Dräger REGARD 3000 Mode D'emploi page 166

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Fault elimination and messages
Errors and mes-
sages
Wrong ext.
overr. ack.
switching ele-
ment input
mode
Missing input
channel
Incorrect chan-
nel type
Incorrect opera-
tion mode
Supply voltage
fault
Current over-
load fault
24 V supply
fault
4-20 mA signal
fault
Measurement
signal fault
Maintenance
signal fault
166
Cause
x x - Comfail, incorrect mode
of operation of external
switching element (but-
ton) for acknowledging
over range
x x - Comfail, interrupted or
no communication with
at least one input chan-
nel
x x - Comfail, incorrect
assignment to at least
one input channel
x x - Comfail, incorrect mode
of operation in at least
one input channel
x x - Module error, supply
voltage of Docking Sta-
tion outside permissi-
ble range
x x - Module error, module
output current too high
x x - Transmitter power sup-
ply (24 V) missing or
too high
x x - Transmitter signal cur-
rent (SIGNAL) missing
or too high
x x - Transmitter output sig-
nal returns an unde-
fined value
x x - Unsupported dynamic
maintenance signal
detected by transmitter
Remedy
Check and correct
mode of operation of
external switching ele-
ment (button) for
acknowledging over
range
Check connection
between Docking Sta-
tions and affected mod-
ules and assignment of
modules to input chan-
nels
Check and correct the
assignment to the input
channels.
Check and correct
mode of operation of
input channels
Check power supply or
replace affected Dock-
ing Station or affected
module
Reduce number of con-
sumers on module or
supply these with
power from an external
power source
Check transmitter con-
nection wiring
Check transmitter con-
nection wiring
Check and correct
transmitter configura-
tion and associated
input channel
If possible, configure
transmitter for static
maintenance signals or
set REGARD channel
to Inhibit state before
maintenance
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Instructions for use
REGARD 3000