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SVC II Servo Control Board – OKUMA 1006-0600 (1CH)
The 1006-0600 (1CH) is an electronic servo control board (“Servo Velocity Control Board – SVC II”) manufactured by OKUMA, documented as a component of the OSP (Open System Platform) series CNC machining centres and lathes. The board manages a single axis drive channel (1CH), closing the speed and current regulation loops on the servo motor of the corresponding axis and interfacing with the CNC axis control unit. The “II” suffix denotes the second generation of the SVC family; the single-channel variant is identified by the 1CH suffix in the commercial part number.
The SVC II board is the electronic controller that governs axis servo motor speed and torque: it receives the speed reference from the CNC controller and maintains the programmed position and velocity during interpolated motion. A failure of this module causes loss of control on the affected axis, with immediate program halt, an axis alarm, and inability to perform any machining until the board is replaced or repaired.
OKUMA Corporation is a historic Japanese CNC machine tool manufacturer, founded in 1898 in Oguchi (Aichi Prefecture). It is one of the few manufacturers worldwide to integrate the design and production of the machine, CNC control (OSP series), motors and drives within a single company. Products in the SVC II family belong to dated OSP systems and are legacy / discontinued: available only as used or surplus stock, or through specialist repair services.
Main Technical Specifications
| Type | Single-channel servo control board (Servo Velocity Control Board – SVC II) |
| Part number | 1006-0600 (1CH) (10060600) |
| Brand | OKUMA Corporation |
| Known application | OKUMA CNC machining centres and lathes, OSP series (Open System Platform) |
| Function | Single-axis servo motor speed and current control (1 channel – 1CH) |
| Number of channels | 1 (single-channel – 1CH) |
| Reference input | Analogue speed reference (±10 V) or serial via OSP bus |
| Feedback | Encoder / resolver from axis servo motor |
| Logic supply voltages | ±15 V and +5 V DC (typical) |
| Interfaces | Edge connectors / flat cable; OSP internal bus |
| Weight | ~0.3–1.0 kg |
| Dimensions | ~200–350 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |