Implementing 3-Switch XOR Ladder Logic with Internal Bit
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Providing reliable rotational control in demanding industrial environments, the Mitsubishi Electric HG-SR102G7-1/5 is a high-performance medium-inertia AC servo motor equipped with a factory-integrated 1/5 ratio gear reducer. This specialized configuration is engineered to deliver high-torque output at reduced shaft speeds, making it an ideal choice for heavy-duty positioning axes, material handling systems, and automated machinery requiring robust speed-matching capabilities. Operating seamlessly within the MELSERVO-J4 ecosystem, this motor utilizes a high-resolution absolute encoder to guarantee exceptional path accuracy, minimal velocity ripple, and superior thermal efficiency under continuous duty cycles.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Code | HG-SR102G7-1/5 |
| Series | HG-SR Series |
| Rated Output | 1.0 kW (Motor Base Rating) |
| Rated Speed | 2000 r/min (Motor Base) / 400 r/min (Geared Output) |
| Gear Reduction Ratio | 1/5 (G7 Helical/Offset Gear Option) |
| Inertia Classification | Medium Inertia |
| Compatible Servo Amplifier | MR-J4-100A / MR-J4-100B / MR-J4-100GF |
| Power Supply Rating | 3-Phase 200 V AC to 240 V AC |
| Ambient Temperature Limit | 0 to 40 degC (Non-freezing) |
| Country of Origin | Japan |
| Shipping Weight (Calculated) | 11.0 kg (24.25 lbs) |
The HG-SR102G7-1/5 is designed to operate directly with the 1.0 kW MR-J4 series servo amplifiers. When replacing legacy HC-SFS102G1 motors, verify the mechanical shaft mounting dimensions, as the HG series incorporates a more compact housing frame. Ensure the servo amplifier parameter configurations are updated via MR Configurator2 to recognize the absolute encoder type associated with the HG-SR series.
The G7 integrated gearbox significantly multiplies the motor torque; however, engineers must ensure the peak radial and thrust forces on the output shaft do not exceed the mechanical limits during emergency deceleration. If the mechanical system hits a physical stop, the multiplied torque can shear keyways or damage the gear teeth. Always adjust the torque limit parameters (TL1/TL2) in the MR-J4 amplifier during the commissioning phase to protect the downstream mechanical linkages.
Due to the high torque capabilities of this geared motor, any physical vibration can lead to localized electrical noise in the encoder feedback cable. It is critical to use dual-shielded, twisted-pair cables for the encoder run and clamp the shield to the amplifier ground plate. Ensure that power and encoder cables are run in separate, grounded metal conduits or separated by at least 30 cm in open trays to prevent noise induced drive faults (such as AL.30 Regenerative Error or AL.50 Overload).
Isolate all primary power sources before mounting or wiring the servo motor. Ensure the internal DC bus capacitors on the companion servo amplifier have fully discharged (verify the charge LED is completely OFF). Failure to disconnect power can result in fatal electrical shock or severe damage to the high-resolution optical encoder assembly.
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Returns & Warranty

Providing reliable rotational control in demanding industrial environments, the Mitsubishi Electric HG-SR102G7-1/5 is a high-performance medium-inertia AC servo motor equipped with a factory-integrated 1/5 ratio gear reducer. This specialized configuration is engineered to deliver high-torque output at reduced shaft speeds, making it an ideal choice for heavy-duty positioning axes, material handling systems, and automated machinery requiring robust speed-matching capabilities. Operating seamlessly within the MELSERVO-J4 ecosystem, this motor utilizes a high-resolution absolute encoder to guarantee exceptional path accuracy, minimal velocity ripple, and superior thermal efficiency under continuous duty cycles.
| Parameter | Specification Value |
|---|---|
| Manufacturer | Mitsubishi Electric |
| Model Code | HG-SR102G7-1/5 |
| Series | HG-SR Series |
| Rated Output | 1.0 kW (Motor Base Rating) |
| Rated Speed | 2000 r/min (Motor Base) / 400 r/min (Geared Output) |
| Gear Reduction Ratio | 1/5 (G7 Helical/Offset Gear Option) |
| Inertia Classification | Medium Inertia |
| Compatible Servo Amplifier | MR-J4-100A / MR-J4-100B / MR-J4-100GF |
| Power Supply Rating | 3-Phase 200 V AC to 240 V AC |
| Ambient Temperature Limit | 0 to 40 degC (Non-freezing) |
| Country of Origin | Japan |
| Shipping Weight (Calculated) | 11.0 kg (24.25 lbs) |
The HG-SR102G7-1/5 is designed to operate directly with the 1.0 kW MR-J4 series servo amplifiers. When replacing legacy HC-SFS102G1 motors, verify the mechanical shaft mounting dimensions, as the HG series incorporates a more compact housing frame. Ensure the servo amplifier parameter configurations are updated via MR Configurator2 to recognize the absolute encoder type associated with the HG-SR series.
The G7 integrated gearbox significantly multiplies the motor torque; however, engineers must ensure the peak radial and thrust forces on the output shaft do not exceed the mechanical limits during emergency deceleration. If the mechanical system hits a physical stop, the multiplied torque can shear keyways or damage the gear teeth. Always adjust the torque limit parameters (TL1/TL2) in the MR-J4 amplifier during the commissioning phase to protect the downstream mechanical linkages.
Due to the high torque capabilities of this geared motor, any physical vibration can lead to localized electrical noise in the encoder feedback cable. It is critical to use dual-shielded, twisted-pair cables for the encoder run and clamp the shield to the amplifier ground plate. Ensure that power and encoder cables are run in separate, grounded metal conduits or separated by at least 30 cm in open trays to prevent noise induced drive faults (such as AL.30 Regenerative Error or AL.50 Overload).
Isolate all primary power sources before mounting or wiring the servo motor. Ensure the internal DC bus capacitors on the companion servo amplifier have fully discharged (verify the charge LED is completely OFF). Failure to disconnect power can result in fatal electrical shock or severe damage to the high-resolution optical encoder assembly.
Global Express Shipping
Returns & Warranty
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| Country of origin |
United States
|