Fagor DDS APS-24, Hardware Manual

Page: 276 / 406

   Installation
8.
310
· 276 ·
Ref.1912
DDS
HARDWARE
The tightening torque must be between 2.3

2.8 N·m.
Internal bus connection
To make this connection, join the X1 connectors of each module with the
ribbon (flat) cables supplied with each of them as shown in the next figure:
Ballast resistor connection in power supplies and compact
drives
The Ballast resistors are designed to be connected to the corresponding
terminals of the
PS/XPS power supplies and to the ACD/SCD compact
drives. They are installed to dissipate the excess energy generated when
braking the servomotors.
How to configure this connection on power supplies
Internal or external resistor?
See chapter 5, the section regarding the “ BALLAST RESISTOR
SELECTION GUIDE ” to know whether it is necessary or not to install an
external Ballast resistor or the internal one is enough.
Resistor model
See chapter 4, section regarding “resistor modules” to know which external
Ballast resistor corresponds when an external resistor is required.
MANDATORY. Take a (PE) ground cable (as short as possible) from each
module to each main machine ground point. See figure F. H8/10 .
MANDATORY. In order to ensure compliance with the European Directive
on Electromagnetic Compatibility 2014/30/EU, it is a must to:
Verify that all the requirements of local and national electrical codes are
met as well as all the regulations applicable regarding the grounding of the
whole unit.
Power the system through ·MAIN FILTER·.
Secure the filter onto a metallic support with a good contact on its whole
base, good ground connection and as close to the power supply as possible.
Make all the ground connections indicated in the figure
F. H8/10 with a
cable having a section equal to or greater than the three-phase power
supply and at least 6 mm².
Always use shielded cables for three-phase motor connections. See
chapter
7. CABLES .
F. H8/11
Internal bus connection.
INFORMATION. Note that, the resistor ER+TH-18/1100 may also be
installed in the bus protection module, BPM . Refer, further ahead, to the
sub-section “ Ballast resistor connection to the protection module,
BPM ” to know all the installation details.
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