Siemens MICROMASTER 430 - Page 84

6 Troubleshooting
MICROMASTER 430 Operating Instructions
6SE6400-5AC00-0BP0
83
Alarm Possible Causes Diagnose & Remedy
A0920
ADC
parameters
not set
properly.
ADC parameters should not be set to
identical values, since this would
produce illogical results.
Index 0: Parameter settings for
output identical
Index 1: Parameter settings for input
identical
Index 2: Parameter settings for input
do not correspond to ADC
type
A0921
DAC
parameters
not set
properly.
DAC parameters should not be set to
identical values, since this would
produce illogical results.
Index 0: Parameter settings for
output identical
Index 1: Parameter settings for input
identical
Index 2: Parameter settings for
output do not correspond to
DAC type
A0922
No load
applied to
inverter
Ø No Load is applied to the
inverter.
Ø As a result, some functions may
not work as under normal load
conditions.
A0952
Belt Failure
Detected
Load conditions on motor indicate
belt failure or mechanical fault.
Apply lubrication if required.
Check the following:
1. No breakage, seizure or obstruction of drive train.
2.If using an external speed sensor, check for correct
function.Check parameters:
P0409 (pulse per min at rated speed).
P2191 (Belt failure speed tolerance).
P2192 (delay time for permitted deviation)
3. If using the torque envelope, check parameters:
P2182 (threshold frequency f1)
P2183 (threshold frequency f2)
P2184 (threshold frequency f3)
P2185 (upper torque threshold 1)
P2186 (lower torque threshold 1)
P2187 (upper torque threshold 2)
P2188 (lower torque threshold 2)
P2189 (upper torque threshold 3)
P2190 (lower torque threshold 3)
P2192 (delay time for permitted deviation)
4. Apply lubrication if required.
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