Alarm- Spindle not running- discovery 308 - CNCzone.com-The Largest Machinist Community on the net!

12-12-2011, 12:38 PM

fjbart70

Join Date: Feb 2009

Location: usa

Posts: 40

Alarm- Spindle not running- discovery 308

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Bridgeport discovery 308 -dx32

I started getting an alarm while running "Spindle not running, can not cut". Machine would stop moving, but spindle still turning.

At first it was sporatic, now everytime. It also shows F11 on siemens controller.

I have checked spindle enable signal thru relay CR1(seems ok). I can command gcode to turn spindle and spindle will run, but as soon as I run machine the alarm will come on when spidle should start up.

I have verified that the speed control voltage to siemens controller is working and changes voltage dependent on rpm.

I am not sure what voltage (24 or 0) START SPINDLE on CR2 should have and should this change only when the spindle is running? THe output wires 61 and 62 both have 24 volts all the time?

I swaped around relays CR1, CR2 and CR3 to verify it is not a failed relay.

Any help appreciated.

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