mach3 wont reset keeps saying external emg stop requested

[Geoff57]

hi Jazz
is the BOB, in my second picture the board in the middle i noticed today there is a red led lit up
sorry but what is PSU i have a multimeter so i can check voltages
Geoff

[Clive S]

hi Jazz
is the BOB, in my second picture the board in the middle i noticed today there is a red led lit up
sorry but what is PSU i have a multimeter so i can check voltages
Geoff

PSU = power supply. Also check if you have 5V as it seems you have a usb providing that and some usb's don't supply enough current.

As Jazz says you need to supply the bob with two sources on power ie 5V and another somewhere about 12-24V where Jazz indicated on the picture

Edit: do you actually have a 5v power supply in there because if you do you don't need the USB cable connected

[JAZZCNC]

hi Jazz
is the BOB, in my second picture the board in the middle i noticed today there is a red led lit up
sorry but what is PSU i have a multimeter so i can check voltages
Geoff

Yes Geoff, PSU = power supply unit. It will be the small one in this picture and test the V++ V-- highlighted in pic. The PSU will probably have sticker telling you the voltage Output. 12 or 24Vdc



Edit: Opp's didn't see Clive beat me to it, same as what he said...Lol

[dazp1976]

I have the same board matey.
Do you have a 12v-24v supply in there?

These boards limits, probe, spindle and e stop are supplied seperately on these to keep the inputs isolated on the 5v.
You need a 12v-24v to supply all of the above.

It's on the right in the picture:

[dazp1976]

I have the same board matey.
Do you have a 12v-24v supply in there?

These boards limits, probe, spindle and e stop are supplied seperately to keep the inputs isolated on the 5v.
You need a 12v-24v to supply all of the above.

It's on the right in the picture:

[Geoff57]

morning all
on the two psu s there is a green led on the larger unit it is lit up on the smaller unit it is not, does this mean the unit is dead ?
thanks Geoff

[Clive S]

morning all
on the two psu s there is a green led on the larger unit it is lit up on the smaller unit it is not, does this mean the unit is dead ?
thanks Geoff

Geoff. Do you have a DVM ? a meter to test the voltage AC and DC . If so can you check what voltage you are getting from each PSU on the DC terminals.

The smaller PSU should be putting out about 12-24V if it is not doing so then you need to check if it is getting 230V AC on the input. There may be a loose connection or a fuse blown.

[Geoff57]

hi Clive
yes i have dvm i assume L N are 240 volt but how do i check the v- v+ do i put the black probe on v- and red on v+ sorry im not up on electronics
thanks Geoff

[JAZZCNC]

hi Clive
yes i have dvm i assume L N are 240 volt but how do i check the v- v+ do i put the black probe on v- and red on v+ sorry im not up on electronics
thanks Geoff

Yes Geoff black on V- Red on V+ but you'll need to change the meter from reading AC to DC.

[Clive S]

hi Clive
yes i have dvm i assume L N are 240 volt but how do i check the v- v+ do i put the black probe on v- and red on v+ sorry im not up on electronics
thanks Geoff

Yes. If you get them the wrong way round it will just measure -ve. make sure the meter is set to DC and AC for the mains side. Be careful .

Edit: I had not refreshed by browser so didn't see Jazz post.. Just to make sure that there is not a short on the output make a good pic. and remove all the wires on the DC side and check again.