javeria
Mon 30 November 2009, 07:02
Hi All,
I have based on my general PCB designs worked out PCB designs which use 24V DC to powerup all proximities, switches etc, via relay and also 817 opto isolators, I am making a few PCB's for my own use - was wanting to know if anyone else was interested, as the relay's and connectors are locally obtained and may have a foot print issues the boards might have to be provided completely assembled.
there are 3 boards totally.
1. Power supply board - which splits the incoming DC into 4 channels via fuses.
2. Interface board - to be mounted in the cabinet - this one has all the relay and optoisolators to be connected to the bob, the relays and optoisolators will convert the 24v signals to the on - off ones required by the BoB's,
this board also has a relay which can be used to switch on and off the water coolant pump / fan for the spindle separately in case of water cooled and air cooled spindles respectively. it has in and out connects for 5v dc supply, and also 24V for more 24dc fans.
3. Proximity and other signal board - mounted on the machine, it will have space for all the relays which are switched on/off by the proximities or otherwise, it will also have connectors for all the start stop switches / auto z zero etc.
note that the credit of the design goes to the forum directly - and my feeling is that there is a lot of scope for improvement , and these are not a necessity but just convenience.
there is no price fixed,(it will be bare minimum for Mechmater's) but I would like to know if any one is interested so that I can order more PCB's
RGDS
IRfan
I have based on my general PCB designs worked out PCB designs which use 24V DC to powerup all proximities, switches etc, via relay and also 817 opto isolators, I am making a few PCB's for my own use - was wanting to know if anyone else was interested, as the relay's and connectors are locally obtained and may have a foot print issues the boards might have to be provided completely assembled.
there are 3 boards totally.
1. Power supply board - which splits the incoming DC into 4 channels via fuses.
2. Interface board - to be mounted in the cabinet - this one has all the relay and optoisolators to be connected to the bob, the relays and optoisolators will convert the 24v signals to the on - off ones required by the BoB's,
this board also has a relay which can be used to switch on and off the water coolant pump / fan for the spindle separately in case of water cooled and air cooled spindles respectively. it has in and out connects for 5v dc supply, and also 24V for more 24dc fans.
3. Proximity and other signal board - mounted on the machine, it will have space for all the relays which are switched on/off by the proximities or otherwise, it will also have connectors for all the start stop switches / auto z zero etc.
note that the credit of the design goes to the forum directly - and my feeling is that there is a lot of scope for improvement , and these are not a necessity but just convenience.
there is no price fixed,(it will be bare minimum for Mechmater's) but I would like to know if any one is interested so that I can order more PCB's
RGDS
IRfan