Schneider Electric ALTIVAR 58 TRX - Manual (Page 92)

Altivar ® 58 TRX AC Drives
Power Section Construction Information
© 2000–2003 Schneider Electric All Rights Reserved
92
09/2003
POWER SECTION CONSTRUCTION INFORMATION
Block Diagram for ATV58HU09M2 to ATV58HD12M2 (0.5 to 10 hp, 208/230 Vac) and
ATV58HU18N4 to ATV58HD23N4 (1 to 20 hp, 400/460 Vac)
The block diagram above provides an overview of the construction of the ATV58 TRX drive controller
power section. The drive controllers in the horsepower ranges referenced above are built in five frame
sizes. (See the dimensional drawings on pages 120 to 122.) The various frame sizes share in common
many components and technological advances:
• In frame size 1, the diode bridge section and the insulated gate bipolar transistor (IGBT) output
section are integrated into one module. The dynamic braking module is purchased and mounted
separately. All other frame sizes have the dynamic brake switching module internal to the product.
• In frame sizes 2 and 3, the diode bridge section, the IGBT output section, and the dynamic braking
components are integrated into one module.
• In frame sizes 4 and 5, the diode bridge section is one module. The IGBT output section is integrated
into a power module (PM). The dynamic braking transistor is incorporated into the diode bridge
section or the power module, depending on the rating.
• The EMC filter is optional on frame sizes 3, 4, and 5.
Integration reduces the part count and the wiring and connection points required to connect
components. The output section has fault detection and short circuit protection of the output transistors
integrated into the module. The use of these modules eliminates individual gate drive cards and
associated wiring as used by most other manufacturers in this horsepower range. These features
combine to make the Altivar 58 TRX drive fit in a smaller package while improving the reliability of the
product.
+
L1
L2
L3
−
U
V
W
Optional
EMC
Filter
PA
PB
DBT
T1
T4
T3
T6
T5
T2
Diode
Bridge
Section
Pre-charge
Relay
Capacitor
Bank Dynamic
Braking
Transistor
Current
Measurement
IGBT
Output
Section
Bl
k D
ia
g
1 .e
p
s