Allen-Bradley PowerFlex 7000 Series, Руководство пользователя

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28 Rockwell Automation Publication 7000-UM203C-EN-P - September 2018
Chapter 4 System Components
Figure 11 - Optical Interface Board
The OIB2 boards are mounted directly on the Optical Interface Base Board
Safety (OIBBS) using two parallel 14-pin connectors for the electrical
connection, and metal standoffs to provide the mechanical support. There is
one OIBBS for the inverter, and one OIBBS for the rectifier devices. The
OIBBSs are interfaced to the DPM using two ribbon cables to connect to J11
and J12. The OIBBS has four Phoenix connectors which connect the board to
the safety system.
Each OIB2 board can handle the Firing and Diagnostic duplex fiber optic
connector for six devices. Physically, on the OIBBS, there is provision for
18 devices for the inverter and the rectifier. This is enough capacity to handle
the highest rated drive that we currently produce. The top OIB2 board on the
OIBBS is for the ‘A’ devices, the middle OIB2 board on the OIBBS is for the
‘B’ devices, and the bottom OIB2 board on the OIBBS is for the ‘C’ devices.
Test points for the OIB2 gating diagnostics and temperature feedback signal
are on the OIBBS.
Each OIB2 also has input RX7 for a signal from a Temperature Feedback
Board. The quantity and location of thermistor connections is dependent on
the drive configuration. Typically there is one temperature sensor from the
Line Converter and one temperature sensor from the Machine Converter, each
going into the respective OIB2 in the ‘A’ position. However some drive
configurations only require one thermistor feedback connection. The
temperature feedback connection on OIB2C is not implemented on the
OIBBS and is never used. For more information, see the drawings supplied
with your drive. The alarm and trip set points for each of these signals is
programmable in software.