KE-750_MAINTE.pdf - 第124页
- 121 - 5.2 Function of Boards 5.2.1 SUB CPU1 board (1) Controls all boards in the cont rol unit, and performs data transfer and interrupting process, etc. (2) Performs communication (Arcnet) with the man-machine CPU. (3…
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Board assembly list
Board assembly E part number KE-750/760
No. Part number Part name Remarks
1 E8601 721 0A0 SUB CPU 1 board assembly
2 E8602 721 0A0 AC SERVO control board assembly
3 E8604 721 0A0 I/O CONTROL board assembly
4 E8607 721 0A0 HEAD MAIN board assembly
5 E8609 721 0A0 CAL BLOCK board assembly
6 E8610 721 0A0 IMG-P board assembly
7 E8611 725 0A0 ARCNET board assembly
8 E8612 721 0A0 OCC LIGHT board assembly OCC light (Left)
9 E8615 721 0A0 0.4VCS LIGHT board assembly KE-760 only
10 E8617 721 0A0 CARRY board assembly
11 E8618 721 AA0 FEEDER I/F board A assembly To be installed in the main unit
12 E8618 721 0A0 FEEDER I/F board assembly To be installed in the bank
13 E8621 721 0A0 BGA LIGHT board assembly KE-760 only
14 E8631 721 0A0 MATCHING board assembly
15 E8651 721 0A0 HEIGHT SENSOR board assembly Option (NOTE)
16 E8652 721 0A0 0.3VCS LIGHT board assembly Option for KE-760
17 E8614 725 0A0 FEEDER UNIT board assembly
18 E8615 715 0A0 FEEDER BANK board assembly
19 E8624 715 0A0 BOC LIGHT board assembly OCC light (Right)
20 E8601 725 0A0
Z/θ CONTROL board A assembly
KE-760 (AA0)
21 E8603 725 0A0 OPERATION board assembly
22 E8602 725 0A0 Power supply unit board assembly To be installed in the power supply
unit (NOTE)
23 E8604 725 AA0 OPERATION SW board A assembly Rear
24 E8604 725 0A0 OPERATION SW board assembly Front
25 E8605 725 0A0 HEAD MOTOR board A assembly KE-760 (AA0)
26 E8606 725 0A0 BASE UNIT board assembly
27 E8620 721 0A0 BACK BOARD board assembly Purchased parts
NOTES:
No.15 The HEIGHT SENSOR board assembly is to be inserted into the connector of the HEAD
MAIN board.
No.22 The power unit board assembly is the board for the connector panel of the power supply
unit.
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5.2 Function of Boards
5.2.1 SUB CPU1 board
(1) Controls all boards in the control unit, and performs data transfer and
interrupting process, etc.
(2) Performs communication (Arcnet) with the man-machine CPU.
(3) Performs communication (RS-422) with the LA/LAHD sensor.
(4) Performs transmission/reception to/from the MATCHING board.
(5) Stores the MS parameters (EEROM).
(6) CPU: 68020 (25 MHz), FPU: 68882 (25 MHz), Memory: DRAM (4 MB),
SRAM (128 KB), EEROM (16 KB)
5.2.2 AC Servo Control Board
(1) Controls the AC servo motor of XY axes by the command of pulse train.
(Origin return operation, automatic acceleration/deceleration operation,
JOG operation, and origin sensor detection)
(2) Controls the positioning. (Speed control: Performed with the rotary
encoder of the motor. Positioning control is performed by counting the
number of pulses from the magnescale.)
(3) Performs alarm processing. (The AC servo motor is immediately stopped
when the alarm of the AC servo motor driver, the alarm of the magnescale,
or ± limit of the X and Y axes is detected.)
(4) Performs emergency stop function. (The AC servo motor of the XY/Z/θ
axes is immediately stopped when the emergency stop button is pressed.)
(5) Performs servo free function. (The driving power of the AC servo motor of
the XY/Z/θ axes is decreased and the XY/Z/θ axes are set free when the
servo free switch is pressed.)
(6) CPU: 68000 (10 MHz), Positioning management counter: 24 bits
5.2.3 Z/θ Control Board
(1) Controls the AC servo motor of the Z/θ axes by an analog command.
(Origin return operation, automatic acceleration/deceleration operation,
JOG operation, and zero phase detection)
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(2) Performs positioning control. (Speed control and positioning control are
performed with the rotary encoder of the motor. However, the speed
control of the IC head on the KE-760 is performed with the rotary encoder
but the positioning control is performed with the dedicated encoder of
18000 pulses. This is necessary because a high resolution is required for
the IC head which is a dedicated head used to mount the parts such as
QFP, etc.
IC head θ: 0.005°, Z: 0.01 mm
General chip head θ: 0.02°, Z: 0.01 mm
(3) Performs alarm processing. (The AC servo motor is immediately stopped
when the alarm of the AC servo motor driver is detected.)
(4) Supplies +5/12/24 VDC power to the head main board.
(5) Controller IC: LM628
5.2.4 I/O control board
A serial data of 16-bit length is used to communicate between the I/O control
board and another unit board. The relation ship between the I/O control board
and each unit board and the function of the board are explained here. CPU:
68000 (12 MHz) on the I/O control board performs the control of each unit
board.
(1) Head main board (Head unit)
① Drives the solenoid for vacuum and blow.
② Reads the vacuum data detected with the vacuum sensor (R).
③ Detects the deceleration sensor of the Z axis (R).
④ Turns on and off the bad mark sensor (W), and reads the detected
value (R) (Optional).
⑤ Performs interface to the height sensor board (Optional).
(2) Carriage unit board (Carriage unit)
① Drives the BU (backup pin), the stopper pin, and the solenoid for
outline (W).
② Detects the IN/WAIT/CENT/OUT/BU-up/BU-down sensors (R).
③ Drives the induction motor for IN/OUT (W).
④ Drives the stepping motor for CENT (the data of pulse rate, speed,
moving distance, etc.) (W)
⑤ Turns on and off the 1st and 2nd marks of the CAL block (W).
⑥ Opens (W) and checks (R) of the ATC.
⑦ Moves up and down (W) the bank of the tool change table, and its
check (R).