Banner EZ-SCREEN Instruction manual - page 41
Diagnostic
Display 10
Error Description
Cause of Error and Appropriate Action
EDM 2 Error
EDM 2 configuration not valid (wiring or switch).
•
Verify that the EDM wiring is correct and that the external devices
meet the requirements described in
on page 33
•
If the error continues, remove power to the guarded machine,
disconnect the OSSD loads, disconnect the EDM input signals,
configure EDM for no monitoring (per
on page 33) and conduct the initial checkout procedure.
•
If the error clears, the problem is in the external device contacts
or wiring, or is a response-time problem of the external devices.
Verify that the EDM wiring is correct and that the external devices
meet the requirements described in
on page 33.
•
If the error continues, check for noise on the EDM inputs (see
on page 41).
Fixed Blanking Error
This error occurs when beam(s) that have been
blanked (programmed to ignore a fixed object)
become clear when the object is removed or
moved.
•
Reposition the object and perform a key reset (or cycle power).
•
Re-program (teach) the fixed blanked object(s).
Programming Timeout Error
This error occurs when the Fixed Blanking
programming mode (teach) exceeds the ten-
minute limit.
•
Re-program (teach) the fixed blanked object(s).
Cascade Configuration Error
This error occurs when the configuration sequence
is incorrectly followed, receiver(s) 2, 3 or 4 are
configured, or receiver 1 is moved to a different
position in the cascade.
If this code appears for a noncascaded application,
check EDM wiring.
•
The CSSI input channel(s) are shorted together or to another
source of power or ground.
•
Configure only the first receiver in the cascade (connected to the
machine interface). All other receivers must be set for 2-channel
EDM and trip output (T).
•
Re-configure the first receiver to adapt System to changes or
replacement of other receivers.
NOTE: In a cascaded System, all receivers are
connected together, and all emitters are
connected together.
Excessive Noise Error – Reset Interface
This error can occur due to excessive levels of
electrical noise.
•
Perform a reset by cycling power.
•
If the error clears, perform the daily checkout procedure (per EZ-
SCREEN Checkout Procedures: Shift and Daily Checkout
Procedure; Daily Checkout Card) and if the System checks out,
resume operation. If the System fails the Daily Checkout
procedure, replace the receiver.
•
If the error continues, check the ground connection (pin 7).
•
If the sensor has a good earth ground connection to pin 7,
perform the Initial Checkout procedure (
on page 30).
•
If the error clears, check for sources of electrical noise (see
on page 41).
•
If the error continues, replace the receiver.
Excessive Noise Error – EDM Interface
This error can occur due to excessive levels of
electrical noise.
Excessive Noise Error – Cascade Input
This error can occur due to excessive levels of
electrical noise.
Cascade Input Simultaneity
Operation of channels A and B mismatch > 3
seconds.
•
Check operation of Channel A and Channel B of cascade input.
•
Cycle power or cycle the input.
“Axx”/
“bxx”/"Fxx",
where “xx” are
alpha-numeric
characters
Advanced Diagnostics for the purpose of factory
troubleshooting and repair; not intended for field
troubleshooting.
If advanced diagnostic codes are inadvertently displayed, cycle power to
the device.
6.3 Electrical and Optical Noise
The EZ-SCREEN LP 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 condition. In
extreme electrical noise cases, a Lockout is possible. To minimize the effects of transitory noise, the EZ-SCREEN LP
responds to noise only if the noise is detected on multiple consecutive scans.
If random nuisance Trips occur, check the following:
10 Multiple-digit codes are sequential, followed by a pause.
EZ-SCREEN
®
LP Limited Function Safety Light Screen
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41