Functions
6.2 Intrinsic protection
Motor starter (3RK1308‑0**00‑0CP0)
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Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
6.2
Intrinsic protection
The ET 200SP motor starter protects itself against overload. Intrinsic device protection
cannot be parameterized or switched off. You can find more information on the permissible
ambient temperatures in chapter Permissible ambient temperatures up to 1000 m above sea
level. (Page 44).
If the intrinsic protection becomes active, the follow responses occur:
●
The motor trips.
●
Emergency starting is not possible in the case of tripping due to intrinsic device
protection.
●
The diagnostic message "Switching element overload" is output in DS92 Read device
diagnostics (Page 186).
●
The entry "Number of switching element overload trips" in DS95 Read statistics
(Page 192) is incremented by 1.
As of device firmware V1.2.0, the value of the device protection model can be read out via
the DS94 Read measured values (Page 191).
If the intrinsic device protection was active, the device's diagnostics function indicates a
device fault.
NOTICE
Damage due to operation of capacitive loads possible
When capacitive loads are used, the switching components in the ET 200SP motor starter
can be destroyed by high inrush currents.
NOTICE
Material damage due to operation with frequency converters possible
Operation in series with a frequency converter is not allowed.
The switching components in the motor starter can be destroyed when operating an
ET 200SP motor starter in series with a frequency converter.
