36
Q9 Plus ASD Installation and Operation Manual
Command Mode and Frequency Mode
Control
Command
control includes instructions such as
Stop
,
Run
,
Jog
, etc. The source of the
Command
signal must be established for normal operation.
Frequency
commands control the output speed of the
Q9 Plus ASD
. The source of the frequency
(speed) control signal must be established for normal operation.
The source of the command control and speed control may be either internal or external. Once the signal
source is selected for either function, the system may be configured to use the selected signal all of the
time or switch under user-defined conditions.
Command
and
Frequency
control may be carried out using any one of several control methods (signal
sources) or combinations thereof. In the event that multiple control commands are received, the signal
sources are assigned priority levels. The primary control method for
Command
and
Frequency
control
uses the settings of
F003
and
F004
, respectively.
Command Control
(
F003
)
The
Command Mode
selection of
F003
establishes the primary source of the command input for the
ASD. However, the
Override
feature may supersede the
F003
setting as indicated in
Table 3 on pg. 38
.
Table 3
shows the hierarchy of the control sources managed by the
Override
function. The level of the
control item on the hierarchy is listed from left to right, most to least, respectively. As indicated in the
table, the
Override
setting may supersede the
F003
setting.
Placing the EOI in the
Hand
mode selects the
RS485
(2-Wire) as the
Command Mode
control source.
Hand
mode operation may be superseded by other
Override
settings.
Example:
With the EOI set to
Hand
,
Communication Card
input or
RS485
(4-Wire) input will
supersede EOI control input.
The remaining control sources may be placed into the
Override Mode
using communications.
The source of the
Command
control signal may be selected by:
• The
F003
setting,
• Placing an item from the list below in the
Override Mode
via communications, or
• Placing the EOI in the
Hand
mode (places only the RS485 [2-Wire] in the Override Mode).
Possible
Command
signal source selections include the following:
• Terminal Block (default setting),
• Panel Keypad Option,
• RS485 (2-Wire),
• RS485 (4-Wire),
• Communication Option Board, or
•
F003
setting (used if no signal sources are in the override mode).
Note:
The
Terminal Board
is placed in the
Override Mode
for
Command
functions by
assigning a discrete terminal to
Command Terminal Board Priority
and connecting
the terminal to
CC
. Once activated (run command required), the
Terminal Board
settings will be used for
Override Command
control (F, R, Preset Speeds, etc.).
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