Micromod MOD: 30ML and Modcell Maintenance for 2001N, 2002N, and 1800R - Manual (Page 14)

MOD30ML and Modcell Maintenance
MODCELL STATUS INDICATORS
Table 2 - 1. Status LED Troubleshooting Guide
Status LED
Condition
Problem Probable Cause Action
Red off
Green off
No power 1. Power not turned on.
2. Power not connected at
distribution panel (AC
source).
3. Instrument power supply
failed.
1. Turn on power.
2. Connect power.
3. Return instrument for repair or
replacement.
Red on
Green off
Green does not
turn on when
power is applied 1. Termination facility on front of
Eurocard instrument, Figure
1, not properly engaged.
2. Identity module not present.
3. Select module failure,
processor failure or memory
failure.
4. Green LED failed.
1. Tighten housing screw.
2. Install identity module.
3. Return instrument for repair or
replacement.
4. Return instrument for repair or
replacement.
Red off
Green on
None; normal
condition after
power-up
Instrument does
not run data
base 1. A valid data base was
previously loaded. Instrument
is initializing and checking
other parameters.
2. A data base has been
successfully downloaded.
Problem with red LED.
1. None, wait for instrument to
enter next state.
2. None
Change RUN/SERVICE switch
setting to SERVICE. If no
change in LED status, tighten
housing screw, and return
switch to RUN. If red LED
remains off and instrument
does not run database, return
instrument for repair or
replacement.
Red on
Green on
Instrument
without a
memory module
is in DEFAULT
state after
power-up
After power-up
instrument does
not accept
download from
memory module 1. No valid main database.
2. Instrument experienced
shutdown fault on previous
power-up.
Bad memory module
database.
1. None - Normal out-of-box
condition.
2. Read shutdown information
and acknowledge from status
page.
Read diagnostics from status
page to check validity of
memory module database.
2 -4