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M.1302.8908 Kollmorgen

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Internal Product Review

The M.1302.8908 is a Kollmorgen MMC standalone smart drive built for single-phase input and a narrow cabinet profile. Output performance is impressive, with 500 W at 230 VAC and 7.5 A peak output current supporting responsive motion control. A 24 VDC control supply and 266 Hz maximum output frequency make the unit a strong choice for compact servo applications.

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Product Description:

The M.1302.8908 is a standalone smart drive produced by Kollmorgen for the MMC Standalone Smart Drives series. The module functions as a motor power stage and integrated controller, converting single-phase 115 or 230 VAC input power into a controlled three-phase output for servo or induction motors used in packaging stations, pick-and-place axes, and compact machines. It belongs to the narrow-width format that allows dense panel layouts and installation close to the load, so feedback, power, and I/O wiring can remain short.

The drive delivers a continuous load capacity of 1.8 A rms, or 2.5 A on a zero-to-peak basis, allowing sustained operation with fractional-horsepower servomotors. For rapid acceleration, it can supply 7.5 A for short periods without exceeding thermal limits. The pulse-width-modulated stage supports output frequencies up to 266 Hz, permitting the operation of high-speed spindles or linear motors. Internal DC bus monitoring disconnects the mains if the voltage rises above 420 VDC, protecting semiconductors during regenerative events. With a 115 VAC input, the unit supplies 250 W of mechanical power, and this output rises to 500 W when the drive is supplied with 230 VAC. These two input options allow the drive to operate with different supply systems.

Control electronics are supplied from an auxiliary 24 VDC input that draws approximately 375 mA, so the logic remains active during mains isolation. During power-up, the rectifier can draw as much as 70 A of inrush current, which must be considered when selecting fuses and soft-start equipment. Once operating, the inverter dissipates only 22 W, limiting the enclosure heat load. Typical applications draw a nominal line current of 5 A rms, which is compatible with standard 10 A branch circuits. The aluminum housing weighs 2.23 kg and uses a DIN-rail clip for mounting. The drive does not support BiSS encoders, so its feedback options are limited to incremental or analog interfaces.

Biss Support
No
Bus Overvoltage Threshold
420 VDC
Continuous Output Current (0-peak)
2.5 A
Continuous Output Current (rms)
1.8 A
Control Supply Current
375 mA
Control Supply Voltage
24 VDC
Drive Width
Narrow
Input Phase
Single-Phase
Max Inrush Current
70 A
Max Output Frequency
266 Hz
Nominal Input Current
5 A RMS
Output Power At 115 Vac
250 W
Output Power At 230 Vac
500 W
Peak Output Current
7.5 A
Power Loss
22 W
Weight
2.23 kg

Frequently Asked Questions about M.1302.8908:

Q: What is the continuous output current provided by the M.1302.8908?

A: The M.1302.8908 drive can deliver a continuous output current of 2.5 A (0-peak) for sustained operation.

Q: What is the control supply voltage required for the M.1302.8908?

A: This drive accepts a control supply voltage of 24 VDC for normal operation.

Q: What is the output power capacity of the M.1302.8908 at different input voltages?

A: The maximum output power is 250 W at 115 Vac and 500 W at 230 Vac.

Q: What is the bus overvoltage threshold for the M.1302.8908?

A: The bus overvoltage threshold for this drive is set at 420 VDC.

Q: What input phase does the M.1302.8908 operate with?

A: The M.1302.8908 supports a single-phase input for its power supply.

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