety Laser Scanner
5. Troubleshooting and Maintenance
The Scanner uses three diagnostics levels to quickly resolve errors. Proceed in steps to resolve an error:
1. Determine the Scanner’s status, signaled via LEDs and remove the errors with the specified measures listed in
the diagnostic Key.
2. Read the diagnostics list with the configuration and diagnostics software and remove the errors with the aid of
the solution provided.
3. Create a service file with the configuration and diagnostics software and send this service file for remote
diagnostics to Banner (see AG4soft Software Instruction Manual for more information).
Refer to Figure 5-1 for LED names and locations.
5.1 Troubleshooting Lockout Conditions
A Lockout condition causes all of the Scanner OSSD outputs to turn or remain OFF, sending a stop signal to the
guarded machine. Diagnostic error codes are available to assist in the identification of the cause(s) of lockouts
.
The Scanner provides easy methods for determining operating problems. A Lockout condition is indicated by LED #5
(YELLOW) on the LED display flashing at a 4Hz rate and diagnostic information is available via the AG4Soft program.
To access diagnostic information highlight the ―System Data
‖
Operating tab and click on menu bar path ―System Data >
Display the Scanner’s diagnostics lis
t‖.
See Section 5.1.1 and 5.1.2 for diagnostic information and resolution of error/fault conditions.
See Section 5.2 for communication errors and loss of communication.
Recovery Procedures
To recover from a Lockout condition, all errors must be corrected and a reset routine must be performed as described
below or power must be cycled (power the Scanner down, wait a second or two, then power it up). NOTE: See Section
4.5 for power-up and Run mode behavior.
Reset Routine
To reset the Scanner, close the reset switch for ¼ to 5 seconds, and then open it. Closing the reset switch too long will
cause the sensor to ignore the reset request; the switch must be closed from ¼ second to 5 seconds, but no longer (per
Section 4.5).
5.1.1 Scanner LED Status Display
WARNING . . . SHUT DOWN MACHINERY BEFORE SERVICING
The machinery to which the Scanner is connected must not be operating at any time during major service or maintenance.
This may
require lockout/tagout procedures (refer to OSHA1910.147, ANSI Z244-1, or the appropriate standard for controlling hazardous energy).
Servicing
the Scanner while the hazardous machinery is operational could result in serious bodily injury or death.
WARNING . . . LOCKOUTS AND POWER FAILURES
Power failures and Lockout conditions are indication of a problem and must be investigated immediately by a Qualified Person.
Attempts to
continue to operate machinery by bypassing the Scanner or other safeguards is dangerous and could result in serious bodily injury or
death.
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