FlashCut CNCFlashCut CNC SectionSection 22 Hardware GuideHardware Guide44
DC IN - Receptacle for the power supply. The unit is shipped with a 9V
DC, 800-1000mA wall transformer power supply.
Fuse - Cartridge for the fuse. If the fuse blows, replace it with a 3AG,
1.5A slow-blow fuse.
RS-232 - Serial port connector for communication with the host PC ( 9 pin
female). Most PC’s have 9 pin male or 25 pin male. Use either a 9 Pin
Male - 9 Pin Female or a 9 Pin Male - 25 Pin Female cable depending on
the serial port on your PC.
INPUT - The connector for up to 8 input lines. The most common use of
the input lines is for limit or safety switches. These lines are all TTL level
inputs. When a switch is open, its input signal is high (+5V). When the
switch is closed, its input signal is grounded low (0V).
The 401A is wired for normally closed (NC) switches. Each line that is not
connected to a switch must be wired directly to its ground. When any of
the input lines are open the red limit light will illuminate and a signal will be
sent to the host PC to indicate which input line(s) went high. You can use
normally open (NO) switches, however the red limit light will not function
properly. Note that all 8 input lines must be normally open, or all 8 input
lines must be normally closed. If you are not using the input lines, the limit
light will always be illuminated.
If you are using normally closed switches, make sure the Signal Generator
Model 401A option is chosen in the System Options setup screen. If you
are using normally open switches, make sure the Signal Generator Model
401 option is chosen in the System Options setup screen. All input lines
must be properly defined in the Input Lines Setup screen .
BE VERY CAREFUL WHEN DOING ANY WIRING. IMPROPER
WIRING WILL DAMAGE THE MOTOR SIGNAL GENERATOR.
The receptacle that plugs into this connector is a Molex-Waldom Mini-Fit
Jr. Series 16 pin receptacle (part number 39-01-2160), with female pins
(part number 39-00-0039). The input lines as seen from the back of the
box are arranged as follows:
GGGG
GGGG
8642
7 5 3 1
OUTPUT - The connector for up to 8 output lines. These lines are all
optically isolated, TTL level outputs. Low is 0V and high is +5V.
