Mitsubishi Electric FR-F740 EC Instruction Manual page 120

External operation
Screen at powering on
The monitor display appears.
Press the MODE key to choose the parameter
setting mode.
Turn the digital dial until P.79 (Pr. 79) appears.
Press the SET key to show the currently set value.
The initial value "0" appears.
Turn the digital dial clockwise to change it
to the setting value of "3".
Press the SET key to set.
Turn the start switch (STF or STR) on.
The motor runs at the frequency set in the set
frequency mode of the operation panel.
Turn the digital dial to change running frequency.
Display the frequency you want to set.
The frequency flickers for about 5s.
While the value is flickering, press the SET key
to set the frequency
(If you do not press the SET key, the value flickers
for about 5s and the display then returns
to 0.00 (display) Hz. At this time, return to
"Step
Turn the start switch (STF or STR) off.
The motor decelerates according to Pr. 8
"Deceleration time" to stop.
Fig. 4-22: Operate the inverter by using external signals
NOTES
Pr. 178 "STF terminal function selection" must be set to "60" (or Pr. 179 "STR terminal func-
tion selection" must be set to "61"). (All are initial values.)
When Pr. 79 "Operation mode selection" is set to "3", multi-speed operation (Refer to sec-
tion 4.6.2) is also made valid.
Possible faults:
● When the inverter is stopped by the STOP/RESET key of the operation panel (FR-DU07),
– Turn the start switch (STF or STR) off.
– The display can be reset by PU/EXT.
4 - 28
Operation
" and set the frequency again)
and
Flickering
Reverse
Forward
rotation
rotation
ON
Forward
rotation
OFF
are displayed alternately.
Display
The parameter number
read previously
appears.
Flicker ... Parameter setting complete!
Flickers for about 5s
Flicker ... Frequency setting complete!
Stop
Reverse
rotation
Operation
I001082E