Wiring Outputs
Before we discuss the output conditions, we need to talk about the circuitry. All three FSC-01
outputs are optically isolated. That means that there is no electrical connection between the
motion controller and the output terminals. The signal is transmitted to the output as light. What
you “see” is a transistor (NPN type) that closes, or conducts current, when the output is “low.”
When the output is high, the transistor is open.
At power-up, the FSC-01 sets all three programmable outputs high (open circuit).
The maximum voltage between any pair of + and - output terminals is 24 volts DC.
Never connect AC voltages to the FSC-01 output terminals. Maximum current is
100 mA per output.
Since there is no electrical connection to the FSC-01, you must provide the source of current and
voltage, typically from an external power supply. You must also limit the current to less than 100
mA so that the output transistor is not damaged. You would normally use a resistor for this, but
some loads (such as PLC inputs) limit the current automatically.
The diagrams below shows how to connect an FSC-01 output to various types of optically isolated
PLC inputs.
330
Ω
+5V
OUT1–
OUT1+
Optoisolator
NEC PS2502
or equiv.
FSC-01
Controller Chip
inside FSC-01
Schematic Diagram of FSC-01 Output Circuit
Installing the PHD Programmer
Software
• Please refer to the PHD Programmer Software Manual under “Installing the Programmer
Software” for detailed installation instructions.
Connecting to the PC
• Locate your computer within 6 feet of the FSC-01.
• Your FSC-01 was shipped with a black adapter plug. It has a telephone style jack at one end
and a larger 9 pin connector at the other. Plug the large end into the COM1 serial port of your
PC. Secure the adapter with the screws on the sides. If the COM1 port on your PC is already
used by something else, you may use the COM2 port for the FSC-01. On some PCs, COM2
will have a 25 pin connector that does not fit the black adapter plug. If this is the case, and
you must use COM2, you will have to purchase a 25 to 9 pin serial adapter at your local
computer store.
• Your FSC-01 was also shipped with a 7 foot telephone line cord. Plug one end into the
adapter we just attached to your PC, and the other end into the RS232 jack on your FSC-01.
Never connect the FSC-01 to a telephone circuit. It uses the same connectors and
cords as telephones and modems, but the voltages are not compatible.
Programming Note: Always apply power to FSC-01 after the PHD Programmer
software is running on your PC.
FSC-01
+5 VDC
STEP–
DIR–
Driver
+5 VDC
STEP
DIR
Connecting to a Driver with Common Anode Inputs
Connecting to a Driver with Common Cathode Inputs
FSC-01
GND
STEP+
DIR+
Driver
GND
STEP
DIR
-8-
-13-
OUTPUT -
COMMON
INPUT
24 VDC Power
Supply
+
-
FSC-01
Motion
Controller
PLC With
NPN Input
Diagrams continued on next page.
Typical diagram for interfacing an FSC-01 output to an NPN type PLC input.
(Note: Power supply may be built into PLC and internally wired to the common)