Avid Technology MV3000 DELTA User Manual

Specification T1689 Technical Manual Rev 07
DELTA Transistor Module MV3000 Air Cooled DELTA
Page 56
2.10.5 Phase Voltage
The modules are designed for operation on a nominal a.c. supply voltage of:
MVD500-4501: 380 - 525 V
MVD300-3702, MVD300-4602, MVD500-4701: 575 - 690 V
The maximum output phase to phase r.m.s voltage is V d.c./√2 for sinusoidal waveforms.
2.10.6 D.C. Link Voltage
DELTA transistor module d.c. voltage ratings are given in Table 2–26. For instance, when a motor is braked
power is returned to the drive and the d.c. link voltage rises. To protect the DELTA transistor modules the drive
is programmed to trip if the d.c. link voltage rises to an excessive level. The overvoltage trip level is determined
by the type of SMPS units fitted. See Table 2–14.
Module
Maximum
Continuous Working
Voltage for d.c. link
Maximum Voltage
(Surge) *
Maximum Silicon
Voltage
(V
CES
)
Overvoltage Trip
Level for 600 V & 690
V Nominal Supply
Voltage
MVD300-3702
1200 V
1200 V
1700 V See note**
MVD300-4602
1160 V
1200 V
MVD500-4501
875 V
900 V
MVD500-4701
1170 V
1275 V
Table 2–26. – DC Link Voltage & Overvoltage Trip Level
NOTES: * : the maximum surge level is the lesser of the d.c. link capacitor rating and the short circuit test rating for
the IGBT (Insulated-gate Bipolar Transistor).
** : overvoltage trip level is determined by the type of SMPS unit fitted. See Section 3 – Drive (CDM) Design
2.10.7 D.C. Link Capacitors
Table 2–27 gives the capacitance values for single DELTA transistor modules.
Product Type
Voltage
rating of
each
capacitor
(V d.c.)
Value of
Capacitor
(
µ
F)
Number in
Series
Total
Quantity
Total Capacitance
(
µ
F)
Discharge Time (<
50 V d.c.)*
MVD300-3702
450
4700
3
(5 parallel
paths)
15 7,833
5 minutes
MVD300-4602 400
MVD500-4501
450
2
(8 parallel
paths)
16 18,800
MVD500-4701
3
(5 parallel
paths)
15 7,833
* The quoted d.c. link discharge times assume maximum d.c. link operating voltage.
Table 2–27. – DC Link Capacitors For A Single DELTA Transistor Module

Avid Technology MV3000 DELTA Specifications

General

Brand	Avid Technology
Model	MV3000 DELTA
Category	Control Unit
Language	English