1Support automatic adjustment technology. 2TTL compatibility and optical isolation input. 3The automatic reactive current is reduced. 4Short circuit, over voltage, over current, short ring protection. 5Suitable for 2 phase 86 motor. Description: This Stepper Motor Driver provides over pressure, over current and short circuit protection. Automatic adjustment technology. Suitable for 2 Phase 86 motor. Features: Support automatic adjustment technology.TTL compatibility and optical isolation input.The automatic reactive current is reduced.Short circuit, over voltage, over current, short ring protection.Suitable for 2 phase 86 motor.Specification: Power: 50KW Rated voltage: 18-80V AC / 24-110V DC Speed response frequency: 200KHz Application: for 2 Phase 86 motor Current: 7.2A Size: Approx. 15*11*5cm / 5.9*4.3*1.9inch Weight: 547g Quantity: 1pc Package List: 1 x Stepper Motor Driver