6 Troubleshooting and Maintenance
6.1 Troubleshooting and Lockout Conditions
Evaluate status indicators per
Status Indicators
on page 37 .
A Lockout condition causes all of the EZ-SCREEN Type 2 OSSD outputs to turn or remain OFF, sending a stop signal to the
guarded machine. Each sensor provides diagnostic information, via the LEDs, to assist in the identification of the cause(s)
of lockouts. Lockout conditions are indicated as shown in
#unique_88/TABLE_2884D935C0C24180A3F3A8D10833E3B1
.
6.2 Recovery Procedures
To recover from a Lockout condition, correct all errors and perform sensor resets as indicated below.
6.2.1 Receiver (System Reset)
Open the Reset switch for 0.25 second and then close it, or (for Trip Output models not using a reset button) power the
sensor down, wait a second or two, then power it up.
6.2.2 Emitter Reset
Power the sensor down, wait a second or two, and then power it up (in the unlikely event that an emitter reset is needed).
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 EZ-SCREEN Type 2
System or other safeguards is dangerous and could result in an increased risk of harm.
WARNING: Shut Down Machinery Before Servicing
The machinery to which the EZ-SCREEN Type 2 System 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, ISO 14118, or the appropriate standard for controlling hazardous
energy). Servicing the EZ-SCREEN Type 2 while the hazardous machinery is operational could result in
serious bodily injury or death.
Table 2: Emitter Troubleshooting
Emitter
Display
LED Status
Possible Cause and Appropriate Action
Power/Fault
Green flashing
Emitter Failure
•
Check the power supply for low or erratic voltage, or excessive
electrical noise.
•
Verify the sensor has a good earth ground.
If the condition continues, contact Factory.
Power/Fault
Green OFF
Power Supply Failure - Check the power supply.
EZ-SCREEN
®
Type 2 Light Screen
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
