Avid Technology MV3000 DELTA - Page 37

T1689 Technical Manual Rev 07 Specification
MV3000 Air Cooled DELTA DELTA Rectifier Module
Page 37
2.9.1.7 A.C. Voltage Frequency
Supply frequency : 45 Hz to 63 Hz.
2.9.1.8 D.C. Link Voltage
The Output d.c. Link Voltage is detailed in Table 2–16.
Typical d.c. output: 1.35 x supply voltage (r.m.s).
2.9.1.9 Pre-Charge
Pre-charge requirements are listed in Table 2–17. The pre-charge control signal switches in the main rectifiers
when the d.c. link has finished pre-charging. The drive controller determines when the charging period is
complete. The MVRL2100-4601/2 DELTA rectifier module is capable of pre-charging:
• Up to four MVD300 or MVD500 DELTA transistor modules;
The rectifier pre-charge acknowledge signal must be connected to the MV3000e controller at PL12, to allow
drive operation. See Table 2–11.
Module
Internal
Pre-charge
Resistor (Ohm)
Control Signal
Voltage
(V d.c.)
Control Signal
Load
(mA)
MVRL2100-4601/2
72
24 V
10 mA
Table 2–17. – Pre-Charge Requirements
Fusing
Pre-charge fuses are listed in Table 2–18.
GE Part Order Number
Description
S82028/310
8A 600V a.c. Cartridge Fuse (10x38mm)
Table 2–18. – Pre-Charge Fusing
2.9.1.10 Thermal Protection
Thermal protection is provided on each rectifier module by a thermistor and a thermostat located on each
heatplate. Connection details are given in Table 2–11. The thermostat contact is a normally closed contact and
opens at at 90°C ±3°C (194°F ±5°F).