Owner`s manual

RPC-SERIES OWNER’S MANUAL
APPENDIX D
70
APPENDIX D
RPC TROUBLESHOOTING GUIDE
PROBLEM SYMPTOM CAUSE SOLUTION
No Menu Blank Screen Cables Adapters
Parameters
Ensure correct cables
and adapters are being
used and are connected
properly. Verify serial
parameters are
correctly configured.
Password Doesn’t
Work
Returns to prompt Caps Lock Password feature is
case sensitive. Type
password exactly as it
was originally entered.
No menu when
accessing through
external modem
Blank Screen Modem settings
disagree with RPC
Enter AT modem
commands to
configure modem to
operate with RPC. See
Appendix B (Modem
Command Summary).
Cannot access
RPC-3, 3A, 5
through network
port
Blank Screen Various Note what the CX
LED is doing. Refer
to Appendix C
(Diagnostic LED
Indications)
Current alarm
level exceeded
Continuous buzzer
(current
monitoring)
Unit is drawing
current above the
alarm trip point
Reduce the load being
drawn;
Reset the alarm trip
point to a higher
setting.