Chapter 8: Diagnostic and Repair Procedures
8-5
Error Number 15
The missing cap sensor input state logic level remains high. This
occurs when two or more consecutive signals are received from the
trigger beam, which indicates containers are passing through the
unit, and no signals are received from the missing cap sensor.
To correct this problem:
• Check LED 7 (dip switch S2-7 closed and S2-8 closed). If the
LED is on, the input level is high.
• Check the signal level on terminal block TB1-5 (if you are using
a nonferrous sensor, check TB1-11). If no container is under the
sensor, the voltage range should be 3 to 5 volts. If a container is
under the sensor, the voltage range should be 13 to 15 volts. If
the voltage is not within these ranges, replace the sensor.
Error Number 16
The trigger beam is not sensing containers. The x-ray count pattern
indicates containers are passing through the X-ray beam, however
no trigger signal is received.
To correct this problem:
• Check to see that the trigger amplifier sensitivity is correctly
adjusted. The sensitivity may be set too low.
• Check to see if LED 8 is on when no container is present. If so it
is blocked, clean the trigger lens.
• Check the signal at TB1-2. It should be less than 1 volt when the
beam is blocked by a container, and 17-20 volts when the beam
is clear.
• Check to see that the x-ray threshold is set correctly. It may be
set slightly high. False errors can occur when the line is
stopped and the x-ray threshold is too high.
Error Number 22
This error occurs when an encoder pulse is missed. The encoder
may be failing.
To correct this error:
Check LED 3 and the signal at TB1-23 while the conveyor is
running. LED 3 should pulse regularly and the signal at TB1-23
should be smooth and regular. If LED 3 pulses irregularly or
remains dark, encoder pulses are missing. Replace the encoder.
Industrial Dynamics Company, Ltd. © Form 40256-0600
To Next Page
Loading...
