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STP-200/300/400 Series Instruction Manual

6.1.3 Excessive Vibration

When serious vibration or mechanical shock causes the rotor to touch the touch

down bearing (due to external vibration/impact, intrusion of atmosphere or

foreign materials into the STP pump or rotor imbalance ) the STP pump enters

the STOP operation.

The "EMERGENCY OPERATION" lamp lights.

6.1.4 Inverter Overload

When the STP pump does not attain the rated speed within approx. 30 minutes

after starting or when the ACCELERATION state remains unchanged during

operation for approx. 30 minutes, the inverter stops and the STP pump stops as

well. The "FAILURE" lamp lights.

6.1.5 Overheating Inside the STP Pump

When the temperature of the motor inside the STP pump exceeds 90°C due to an

abnormal baking temperature or overload operation, the STP pump decelerates

down to 40,000 rpm.

The "OVER TEMPERATURE" lamp lights.

Further, when the temperature inside the STP pump exceeds 100°C, the STP

pump enters the STOP operation.

The "OVER TEMPERATURE" and "FAILURE"lamps light.

6.1.6 Overheating Inside the STP Control Unit

When the temperature inside the STP control unit (at the heat sink) exceeds

75 ℃ due to a failure in the air cooling fan, external heat source, and others, the

STP pump enters the STOP operation.

The "FAILURE" lamp lights.

6.1.7 Overspeed

When the rotational speed of the STP pump exceeds 52,500 rpm due to a failure

in the inverter, the STP pump enters the STOP operation.

The "FAILURE" lamp lights.

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Sharp R-880D Bedienerhandbuch Seite 72