Filter
Top Products
3.5 DC Power Supply
The DC power supply can be at any voltage in the range defined in the technical
specifications (the Appendix of this guide). The supply source must comply with the safety
aspects of the relevant requirements, in accordance with the most recent version of the
standard EN60950 or equivalent Low Voltage Directive Standard, all according to the
applicable over-voltage category. If the power source to the power supply is the AC line
(through an isolated or a non-isolated transformer), safety margins must be considered, in
order to avoid activating the under/over voltage protection due to line variations and/or
voltage drop under load.
In addition to the above, the transformer must comply with the safety aspects of the relevant
requirements in accordance with the most recent version of the standard EN60742 (Isolating
and Safety Isolating Transformers). The nominal DC bus voltage should be in the following
range:
1.2 V
dcmin
< V
dc
< 0.9 V
dcmax
Where:
V
dcmin
is the minimum DC bus
V
dcmax
is the maximum DC bus
The transformer power should be calculated such that it will be able to deliver power to the
amplifier (including peak power) without significant voltage drops.
The power supply should be located as close as possible to the amplifier. While driving high-
inertia loads, the power supply must be equipped with a shunt regulator; otherwise, the
amplifier will be disabled whenever the capacitors are charged above the maximum voltage,
during motor break down.
3.5.1 Powering Up
After the Drum has been mounted, check that the cables are intact. The Drum servo drive is
then ready to be powered up.
Caution:
Before applying power, ensure that the DC supply is within the range
specified for your specific type of Drum and that the proper
plus-minus connections are in order.
3.5.2 Initializing the System
After the Drum has been connected and mounted, the system must be set up and initialized.
This is accomplished using the Composer, Elmo’s Windows-based software application. Install
the application and then perform setup and initialization according to the directions in the
Composer Software Manual.
Drum Installation Guide Installation
MAN-DRUIG (Ver. 1.0)
3-45