M4serviceManual_e - 第27页
2 Periodical Checks 2-3 Nozzle Clean nozzles if dirty. Replace if deformed. Feeder Bank Clean front and rear feeder banks. Make sure tape feeders are set on bank securely. If not, it may cause head collision. MX-20 (Opti…
2 Periodical Checks
2-2
Daily Checks
Visual Check
Check the followings before turning on the main switch and power switch of the mounter.
NOTE: Power source and air supply must be in the ON state.
ITEM DESCRIPTION
Temperature and Humidity
Check the temperature and humidity.
Ambient Temperature: Accuracy assurance 23 +/-2 degrees centigrade
Operation assurance 5 to 40 degrees centigrade
(The average over a period of 24 hours does not exceed 35
degrees C.)
Relative Humidity: 45 to 60 percent, non-condensing
Room Environment
If air is dusty, check air filters.
If mounter surface rusts as a result of corrosive gas, check vents, reflow ovens,
and board cleaners.
Air Supply
Make sure air pressure of regulator is 0.49 MPa (5kg/cm
2
).
If drain cock contains water, drain it. (Adjusting temperature of dry air may be
required.)
If drain contains oil, investigate the cause.
Reject Tray (Front & Rear)
Make sure of the setting direction of the reject tray.
Make sure that the ends of the reject tray and the tape guide (on which station No.
sticker is placed) meet.
Make sure that the reject tray sits properly and is not lifted by electronic
components.
Conveyor
Make sure conveyor width of all the peripherals are the same.
Make sure no obstacles are on conveyor.
Head Moving Range
Make sure no obstacles are in head moving range, e.g. on the adjust plate.
Scan Camera
Check mirror and lens for dirt and flaw. Clean if dirty.
Note: If dust settles or condensation occurs on the mirror, the reflectance drops,
causing illumination to need to be brighter. This may lead to a drop of recognition
rate. To avoid this, always keep the mirror clean.
)
”Camera” in 3 Mechanical Section.
Fixed Camera
(Optional for M4e/M4s)
Make sure no obstacles are on half mirror, lens, or lens filter of fixed camera, and
check those parts for dirt. Clean if dirty.
)
”Camera” in 3 Mechanical Section.
ANC
Make sure no obstacles are around ANC tower.
2 Periodical Checks
2-3
Nozzle
Clean nozzles if dirty. Replace if deformed.
Feeder Bank
Clean front and rear feeder banks.
Make sure tape feeders are set on bank securely. If not, it may cause head
collision.
MX-20 (Optional for M4e/M4s)
Make sure no obstacles are on pallets.
MXR-20 (Optional for M4e/M4s)
Make sure no obstacles are on pallets.
MX-ST2 (Optional for M4e/M4s)
Make sure no obstacles are on pallets.
Input/Output Terminal Assembly
Check connections of connectors and air hoses.
【NOTE】 Fixed Camera and Tray Unit (MX-20, MXR-20, MX-ST2) are optional for M4e/M4s only. They are not
optional for M4a.
2 Periodical Checks
2-4
Manual Check
Check the followings after turning on the main and power switches of the mounter.
If the mounter conditions or movements are not normal, an error message will appear on the CRT. Refer to
error messages in the reference manual.
ITEM DESCRIPTION
Power switch
Check if display of MENU screen is normal after starting system.
Servo switch
Check if indicator lights when switch is pressed.
If not, turn off system and turn it on again.
EMERGENCY STOP
switch
Check function by pushing and releasing it.
Origin
Check if heads return to origin properly.
R axis (Theta axis) orientation
(See [NOTE] description
below for details.)
After “Origin” command is performed, check R axis orientation on each
head is normal.
)
3.Mechanical Section /Lubrication/ Lubrication Points for Spline
Shaft
Jog
Check if display of head coordinates is proper.
Make sure there is no unusual noise when head is traveling.
Suction
Check if negative pressures of all heads are within range.
Conveyor
Check conveyor movement by transferring PCB.
Stopper
Check stopper movement.
Clamp
Check clamp movement.
ANC
Check ANC movement.
Head
Check head movement.
Signal I/O
Check capability of sensors in Signal I/O screen.
Refer to reference manual.
Air Pressure
Check head/nozzle choke and solenoid valve failure.
)
3 Mechanical Section.
NOTE: If R-axis (Theta axis) is rotated by hand during machine power OFF or Servo OFF condition, the R-axis
origin may shift 180 degrees away after the Origin Initialization. That would not occur under normal
operation, but be sure to check the R-axis orientation at Origin if you rotated the R-axis by hand for any
purposes. In case of M4e/M4s, this problem would not occur.
How to check R-axis origin position;
After returning R-axis to Origin, check
that the hole of origin-sign on the Nozzle
holder faces to machine front.
That is the correct orientation of R-axis at
origin.
Nozzle Holder
The hole of Origin-sign