VAC5-D8-AIF Okuma
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The Okuma VAC5-D8-AIF is a spindle drive unit from the VAC Spindle Drives series. It features an analog interface unit and a fuse rating of 5.0 Amps. The drive includes connectors for encoders and resolvers, with a resolver signal frequency of 7.81 kHz and typical signal voltage of 6.0 V.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The VAC5-D8-AIF is an interface module produced by Okuma for the VAC Spindle Drives series. Classified by the manufacturer as part of a spindle drive unit, it relays reference commands and feedback signals between the numerical controller and the VAC power stage. By converting analog velocity and position inputs into conditioned drive signals, the board supports precise spindle speed regulation required for milling, turning, and drilling operations. It mounts inside the machine’s electrical cabinet and forms an integral element of the closed-loop automation chain.
The module is identified by its Analog Interface Unit classification, indicating that command signals are processed as differential ±10 V levels rather than a serial fieldbus. Primary power and control reach the board through the XB-EX (CN1) connector, while incremental encoder feedback is accepted via the XB-EPG (CN13) plug. Rotor position from a resolver is handled on the XB-RES (CN3) header, maintaining synchronous control during low-speed spindle cutting. Within the resolver channel, carrier excitation is fixed at 7.81 kHz, a frequency selected to minimize phase lag and harmonics. Its mounting and grounding points align with the VAC5 inverter chassis.
Protection against downstream faults is provided by a replaceable 5.0 A fuse that interrupts both excitation and signal rails during an overload. Resolver amplitude is driven at 6.0 V (typ) peak-to-peak, a level that provides adequate signal-to-noise margin without overheating the transducer. Angular data are refreshed every 128 µs, allowing the control loop to update spindle orientation more than 7,000 times per second. This rapid update helps the drive respond smoothly during orientation capture and low-speed spindle control. The board is used with VAC1-D3,D6,D8,D6A,D8A,D3B,D6B,D8B spindle drive groups.
Frequently Asked Questions about VAC5-D8-AIF:
Q: What type of interface does the VAC5-D8-AIF use?
A: The VAC5-D8-AIF spindle drive unit from Okuma is equipped with an analog interface.
Q: What is the encoder connector type on the VAC5-D8-AIF?
A: This unit features an encoder connector with the designation XB-EPG (CN13).
Q: What is the fuse rating required for the VAC5-D8-AIF?
A: The fuse rating for the VAC5-D8-AIF spindle drive unit is specified at 5.0 A.
Q: What is the resolver signal frequency used in the VAC5-D8-AIF?
A: The resolver signal frequency for the VAC5-D8-AIF is 7.81 kHz.
Q: Which models does the VAC5-D8-AIF replace as part of the VAC1 replacement set?
A: This unit is included in the VAC1 replacement set covering models VAC1-D3, D6, D8, D6A, D8A, D3B, D6B, and D8B.
