Gallery, Projects and General > How do I??
Seig C4 Electrics
Fredbare:
I wonder if anyone can help me with my Seig C4.
It was working fine yesterday, but this morning when I started I could not adjust its speed or turn it off ( even with the emergency stop which really seems odd) the only way was at the main switch. When I turned it back on, the front panel lights up and the cooling fan runs, but thats all, no motor.
The motor is a DC 1000w and I am not familiar with the DC controller, the fuses are OK, and the only voltages that I recognise to check are L1, N1 which is 240v AC and the 5V DC and both check out OK, is it possible to check the relay, are there any other checks I can make?
Many thanks
John
John Rudd:
Fredbare,
The motor on the C4 in your case is the 1000w brushless type, with the accompanying controller.....not the usual brushed type fitted to the earlier and smaller C3 mills/lathes....
Info on these is sketchy at best....I suggest you contact Ketan at Arceurotrade and seek advice from him....
Poking around on these controllers isnt a good idea as there is over 300 v dc on the main board...but if you feel confident, unplug it from the mains and a have a good look for discoloration/burning etc....blown fuses etc...
Fredbare:
Thanks John for your reply, I should have said it was a brushless motor and controller. I know my way around a brushed controller, having upgraded the motor and controller on my milling machine, but thanks for the advice re 300v I did note the large caps, but always grateful for a reminder.
Currently I suspect the relay, and would like to test this on the board if possible.
John
John Rudd:
Fredbare/John,
The relay can be tested by applying an external supply to the coil connections and checking the continuity with an ohm meter across the contacts....
The relay will probably need something like 12- 24 v dc for the coil...I cant read the coil voltage from the foto...
As I dont know your level of expertise with electronics, checks should be done with power off.... :zap:
John Swift:
a web search for 953-1A-220AG-1 found this
http://akizukidenshi.com/download/ds/hsinda/953G%20Relay.pdf
if I've read it correctly, the relay has a 220V AC coil
John
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