IAI America RCS-C - Manual (Page 22)

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[5]
Port switch (PORT)
ON: The PORT IN port (teaching pendant/PC software) becomes active. If a dedicated teaching pendant
or cable is not connected to this port, the controller will recognize an emergency-stop condition.
OFF: The PORT IN port (teaching pendant/PC software) becomes inactive. (Controller-to-controller
communication is possible.)
[6]
Main communication port connector (PORT IN)
A connector for receiving the communication cable from a dedicated teaching pendant or external
equipment. It also receives a controller link cable when two or more axes are connected.
[7]
Regenerative resistor connector (RB)
A connector for regenerative discharge resistor.
The controller will come with a regenerative resistor if the specified actuator capacity is 30 W or above.
However, connection is basically optional, and it should be connected when a regenerative discharge
error occurs. The error code of the regenerative discharge error is “0C9.”
[8]
Power/emergency-stop terminal block
EMG: Both terminals are used to connect an emergency-stop switch. (The controller is shipped with the
EMG terminals shorted.)
24V: Connect the positive side of the 24-VDC power supply.
N:
Connect the negative side of the 24-VDC power supply.
[9] LEDs
RDY (green): Indicate that the CPU is operating normally.
RUN (green): This LED turns on while the actuator is moving.
ALM (red): This LED remains lit while an alarm is present.
ENC (orange): This LED turns on when the encoder cable is open or otherwise the encoder cannot be
recognized.
[10] Encoder/brake connector (ENC)
A connector for encoder/brake power cable.
[11] Piano switches 3
Switches for selecting the encoder voltage. Use these switches if a custom cable is used and possibility of
voltage drop must be taken into consideration.
Set switches 1 and 2 to ON or OFF in accordance with the cable length.
Note: All piano switches are designated as Nos. 1, 2, etc., from the bottom.
With the piano switch in front of you, tilt it to the right side to turn on the switch, or tilt it to the
left side to turn off the switch.
[12] Piano switches 2
1 (bottom): ABS-CLR. Clear the absolute encoder data. Set this switch to ON when performing an
absolute reset. --- Normally OFF
2 (top): FWP. Write protect switch. Set this switch to ON when performing a remote upload.
--- Normally OFF
1 2 Cable length
ON OFF 1 to 5 m
OFF ON 5 to 10 m
ON ON 10 to 15 m