S.B.C. Elettronica S.p.A. - Engineering Division
HPDxxN – High Power User’s Manual
7
1.3 Direct mains connection
The HPD N series of drives is specifically designed for direct connection to a three-phase mains
power supply from 90 to 480V~ 50/60 Hz, without interposing transformers. It is the responsibility
of the User to connect the system via protection fuses.
The HPD N require an auxiliary voltage (220V~, single phase) for the internal control circuits.
All protections required for safety, such as overvoltage detection, short circuit fault protection and
inverter and motor overtemperature detection are integral with the drive.
To simplify the design of electrical cubicle, the HPD N has inside a filter (mains and motor) to
meet the EMC standards. In order to qualify your machine for CE marking, adhere scrupulously to
specification on next chapters.
The presence of internal filter MAY generate undesired interventions of differential-switches: in
these cases change the set-point of differential-switch or even eliminate it!
Chapter 2 provides a detailed view of problems related to EMC.
N.B. leave at least 60 sec. after switching the drive off before
switching it on again.
1.4 Identification
HPD N High Power Drives are available in four models:
HPD25N
,
HPD35N,
HPD45N
and
HPD67N
. The number that follows HPD is the value of drive rated current in amperes.
HPD N drives carry an identification plate on the right hand side
showing all essential information for correct identification of the
unit.
Make a note of the information on this plate before
consulting S.B.C. on technical matters.
model identification plate
