3.3.2 Setting the reference speed (pre-ramp)
You can set the reference speed (pre-ramp) in frequency (Hz) with the
/
keys on the keypad in local
mode.
Using
/
keys in local mode
/
(1) Switch the keypad to Running mode. This is because in Programming or Alarm mode, the
keys
are disabled to set the reference speed (pre-ramp).
(2) Press the
/
keys to display the reference speed (pre-ramp) on the LCD monitor with the lowermost
digit blinking.
Figure 3.6 Setting the Speed Command in Local Mode
(3) The newly specified speed is not automatically saved in the inverter, so specify the speed again if necessary
when you restart the inverter.
•
When the speed monitor is selected (E43 = 0), the reference speed (pre-ramp) can be specified
with the
/
keys.
•
E48 specifies the speed-monitoring formats (unit). For details about the LED monitor, refer to
Section 3.3.3.
•
When you start accessing the reference speed (pre-ramp) with the
/
keys, the lowest digit
on the display will blink and start changing. As you are holding down the key, blinking will gradually
move to the upper digit places and the upper digits will be changeable.
•
Pressing the
key moves the changeable digit place (blinking) and thus allows you to change
upper digits easily.
Table 3.3 Available Speed Command Sources
Symbol Command
source Symbol Command
source
HAND
Keypad
MULTI
Multistep speed command
Analog speed command
(Not reversible)
Analog speed command
(Reversible)
ANALOGNR
ANALOG_R
RS485-1
Via RS485 communications link
LOADER
Via FRENIC Loader
JOG
Jogging operation
CAN
Via CAN communications link
3-7