Lost power to the coolant pump

[RA-Bowtie]

G'day guys,


Had an odd thing happen the other day. I suddenly lost power to the coolant pump.


I've got an 1100 - Series 3


I opened the cabinet and checked (with a Multi-meter) and there's no power at the socket, that the pump (power lead) is plugged into.


If I toggle the Coolant button on Path Pilot, I can hear a "click", but still no power. I did the obvious and checked all the fuses and they're all ok.


Anyone had this problem before or have any ideas?


Michael

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[jwatte]

The relay could have failed (even though it's clicking.) Or somewhere between cabinet input and relay could have failed. Or some wire could have come loose because of vibrations. Or some fuse can have blown (although you already checked this.)
Hook up the meter and follow the signal into the relay and then out of the relay.

[RA-Bowtie]

The relay could have failed (even though it's clicking.) Or somewhere between cabinet input and relay could have failed. Or some wire could have come loose because of vibrations. Or some fuse can have blown (although you already checked this.)
Hook up the meter and follow the signal into the relay and then out of the relay.

Thanks for the info.... now all I have to do is find the relay.
I'm not that good at reading wiring diagrams, but I'll give it a try.

Michael

[popspipes]

check for loose leads in the circuit, blown fuse etc.

When I ran coolant and didnt use it for awhile sometimes the pump will just seize up, I used to have to rotate the shaft and then it would be ok for awhile.

[RA-Bowtie]

check for loose leads in the circuit, blown fuse etc.

When I ran coolant and didnt use it for awhile sometimes the pump will just seize up, I used to have to rotate the shaft and then it would be ok for awhile.

As mentioned, I don't have any power to the socket, that feeds (power) to the pump.
I'm actually working on it now, but I'm not very good at this sh!t.

Thanks for the input.

Michael

[popspipes]

As mentioned, I don't have any power to the socket, that feeds (power) to the pump.
I'm actually working on it now, but I'm not very good at this sh!t.

Thanks for the input.

Michael

Here the pump is 120V, I think yours is 220V, or they may use a stepdown transformer to power it if its 120V, may be a fuse in that circuit thats blown??

[RA-Bowtie]

Here the pump is 120V, I think yours is 220V, or they may use a stepdown transformer to power it if its 120V, may be a fuse in that circuit thats blown??

I've checked every fuse and they're all ok.
I'm going to send Tormach an e-mail and see if they can help me out.

Michael

[jwatte]

You're saying the relay is clicking, so you can find it by turning it on and off and following the sounds :-)

[RA-Bowtie]

You're saying the relay is clicking, so you can find it by turning it on and off and following the sounds :-)

G'day mate,

I'll post a picture that shows the relay in question.

As I mentioned, I can hear it "click", when I click on the Coolant icon in Path Pilot.

Michael

[RA-Bowtie]

Here's the socket, that (as I mentioned) has no power going to it and also the relay.

Michael

[john-100]

have you lost coolant power with the switch in manual ?
are the outlets for the PC & monitor working ?

if you have just lost coolant pump power in auto

you will need to check the the coolant pump switch

and the fuse on the PCB - not sure from your photo if its F2 or what I expect is F1 next to the relay
( I can not read the marking on the PCB)

the middle wire 204 (common) on the coolant pump switch should go to the live / hot terminal on the coolant pump outlet
the outer two wires on the switch should go to the relay terminals on the PCB

download the manual
UM10349_PCNC1100_Manual_0916A_WEB

https://www.tormach.com/support/wpdm...ual-0916a-web/

the readable copy of the wiring diagram is on the last page

John


PS

going by the manual , your photos and this photo off the net





this is how the 110V supply is connected to the coolant pump



if you connect wires 202 & 205 together and the pump runs in auto
you will know the fault is on the PCB

I am not 100% sure if J5-1 on the PCB goes to the on board fuse or the relay contact

you will have to check with your meter to see
if the fuse is connected to J5-1 and relay contact to J5-2 or vise versa


wire 202 is the live to the PC outlet switch
wire 203 is the switched live to the PC supply outlet



PPS

[john-100]

the photo's are too low a resolution to read the part number on the relay but

I expect the relay to be like this -




data sheet
https://docs-emea.rs-online.com/webd...6b8142189a.pdf


John

[RA-Bowtie]

the photo's are too low a resolution to read the part number on the relay but

I expect the relay to be like this -




data sheet
https://docs-emea.rs-online.com/webd...6b8142189a.pdf


John

Hi John,


Thanks for all the info, it really was a big help.


That is, until I realised that I had a major "brain fart" and (wrongly) thought that the 204 wire was power
coming in from the master switch.... Doh!


A couple of days ago I had crawled under the enclosure and my back had dislodged the power socket, from
the wall....Sh!t !!


At least your help pointed in the right direction, thanks for that.


Michael

[john-100]

A great result having a working machine
problem solved without generating additional faults

Been there got the T shirt

At the end of a long day you can get fixated on one part of the problem and not see the whole picture
only after a break do you see whats wrong

glad my reply helped

John

[jwatte]

my back had dislodged the power socket, from the wall

I hate it when that happens! "is it plugged in" is something I have to ask myself with some frequency ...

Glad you got it working!