170
G7 ASD Operation Manual
Frequency Point Selection
Program
⇒
Communication Setting Parameters
⇒
Communication
Reference Adjust
This parameter selects the communications reference for scaling.
See
F811
—
F814
for further information on this setting.
Note:
Scaling the communications signal is not required for all
applications.
Changes made to this parameter require that the power be cycled (Off then On)
for the changes to take effect.
Settings:
Disabled
Common Serial (TTL)
RS232/RS485
Communication Card
Direct Access Number — F810
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — Yes
Communications Reference Setpoint #1 (%)
Program
⇒
Communication Setting Parameters
⇒
Communication
Reference Adjust
When enabled at
F810
, this parameter is used to allow the user to set the gain
and bias of the speed control input to the drive when the speed control signal is
received via the source selected at
F810
.
Gain and Bias Settings
When operating in the Speed Control mode and using one of the control
sources from Settings above, the settings that determine the gain and bias
properties of the input signal are:
•
Communications Reference Speed Setpoint #1
(frequency)
(
F812
),
•
the communications input signal value that represents
Communications Reference Speed Setpoint #1
(frequency)
:
F811
,
•
Communications Reference Speed Setpoint #2
(frequency)
(
F814
), and
•
the communications input signal value that represents
Communications Reference Speed Setpoint #2
(frequency)
:
F813
.
Once set, as the input signal value changes, the output frequency of the drive
will vary in accordance with the above settings.
This parameter sets the Communications Reference input value that represents
Communications Reference Speed Setpoint #1 (frequency). This value is
entered as 0 to 100% of the Communications Reference input value range.
Changes made to this parameter require that the power be cycled (Off then On)
for the changes to take effect.
Direct Access Number — F811
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 100.0
Units — %
F810
F811