VAC1-D22-A Okuma
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The Okuma VAC1-D22-A is part of the VAC Spindle Drives series and has a rated capacity of 22 kW. It uses a 50-pin analog interface and features status lamps labeled M1, M2, and M3. The drive displays POWER, LOSS, and CPUALM with green and red LEDs, and is compatible with 5020 and 7000 controls.
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Product Description:
The VAC1-D22-A spindle drive is produced by Okuma and belongs to the VAC Spindle Drives series. It forms part of the axis-drive section in machine tools, where it governs spindle speed and torque to match cutting demands during milling, drilling, and related operations. The unit interfaces with the corresponding CNC controller and power stage to supply controlled three-phase power to high-speed spindles. By converting incoming bus power into regulated output, it supports stable closed-loop spindle control during changing load conditions. This arrangement lets the spindle respond to command changes while maintaining the speed regulation needed for precision machining.
Its continuous output capability is rated at 22 kW, which suits medium-sized machining centers. Command signals reach the drive over an analog interface, so velocity references, load meters, and interlock signals are transmitted as voltage levels rather than serial words. All control and feedback conductors terminate on a single 50-pin CN1 connector, which keeps cabinet wiring concentrated at one connection point. The drive communicates natively with Okuma CNC models 5020 and 7000, so it can operate with those controls without extra interface conversion. A front-panel POWER lamp glows Green when the DC link is established, providing a quick visual indication of operating status. Additional POWER, LOSS, and CPUALM indicators complete the diagnostic group and show logic status, undervoltage, or processor errors.
During routine cutting, the dedicated LOSS lamp turns Red only when bus voltage drops below the permitted window. Three status lamps, M1, M2, M3, provide axis-specific information, and their combined pattern shows the overall operating condition. Under a fault, the pattern M1/M2/M3 on or flicker alerts the control to inhibit spindle rotation. Normal running is indicated when the trio remains M1/M2/M3 off, allowing the control system to confirm that the drive is in its expected operating state.
Frequently Asked Questions about VAC1-D22-A:
Q: What is the power output capacity of the VAC1-D22-A spindle drive?
A: The VAC1-D22-A spindle drive has a rated capacity of 22 kW.
Q: How many pins does the CN1 interface of the VAC1-D22-A have?
A: This model uses a 50-pin CN1 connector for its interface connections.
Q: What is the color of the power LED on the VAC1-D22-A?
A: The power LED on the VAC1-D22-A is green in color.
Q: Which control systems are supported by the VAC1-D22-A spindle drive?
A: The VAC1-D22-A is compatible with Okuma 5020 and 7000 control systems.
Q: What kind of interface type does the VAC1-D22-A utilize?
A: This unit utilizes analog interface type for communication and control.
