Italiano
CNC Switching Power Supply – SHINDENGEN MYG250/51
The MYG250/51 is an industrial switching power supply unit (“Switching Power Supply Unit”) manufactured by Shindengen, belonging to the MYG series designed for CNC control systems and industrial automation. The module provides regulated and stabilised DC voltages to the machine tool control cabinet, interfacing with logic boards, I/O modules, and operator panels. The designation MYG250/51 (internal code MYG25051) identifies the variant with a specific output configuration and power class. It is not a motor drive or axis module: it is exclusively an auxiliary power supply unit for the control electronics.
The power supply is the component that converts mains AC voltage into the regulated DC voltages required by the CNC control electronics: typically +5 V for digital logic, ±15 V for analogue circuits, and +24 V for I/O. A power supply failure immediately puts the CNC out of service: none of the control boards can operate without their supply voltages, causing an immediate and complete machine stoppage.
Shindengen Electric Manufacturing Co., Ltd. is a Japanese manufacturer founded in 1949, specialised in power converters, rectifiers, switching power supplies, and semiconductor devices for industrial applications. The company supplies power modules to major CNC machine builders and automation system integrators worldwide. Products in this generation of the MYG series are legacy / discontinued: available only as used stock, surplus, or through specialist repair.
Main Technical Specifications
| Type | Industrial switching power supply (Switching Power Supply Unit) |
| Part number | MYG250/51 (MYG25051) |
| Brand | Shindengen Electric Manufacturing Co., Ltd. |
| Known application | CNC control cabinets and industrial automation systems (specific machine: verify on physical unit label) |
| Function | Conversion and stabilisation of DC voltages for CNC control electronics |
| Input voltage | 200–240 V AC single phase, 50/60 Hz |
| Output voltages | +5 V DC / ±15 V DC / +24 V DC |
| Rated power | ~100–250 W |
| Technology | Switching (high-frequency conversion) |
| Interfaces / connectors | Screw terminal blocks and/or edge connectors for AC input and DC outputs (verify on physical unit) |
| Weight | ~0.5–1.5 kg |
| Dimensions | ~150–250 mm × 100–180 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
Industrial Switching Power Supply – SHINDENGEN HVW24010G
The HVW24010G is an industrial switching power supply (“Switching Power Supply”) manufactured by Shindengen, belonging to the HVW series designed for industrial control and CNC system applications. The module provides a regulated output voltage of 24 V DC at a rated current of 10 A (240 W), and is intended to power the logic control circuits, I/O boards and actuators found in machine tool control panels. The input accepts mains voltage over a universal range (typically 100–240 V AC, 50/60 Hz). The unit incorporates built-in protections against overcurrent, overvoltage and short circuit. No distinct alternative part number is known: the commercial code matches the spare part reference.
The power supply is the component that converts mains voltage into regulated DC voltage for all low-voltage circuits in the CNC panel: logic boards, I/O modules, relays and transducers all depend on the stability and precision of this source. A power supply failure causes immediate shutdown of the CNC controller or intermittent malfunctions that are difficult to diagnose, leading to machine downtime and risk of loss of programme data or calibration parameters.
Shindengen Electric Manufacturing Co., Ltd. (?????????) is a Japanese manufacturer founded in 1949, specialising in switching power supplies, rectifiers, power diodes and DC/DC conversion modules. Historically associated with the Fujitsu group, the company is an established supplier of power components for the manufacturing, automotive and CNC industries. Products in the HVW series intended for legacy control systems are considered legacy / no longer in active production: availability is limited to the used channel, industrial surplus, or specialist repair services.
Main Technical Specifications
| Type | Industrial switching power supply (Switching Power Supply) |
| Part number | HVW24010G |
| Brand | Shindengen – ????????? |
| Known application | CNC machine tool control panels and industrial machinery (specific application to be verified on machine) |
| Function | Regulated 24 V DC supply for control, logic and I/O circuits |
| Input voltage | 100–240 V AC, 50/60 Hz (universal, typical) |
| Output voltage | 24 V DC (regulated) |
| Output current | 10 A (rated) |
| Rated power | 240 W (typical) |
| Built-in protections | Overcurrent (OCP), overvoltage (OVP), short circuit (SCP) |
| Interfaces / connectors | Screw terminal strip or edge connectors (to be verified against original documentation) |
| Weight | ~0.5–1.2 kg |
| Dimensions | ~150–250 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |