Digital guide
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Kollmorgen MTB706SB2-H191-022
Product Introduction: This is a Kollmorgen-specified external braking resistor used to dissipate regenerative energy from decelerating servo motors when the DC bus voltage would otherwise rise to a fault level. The MTB prefix designates Motion Technology Brake resistor; “706” relates to AKD 6/12 A frame compatibility; “SB2” = Standard Brake Resistor, 2nd variant; H191-022 = resistance/power/cable configuration per Kollmorgen ordering system.
Detailed content
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Typical Parameters (based on AKD-matched BAR/MTB series):
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Resistance: Commonly 33 Ω or 23 Ω depending on exact sub-type (33 Ω typical for AKD-x00306/x00606/x01206)
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Power Rating (Continuous / Intermittent): Typically 250 W continuous, up to several kW intermittent (2 s duty cycle) — exact values verified by Kollmorgen Motioneering software sizing
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Connection: Pre-terminated leads with ring terminals for drive TB+/TB− brake resistor terminals
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Construction: Aluminum-housed wirewound resistor on heatsink plate or enclosed tray
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Ambient Temp: -25 to +70 °C
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Mounting: Inside or outside cabinet (ensure adequate cooling; outside requires IP-rated enclosure)
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Installation Note: Set drive parameter for external regen resistor — enable, set resistance value, set max regen power threshold. Undersized resistors can overheat or cause drive overvoltage faults.
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Application: Vertical axis, frequent start/stop, high-inertia load deceleration.
