c900795.R02_EN.pdf - 第37页
2 Periodical Checks 2-3 Manual Check Check the following s after turning on the main and servo switch of th e unit. If the unit conditions o r movements are not normal, an error message will appear on the LCD. Refer to e…
2 Periodical Checks
2-2
Daily Checks
Visual Check
Check the followings before turning on the main switch and the ready switch of the unit.
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 15 to 35 degrees centigrade
(The average over a period of 24 hours does not exceed
30 degrees C.)
Relative Humidity：20 to 90 percent, non-condensing
Altitude ：Less than 1000m (above sea level)
Room Environment
If air is dusty, check air filters.
If unit surface rusts as a result of corrosive gas, check vents, reflow ovens, and
board cleaners.
Air Supply
Make sure air pressure of regulator is 0.45 MPa
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.
Input/Output Terminal Assembly
Check connections of connectors and air hoses.
2 Periodical Checks
2-3
Manual Check
Check the followings after turning on the main and servo switch of the unit.
If the unit conditions or movements are not normal, an error message will appear on the LCD. Refer to error
messages in the reference manual.
ITEM DESCRIPTION
Main switch
Check if display of MENU screen is normal after starting system.
Ready 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.
Jog
Check if display of head coordinates is proper.
Make sure there is no unusual noise when head is traveling in each axis (X,Y,Z
and Theta). .
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.
Main Clamp
Check main clamp 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.
X-Y Table
Make sure X and Y axes and ball screws do not give unusual noise when traveling
head.
Check that proper amount of grease is provided.
2 Periodical Checks
2-4
Monthly Check
Check the followings once a month.
ITEM DESCRIPTION
LCD
Clean LCD screen if it is dirty.
Cable
Make sure screws on cable and cables supports are not loose.
Check cables in cable-support stay.
Connector
Make sure connectors are not loosened.
Air Hose
Check piping and joints. Check air hose for leakage.
X-Y motors
Make sure X and Y motors are not abnormally heated.
Theta Motor
Make sure there are no flaws on timing belt and gear.
Make sure there is no interference when head is rotating.
Make sure head torque is enough.
Z Motor
Move head up and down to make sure movement is smooth.
Push up a nozzle with your finger to check if movement is smooth.
Suction
Check negative pressure of all heads. If values of negative pressure are not proper,
clean filters in nozzle shafts. Replace filters of vacuum ejector if dirty.
Conveyor
Check conveyor movement and the belt tension, make sure conveyor has no flaws,
abrasions and obstacles.
Check movement of auto-width adjustment to maximum and minimum widths,
and confirm conveyor parallelism and board transfer at entrance and exit.
Stopper
Confirm that Stopper works normally and has no abnormal sound, check no chip
components or other obstructions attached on the stopper.
Main Clamp
Check flaws and abrasions.
Buffer Stopper
Check flaws and abrasions.
Camera Illumination
Confirm that illumination is working and check brightness.
Operation Switches
Check if all actuators work properly in the Signal I/O screen.
Check emergency stop switch.
Alarm Beacon
Check if all lamps light.
Make sure it is fixed securely.
Hazard Alarm
(continuous high-pitched
tone)
Check if alarm sounds.
Warning Alarm
(intermittent high-pitched
tone)
Check if alarm sounds.
Cameras
Execute “VISION TEST” and check result.