Siemens MICROMASTER 411 Manuel d'utilisateur Page 90

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6 Troubleshooting Issue 03/01
MICROMASTER 411 & COMBIMASTER 411 Operating Instructions
90
6SE6400-5CA00-0BP0
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0709 CB warning 10
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0710 CB communication error
Possible Causes
Communication with CB (communication board) is lost
Diagnose & Remedy
Check CB hardware
A0711 CB configuration error
Possible Causes
CB (communication board) reports a configuration error.
Diagnose & Remedy
Check CB parameters
A0910 Vdc-max controller de-activated
Possible Causes
Vdc max controller has been de-activated, since controller is not capable of keeping DC-link voltage
(r0026) within limits (P2172).
Occurs if main supply voltage (P0210) is permanently too high
Occurs if motor is driven by an active load, causing motor to go into regenerative mode
Occurs at very high load inertias, when ramping down
Diagnose & Remedy
Check the following:
Input voltage (P0210) must lie within range
Load must be match
A0911 Vdc-max controller active
Possible Causes
Vdc max controller is active; so ramp-down times will be increased automatically to keep DC-link
voltage (r0026) within limits (P2172).
A0912 Vdc-min controller active
Possible Causes
Vdc min controller will be activated if DC-link voltage (r0026) falls below minimum level (P2172).
The kinetic energy of the motor is used to buffer the DC-link voltage, thus causing deceleration of the
drive!
So short mains failures do not necessarily lead to an undervoltage trip.
A0920 ADC parameters not set properly
Possible Causes
ADC parameters should not be set to identical values, since this would produce illogical results.
Fault value = 0: Parameter settings for output identical
1: Parameter settings for input identical
2: Parameter settings for input do not correspond to ADC type
A0921 DAC parameters not set properly
Possible Causes
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