Safe Operation - BONFIGLIOLI ACTIVE CUBE Applications Manual

•
2.11.2

Safe operation

• During operation of the frequency inverter, always comply with the applicable national and inter-
national regulations/laws on work on electrical equipment/plants.
• Before commissioning and the start of the operation, make sure to fix all covers and check the
terminals. Check the additional monitoring and protective devices according to the applicable na-
tional and international safety directives.
During operation, never open the machine/plant
•
Do not connect/disconnect any components/equipment during operation.
•
• The machine/plant holds high voltage levels during operation, is equipped with rotating parts
(fan) and has hot surfaces. Any unauthorized removal of covers, improper use, wrong installation
or operation may result in serious injuries or material damage.
• Some components, e.g. the heat sink or brake resistor, may be hot even some time after the ma-
chine/plant was shut down. Don't touch any surfaces directly after shutdown. Wear safety gloves
where necessary.
• The frequency inverter may hold dangerous voltage levels until the capacitor in the DC link is
discharged. Wait for at least 3 minutes after shutdown before starting electrical or mechanical
work on the frequency inverter. Even after this waiting time, make sure that the equipment is
deenergized in accordance with the safety rules before starting the work.
• In order to avoid accidents or damage, only qualified staff and electricians may carry out the work
such as installation, commissioning or setup.
• In the case of a defect of terminals and/or cables, immediately disconnect the frequency inverter
from mains supply.
Persons not familiar with the operation of frequency inverters must not have access to the fre-
•
quency inverter. Do not bypass or decommission any protective facilities.
The frequency inverter may be connected to power supply every 60 s. This must be considered
•
when operating a mains contactor in jog operation mode. For commissioning or after an emer-
gency stop, a non-recurrent, direct restart is permissible.
After a failure and restoration of the power supply, the motor may start unexpectedly if the Auto-
•
Start function is activated.
If staff are endangered, a restart of the motor must be prevented by means of external circuitry.
Before commissioning and the start of the operation, make sure to fix all covers and check the
•
terminals. Check the additional monitoring and protective devices according to EN 60204 and ap-
plicable the safety directives (e.g. Working Machines Act or Accident Prevention Directives).
18
ACU
Spindle Applications 11/13