Safety Function Sto - KEB COMBIVERT G6 Safety Manual

2.

Safety Function STO

With electronic protection devices the safety function is integrated in the drive control in order
to minimize or eliminate danger by malfunctions in machines. The integrated safety function
replace the complex installation of external safety components. The safety function can be
requested or released by an error.
Installation work or troubleshooting can be necessary in hazard areas, whereby protective
devices such as line- or motor contactors shall not be activated. The safety function STO can
be used there. Depending on the application the use of line or motor contactors can be void
by using STO.
In case of error or request, the power semiconductor of the drive module are switched off and
the drive is not supplied, which causes a rotation or torque (in case of a linear drive move-
ment or force). The unit can be safe switched off and/or remain if an error occurs.
COMBIVERT G6 contain dangerous voltages which can cause
death or serious injury.
The COMBIVERT G6 can be adjusted by way that in regenera-
tive operation energy is regenerated into the DC link also during
Electric mains power failure. Therefore a dangerous high tension can
Shock exist in the unit after switching off the supply system.
Before working with the unit check the isolation from sup-
ply by measurements in the unit.
Care should be taken to ensure correct and safe operation to
minimise risk to personnel and equipment.
Uncontrolled start is possible by improper installation of the safe-
ty technology. This may cause death, serious bodily injuries or
Only
substantial damage to property.
Qualified
Therefore the safety function may only be installed and put into
Staff
operation by qualified personnel which are trained in safety tech-
nology.
The COMBIVERT G6 must not be started until it is determined
that the installation complies with 2006/42/EC (machine direc-
tive) as well as the EMC directive (2004/108/EC)(note EN60204).
The COMBIVERT G6 meets the requirements of the Low-Volt-
Observe
age Directive 2006/95/EC. The harmonized standard of the se-
Standards
ries EN 61800-5-1 (VDE 0160) is used.
This is a product of limited availability in accordance with IEC
61800-3. This product may cause radio interference in residen-
tial areas. In this case the operator may need to take correspond-
ing measures.
In order to ensure permanent security, the function must be
Regular
checked in regular intervals according to the results of the risk
checks
analysis.
Safety Function STO
GB - 9