Chapter 3 – Voltage Selection and Mechanical Installation3-2 Installation and Start-up Guide for NBRA-6xxSynchronisation ofMultiple ChoppersThe FIBER position is used if two (or more) choppers are connected tothe same intermediate circuit and must be synchronised. One chopper– the first in the chain – acts as the master for the other choppers. Thevoltage selection jumper of the master is set to the appropriate voltage,while the slaves are set to FIBER.Figure 3-2 Master/Slave connection of multiple choppers.WARNING! Do not touch the printed circuits. They are extremelysensitive to electrostatic discharge.MasterFIBERSlave Slave FIBERV22V22 V23V23(VOLTAGE)
