Fagor DDS Series, Hardware Manual

Page: 123 / 406

   Drives
3.
Ref.1912
· 123 ·
DDS
HARDWARE
Function
Power connector
The power connectors located on top of each drive are used to connect the
motor.
The ground connection of the cable shields in made from the vertical plate
next to the connectors.
The power bus input is located at the bottom of the modules and under the
screwed-on lid. The drive needs 456-800 V DC which can vary depending
on the mains voltage and the load. The power supply module is in charge
supplying this voltage.
Two plates are supplied with each module for this connection and another
one for connecting the chassis with each other.
The following table shows the values for gap, tightening torque, pole
sections (wire entry holes) and other data regarding these screw-on
connectors according to drive model:
T. H3/6 Terminals of the power connector. Technical data.
AXD|SPD|MMC 1.08
1.15
1.25 1.35 2.50
2.75
2.85
3.100
3.150
3.200
3.250
Connector data
Gap (mm)
7.62 7.62 10.16 10.16 - -
Min./max. tightening
torque (N·m)
0.5/0.6 0.7/0.8 1.2/1.5 1.7/1.8 6/8 15/20
Screw thread
M3 M3 M4 M4 M6 M8
Min./max. section (mm²)
0.2/4 0.2/6 0.75/6 0.75/16 16/50 35/95
Rated current In (A)
20 41 41 76 150 232
Connection data
Length to strip (mm) 7 10 12 12 24 27
WARNING. When connecting the drive with its corresponding motor
connect terminal U of the drive with the terminal corresponding to the U
phase of the motor. Proceed the same way to connect the terminals V-V,
W-W and PE-PE. If they are not connected like this, it could perform poorly.
The cable must have a metallic shield that must be connected to the
ground terminal of the drive and to that of the motor in order to comply with
EC directives.
WARNING. Observe that before handling these terminals, you must
proceed as indicated and in the following order:
 Disconnect the mains voltage at the electrical cabinet.

Wait a few minutes before handling these terminals.
The power supply needs time to decrease the voltage of the power bus
down to safe values (< 60 V DC). The green indicator DC BUS ON being
turned OFF does not mean that the power bus may be handled or
manipulated. The discharge time depends on the number of elements
connected and it is about 4 minutes.
WARNING. Please note that the STO ( S afe T orque O ff) SAFETY
FUNCTION does not imply an electrical power off. There is still voltage at
the DC BUS. Ignoring this warning may cause electric shock.