Siemens MICROMASTER 440 Operating Instructions Manual page 80

7 MICROMASTER 440 specifications
Fault Possible Causes
DAC parameters should not be set to
A0921
identical values, since this would
DAC
produce illogical results.
parameters
Ø Index 0: Parameter settings for
not set
properly
Ø Index 1: Parameter settings for
Ø Index 2: Parameter settings for
No Load is applied to the inverter.
A0922
As a result, some functions may not
No load
work as under normal load conditions.
applied to
inverter
Both JOG right and JOG left
A0923
(P1055/P1056) have been requested.
Both JOG Left
This freezes the RFG output
and JOG Right
frequency at its current value.
are requested
PID Autotuning (P2350) selected or
A0936
running
PID
Autotuning
Active
Load conditions on motor indicate
A0952
belt failure or mechanical fault
Belt Failure
Detected
80
Diagnose & Remedy
Analogue Output parameters should not be set to
the same value as each other
output identical
input identical
output do not correspond
to DAC type
1. Check that load is applied to the inverter
2. Check motor parameters correspond to motor
3. As a result, some functions may not work
Make sure that JOG right and JOG left signals
are not applied simultaneously
Check the following:
1. No breakage, seizure or obstruction of drive
2. If using an external speed sensor, check for
3. Check parameters:
4. If using the torque envelope, check
attached
correctly, because there is no normal load
condition
train.
correct function.
P0409 (pulse per min at rated speed).
P2191 (Belt failure speed tolerance).
P2192 (delay time for permitted deviation)
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)
MICROMASTER 440
Issue A2
Reac-
tion
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Operating Instructions
6SE6400-5AC00-0BP0