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PJ2000M-C, PJ2500M-C & PJ3000M-C
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User Manual
Rev. 1.5 - 09/01/09
Figure 8-2: Connection for the selection of 115V or 208/230V three fase with neutral wire
8.2 PS Part
8.2.1 Surge Protection
This card’s main function is to avoid any damage to the internal cards by blocking
the contact before current reaches the equipment in case overvoltages occur.
8.2.2 Power Supply
The three power supply modules are located in the middle part of the amplifier.
The power supply units are mounted on a cooling fin to cool the amplifier by forced
ventilation.
The amplifier houses a transformer the input voltage of which may be selected
between 115 and 230 Volts.
The transformer is fitted with three secondary wires: A) 18-0-18 V, B) 0-17 V, C)
0-11.5 V that supply power to the cards inside the equipment.
8.2.3 PFC Unit or Rectifier
The PFC unit is a rectifier that modulates the current absorbed so that the wave
shape is the most possible sinusoidal, obtaining a factor of power of 99%.
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