Connecting motor power, Connecting the dc power – ElmoMC SimplIQ Digital Servo Drives-Solo Trombone Installation Guide User Manual
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Solo Trombone Installation Guide
Installation
MAN-SOLTROIG (Ver. 1.203)
21
3.3.3.
Connecting Motor Power
Connect the M1, M2, M3 and PE pins on the Solo Trombone. The phase connection is arbitrary,
as the Composer will establish the proper commutation automatically during setup. However, if
you plan to copy the setup to other drives, then the phase order on all copy drives must be the
same.
Figure 2: AC Motor Power Connection Diagram
3.3.3.1.
Connecting the DC Power
The DC power for the Solo Trombone is delivered from a separated rectifying unit (supplied by
the user). The following sections contain topology recommendations for implementing three-
phase and a single-phase supply chains. Elmo offers the end-user the option to purchase its
Tambourine rectifier, which offers a range of versatile options.
The power stage of the Solo Trombone is fully isolated from the other Solo Trombone sections,
such as the control-stage and the heat sink. This isolation allows the user to connect the
common of the control section to the PE, a connection that significantly contributes to proper
functionality, safety and EMI immunity, leading to better performance of the Solo Trombone.
In addition, this isolation simplifies the requirements of the DC power supply used to power the
DC bus of the Solo Trombone, by allowing it to operate with a non-isolated DC power source (a
direct-to-mains connection) therefore eliminating the need for a bulky and expensive isolation
transformer.
However, as well as operating from a non-isolated/direct-to-mains DC power supply, the Solo
Trombone can also operate from an isolated power supply or batteries.
When rectifying an AC voltage source, the AC voltage level must be limited to 270 VAC so as
not to exceed the maximum 390 VDC in the case of a 400 VDC drive, or 528 VAC so as not to
exceed the maximum 747 VDC in the case of an 800 VDC drive.
If the Solo Trombone is connected to Elmo’s Tambourine power supply, the end-user can
exploit the Tambourine’s options, such as EMI-filtering and shunt-regulator.