Siemens MICROMASTER 440 Series User Manual

6 Troubleshooting International English
MICROMASTER 440 Operating instructions
74 6SE6400-5CA00-0BP0
Fault Possible Causes Diagnose & Remedy Reac-
tion
A0707
CB warning 8 see
CB manual for
details.
 CB (communication board) specific See CB user manual --
A0708
CB warning 9 see
CB manual for
details.
 CB (communication board) specific See CB user manual --
A0709
CB warning 10 see
CB manual for
details.
 CB (communication board) specific See CB user manual --
A0710
CB
communication
error
 Communication with CB (communication
board) is lost
Check CB hardware --
A0711
CB configuration
error
 CB (communication board) reports a
configuration error.
Check CB parameters --
A0910
Vdc-max
controller de-
activated
 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 goes into
regenerative mode.
 Occurs at very high load inertias, when
ramping down.
Check the following:
1. Input voltage (P0756) must lie within range.
2. Load must be match.
In certain cases apply braking resistor.
--
A0911
Vdc-max
controller active
 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
 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.
 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
 No Load is applied to the inverter.
 As a result, some functions may not work
as under normal load conditions.
--
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Siemens MICROMASTER 440 Series Specifications

General

Power Range	0.12 kW to 250 kW
Output Voltage	0V to Input Voltage
Frequency Range	0 Hz to 650 Hz
Overload Capacity	150% for 60 seconds, 200% for 3 seconds
Cooling Method	Forced air cooling
Enclosure Rating	IP20
Control Modes	Vector control
Protection Features	Overvoltage, undervoltage, short circuit
Communication Interfaces	PROFIBUS, CANopen, RS485
Operating Temperature	-10°C to +50°C
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)