3 main power, Main power – ElmoMC Gold Line Digital Servo Drives-Gold DC Trombone User Manual
Page 30
Gold DC Trombone Installation Guide
MAN-G-DCTROIG-EC (Ver. 1.900)
||Main Power
30
6.3 Main Power
The Gold DC Trombone receives power from main supply and delivers power to the motor.
See Chapter 8 in the in the MAN-G-Panel Mounted Drives Hardware manual for full details.
Pin
Function
Cable
PE
Protective Earth
DC Power
VN-
DC Negative Power input
DC Power
VP+
DC Positive Power input
DC Power
3-Pin Pluggable 7.62 mm Phoenix High Current
3-Pin Phoenix Plug-in Connector
Table 3: Connectors for Main Power
The DC power for the Gold DC Trombone is delivered from a separated rectifying unit (supplied by
the user). Elmo recommends using the Tambourine rectifier specifically designed for use with Elmo
drives which offers a range of versatile options.
The following sections contain topology recommendations for implementing three-phase and a
single-phase supply chains.
The power stage of the Gold DC Trombone is fully isolated from the other sections of the Gold DC
Trombone, 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 which significantly contributes to
proper functionality, safety and EMI immunity, leading to better performance of the Gold DC
Trombone.
In addition, this isolation simplifies the requirements of the DC power supply that is used to power
the DC bus of the Gold DC Trombone, by allowing it to operate with a non-isolated DC power source
(a direct-to-mains connection) which eliminates 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 Gold DC
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.