9 Troubleshooting
9.1 Lockout Conditions
WARNING:
•
Shut down the machinery before servicing
•
Servicing the Banner Engineering device or system while the hazardous machinery is operational
could result in serious injury or death.
•
The machinery to which the Banner Engineering device or system is connected must not be
operating at any time during major service or maintenance. This might require lockout/tagout
procedures (refer to OSHA1910.147, ANSI Z244-1, ISO 14118 or the applicable standard for
controlling hazardous energy).
A Lockout condition causes all of the EZ-SCREEN LS Basic 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
on page 60 and
on page 59) ).
WARNING:
•
Lockouts and power failures indicate a problem
•
Attempts to continue to operate machinery by bypassing the Banner Engineering device or other
safeguards is dangerous and could result in serious injury or death.
•
A Qualified Person
6
must immediately investigate the problem.
The following tables indicate a sensor lockout condition:
Table 7: Receiver and emitter lockout conditions
Lockout Conditions
Receiver LED Behavior
Emitter LED Behavior
Run mode indicator
Off
N/A
Status indicator
Flashing red
Flashing red
Alignment indicators
Off
N/A
Diagnostic display
Error code (flashing)
Error code (flashing)
If both the emitter and its corresponding receiver do not have the same scan code setting, the receiver indicates that Beam 1
is blocked (the Diagnostic display indicating "C" "H" "1" as shown in
on page 59). This is not
considered a lockout and can occur if the Scan Code input is not wired the same for both sensors or if the EDM circuit has
not been re-wired for one-channel monitoring in retrofit installations of two-channel EDM applications (see the warning in the
wiring section of
on page 44).
9.2 Recovery Procedures
To recover from a Lockout condition, correct all errors, power the sensor down, wait a few seconds, and then power the
sensor back up.
WARNING:
•
Lockouts and power failures indicate a problem
•
Attempts to continue to operate machinery by bypassing the Banner Engineering device or other
safeguards is dangerous and could result in serious injury or death.
•
A Qualified Person
7
must immediately investigate the problem.
6
A person who, by possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training and
experience, has successfully demonstrated the ability to solve problems relating to the subject matter and work.
7
A person who, by possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training and
experience, has successfully demonstrated the ability to solve problems relating to the subject matter and work.
EZ-SCREEN
®
LS Basic Safety Light Curtain
58
www.bannerengineering.com - Tel: + 1 888 373 6767