This printed circuit board serves as a general-purpose I/O interface for GE Mark VIe turbine systems. It connects field devices such as switches, relays, and sensors to the controller. Therefore, it enables flexible discrete I/O control for turbine protection and sequencing.
Physical and I/O Specifications
The GE IS200TGENH1A IS200TGENH1ABB measures 26.0 cm in length and 18.5 cm in width. Moreover, its board weight equals approximately 0.58 kg for rack mounting. A single 64-pin male connector links this board to the VME backplane. Additionally, the board provides twenty-four mixed I/O channels with field wiring terminals.
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Full Model | IS200TGENH1A IS200TGENH1ABB |
| Category | Printed Circuit Board (General Purpose I/O) |
| Dimensions (L x W) | 26.0 cm x 18.5 cm (10.24″ x 7.28″) |
| Board Weight | 0.58 kg (1.28 lbs) |
| Primary Interface | 1 x 64-pin Male Connector |
| Field Wiring Points | 28 Screw Terminal Blocks |
| Digital Input Channels | 16 Channels (24 VDC, Sink/Source) |
| Digital Output Channels | 8 Channels (Relay, Form A) |
| Input Voltage Range | 0 to 30 VDC |
| Input On-State Voltage | > 15 VDC |
| Input Off-State Voltage | < 5 VDC |
| Input Impedance | 4.7 kΩ |
| Input Response Time | 4 ms (Typical) |
| Output Contact Rating | 2A at 250 VAC or 30 VDC |
| Output Coil Voltage | 5 VDC (from Backplane) |
| Output Response Time | 10 ms (Typical) |
| On-Board Components | 16 Input Optocouplers + 8 Relays + 8 Flyback Diodes + 8 LED Drivers + 6 Protection Diodes + 1 Voltage Regulator + 1 EMI Filter + 1 LED Driver IC |
| Energy Storage | 3 x 100 µF Electrolytic Capacitors (35V) + 3 x 10 µF Tantalum (25V) |
| Operating Voltage | +5 VDC and +24 VDC from Backplane |
| Isolation Rating | 1500 Vrms (Inputs), 2000 Vrms (Relay Outputs) |
| Operating Temperature | -20°C to +65°C (-4°F to +149°F) |
| Status Indicators | 16 Green LEDs (Input Status) + 8 Green LEDs (Output Status) + 1 Green LED (Power) + 1 Red LED (Fault) + 1 Green LED (24V OK) |
Digital Input Features and Signal Processing
The GE IS200TGENH1A IS200TGENH1ABB accepts sixteen discrete input signals at 24 VDC. Specifically, each input includes an optocoupler for complete electrical isolation. In addition, the input impedance of 4.7 kΩ suits standard industrial sensors. Moreover, all input channels respond within 4 milliseconds to signal changes. Consequently, this board captures field events reliably for turbine protection logic.
Relay Output Features and Load Switching
Eight Form A relay outputs provide isolated switching for actuator control. For instance, each relay switches up to 2 amps at 250 VAC or 30 VDC. In addition, internal flyback diodes protect the relay coils from inductive back EMF. Moreover, each channel includes an independent green LED for visual status monitoring. Furthermore, the relay outputs can switch both AC and DC loads without polarity concerns. Thus, this board suits valve control, contactor switching, and alarm annunciation.
Energy Storage and Operational Stability
This printed circuit board stores energy using six onboard capacitors for power filtering. Specifically, three electrolytic capacitors smooth the 24 VDC supply for stable optocoupler operation. In addition, three tantalum capacitors provide high-frequency noise suppression for logic circuits. Furthermore, these capacitors maintain I/O status during brief power interruptions. Therefore, the GE IS200TGENH1A IS200TGENH1ABB continues operating through minor supply dips reliably.
Installation and Diagnostic Indicators
Twenty-seven LED indicators provide operational status at a glance on this board. First, a green Power LED lights when the 5 VDC backplane supply is present. Second, a green 24V OK LED indicates external load supply voltage is present. Third, sixteen green Input Status LEDs light when each corresponding input receives an active signal. Fourth, eight green Output Status LEDs illuminate when each relay output is energized. Finally, a red Fault LED signals overtemperature or coil driver failures. Additionally, the board features six mounting holes for secure rack attachment. Thus, you can diagnose system status instantly without external tools.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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