Connection Of The Power Unit; Connection Of The Dc Bus X1D; Connection Of The 24V Bus X1C; Figure 15: Connection Of The Dc Bus - KEB COMBIVERT H6 Series Instructions For Use Manual

cONNEcTION Of THE POWER UNIT

4.2 connection of the power unit

4.2.1 connection of the Dc bus X1D

The tinned copper bars connect the DC bus of the different H6 devices. Precharging,
power supply and regeneration (if required) is provided by the power supply module.
The electrical connection is made with metal bridges, which must be mounted (as illus-
trated in the photo). A plastic cap must be installed at both ends of the H6 system as
protection against accidental contact.
DANGER
Bridges for the connection of the
DC bus between the devices
Torx-oval-head screw
M4x10
Figure 15: Connection of the DC bus
Attach the cover for the DC bus again after the installation.

4.2.2 connection of the 24v bus X1c

The 24V bus supplies the control and the driver circuit of the axis module and the power
supply and regenerative unit with 24V DC voltage. Generally this voltage is provided by
the COMBIVERT H6 power supply module, but also an existing voltage source can be
used.
Figure 16: Connection of the 24V bus
NOTICE
46
If the DC current is greater than 350 A, the current must be limited to this value
for each DC bus connection X1D and the total current must be divided between
the right and left connection.
Dangerous voltage
► The voltage on the DC bus during operation can be up to DC 840 V!
upper rail = DC+
lower rail = DC–
required tool
Torx screw driver TX20
The bridge for the connection of the 24V bus is attached to the devices
Cross-head screw M3x10
The assembly of the jumper must be carried out with special care. Tilting
or breaking the plug contacts is to be prevented.
Place plastic cap as protection against
accidental contact at the end of the
Tightening torque
3.0 Nm (bridge)
1.1...1.2 Nm (plastic cap)
and fixed with a screw.
Tightening torque 0.5 Nm
system