Omron CQM1H - 08-2005, Руководство по эксплуатации

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55
Appendix B
Troubleshooting
Indicator Status During Normal Operation
f
: Lit,
Y
: Flashing, X: Not lit
Master Expansion
Master
Slave Comments
RDY T/R
RDY
T/R END NODE ALM RDY T/R PWR T/R
f f Y
X X X
f Y f Y
All T/R indicators flash.
Any other indicator display indicates an error. Refer to the table below.
Indicator Alarm Table
The table below shows the description and remedy of an error occurring in the G730 Interface Unit.
f
: Lit,
Y
: Flashing, X: Not lit, “––”: Status not relevant.
Error Master Expansion
Master
Description Remedy
RDY T/R
RDY
T/R END NODE ALM RDY T/R
Errors X –– –– –– –– –– X –– Power not turned on. Turn the power on.
before or
after
normal
Units not completely
connected.
End cover not attached. Refer to unit manual and
correct set up.
operation
–– X X X X X –– –– Abnormal Master. Turn power off and back on.
Replace Master if same error
re-occurs.
Errors
before
f
X
Y f f
X ––
f f
Slave address set between #28
and #30. Set Slave address between #0
and #27.
normal
operation
f
X
Y f
X ––
f f
No terminator set. Set the Slave connected at the
end as the terminator.
Multiple terminators exists in a
system. Only one terminator allowed
per system. Wire separate
systems with one Master each.
Different types of
communications Master exist. Do not mix Master (G7M21)
with different types of
communications Master.
Transmission path shorted.
Transmission path
discontinuity.
Transmission path + and –
wiring reversed. Correctly wire the transmission
path.
Expansion Masters exist with
the same input/output type and
duplicate unit #. Correct settings to give unique
unit # and Slave address.
Expansion Masters exist with
the same input/output type and
duplicate system address.
The Slave set as terminator is
not turned on. Turn on the terminator Slave.
The terminator is set to Slave
address #31. Set terminator Slave address
between #0 and #27.
f
X
Y Y
X ––
f f
Multiple terminators set Set only the final Slave to
terminator.