Specification T1689 Technical Manual Rev 07
DELTA Rectifier Module MV3000 Air Cooled DELTA
Page 34
2.9.1 DELTA Rectifier Type MVR
Figure 2–7. – DELTA Rectifier Module (MVR1600-4601)
2.9.1.1 Features
• The rectifier module includes a circuit, which is capable of pre-charging the transistor modules.
This circuit charges the d.c. link capacitors of the transistor modules via current limiting resistors
in the rectifier module;
• Modules fit in the standard DELTA mounting frames; and are configured for ‘dirty air’
applications.
• Metal oxide varistors are included to absorb surge energy from the mains. Supply impedance is
necessary for this to function correctly;
• Protection against d.c. link short circuits is by the use of recommended semi-conductor fuses;
• Modules carry thermostat and thermistor temperature sensing devices, which are monitored by
the MV3000e controller to provide over-temperature protection.
2.9.1.2 Interfaces
• Signals between the controller and rectifier module are by individual wires;
• The a.c. and d.c. power connections have stud connections and are designed for cable
connection, however maximum sizes for busbar connections to d.c. terminals are provided in this
manual.
Lifting point 20 mm (0.75”)
diameter
TB1 – Control connections
R – a.c. phase connection
S – a.c. phase connection
T – a.c. phase connection
RECT + : d.c. positive
connection
RECT - : d.c. negative
connection
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