Overview.
This card is the latest addition to the C11 Multifunction CNC Board
family of breakout boards. It incorporates a microcontroller that runs programs
that monitor the drivers, e-stop and perform other functions.
Features
Monitors E-Stop, Safety Charge Pump, and Drivers (it only monitors
(G320/340 drives at this time).
Enables and disables the drivers.
Buffered outputs. All inputs and outputs are buffered through
the use of high speed and high power buffers. Each pins deliver 24
milliamps.
Built-in Safety Charge Pump. There is an on-board safety charge
pump, which is a circuit that acts a watch dog by monitoring that mach
is in control of your system. Mach can be programmed in a way, so when
it is in control, it delivers a 12.5 KHz signal through one of the
ports. This card lets you use this signal to work as an On/Off Switch
for your system, enabling a powerful safety system for your equipment.
If you ever had windows crash on you, then this card is for you. The
parallel port can also do weird things while the system is coming up, or
down.
Built-in Variable Speed Control. It has an optoisolated
analog 0-10VDC output that will convert a step signal into an analog
signal that can be used to command a commercial VFD. This analog can be
adjusted using on-board pot, so this board can be adjusted to other
voltages.
Built-in 10 amp AC Solid State Relay. It is very useful to
use a solid state relay instead of a electro-mechanical relay for
starting motors or other devices that might produce arcs at contact.
This will increase the life of the motors and relay. This relay is also
optoisolated from the rest of the board and has a replaceable fuse.
Built-in 8 amp Solid State Relay with NO and NC positions.
Mechanical relays are very flexible because they can be used for AC or
DC and come with NO and NC (Normally Open and Normally Closed)
positions. This relay can also be used for controlling spindle rotation.
The common terminal to pins 2-9 can be ground or +5vdc. The
common terminal to pins 2-9 can be ground or +5vdc. When you
select program for the driver to used, COM will automatically become
what the driver will need. If you select the program for the G320, COM =
+5vdc, if you select the program for the G203V, COM = GND
Microcontroller Based System. The microcontroller based system
allows the implementation of complex algorithms for monitoring the
system. It also allows the possibility of having firmware upgrades
without having to change the board and rewire your system.
E-Stop Connection. The E-Stop connection performs several
functions:
- It will disable the outputs directly, without
having to wait for the control to disable the system.
- It will trigger the control on Pin 10, when the
e-stop condition is met.
- If open, it will keep the system on stand by.
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