Fagor DDS Series, Hardware Manual

Page: 273 / 406

   Installation
8.
Ref.1912
· 273 ·
DDS
HARDWARE
8.4 Connection between modules
Power bus connection
The power bus is connected through the terminals hidden under the cover at
the bottom of each module. To do this, use 2 of the 3 plates and the washers
and nuts supplied with each module.
The tightening torque must be between 2.3

2.8 N·m.
The power supply module must provide the power needed by all the devices
connected to it. If this power exceeds the maximum value that the power
supply can provide, two power supplies will be required.
Assign to each of them the supply of a separate group of drives.
MANDATORY. All the modules, including the B us P rotection M odule, BPM,
must be tightly joined to each other guaranteeing a good electrical contact.
F. H8/7
Power bus connection.
F. H8/8
If two power supplies are needed, they must be installed in separate groups.
Note. *The B us P rotection M odule BPM may be mounted anywhere in
the DC BUS and whenever there is a synchronous spindle and/or an
RPS power supply.
(when applicable)*
BPM
MODULE
MODULAR
DRIVE
RPS
POWER SUPPLY
HIGHEST POWER
MODULAR DRIVE
(A) System (B) System
X
axis
d
ri
v
e
Y
axis
d
ri
v
e
Z
ax
is
d
rive
Po
wer
Su
pp
ly
(A
)
W a
xis
d
ri
v
e
Sp
indl
e d
ri
v
e
Po
wer
Su
pp
ly
(B
)
WARNING. The power buses of different power supply modules must never
be connected in parallel. Always make separate groups, connecting each
power supply to a different group of drives.