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KA506BXX Sanyo Denki

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Internal Product Review

The KA506BXX is a Sanyo Denki K SANMOTION servo motor with 60 W output power and a 3000 min-1 rated speed. A 5000 min-1 maximum speed and 1.8 N·m peak stall torque give the motor strong dynamic response for compact motion axes. An efficient, well-balanced servo motor for precise positioning and dependable machine performance.

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Product Description:

The KA506BXX is a brushless servo motor manufactured by Sanyo Denki for the K SANMOTION Servo Motors series. In machine tools, pick-and-place heads, and compact conveyor axes, this motor converts drive current to precise rotary motion so that position loops close quickly and mechanical backlash is minimized. Its integrated electromagnetic brake lets vertical loads stay fixed when power is removed, allowing the actuator to hold parts or tooling at a set height during emergency stops.

The power stage is sized for an armature supply of 75 V; at this voltage the windings draw a nominal 1.1 A to reach rated operating conditions. Under those conditions the shaft delivers 60 W while spinning at 3000 min⁻¹, and produces a steady output torque of 0.19 N·m. When acceleration commands push the controller to its velocity ceiling, the rotor can reach a mechanical limit of 5000 min⁻¹, so the same frame can serve both constant-speed and rapid-index axes. Continuous stall torque is 0.24 N·m and peaks to 1.8 N·m for a brief start-up burst, values that shape the current limits programmed in the servo amplifier. Inductance is 4.4 mH and the 9.4 Ω winding resistance constrains inrush current, letting standard low-power drives operate without auxiliary soft-start circuits.

The holding brake fixes the shaft with 0.29 N·m of static torque while consuming only 0.06 A through a coil that measures 1600 Ω, so standby heat rise is minimal. A total mass of 0.91 kg reduces moving load on small gantries, and the rotor’s low inertia of 0.22×10⁻⁴ kg·m² keeps servo response crisp. Peak stall capability rises to 1.8 N·m for short transients, relying on the magnetic circuit rather than gearbox multiplication. With a torque constant of 0.17 N·m/A, the drive can predict torque from real-time current feedback, improving model-based feedforward tuning in high-precision motion profiles.

Armature Current
1.1 A
Armature Voltage
75 V
Brake Current
0.06 A
Brake Holding Torque
0.29 N·m
Brake Resistance
1600 Ω
Mass
0.91 kg
Max Speed
5000 min-1
Output Power
60 W
Rated Speed
3000 min-1
Rated Torque
0.19 N·m
Rotor Inertia
0.22×10^-4 kg·m2
Stall Torque (cont.)
0.24 N·m
Stall Torque (peak)
1.8 N·m
Torque Constant
0.17 N·m/A
Winding Inductance
4.4 mH
Winding Resistance
9.4 Ω

Frequently Asked Questions about KA506BXX:

Q: What is the maximum speed capability of the KA506BXX servo motor?

A: The KA506BXX servo motor has a maximum speed of 5000 min-1.

Q: What is the output power rating of the KA506BXX servo motor?

A: This model delivers an output power of 60 W during continuous operation.

Q: What is the rated torque of the KA506BXX servo motor?

A: The rated torque for the KA506BXX is specified at 0.19 N·m.

Q: How much brake holding torque does the KA506BXX offer?

A: The brake holding torque provided by this model is 0.29 N·m.

Q: What armature voltage is required to operate the KA506BXX servo motor?

A: The armature voltage required for the KA506BXX is 75 V.

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