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FX-3R Maintenance Guide 13-31 [Adjustment items after replacement] When replacing the servo amplifier, it is necessary to set the axis selection with the rotary switch (SW1) on the servo amplifier of each axis. Open the …
FX-3R Maintenance Guide
13-30
13-5. X-Y Unit
The X-Y unit is composed of AC servo amplifier that drives the X/Y-axes and a magnescale that
detects the movement position.
13-5-1. Structure of X-Y Unit
For the AC servo amplifiers, four AC servo amplifiers that drive the X-axis and eight AC servo
amplifiers that drive the Y-axis (twelve amplifiers in total) are mounted.
40104695
X-axis AMP
40104696
Y-axis AMP
X (LF) X (LR) YL (LF) YR (LF) YL (LR) YR (LR)
Figure 13-5-1-1 Structure of X-Y Unit (Left Side inside Base Frame)
40104695
X-axis AMP
40104696
Y-axis AMP
X (RF) X (RR) YL (RF) YR (RF) YL (RR) YR (RR)
Figure 13-5-1-2 Structure of X-Y Unit (Right Side inside Base Frame)
Rev. 1.00
FX-3R Maintenance Guide
13-31
[Adjustment items after replacement]
When replacing the servo amplifier, it is necessary to set the axis selection with the rotary switch
(SW1) on the servo amplifier of each axis.
Open the front cover of the servo amplifier and turn the rotary switch (SW1) for the axis selection
so that the arrow mark indicates the following set value.
Make sure that the DIP switch (SW2) is OFF.
After the adjustment has been completed, turn ON the power to the main unit and turn it OFF.
After that, restart the operation.
Note. When the main unit is started up for the first time after the servo amplifier has been
replaced, do not perform the origin return.
Table 13-5-1-1 Rotary Switch Settings
Servo amplifier
Axis selection switch
set values
X (LF) 0
X (LR) 1
YL (LF) 0
YR (LF) 1
YL (LR) 2
YR (LR) 3
X (RF) 0
X (RR) 1
YL (RF) 0
YR (RF) 1
YL (RR) 2
YR (RR) 3
1
2
ON
SW1
SW2
13-5-2. Display Indication of XY Servo Amplifier
A 7-segment LED that indicates the status is mounted on the front of the XY servo amplifier.
Normally, this LED shows the status as described below.
Table 13-5-2-1 7-Segment LED Indication
Indication Ab C# d#
Contents Initialization is in progress.
→
Servo OFF
→
Servo ON
∗ Axis No. is shown in the “#” portion. (See also the Table below.)
Table 13-5-2-2 7-Segment LED Indication
Axis Axis No.
Axis Axis No.
X (LF)-axes 01
X (RF)-axes 01
X (LR)-axes 02
X (RR)-axes 02
YL (LF)-axes 01
YL (RF)-axes 01
YR (LF)-axes 02
YR (RF)-axes 02
YL (LR)-axes 03
YL (RR)-axes 03
YR (LR)-axes 04
YR (RR)-axes 04
Rev. 1.00
FX-3R Maintenance Guide
13-32
13-6. Z-θ Unit
The Z-θ unit is composed of an AC servo amplifier that drives the Z/θ-axes.
13-6-1. Structure of Z-θ Unit
In the AC servo amplifier for the Z-θ unit, one driver can drive 4 axes. Therefore, 3 drivers are
installed in FX-3.
4-axis integrated type servo amplifier board for the Zθ-axis is mounted in the head unit. Actually,
three boards are mounted in the vertical direction.
Figure 13-6-1-1 shows the relationship among each motor and servo amplifier.
LF/RR
c
d
e
LR/RF
e
d
c
Figure 13-6-1-1 Structure of Z/θ Unit
∗ Motor outputs
Z-axis: 30W
θ-axis: 10W
Table 13-6-1-1 Z/θ-Unit Layout Relational Diagram
Axis No. on amplifier
Symbol
Axis No. 1 Axis No. 2
Axis No. 3
Axis No. 4
Part No.
c
L2 θ-axis L2 Z-axis
L1 θ-axis L1 Z-axis
40044535
d
L4 θ-axis L4 Z-axis
L3 θ-axis L3 Z-axis
40044535
e
L6 θ-axis L6 Z-axis
L5 θ-axis L5 Z-axis
40044535
For the Zθ-servo amplifier, set the rotary switch (CS1) appropriately according to the board.
Table 13-6-1-2 Z/θ-Unit Layout Relational Diagram
Symbol
Servo amplifier
SW set value
c
L1, 2 Z/θ-axis
1
d
L3, 4 Z/θ-axis
2
e
L5, 6 Z/θ-axis
3
Rev. 1.00