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Author Topic: Testing salvaged AC servos  (Read 2111 times)

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Offline mbele

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Testing salvaged AC servos
« on: April 22, 2014, 09:45:10 AM »
Hello

I've salvaged some parts from 2 inkjet printers:
1.
Fuji Faldic-w driver RYC201DC3 VVT2 + motor GYS201DC2 T2C w/ 17bit encoder (200W, input 200-230V@3.4A)
Fotek SSR-25 DA (25A/250V) input:3-32VDC, output: 24-380VAC
2.
Panasonic Minas driver MSDA043A1A + motor MSMA042A1G w/ 2500 P/r encoder (400W, input 200-230V@1.8A)
Delta Electronics 20DBAG5 EMI filter (250V/20A 250V/16AHPF)
Delta Electronics 06GEEG3E line filter (6A)

I'd like to test if they work, but I'm not sure if I should power them on without other required components in the power supply chain.
Fuji requires circuit breaker/Earth leakage circuit breaker, AC reactor and power filter. Panasonic requires "Non-Fuse Breaker" (probably simple automatic circuit breaker), noise filter, magnetic contactor (probably relay), and reactor. I've found all the missing components on ebay, but price is too high if it turns out that motors/drives do not work.

Can I connect drives directly to 220V AC power supply, and check if they work without burning them?

Thanks
Mihael

Re: Testing salvaged AC servos
« Reply #1 on: April 22, 2014, 10:14:28 AM »
Mihael,
Please stop and consider what you are doing.  I don't wish to be offensive, but your post exhibits a near complete lack of electrical knowledge, and the voltages you are contemplating can be lethal.  I hope you will do a lot more studying before you start connecting any thing electrical.

With respect and concern for your safety and health,
John Champlain 

Offline mbele

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Re: Testing salvaged AC servos
« Reply #2 on: April 22, 2014, 01:13:51 PM »
John, thank you for your reply and concern. I've never worked with servos, so I'm a bit insecure.
Re: Testing salvaged AC servos
« Reply #3 on: April 22, 2014, 02:13:44 PM »
All of that extra stuff is about electrical noise issues and protecting the drives from potential problems. As I understand it you just want to know if they work. Use a pair of 5 amp fuses on the input voltage to limit a fault that may already exist from doing any more than a pop. If they work you'll want to do a lot more homework about what you application really needs.  You are unlikely to do any damage to the motors or drives.

Oh yeah, and wear gloves and don't touch live wires with your bare hands, nose, tongue, or other body parts which shall remain unnamed!

Offline mbele

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Re: Testing salvaged AC servos
« Reply #4 on: April 22, 2014, 03:31:08 PM »
garyhlucas, i figured that much, and that's exactly what I did, just a fuse and a switch - all good :) Thank you.