Short circuit test (only for voltage outputs; possible as of product version 3)
AO 8 x 12 Bit only performs a short circuit test for voltage outputs.
See also
Module diagnostic information (Page 210)
10.5.1.2 Diagnostics of the AO 8 x 12 Bit
Introduction
Module faults and channel faults are displayed via the group error display (SF LED) and
signaled via the diagnostic data records 0/1.
Diagnostic messages and possible corrective measures
Table 10-20 Diagnostics messages of analog output module AO 8 x 12 Bit and possible remedial
measures
Diagnostic message Configurable Possible cause of error Corrective measure
No external auxiliary
voltage
No No supply voltage L+ of the
module
Feed supply L+
Module parameters
not assigned
No Startup error Reassign the module pa‐
rameters
Incorrect parameters No One parameter, or the combi‐
nation of parameters, is not
plausible
Reassign the module pa‐
rameters
Time monitoring trip‐
ped
No Intermittently high electromag‐
netic interference
Eliminate the interference
EPROM error No Module defective Replace the module
RAM error No Module defective Replace the module
ADC/DAC error No Module defective Replace the module
Parameter assign‐
ment error
No One parameter, or the combi‐
nation of parameters, is not
plausible
Reassign the module pa‐
rameters
Wire break Yes
(group diagnos‐
tics)
Resistance of actuator too high Use a different type of ac‐
tuator, or modify the wiring,
for example, use cables
with larger cross-section
Interruption of the cable be‐
tween the module and the ac‐
tuator
Establish the cable connec‐
tion
Channel not used (open) Disable the channel group
("Output type" parameter)
Short-circuit
(possible as of prod‐
uct version 3)
Yes
(channel-spe‐
cific)
Overload of the output Eliminate overload
Short-circuit to output Q
V
to
M
ANA
Eliminate short-circuit
ET 200PA SMART I/O modules
10.5 Analog output modules
ET 200PA SMART
Operating Instructions, 06/2019, A5E34192013-AB 209
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