8.3.7 Low RTC battery
The lithium battery for the display function of the date/time is installed in the SCU-1601. "Low RTC
Battery" is displayed when the decrease in the voltage of the battery is detected.
The STP pump can operate though some failure occurs such as the time of the error history is not
correct when the voltage of the battery is low.
"Low RTC Battery" message cannot be released without exchanging the battery.
Contact us when exchanging the battery. The decomposition of the SCU-1601 is necessary.
8.3.8 Much MotorCurrent
"Much MotorCurrent" is displayed when the state that a trend of motor current exceeding the setting
value continues during the fixed time.
When the deposit accumulates in the STP pump, the motor current may gradually grow with the
operating time. Considering the time of the overhaul, this "WARNING" function can be used.
Since the deposit accumulation varies depending on the actual application process, the trend of
increasing motor current varies in each application process. Therefore, it is necessary to set the
warning notice condition in consideration of the pump use condition.
For specific condition setting, contact Service office.
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