NE9611 Intelligent Transient Tachometer

NE9611 Intelligent Transient Tachometer

Functional Description

• NE9611Intelligent speed monitoring device receives input signals from a magnetic electric speed, reluctance speed, or eddy current sensor system, continuously measures and monitors the machine's speed, and provides protection for the machinery.
• NE9611The intelligent speed monitoring device is based onDSPThe intelligent instrument of the processor,Normal observation and basic setting operations can be completed through the instrument panel keyboard.

The following functions are provided as standard:

• Query the basic setting parameters of the instrument;
• The instrument provides a DC power supply with overvoltage protection and short-circuit protection to the sensor;
• Warning of monitoring values, identification of danger exceeding limits, status indication, and output;
• The instrument has three control relays, which can achieve multi-level protection.
• Instrument parameters and data are stored inE²PROMInternally, it can be saved in case of power loss.
• The range, alarm, danger, and number of teeth can be set and changed arbitrarily.

• NE9611Intelligent speed monitoring device with complete self checking and self diagnostic functions:
  • The processor performs a self check on the instrument measurement circuit at regular intervals, and depending on the working condition of the instrument channel measurement circuit, the circuit outputs

Automatically bypass in case of malfunction, causing it to exit operation;

• A circuit that monitors the normal operation of each sensor and its cables（OK Circuit）In the sensor coil

When faults such as disconnection, short circuit, or abnormal output of the preamplifier occur, the dangerous control output of the channel will automatically fail to prevent relay misoperation from causing the unit to shut down incorrectly;

• At the input of the power supply85～265VacWithin a wide range, the entire instrument can operate with high reliability and stability.

The instrument monitors the power supply, and in the event of power failure, power on, abnormal fluctuations, etc., it can automatically lock the operating state, bypass the dangerous relay output, and continue to operate in the maintained state after the power supply returns to normal.

threeNE9611 Intelligent Transient Tachometer．