IC3606SPCA1H - 6 Pulse Non Redundant Control Card

SPECIFICATIONS:

Part No: IC3606SPCA1H
Manufacturer: General Electric
Product Type: 6 Pulse Non Redundant Control Card
Series: Mark I & II
Function: Six pulse signal conditioning
Input Power: Rack provided DC supply
Input Interface: Backplane connector
Supply Voltage: Provided by control rack
Control Logic: TTL CMOS level logic
Output Current: Up to 0.15 A
Output Voltage Range: 0-50 V DC
Operating Temperature: -40�C to +85�C
Redundancy: Non-redundant single channel
Availability: In Stock
Weight: Approx. 2.5 kg
Dimensions: 6.00 � 6.00 � 5.00 inches
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IC3606SPCA1H is a 6 Pulse Non Redundant Control Card manufactured by General Electric and used in the GE Speedtronic Mark I & II turbine control systems for gas and steam turbine applications. The primary function of this card is to receive and condition six pulse input signals associated with turbine speed or related pulse rate measurements, and to convert these signals into usable logic level outputs for downstream control and monitoring functions. The module operates as a single, non redundant channel, providing one signal-processing path without automatic backup in the event of card failure. Installed in the Speedtronic control rack, the card interfaces through the system backplane and transfers processed pulse information to associated logic or processor modules responsible for speed regulation, sequencing, and protective functions. The IC3606SPCA1H is designed to meet industrial reliability requirements, maintaining signal accuracy, timing stability, and noise immunity within the GE Speedtronic control architecture.

INSTALLATION:

The card is designed to plug directly into the corresponding backplane slot of a GE IC3600 series control rack, aligning its connector pins with the rack�s female connectors. Before insertion, technicians should ensure the control cabinet power is de energized and appropriate electrostatic discharge (ESD) precautions are in place to prevent damage to the board�s electronics. Physical mounting is guided by the rack slot labelling and retention hardware, once seated, the board should be secured with any provided retention clips or screws to maintain solid contact under vibration and thermal cycling typical of turbine control environments. Connector alignment and insertion must be done gently but firmly to ensure all backplane pins engage reliably. After installation, the system cabinet cover should be replaced, and the control system powered up so that the backplane and adjacent cards can recognise and initialise the new board. No field wiring is typically connected directly to this card external signal conditioning and terminal boards usually interface to field sensors, and the control rack backplane handles connectivity to other modules.

OPERATION:

It begins operation as part of the broader Speedtronic logic network. Its internal circuitry continuously monitors the incoming six pulse signals, typically from speed sensors or pulse generators, and converts these into conditioned logic levels that are usable by the system�s processing modules. The card electronic components filter noise, detect transitions, and ensure timing accuracy to maintain reliable pulse interpretation. This conditioned output supports functions such as rotational speed calculation, speed dependent interlocks, and contributing data to control loops within the turbine control algorithm. Because the card is non redundant, its health and signal fidelity must be monitored by the system or maintenance personnel, since a failure would remove that pulse processing path. The module operates transparently within the control system, with no direct operator controls. Its status is typically inferred from system diagnostics and higher level controller indications.

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FREQUENTLY ASKED QUESTIONS:

What is IC3606SPCA1H?

IC3606SPCA1H is a GE IC3606 series control module designed for Speedtronic Mark I/II turbine systems. It processes six-pulse input signals and outputs conditioned logic to system controllers, operating as a single non-redundant path.

What is the primary function of the IC3606SPCA1H?

The card receives six-pulse input signals from turbine speed or process sensors, filters and shapes them, and converts them into logic-level outputs for Speedtronic Mark I/II control modules. It provides a non-redundant, single-path signal processing channel.

What type of input signals does it support?

It is designed for six-pulse input signals, typically TTL/CMOS compatible or conditioned analog pulse sources. The internal circuitry cleans the pulses to ensure accurate timing and edge detection.

How does it interface with the control system?

All signals, power, and logic outputs are routed through the control rack backplane. The card communicates processed pulse data to other modules such as speed processors, interlock logic, and protective systems.