Mode #1/#2 Switching Frequency; Analog Input Filter - Toshiba G7 Operation Manual

F207
Frequency Mode #2
Program ⇒ Fundamental Parameters ⇒ Standard Mode Selection
This parameter selects the source of the frequency command signal to be used
as Frequency Mode #2 in the event that Frequency Mode #1 is disabled or if
Frequency Mode #2 is set up as the primary control parameter. See
F200 for additional information on this setting.
Settings:
Use VI/II
Use RR
Use RX
Use Option Card RX2
Use LED Keypad Option
Use Binary/BCD Input
Use Common Serial (TTL)
Use RS232/RS485
Use Communication Card
Use Motorized Pot. Simulation
Use Pulse Input Option

Mode #1/#2 Switching Frequency

Program ⇒ Fundamental Parameters ⇒ Standard Mode Selection ⇒
Mode #1/#2 Switching Frequency
This parameter sets the threshold frequency that will be used in
determine if Frequency Source #1 or #2 will control the output of the ASD.
See F200 for additional information on this setting.

Analog Input Filter

Program ⇒ Frequency Setting Parameters ⇒ Analog Filter
Analog filtering is applied after the analog reference signal is converted to a
digital signal. The type of filtering used is Rolling Average over time.
Settings:
None
Small
Medium
Large
The analog input signal is sampled and converted to a digital signal. With no
filtering applied, the digital value from the conversion is scaled for use by the
microprocessor of the ASD.
If the filtering selection is Small, the ASD averages the last 5 sampled (digital)
values. The rolling average is updated (every 4 µS) and scaled for use by the
microprocessor.
If the filtering selection is Medium, the ASD averages the last 20 sampled
(digital) values. The rolling average is updated (every 4 µS) and scaled for use
by the microprocessor.
If the filtering selection is Large, the ASD averages the last 50 sampled
(digital) values. The rolling average is updated (every 4 µS) and scaled for use
by the microprocessor.
False responses to electrical noise are eliminated with no loss in bandwidth
because the value used by the drive is the average value of several samples.
94
Direct Access Number — F207
Parameter Type — Selection List
Factory Default — VI/II
Changeable During Run — Yes
F004 and
Direct Access Number — F208
Parameter Type — Numerical
Factory Default — 1.0
Changeable During Run — Yes
F200 to
Minimum — 0.1
Maximum — Max. Freq. (F011)
Units — Hz
Direct Access Number — F209
Parameter Type — Selection List
Factory Default — None
Changeable During Run — Yes
F209
G7 ASD Operation Manual