Siemens 410 User Manual
6 Troubleshooting
Issue A1
MICROMASTER 410 Operating Instructions
60
6SE6400-5EA00-0BP0
6.4 Alarms
Alarm
Possible Causes
Diagnose & Remedy
Reac-
tion
tion
A0501
Current Limit
Current Limit
Ø Motor power does not
correspond to the inverter power
Ø Motor leads are too long
Ø Earth
Ø Earth
faults
Check the following:
1.
Motor power (P0307) must correspond to
inverter power (r0206).
inverter power (r0206).
2.
Cable length limits must not be exceeded.
3.
Motor cable and motor must have no short-
circuits or earth faults
circuits or earth faults
4.
Motor parameters must match the motor in
use
use
5.
Motor must not be obstructed or overloaded
Ø Increase
the
ramp-up-time.
Ø Reduce the boost.
--
A0502
Overvoltage
limit
Overvoltage
limit
Ø Overvoltage limit is reached.
Ø This warning can occur during
Ø This warning can occur during
ramp down, if the dc-link con-
troller is disabled (P1240 = 0).
troller is disabled (P1240 = 0).
If this warning is displayed permanently, check
drive input voltage .
drive input voltage .
--
A0503
UnderVoltage
Limit
UnderVoltage
Limit
Main supply failed
Check main supply voltage (P0210).
--
A0504
Inverter Over
Temperature
Inverter Over
Temperature
Warning level of inverter heat-sink
temperature (P0614) is exceeded,
resulting in pulse frequency reduction
and/or output frequency reduction
(depending on parametrization in
(P0610)
temperature (P0614) is exceeded,
resulting in pulse frequency reduction
and/or output frequency reduction
(depending on parametrization in
(P0610)
Check the following:
1.
Ambient temperature must lie within
specified limits
specified limits
2.
Load conditions and duty cycle must be
appropriate
appropriate
--
A0505
Inverter I
Inverter I
2
t
Warning level exceeded, current will
be reduced if parameterized
(P0610 = 1)
be reduced if parameterized
(P0610 = 1)
Check that duty cycle lies within specified limits
--
A0506
Inverter duty
cycle
Inverter duty
cycle
Difference between heatsink and
IGBT junction temperature exceeds
warning limits
IGBT junction temperature exceeds
warning limits
Check that duty cycle and shock loads lie within
specified limits
specified limits
--
A0511
Motor Over
Temperature
I
Motor Over
Temperature
I
2
t
Ø Motor
overloaded.
Ø Load duty cycle too high.
Check the following:
1. P0611
(motor
I
2
t time constant) should be
set to appropriate value
2. P0614
(Motor
I
2
t overload warning level)
should be set to suitable level
--
A0600
RTOS Overrun
Warning
RTOS Overrun
Warning
Software problem
Contact Service Department
--
A0910
Vdc-max
controller de-
activated
Vdc-max
controller de-
activated
Ø Vdc max controller has been de-
activated
Ø Occurs if main supply voltage is
permanently too high.
Ø Occurs if motor is driven by an
active load, causing motor to go
into regenerative mode.
into regenerative mode.
Ø Occurs at very high load inertias,
when ramping down.
Check the following:
1.
Input voltage must lie within range.
2.
Load must be matched.
3.
In certain cases apply braking resistor.
--
A0911
Vdc-max
controller
active
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
down times will be increased
automatically to keep DC-link voltage
(r0026) within limits
Check the inverter input voltage (P0210)
--