frequency inverter

Danaher DMC2 30151P Servo Drive Teardown

The Danaher DMC2 30151P servo drive is rated for 3.5 A at 3 phased 240 VAC, 0 – 400 Hz. The DMC2 series drives seems to have been sold as OEM products with different names like Kollmorgen, InMotion or Thomson Industries. These drives are available on surplus market for medical devices in radiology, so presumably […]

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bad electrical panel

Bad Electrical Panel. A Rare Speed Commander Appears! A Danish 4kW Motor Drive

I got hold of two electrical panels with a bad wiring job and the worst documentation. Not to say that it is completely out of code (racing fast for illegal). The did however turn out to contain a gem of lost times. A “Speed Commander”, which is a Danish designed and produced 4 kW motor

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Kone elevator control/power electronics panel teardown

This is a Kone Elevator control and power electronics panel dated around 1999-2000 according to stickers and test marks. It does not appear to have had a user interface, unless that was connected to the RS232 port. The front reveals a control board with a -12 VDC, GND and +12 VDC power supply at the

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Teardown – Schneider Electric Frequency Inverter ALTIVAR71

I picked up two of there 5.5kW frequency inverters from a scrap yard. Both assumed to be thrown out due to malfunction. I took them home to dismantle them for parts to use in other projects. First we have the front and two stickers, one with specifications and the other with end of life information.

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