Allen-Bradley PowerFlex 7000 Series, Руководство пользователя

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Rockwell Automation Publication 7000-UM203C-EN-P - September 2018 27
System Components Chapter 4
Figure 10 - Safe Torque Off Option Location for 24STORK
Optical Interface Boards 2 The Optical Interface (OIB2) Boards are the interface between the DPM/
OIBBS and the Gate Driver circuitry. The drive control decides which device
to fire, and sends an electrical signal to the OIB2 boards via the OIBBS boards.
The OIB2 board converts that electrical signal to an optical signal, which is
transmitted via fiber optics to the gate driver cards. Typically, the Transmit
ports are Grey and the Receive ports are Blue. The gate driver accepts that
signal and turns the device on and off accordingly. The diagnostic fiber optic
signals work the same way, but the source is the gate driver boards and the
destination is the drive control boards. Each OIB2 contains one extra fiber
optic receiver (RX7), which is used for temperature measurement.
The OIB2 boards differ from the OIB boards in that the transmitter power can
be turned off while the receiver power stays on. This allows for diagnostic
feedback of the power devices while the drive is in a safe state.
STO System Components
Optical Interface
Boards 2 (OIB2)
(PN-271938)
Optical Interface Base
Board Safety (OIBBS)
(PN-504125)