XG555 CAN to DeviceNet Gateway
5
April 21, 2005
Troubleshooting
Transducer problems
No transducers respond after you have entered the correct setup information:
This can be caused by a lack of 24V power to the CAN bus measured at the CAN bus connector
on the control, a bad CAN bus card in the control, a missing terminating resistor at the end of the
trunk line, a bad cable or possibly a single bad transducer. If a bad transducer is suspected
disconnect all of the transducers and reconnect them one at a time to see if they work individually.
This could also be the case if wrong setup information is entered for all of the transducers.
A single transducer does not respond:
Check that the transducer has the right setup information entered and that the drop cable from the
trunk to the transducer is ok. You may need to use the detect utility (see below). If so replace the
transducer in question.
Missing magnets on one or more transducers:
Check and make sure the number of magnets on the transducer and the number entered in the
XG555 match. Make sure all magnets have at least the manufacturer suggested buffer distance
between them.
Error in position information:
If the readings are occasionally in error it could be a noise problem caused by bad solenoids or
motor drive cables, etc. If the readings are always in error check the transducer cabling and power
supply. If the power supply at the transducer is 24 V, you may need to replace the transducer.
