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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 driv…

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

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.

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

LR/RF

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.

L2 θ-axis L2 Z-axis

L1 θ-axis L1 Z-axis

40044535

L4 θ-axis L4 Z-axis

L3 θ-axis L3 Z-axis

40044535

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

L1, 2 Z/θ-axis

L3, 4 Z/θ-axis

L5, 6 Z/θ-axis

Rev. 1.00

FX-3R Maintenance Guide

13-33

13-6-2. LED Indications

Nine LEDs are mounted on the Zθ-servo amplifier.

These LEDs show the status of each axis as described below. The following shows the

correspondence among each axis and LEDs.

Table 13-6-2-1 Zθ-Driver LEDs

No. LED name Indication color

Operation

1 CHARGE Lights up when any electric charge exists in the main circuit.

2 RD1 Green

3 AL1 Red

Shows the status of axis No. 1 (L2θ-, L4θ-, and L6θ-axis).

For details about the status expressed by the combination of RD1 and

AL1, see the Table below.

4 RD2 Green

5 AL2 Red

Shows the status of axis No. 2 (L2Z-, L4Z-, and L6Z-axis).

For details about the status expressed by the combination of RD2 and

AL2, see the Table below.

6 RD3 Green

7 AL3 Red

Shows the status of axis No. 3 (L1θ-, L3θ-, and L5θ-axis).

For details about the status expressed by the combination of RD3 and

AL3, see the Table below.

8 RD4 Green

9 AL4 Red

Shows the status of axis No. 4 (L1Z-, L3Z-, and L5Z-axis).

For details about the status expressed by the combination of RD4 and

AL4, see the Table below.

The following shows the operation status expressed by the combination of RD∗ and AL∗.

Table 13-6-2-2 Combination of Zθ-Driver LED Lighting and Flashing Statuses

RD∗ AL∗

Status

Flashing Flashing

Controller is not connected (immediately after

the power has been turned ON).

Flashing Off

Servo is OFF.

Lit Off

Servo is ON.

Off Flashing Warning occurs.

Off Lit

Alarm occurs.

Lit Lit

S/W installation status

Off Off

Control power is OFF.

LED

Figure 13-6-2-1 LEDS of the Z/θ amplifier

Rev. 1.00