Siemens SINAMICS SIMOTICS S200 PROFINET - Page 564

Remedy: Not necessary.
The alarm is automatically wit
hdrawn once the alarm threshold has been fallen below.
Note:
If the temperature continues to increase, this can result in fault F30024.
A30256 Power unit: Overload I2t (AC)
Message class: Power electronics faulted (5)
Message value: -
Component: Power Unit
Response: NONE
Acknowledgment: NONE
Cause: The alarm threshold for the I2t overload on the AC side of the power unit has been exceeded. Depending on the selected
o
v
er
load response, the output current and therefore the output frequency can be reduced. If the current reduction is not
su󹪟cient to thermally relieve the power unit, then when the fault threshold for overload is reached the drive switches o󹪜
the power unit and outputs fault F30005.
See also: r0036 (Power unit overload)
Remedy: - Reduce the continuous load.
- Adapt t
he load duty cycle.
- Check the rated currents of the motor and power unit.
See also: p0290 (Power unit overload response)
A30257 Power unit: Overload I2t (DC)
Message class: Power electronics faulted (5)
Message value: -
Component: Power Unit
Response: NONE
Acknowledgment: NONE
Cause: The alarm threshold for the I2t overload on the DC side of the power unit has been exceeded.
Depending
on t
he selected overload response, the output current and therefore the output frequency can be reduced. If
the current reduction is not su󹪟cient to thermally relieve the power unit, then when the fault threshold for overload is
reached the drive switches o󹪜 the power unit and outputs fault F30258.
See also: r0036 (Power unit overload)
Remedy: - Reduce the continuous load.
- Adapt t
he load duty cycle.
See also: p0290 (Power unit overload response)
F30258 Power unit: Overload I2t (DC)
Message class: Power electronics faulted (5)
Message value: %1
Component: Power Unit
Response: OFF2
Acknowledgment: IMMEDIATELY
Cause: The fault threshold for the I2t overload on the DC side of the power unit has been exceeded.
The permis
sible load duty cycle or t
he continuous load was not maintained.
Fault value (r0949, interpret decimal):
I2t (DC) [100 % = 16384]
See also: r0036 (Power unit overload)
Remedy: - Reduce the continuous load.
- Adapt t
he load duty cycle.
See also: p0307 (Rated motor power)
System messages
12.3Faults and alarms
SINAMICS S200 PROFINET servo drive system with SIMOTICS S-1FL2
562 Operating Instructions, 11/2023, FW V6.3, A5E51646752B AB