1. PDS secondo le IEC n

2. IEC 61800-1 System 2.1.1 Power drive system (PDS) (see figure 1)
System consisting of power equipment (composed
of converter section, d.c. motor and other
equipment such as, but not limited to, the
feeding section or the field supply), and control
equipment (composed of switching control
- on/off for example - speed control, current
control, firing system, field control,
protection, status monitoring, communication,
tests, diagnostics, process interface/port, etc.)

4. IEC 61800-2 2.1.1 A.C. power drive system (PDS)
(see figure 1) System consisting of power
equipment (composed of converter section,
a.c. motor and other equipment such as, but
not limited to the feeding section), and control
equipment (composed of switching control
– on/off for example –, voltage, frequency, or
current control, firing system, protection, status
monitoring, communication, tests, diagnostics,
process interface/port, etc.).

6. IEC
3.1 Overview
For the purposes of this document, definitions related to EMC and to relevant phenomena to
be found in IEC 60050(161), in CISPR, and also, the following additional definitions apply.
A power drive system (PDS) consists of a motor and a complete drive module (CDM). ...

7. ... IEC
It does not include the equipment driven by the motor. The CDM consists of a basic drive module
(BDM) and its possible extensions such as the feeding section or some auxiliaries (e.g.
ventilation). The BDM contains converter, control and self-protection functions. Figure 1
shows the boundary between the PDS and the rest of the installation and/or manufacturing
process. IEC , IEC and IEC give details for these definitions.

11. IEC 61800-4 3.1.1 A.C. power drive system (PDS) with voltage above
1 kV (see figure 1)
System consisting of:
power equipment (possible harmonic filters,
input transformer, converter section,
possible output transformer, a.c. motor);
control, protection and auxiliaries.

13. IEC 61800-5-1 3.20 power drive system PDS
system for the speed control of an electric motor, including the CDM and motor but not the driven equipment (see Figure 1)

15. IEC
.11
PDS(SR)
adjustable speed electrical power drive system suitable for use in safety-related applications

17. IEC TR 61800-6 2.1 Terms and definitions
For the purpose of this technical report the definitions given in IEC , IEC
and IEC as well as the following, apply.

18. IEC TR 61800-8 3.1 Overview of the system
A power drive system (PDS) consists of a motor and a complete drive module (CDM). It does
not include the equipment driven by the motor. The CDM consists of a basic drive module
(BDM) and its possible extensions such as the feeding section or some auxiliaries (e.g.
ventilation)

19. IEC TS
The BDM contains converter, control and self-protection functions. Figure 1
shows the boundary between the PDS and the rest of the installation and/or manufacturing
process. If the PDS has its own dedicated transformer, this transformer is included as a part
of the CDM.