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66
Unidrive SPM User Guide
www.controltechniques.com Issue Number: 3
For the dual rectifier, the power connections are repeated. See Figure 2-
4 on page 9 for terminal identification.
A docking kit is available for electronically connecting the SPMD
(inverter) to the SPMC/U (rectifier). See section 5.6.1
Installing the
docking kit
on page 39 for further details.
6.1.2 Ground connections
On a Unidrive SPMA, SPMD, SPMC/U the supply and motor ground
connections are made using an M10 bolt at the top (supply) and bottom
(motor) of the drive. See Figure 6-3 on page 66.
The supply ground and motor ground connections to the drive are
connected internally by a copper conductor with a cross-sectional area
given below:
SPMA: 75mm
2
SPMD: 120mm
2
SPMC/U: 128mm
2
Figure 6-3 Unidrive SPMA ground connections
Figure 6-4 Unidrive SPMD ground connections
Figure 6-5 Unidrive SPMC/U ground connections
NOTE
NOTE
Supply
ground
Motor
ground
Supply
ground
Motor
ground
Motor
ground
Supply
ground