Fuji Electric TP-A1 - Setting up Frequency

3-10
3.3.2 Setting up reference frequency
You can set up the desired reference frequency by using
and keys on the keypad. It is also possible to
set up the frequency command as load shaft speed, motor speed or speed (%) by setting the speed monitor
selection function.*
2
*2 Function code K11 for the FRENIC-HVAC/AQUA series
Function code E48 for the FRENIC-Ace series
 Setting up a frequency command
Using the keypad (F01 = 0 (factory default) or 8)
(1) Set function code F01 to "0" or "8" ( /
keys on keypad).
If the keypad is in Programming or Alarm mode, switch it to Running
mode in which it is possible to set up a frequency command using
the
/
keys.
(2) Press the
/ key to display the current reference frequency.
The lowest digit blinks.
(3) To change the reference frequency, press the
/ key again.
The new setting can be saved into the inverter's internal memory.
Figure 3.4 Setting up Frequency
Command (display sample)
• The reference frequency will be saved either automatically by turning the main power OFF o
r
only by pressing the key. You can choose either way using function code E64.
• When you start specifying the reference frequency or any other parameter with the
/ key,
the least significant digit on the display blinks; that is, the cursor lies in the least significant digit.
Holding down the
/ key changes data in the least significant digit and generates a carry,
while the cursor remains in the least significant digit.
Using the
/ key moves the cursor (blinking) between digits, making change to the large
value easily.
• Setting F01 data to "8" (
/ keys on keypad) enables the balanceless-bumpless switching.
When the frequency command source is switched to the keypad from any other source, the
inverter inherits the current frequency that has applied before switching, providing smooth
switching and shockless running.
Using analog input (F01 = 1 to 3, or 5)
• Applying the gain and bias to analog inputs (voltage inputs to terminals [12] and [V2], and current input to
terminal [C1]) enables the frequency to be set within an arbitrary range (frequency vs. analog input level).
(Refer to the descriptions of F18, C32, C37, C42, C61, and C67.)
• Noise reduction filters are applicable to these analog inputs.
(Refer to the descriptions of C33, C38 and C43.)
• The normal/inverse operation for the frequency command 1 setting (F01) can be selected with function code
C53 and be switched between them with the terminal command IVS assigned to any of the digital input
terminals.
(Refer to the descriptions of E01 through E07.)
• To input bipolar analog voltage (0 to 10 VDC) to terminals [12] and [V2], set C35 and C45 data
to "0." Setting C35 and C45 data to "1" enables the voltage range from 0 to +10 VDC and
interprets the negative polarity input from 0 to -10 VDC as 0 V.
• A reference frequency can be specified not only as frequency (Hz) but also as any other menu
item, depending on the setting of function code K11 (= 4, 5, or 8) or E48 (= 3, 4, 5, or 6).