Siemens SINAMICS S200 - Page 457

Remedy: Not necessary.
The alarm is automatically withdra
wn 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
r
esponse, 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 the load duty cycle.
- Chec
k 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 the select
ed 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 the load duty cycle.
See also: p0290 (P
ower 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 the continuous load was no
t maintained.
Fault value (r0949, interpret decimal):
I2t (DC) [100 % = 16384]
See also: r0036 (Power unit overload)
Remedy: - Reduce the continuous load.
- Adapt the load duty cycle.
See also: p0307 (R
ated motor power)
System messages
11.3Faults and alarms
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA 455