ABB NBRA-6 Series, Руководство по установке и запуску

Страница: 20 / 54

Chapter 3 – Voltage Selection and Mechanical Installation
3-2 Installation and Start-up Guide for NBRA-6xx
Synchronisation of
Multiple Choppers
The FIBER position is used if two (or more) choppers are connected to
the same intermediate circuit and must be synchronised. One chopper
– the first in the chain – acts as the master for the other choppers. The
voltage 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 extremely
sensitive to electrostatic discharge.
Master
F
IBER
Slave
Slave
F
IBER
V22 V22 V23 V23
(V
OL
T
A
GE
)