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

Table 1: Troubleshooting
Display LED Status Possible Cause and Appropriate Action
Emitter
Power/Fault Green flashing Emitter Failure
• Check power supply for low or erratic voltage, or excessive electrical noise.
• Verify that the sensor has a good earth ground.
If condition continues, contact Factory.
Power/Fault Green OFF Power Supply Failure
• Check power supply.
Receiver
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow flashing
Yellow flashing
Red flashing
Green OFF
Output Fault
• Check output connections.
• Check for a short between OSSD1 and OSSD2 or to a secondary source of power.
• In the event of connection to a capacitive load greater than 0.1 µF, contact Factory.
• Open Reset/Test for at least 1/4 second and close.
If condition continues, contact Factory
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow flashing
Yellow OFF
Red flashing
Green OFF
Optical Fault
• Open Reset/Test for at least 1/4 second and close.
• Check for optical interference or noise.
If condition continues, contact Factory.
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow OFF
Yellow OFF
Red flashing
Green OFF
Internal Fault
• Open Reset/Test for at least 1/4 second and close.
• Check power supply for low or erratic voltage, or excessive electrical noise.
• Verify that the sensor has a good earth ground.
If condition continues, contact Factory.
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow OFF
Yellow OFF
Red ON
Green ON
Reset/Test Input Fault
• Reset/Test input open at power-up.
• Switch device OFF, verify Reset/Test input is connected to +24V dc (e.g., the reset
button or switch is closed) and reapply power.
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow OFF
Yellow OFF
Red ON
Green flashing
Test Mode
• Reset/Test input is open.
Alignment
Top
Bottom
Status
Blocked
Clear
Yellow OFF
Yellow OFF
Red OFF
Green OFF
Power Supply Failure
• Check power supply.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
48 www.bannerengineering.com - tel: 763-544-3164 122452 rev. B