Process Lens PL Service Manual_EN - 第9页
1 Introduction Se rv ic e Ma nu al P ro ce ss L en s PL - 0 3/ 20 25 9 1.2 Lock out and tag out procedure 1.2.1 Purpose and scope Before performing any preventive maintenance work, conversion work or service work, a proc…
1 Introduction
8 Service Manual Process Lens PL - 03/2025
1.1.5 Notes on switching the machine back on
CAUTION
Residual voltages
► After switching off the machine, wait at least 10 seconds before you switch it back on again, so
that stored residual voltages can dissipate.
► Please note that longer waiting periods apply when working on the power supply.
1.1.6 Safety instructions for the gantry
CAUTION
Moving the gantry can damage the Vision Module.
When moving the gantry, observe the following:
► NEVER move the gantry by pushing with your hands against the placement head.
1.1.7 Safety instructions on hazardous materials
CAUTION
Observe the safety data sheets
Observe the applicable safety data sheet, when handling hazardous materials (e. g. Loctite 241, eth-
anol).
1.1.8 Classification of the optical systems
1.1.8.1 Classification of the whole machine
Fig.1: Laser class 2
The ready-to-operate overall machine is as-
signed to laser class°2.
The laser classes are determined according to
DIN EN 60825-1:2014.
1.1.8.2 Laser classification
The following modules are assigned to laser class 2:
●
Laser light barriers at the board conveyor
1.1.8.3 Classification of the camera systems
WARNING
LEDs
The camera illumination systems are fitted with light LEDs. These are assigned to risk group 1 accor-
ding to IEC 62741:2006.
► Do not look into beam!
1 Introduction
Service Manual Process Lens PL - 03/2025 9
1.2 Lock out and tag out procedure
1.2.1 Purpose and scope
Before performing any preventive maintenance work, conversion work or service work, a procedure of
locking and tagging must be followed and warning signs must be attached if not stated otherwise. If it
is not necessary to switch off the machine, it is explicitly mentioned.
The procedure, when followed, correctly eliminates the possibility of an employee being injured.
NOTICE
Additional safety measures
These procedures represent the minimum lock/tag out requirements for the machine during prevent-
ive maintenance work and service work. Any additional safeguards needed to complete work safely
can be specified by facilities supervision, the safety officer, the safety committee and the health de-
partment.
1 Introduction
10 Service Manual Process Lens PL - 03/2025
1.2.2 Description
Whenever it becomes necessary to isolate, control and release energy, the following procedure is to
be followed:
► Notify affected employees.
► Shut down the equipment. Carry out all normal stopping procedures:
●
Press the Stop button.
●
Switch off the Process Lens PL inspection software.
●
Shut down the control computer.
●
Switch the machine off at the main power switch.
► Isolate the machine from all its energy sources:
●
Disconnect the main power connection.
► Lock out the machine:
●
Attach a lock whenever possible (e.g. to the main power switch).
NOTICE
Alternatively: Tag out procedure
If a machine can be locked out, it must be. However, there are situations where energy isolating
devices cannot accommodate locks. In these cases, the energy isolating devices must be tagged to
warn employees that the machine is de-energized for servicing. The tag must be securely fastened, it
must be placed in a position visible to all and it may only be removed by the person who attached it.
► Release stored energy:
Stored energy in the electrical energy in electrolytic capacitors must be released by appropriate
means.
●
After switching off the machine, wait the specified discharge time, before the machine can
be operated again without risk.
► Verify the lock out:
Testing the lock out can be done simply by pressing the start button.
► The following steps must be taken to restore the machine to operation:
●
Check the area. Authorized employees should remove all of their tools and reinstall all
guards.
●
Notify all affected employees.
●
Before removing even one lock or tag, inform all workers in the area that the machine is
going to be restarted.
●
Remove locks/tags
●
Each authorized employee must remove his or her own lock. Each authorized employee
will have his or her own lock.
●
Turn the machine on. Authorized workers should observe the equipment in operation to
ensure repairs were done correctly.
1.2.3 Testing
Service personnel may test the circuits by activating them briefly without canceling the locking method.
This may be done only when no other work is being performed by any other person on the equipment
being tested.
It is extremely important that all remote start switches be tagged with the Do Not Operate tag to pre-
vent inadvertent operation of the equipment during these periods.