Check Of Control Panel; Check Of Securely Closing Door (Daily); Check Of Gap Or Damage Of Airtight Structure (Monthly) - Siemens YASKAWA 840DI Maintenance Manual

2.1 Check of control panel

• Confirm that the main power and the control power supplies are switched off and the CHARGE
indicator is off before starting maintenance work except confirmation of operation status. It is
insufficient for safety just to push the "POWER OFF
because some portions within CNC system are left powered.
Otherwise electric shock or damage could result.
2.1

Check of control panel

2.1.1
2.1.2
For the long and safe use of Yaskawa Siemens CNC series, never fail to execute the daily
maintenance work described below.
Be sure to shut down the power supply to the CNC system before daily maintenance except for
inspections that can be performed with the power supply for the CNC system turned on, such as
inspection for external contamination, vibration, or abnormal sound.
To shut down the power supply to the CNC system, turn OFF the MCCB (breaker for main
power supply) on (or in) the electrical control panel on the machine side. When the power
supply to the inside of the CNC system is shut down, all fans within the panel stop. Therefore,
you can check for the power supply by observing the fans.

Check of securely closing door (daily)

The system has a complete airtight structure and is so designed that external air containing oil
mists do not get into the panel. You are encouraged to make it a habitual practice to securely
close each door of the control panel all the time; this should not be restricted to the operation
time.

Check of gap or damage of airtight structure (monthly)

For a longer and stable use of Yaskawa Siemens CNC series, make sure you observe the following:
1. Open each door and check the packing on the edge of the door for damage.
2. Check the inside of the system for abnormal contamination. If any contamination is
detected, check the cause and wipe it off as early as possible.
3. Set the door locks securely, and check for gap with the door closed.
WARNING
"
button on the machine control panel,
2-2