Features:
- Drives the NCE bus in a two-shaft nozzle-control loop.
- Combines NHP feedback with a temperature-derived reference.
- Reports temperature-control engagement through TC.
IC3600SNCF1 links high-pressure shaft-speed feedback to the nozzle-control command in the Mark II two-shaft arrangement.
The relationship among TX, AB and B reverses the IC3600SNCF1 reference direction, producing opposite nozzle actions for the two temperature-error polarities.
IC3600SNCF1 also provides bounded speed-reference adjustments and dedicated bias inputs for defined nozzle-opening and test conditions.
The General Electric IC3600SNCF1 Nozzle Control Card may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric IC3600SNCF1 Nozzle Control Card Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Command Development
- Driven bus: The card supplies the nozzle-control drive signal to NCE.
- Drive pattern: The circuit is developed similarly to the SSKC VCE drive.
- Upper boundary: The maximum drive limit is fixed.
- Regulation: The SSZB operational amplifier modulates the NCE command.
Feedback and Error Signals
- Speed feedback: NHP carries the high-pressure shaft signal.
- Thermal terms: TX, B and AB form the temperature-error reference.
- Regulator link: SJSC feeds the SSZB regulator amplifier.
- Range control: HR changes the temperature operating range.
Boundaries and Indication
- Maximum setting: R90 covers 80% to 105% speed.
- Minimum setting: R92 covers 75% to 100% speed.
- Reference bounds: Minimum and maximum limits constrain the speed reference.
- Status output: TC is logic 1 during nozzle temperature control.
Two-Shaft Nozzle Loop
- System use: The card serves the Mark II two-shaft control arrangement.
- Controlled variable: Nozzle position changes high-pressure shaft speed.
- Open command: Negative bias at MF forces the nozzle toward open.
- Test path: Input E can support the turbine overspeed-test command.