Troubleshooting
6-1
P/N 7135268B
E 2008 Nordson Corporation
PURBlue EC
Section 6
Troubleshooting
WARNING: Allow only qualified personnel to perform the following tasks.
Observe and follow the safety instructions in this document and all other
related documentation.
WARNING: Troubleshooting activities may sometimes have to be carried
out when the unit is energized. Observe all safety instructions and
regulations concerning energized unit components (active parts). Failure to
observe may result in an electric shock.
Helpful Tips
Before starting systematic troubleshooting, check the following:
S Is the seven-day clock set correctly?
S Are all parameters set correctly?
Refer to Appendix B for possible operating parameters and values.
S Is the interface wired correctly?
S In key-to-line mode: Is there a line speed signal provided?
S Do all plug connections have sufficient contact?
S Have circuit breakers been activated?
S Could the fault have been caused by an external PLC?
S Are external, inductive loads (e.g. solenoid valves) equipped with
recovery diodes?
S Were operating parameters misadjusted? Refer to Appendix B for
proper settings.
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