Delta ASD-A2-0121 Series User Manual page 782

Appendix B Maintenance and
Basic Inspection
Item
General inspection
Inspection before
operation
(has not applied to the
power yet)
Inspection before
Periodically check if the screws of the servo drive, the connection
between the motor shaft, and the mechanical system as well as the
connection of terminal block and mechanical system are securely
tightened.
The gap of the control box and the installation of the cooling fan should
be free from oil, water, or metallic particles. Also, the servo drive shall
be free from the cutting powder of the drill.
If the control box is installed in the site which contains harmful gas or is
full of dust, please be ensured the servo drive is free from the harmful
gas and dust.
When making encoder cable or wire rods, please be ensured the wiring
is correct. Otherwise, the motor may have sudden unintended
acceleration or be burned.
To avoid the electric shock, the ground terminal of the servo drive
should firmly connect to the ground terminal of the control box. If the
wiring is needed, wait at least 10 minutes after disconnecting the drive
from the main supply power, or discharge electricity by discharge
device.
The splicing parts of the wiring terminal should be isolated.
Make sure the wiring is correct so as to avoid the damage or any
abnormity.
Check if the electrically conductive objects including sheet metal (such
as screws) or inflammable objects are not inside the servo drive.
Check if the control switch is in OFF status.
Do not place the servo drive or external regenerative resistor on
inflammable objects.
To prevent the electromagnetic brake from losing efficacy, please
check if stop function and circuit break function can work normally.
If the peripheral devices are interfered by the electronic instruments,
please reduce electromagnetic interference with devices.
Please make sure the external voltage level of the servo drive is
correct.
The encoder cable should avoid excessive stress. When the motor is
running, please be ensured the cable is not frayed or over extended.
Inspection
Content
B-1