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Siemens SIPLUS HCS Operating Instructions Manual
Also see for SIPLUS HCS: Compact operating instructionsOperating instructions
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Functions9.6 Monitoring functionsSIPLUS HCS4200Operating Instructions, 11/2015, A5E35066204A/RS-AA/002 859.6.3 Monitoring of the 24 V DC supply voltageThe 24 V DC supply voltage is monitored on the CIM. If the 24 V fails, the power outputs ofthe POMs are automatically deactivated. There is no manufacturer-specific diagnosticsalarm in the case of failure of the 24 V supply. Instead, the PROFINET/PROFIBUS controllerdetects and signals failure of the HCS system or individual modules.9.6.4 Frequency monitoringFrequency monitoringThe frequency of the applied line voltage is automatically detected and monitored. Thefrequency value can be read by the user.Frequency Valid range50 Hz 47 Hz to 55 Hz60 Hz 55 Hz to 63 HzFrequency faultIf the frequency of both phases lies outside the permissible range for several consecutivemeasurements (e.g. due to disturbance over an extended period), a frequency fault will bereported to the user (see section Diagnostics data). The heating is not switched off and thelast valid frequency value measured is retained. |
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