819XX_MAN_GRM-H_11-2022_ENG_pag. 45
5.2.3. Thermal protection alarm
The device is equipped with a temperature sensor for
the internal heat sink;
The heatsink temperature value is contained in the
Ntc.SSR variable, the over_heat alarm is triggered
when 105° C (221° F) is exceeded.
This condition could be caused by improper
ventilation of the electrical panel, obstruction of the
ventilation slots or blocked cooling fan (if installed).
With the over_heat alarm on, the control disables
control outputs
5.2.3.1. SSR temperature
Acronym App / GF_eXpress menu Attribute Retentive U.M. Default
Description
Ntc.SSR Status R °C -
SSR temperature.
5.2.3.2. SSR temperature derivative
Acronym App / GF_eXpress menu Attribute Retentive U.M. Default
Description
Ntc.SSR.der
Status R °C/12s -
SSR temperature derivative.
5.2.3.3. SSR temperature derivative
Acronym App / GF_eXpress menu Attribute Retentive U.M. Default
Description
STATUS3
Expert Status Diagnostics
R - - -
Temperature reading status.
bit Meaning
0 SSR temperature sensor broken
1 SSR over heat
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