6SM 56-S-3000-G-RLG Kollmorgen
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The Kollmorgen 6SM 56-S-3000-G-RLG is part of the 6SM Synchronous Servo Motors series and features a rated power of 1.13 kW with a rated speed of 3000 rpm. This servo motor has a rated torque of 3.6 Nm and can handle a radial load limit of 530 Newtons with an axial load limit of 170 Newtons. It operates at a mains supply voltage of 400 V and has a brake voltage of 24 VDC.
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Product Description:
The 6SM 56-S-3000-G-RLG synchronous servo motor is produced by Kollmorgen for the 6SM Synchronous Servo Motors series. It is a permanent-magnet actuator intended to supply precise rotary motion for automated packaging stations, pick-and-place heads, and other indexing machinery. When paired with a compatible servo drive, it turns drive current into regulated shaft torque, allowing closed-loop position and velocity control in compact industrial installations. Its synchronous operation supports repeatable movement during indexing cycles and other applications that require controlled acceleration, positioning, and stopping.
Under nominal conditions, the motor draws a rated current of 2.9 A from a three-phase 400 V supply and converts that electrical input into 1.13 kW of mechanical output. The shaft reaches 3000 rpm while delivering a continuous torque of 3.6 Nm. The copper windings have a phase resistance of 9.4 Ω, which contributes to resistive heat during operation. The phase inductance is 54 mH and affects the rate at which winding current rises in response to amplifier commands. A voltage constant of 114 V per 1000 rpm indicates the back electromotive force generated as shaft speed increases. These electrical values assist with drive sizing, thermal management, and control-loop tuning for the connected axis.
The motor sustains 3.8 Nm of torque at standstill, and a torque constant of 1.33 Nm/A relates commanded current to the resulting shaft torque. Rotor inertia is 5.2 kg·cm², while static friction torque remains 0.154 Nm; both values affect acceleration and deceleration tuning. The bearings tolerate axial loads up to 170 N and radial loads up to 530 N, supporting loads imposed by belts, gears, or couplings. A 24 VDC brake engages automatically when power is removed, helping secure vertical axes against unintended movement. The winding has a thermal time constant of 20 min, which indicates how quickly its temperature responds to sustained loading. Proper drive settings should account for the motor’s inertia, friction, winding behavior, and permitted bearing loads during repeated motion cycles.
