The 4161J28-G03 drives servo motors inside GE Fanuc CNC control assemblies as a dedicated amplifier card. This board measures roughly 11.0 inches long, 1.0 inch wide, and 6.3 inches high. Moreover, it weighs about 1.2 pounds, which suits standard rack installation. Engineers specify the 4161J28-G03 when they need dependable current output for accurate axis positioning.
Technical Specifications and Interface Details
The card amplifies command signals and therefore delivers controlled current to servo motors. Specifically, it processes velocity and torque commands from the CNC controller. Additionally, multiple connector headers link the card to the host backplane. Front-panel LEDs reveal run and fault status during service.
| Parameter | Specification |
|---|---|
| Module Type | Servo Amplifier Card |
| Function | Servo motor current drive |
| Command Input | Velocity and torque signals |
| Dimensions | 11.0 x 1.0 x 6.3 in |
| Weight | ~1.2 lbs |
| Connectors | Backplane headers |
| Indicators | Run and fault LEDs |
| Mounting | FANUC CNC rack |
Energy Storage and Drive Stability
Internal capacitors on the 4161J28-G03 provide substantial energy storage for smooth current delivery. Consequently, the card suppresses ripple that could disturb motor torque output. This buffering supports stable acceleration and deceleration profiles. The design therefore maintains consistent machining quality across long production runs.
Installation and Compatibility Notes
Because the 4161J28-G03 slides into standard GE Fanuc racks, technicians complete replacement quickly. They should verify connector alignment before they apply power to the system. Furthermore, routine inspection of edge contacts prevents intermittent drive faults. Always store spare cards in anti-static packaging to protect sensitive components.
Details
| Weight | 1.5 kg |
|---|---|
| Dimensions | 278 × 194 × 42 mm |
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