MiCOM P632
Readiness of Thermal Overload Protection
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Thermal overload protection will issue the THRM1: Not ready signal if one of the following conditions applies:

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Thermal overload protection is disabled.

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Thermal overload protection is blocked because of a fault in the coolant temperature (ambient) acquisition.

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Thermal overload protection is blocked because of an incorrect setting.

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The thermal replica is blocked via an appropriately configured binary signal input.

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Fig. 3-132: THRM1: Not ready