Yaskawa VCD 723 - Manual (Page 18)

1 Introduction
12 System Considerations
9/15/93
System
Considerations
When operating in a system application, the VCD 723 can be used with other
MagneTek devices with which it will communicate by means of the MicroTrac
Local Area Network (LAN). Refer to Figure 1 for a typical MicroTrac System.
Each of the following remote devices (board or assembly) is described in detail
in a separate User Reference Sheet.
●
Remote Display Controller LAN Node PCB (RDC) – This board provides
a means for the MicroTrac system to have system operating parameters
displayed at locations remote from the MicroTrac drive. The RDC
communicates with the drive through the LAN. A single RDC can support
up to 31 Remote Display Units (RDUs). By means of a Portable
Display/Control Unit (PCDU), the RDC allows the selected display for each
RDU to be changed at anytime.
●
Remote Display Unit (RDU) – Designed for mounting in a panel cutout, the
RDU provides a two-line LED display (16 character alphanumeric, and 5-1/2
digit numeric). Consisting of a terminal, the information on its display is
transmitted by a Remote Display Controller LAN Node PCB.
●
Remote Keyboard Assembly – Designed for mounting on a panel with or
near a Remote Display Unit, the Remote Keyboard allows initiation of RDU
display changes without the need for a Portable Display/Control Unit.
●
Remote I/O [Input/Output] Controller LAN Node PCB (RIO) – This
board provides a means for the MicroTrac system to have inputs or outputs at
locations remote from the drive. The RIO communicates with the drive
through the LAN. A single RIO can support up to 6 Remote I/O boards,
using any combination of the following:
1. Remote Logic I/O PCB (LOGI/O) – This board provides remote logic
signal input/output capability for the MicroTrac system. It is connected
to a Remote I/O Controller LAN Node PCB for communication with the
drive.
2. Remote Analog I/O PCB (ANI/O) – This board provides remote analog
signal input/output capability for the MicroTrac system. It is connected
to a Remote I/O Controller LAN Node PCB for communication with the
drive.
3. Remote Thumbwheel Switch I/O PCB (TWIO) – This board provides
remote thumbwheel switch input/output capability for the MicroTrac
system. It can support up to 9 Thumbwheel Switch Assemblies. This
board is connected to a Remote I/O Controller LAN Node PCB for
communication with the drive.