Toshiba GX9, Installation & Operation Manual

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68 GX9 ASD Installation and Operation Manual
Command and Frequency Control Selections
Using F003 and F004 , the user may select a Command source and a source for Frequency control. The
default settings for Command and Frequency control are Terminal Board and RR , respectively.
To be placed into the Override mode, there need only be a valid signal received from one of the signal
sources. If the valid signal is received via a signal source with a higher priority, it will supersede the
command or frequency command received from another source.
The signal sources are continuously scanned to determine if any of the listed items are actively
providing an input signal.
If no activity is detected on any of the listed signal sources, the settings of F003 and F004 will be used
for Command and Frequency control, respectively.
Any or all of the Command and Frequency control input sources may be placed in the Override
mode.
Placing the GX9 ASD in the Local mode (Local/Remote LED on) via the EOI places the RS232/RS485
or the TTL control selections in the Override mode for Command and Frequency input. This
selection is further defined by the setting of Program

Communications

Communications Settings

EOI Port Address .
The Local/Remote control Override feature for Command and Frequency (or either) may be enabled/
disabled at Program

Utilities

Prohibition

Local/Remote Key Command or Frequency
Override .
Communications may be used to place the remaining Command and eligible Frequency control input
sources in the Override mode. Once placed in the Override mode the setting is valid until it is
cancelled, the power supply is turned off, or the ASD is reset.
Command and Frequency-Control Override Hierarchy
Table 6 lists the input conditions and the resulting output control source selections for Command and
Frequency control Override operation.
The GX9 ASD reads the command registers of the listed control items of the table from the left to the
right. In the table the number 1 indicates that a valid input signal is being received for that control input
source; X = Don’t care; and 0 = No valid signal present.
The first item to be read that has a valid input signal will be used for Command or Frequency control.
Table 6
.
Command and Frequency Control Hierarchy
Priority Level 1 2 3 4 5
Command/
Frequency Mode
Communication
Card
RS232/
RS485
TTL
Terminal Board
(Binary/BCD Input)
F003/F004
Communication Card 1 X X X X
RS232/RS485 0 1 X X X
Common Serial (TTL) 0 0 1 X X
Terminal Board 0 0 0 1 X
F003/F004 Setting 0 0 0 0 F003 / F004 Setting