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GE IC3600STKK1
Product Overview: The GE IC3600STKK1 is a Temperature Control Board developed by GE as part of the Mark I and II control system. This plug-in circuit board from the IC3600 series is commonly used in GE Speedtronic Mark I/II gas turbine control panels. It is a straightforward, rack-mounted module that interfaces through the standard IC3600 edge connector, handling analog and discrete control tasks inside the panel. The STKK card plays a pivotal role by receiving the exhaust temperature signal (TX) from the thermocouple processing module, summing TX with various reference signals to modulate output voltage (VCE) for fuel flow control within the system.
Detailed content
Technical Specifications:
- Brand / Model: GE IC3600STKK1 (IC3600 series, Speedtronic Mark I/II)
- HS Code: 853890
- Power Requirements: Supplied via Mark I/II backplane; typically +5 VDC (logic) and ±15 VDC (analog)
- Dimensions: Standard IC3600 single-slot plug-in PCB; approx. 6.5 × 4.5 in (165 × 114 mm)
- Weight: < 0.3 kg
- Operating Temperature: 0 to 60 °C (panel ambient)
- Humidity: 5–95% RH non-condensing
- Signal I/O Types: All I/O via backplane edge connector; supports analog and discrete control signals per application slot
- Communication Interfaces: No external serial/Ethernet; internal backplane bus only
- Installation Method: Plug-in to IC3600 rack; keyed edge connector; front extraction for service
- Country of Origin: United States of America
Functional Features:
- Reception and Processing of Temperature Signal: Receives exhaust temperature signal (TX) from thermocouple processing module
- Signal Summation and Fuel Flow Control: TX signal is combined with reference signals to modulate output voltage (VCE) for fuel flow control
- Output Control: Determines when TX should take control of the VCE bus; sets output TC to logic 1 when actively regulating, or TC! to logic 0 when not in control
- Base Reference Generation and Adjustment: Generates adjustable base reference for temperature control process (adjustable via component R69)
- Ambient Bias Reference Generation: Develops ambient bias reference through an operational amplifier circuit with offset and gain adjustments
- Input Flexibility: Accommodates 0 to 1 mV on BVCE, 0 to 5 V on PCD, 10-50 mA input (by connecting to PCD and jumpering PCD to CSA/B and CSA), or 4-20 mA input with the same configuration
- Signal Output: Output of ambient bias amplifier available at output pin PCDN
- Additional Reference Signal Inputs: Supports additional reference signals at input SJ, such as start-up suppression, peak, and peak reserve signals
Key Features:
- Designed for GE Speedtronic Mark I/II racks – fits the IC3600 backplane and uses the standard edge connector for quick swaps
- Backplane-powered – uses +5 VDC for logic and ±15 VDC for analog stages provided by the panel power supply
- Discrete and analog signal handling – interfaces to the control system through the backplane; no direct field wiring to the card face
- Service-friendly form factor – single-slot card with front extraction points; easy to remove for inspection or replacement
- Legacy turbine continuity – helps maintain installed Mark I/II systems without redesigning the panel
Application Scenarios: GE Speedtronic Mark I/II gas turbine control panels. These cards are typically swapped on a like-for-like basis during planned outages to keep legacy turbines running reliably.
System Compatibility: GE Speedtronic Mark I/II panels using IC3600 card slots (verify slot/function before replacement).
Installation: Plug-in to IC3600 rack with keyed edge connector.
