2 For your own safety
To prevent accidents, injuries and damage to property:
Perform a risk assessment and follow all of the statutory and local safety instructions and
accident prevention regulations when installing or maintaining the system.
Ensure that the AC or DC power supplies are switched off and locked prior to performing
any work in the area of the machine. The deactivation of the output stages or servo drive
enable signals is not a suitable means of locking. In the case of a malfunction, the drive
may accidentally be put into action. This does not apply to drives with the special "Safe
Torque Off" feature in accordance with EN 61800-5-2.
Electronic devices are never completely fail-safe. It is the user’s responsibility to ensure
that the system is brought to a safe state if the electrical device fails.
Disconnect the electric equipment from the power supply via the main switch and secure
it against reconnection. Wait until the DC bus has discharged in the following cases:
l
maintenance and repairs
l
cleaning
l
long downtimes
The standard motor holding brake that is included in the scope of supply or any other
external motor holding brake that is actuated by the servo drive is not suitable for the
protection of the operators if used alone!
Be particularly careful during the installation process. During the installation and also later
on during the operation of the drive, ensure that no drilling chips, metal dust or installation
parts (screws, nuts, cable sections) can fall into the servo drive.
Use suitable personal protective equipment during the installation.
Vertical axes must be additionally secured against falling down or lowering after the motor
has been switched off, for example by way of the following:
• mechanical locking of the vertical axis,
• external braking, catching or clamping devices, or
• sufficient weight counterbalance of the axis.
Perform the start-up process with idling motors. This is to avoid mechanical damage, e.g.
due to an incorrect direction of rotation.
Product manual BL 4000-C
Page 20 of 298