Banner EZ-SCREEN Safety Light Curtain Systems User Manual
Page 30
4. Watch both the emitter and the receiver LED indicators to determine light screen alignment status.
Power/Fault LED (Green)
Figure 10. Emitter Status Indicators
Alignment LEDs
(Yellow)
Status Blocked LED (Red)
Status Clear LED (Green)
Figure 11. Receiver Status Indicators
Lockout Condition
On the emitter, the green Power indicator is flashing or on the receiver, the red Status Blocked indicator is flashing. See
Troubleshooting and Lockout Conditions
on page 47 for diagnostic information.
Normal Operating Mode
On the emitter, the green Power indicator is ON.
Test Mode
On the receiver, the red Status Blocked indicator is ON and the green Status Clear indicator is flashing. Test input
open.
Test Mode, input fault
On the receiver, the red Status Blocked indicator is ON and the green Status Clear indicator is ON. Test input open at
power-up.
Latch Condition, all optical beams clear
On the receiver, the red Status Blocked indicator is ON and both yellow Alignment indicators are flashing. For Latch
Output receivers, the outputs are ON only when all beams are clear and after a manual reset. If a reset routine can
cause a Clear (Run) condition, optimize the alignment as described in
on page 31. If a Clear (Run)
condition can not be achieved, see “Blocked condition” below.
Clear (Run) Condition
On the receiver, the green Status Clear indicator is ON Green, and both yellow Alignment indicators are ON. To opti-
mize alignment and maximize excess gain, slightly loosen the four sensor mounting screws and rotate one sensor left
and right, noting the positions where the red Status Blocked indicator turns ON; repeat with the other sensor (see
on page 31). Center each sensor between those two positions and tighten the end cap mounting
screws, making sure to maintain the positioning as the screws are tightened. The sensor lenses should directly face
each other. Proceed to Trip Test (
on page 32) once optimum optical alignment is verified.
A Blocked Condition
On the receiver, the red Status Blocked indicator is ON, and both yellow Alignment indicators are ON or OFF. To reme-
dy, perform the
on page 31 procedure.
EZ-SCREEN® Type 2 Light Screen Instruction Manual
30
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