9.2.2 Emitter Error Codes
Diagnostic
Display
11
Error Description
Cause of Error and Appropriate Action
Emitter Error
This error can occur if the ID
Input (pin 3, Orange) is not
connected to +24 V dc.
Excessive electrical noise or
an internal failure can also
cause this error.
• Verify that the ID Input (ID_in) wiring is connected to +24 V dc.
Generic Wiring Diagram—5-pin and 8-pin Emitter
on page 43
• Cycle the power to the emitter per
on page
54
• 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
on page 58 )
• If the sensor has a good earth ground connection, check for
electrical noise (see
• If the error persists, replace the emitter
Emitter LED Problem
This is not an error.
This indication can occur due to a potential problem with an LED and is
provided as an early warning indicator
9.3 Electrical and Optical Noise
The EZ-SCREEN LS Basic is designed and manufactured to be highly resistant to electrical and optical noise and to operate
reliably in industrial settings. However, serious electrical and/or optical noise may cause a random Trip. In very extreme
electrical noise cases, a Lockout is possible. To minimize the effects of transitory noise, the EZ-SCREEN LS Basic dual
scan technology responds to noise only if the noise is detected on multiple consecutive scans.
If random nuisance Trips occur, check the following:
• Poor connection between the sensor and earth ground
• Optical interference from adjacent light screens or other photoelectrics
• Sensor input or output wires routed too close to noisy wiring
9.3.1 Checking for Sources of Electrical Noise
It is important that the light screen sensors have a good earth ground. Without this, the System can act like an antenna and
random Trips and Lockouts can occur.
All EZ-SCREEN LS Basic wiring is low voltage; running these wires alongside power wires, motor/servo wires, or other high-
voltage wiring can inject noise into the EZ-SCREEN LS Basic System. It is good wiring practice (and may be required by
code) to isolate EZ-SCREEN LS Basic wires from high-voltage wires.
1. Use the Banner model BT-1 Beam Tracker Alignment Aid (see
on page 58) to detect electrical
transient spikes and surges.
2. Cover the lens of the BT-1 with electrical tape to block optical light from entering the receiver lens.
3. Press the RCV button on the BT-1 and position the Beam Tracker on the wires going to the EZ-SCREEN LS Basic or
any other nearby wires.
4. Install proper transient suppression across the load to reduce the noise.
9.3.2 Check for Sources of Optical Noise
1. Turn off the emitter or completely block the emitter.
2. Use a Banner BT-1 Beam Tracker (see
on page 58 ) to check for light at the receiver.
3. Press the RCV button on the BT-1 and move it across the full length of the receiver’s sensing window. If the BT-1’s
indicator lights, check for emitted light from other sources (other safety light screens, grids or points, or standard
photoelectric sensors).
11
Multiple-digit codes are sequential, followed by a pause.
EZ-SCREEN
®
LS Basic Safety Light Screen
56
www.bannerengineering.com - Tel: 763.544.3164
