
FX-3R Maintenance Guide
13-18
13-4-3. Position Board (40044540)
[Functions]
This POSITION board is applicable to the CPCI bus and intended to control servomotors
through the SSCNET III, Mitsubishi Electric
’
s high-speed synchronous communication network.
The POSITION board can control up to 32-axis servomotors per board.
The POSITION board is connected to the servo amplifier of each axis through daisy chain
connections of optical fiber cables.
c
A command is received from the CPU board software to control the XYZ
θ
-axis servomotor.
d
The home position sensor and limit sensor of each axis are detected.
e
An alarm is detected that occurs in the servo amplifier or magnescale.
f
The emergency stop switch is detected to stop the XY-axis and Z
θ
-axis.
[Switch settings]
Since the FX-3R uses two position boards, the settings may vary depending on the position
board, which has been replaced.
The settings are shown below. (
portions show the switch positions.)
Change the settings
with the POS1 or
POS2 switch.
POS1
SW-1 :OFF
SW-1 :OFF
SW-1 :OFF
SW-1 :OFF
POS2
SW-1 :ON
SW-1 :OFF
SW-1 :OFF
SW-1 :OFF
POS1
POS2
Figure 13-4-3-1 DIP switch on Position Board
∗
POS1 switch is used for the left station while POS2 switch is used for the right station.
[Meaning of LED]
Operation indicator LED (Green): Lights up when the power is turned ON, flashes when the
system is started up, goes off when the power is shut-down.
Error indicator LED (Red):
Off during normal operation, Lights up if an error occurs.
[Adjustment items after replacement]
There are no particular adjustment items.
Rev. 1.00