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Specification
T1689 Technical Manual Rev 07
DELTA Transistor Module
MV3000 Air Cooled DELTA
Page 54
2.10
DELTA TRANSISTOR MODULE
Units covered: MVD300-3702
MVD300-4602
MVD500-4501
MVD500-4701
In a DELTA drive, transistor modules shown in Figure 2–20
are used in both machine bridges and AEM network
bridges, to convert between variable frequency a.c. and d.c. voltages.
Transistor modules are available in two current ratings. Larger power ratings can be achieved by connecting
modules of the same rating in parallel (derating will be necessary).
When operated in parallel, sharing reactance will be required.
Each module has three-a.c. phase, one d.c. negative, and one d.c. positive terminal.
Figure 2–20. – DELTA Transistor Module type MVD500-4701
The values given in this section are the absolute maximum ratings for the DELTA transistor modules. As other
components (i.e. controller) are required to form a complete drive circuit, then the ratings arising from the
combined components should be used when sizing a drive.
TB1 – SMPS d.c. connector
Lifting point 20 mm (0.75”)
diameter
Stop screw (behind busbar)
DC Connections behind
plastic shroud
A phase (behind shroud)
B phase (behind shroud)
C phase (behind plastic
shroud)
SMPS mounting location
PL1 – 40 way ribbon cable
connector
40 way ribbon cable - SMPS
control connection
Earth terminal (behind plastic
shroud)
Содержание MV3000 DELTA
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