Warning Code Lists - Siemens SED2 series Operating Instructions Manual

Error Cause
A0501 Motor power > VSD power.
Ø
Current limit
Motor cables are too long.
Ø
Earth faults.
Ø
A0502
The overvoltage limit is reached.
Ø
Overvoltage limit
This warning may appear on ramp-down if the dc
link is disabled (P1240 = 0).
A0503 Main power supply failed.
Ø
Undervoltage
The main power supply (P0210) and consequently
limit
the DC link voltage (R0026) are below the defined
threshold value (P2172).
A0504 The warning level of the VSD heatsink
Ø
VSD temperature (r0037) is exceeded.
overtemperature
This results in a reduced pulse frequency and/or a
reduced output frequency (dependent on
parameterization in (P0610).
A0505
Warning level exceeded. The current supply is
Ø
2
VSD I T
reduced if parameterized (P0610 = 1).
A0506
Difference between the heatsink temperature
Ø
VSD duty cycle
and the IGBT exceeds the warning levels.
A0511 The motor is overloaded.
Ø
Motor over-
The duty cycle is outside the tolerance.
Ø
2
temperature I T
A0520 The warning level of the rectifier heatsink
Ø
Rectifier temperature is exceeded.
overtemperature
A0523 The On-phase is interrupted at the VSD output.
Ø
VSD output fault
A0541
Motor data identification (P1910) selected or
Ø
Motor data
running.
identification
enabled
A0600
RTOS data loss
A0910 Vdc max controller disabled as not able to
Ø
Vdc (max.) keep the DC link voltage (r0026) within
controller
threshold limits (P2172).
disabled
Permanent supply overvoltage.
Ø
Occurs if the motor is driven by a load forcing
Ø
the motor to go into energy recovery operation.
Occurs during ramp-down of very high duty
Ø
cycles.
A0911
Vdc max controller is enabled.
Ø
Vdc (max.)
The ramp-down times are increased automatically
controller
to keep the DC link voltage (r0026) within the
enabled
limits specified (P2172).
Siemens Building Technologies
HVAC Products
7.2.2

Warning code lists

SED2 variable speed drives
Troubleshooting
Diagnosis & Remedy
Check the following:
≤
1. Motor power (P0307) VSD power (P0206).
2. Cable length limits must not be exceeded.
3. Motor cable and motor must not have short
circuits or earth faults.
4. Motor parameters must match the motor in use.
5. Value of stator resistance (P0350) must be
correct.
6. The motor must not be obstructed or
overloaded.
Increase ramp-up time.
.
Reduce boost level
If this warning is displayed permanently, check the
drive input voltage or extend the ramp-down time
for the drive.
Check the main supply voltage (P0210).
Check the following:
1. The ambient temperature must lie within the
limits specified.
2. The load conditions and duty cycle must lie
within the specified conditions.
3.
The fan must turn when the VSD is running.
Check that the duty cycle lies within the limits
specified.
Motor power (P0307) > VSD power (P0206).
Check the following: Make sure that the load duty
cycles (temporary overload) lie within the limits
specified.
Check the following:
1. The ambient temperature must lie within the
limits specified.
2. The load conditions and duty cycle must lie
within the specified conditions.
3.
The fan must turn when the VSD is running.
Check the following:
1. Input voltage must lie within specified range.
2. The load must be adjusted.
3.
In some cases, brake resistance must be
applied.
Reaction
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CM1U5192en
01.2002