Mitsubishi Electric FR-V500 Series Instruction Manual page 55

Biases and gains of speed setting terminals
(Pr. 902 to Pr. 905, Pr. 917 to Pr. 920)
<Setting>
There are the following three methods to adjust the speed setting voltage bias and gain.
1) Method to adjust any point by application of a voltage to across terminals 2(1)(3) - 5
2) Method to adjust any point without application of a voltage to across terminals 2(1)(3) - 5
3) Method that does not adjust the bias voltage
(Example) Pr. 903 "speed setting terminal 2 gain"
(Pr. 902 to Pr. 920 can be adjusted in the similar manner.)
<Adjustment procedure> Using the speed setting signal from the control panel (FR-DU04
(1) Power on (monitoring mode)
FR-DU04
-1 CONTROL PANEL
Hz/r
A
V
MON EXT PU
REV FWD
REMARKS
ON of the LED is indicated by
2) Set 1 (PU operation mode) in Pr. 79 "operation mode selection". (Refer to page 56.)
Example: To change the external operation mode (Pr. 79 = 2) to the PU operation mode (Pr. 79 = 1)
Press to choose the "parameter setting mode".
MODE
Parameter setting mode
FR-DU04
-1 CONTROL PANEL
Hz/r
SET
A
V
MON EXT PU
REV FWD
Current setting
SET
(3) Read Pr. 903 to display the currently set gain speed.
Parameter setting mode
Press to choose the "parameter setting mode".
MODE
FR-DU04
CONTROL PANEL
-1
MON EXT PU
REV FWD
Currently set gain speed
FR-DU04
-1 CONTROL PANEL
MON EXT PU
REV FWD
, and OFF by .
Most significant
Middle digit flickering
digit flickering
SET
Press for
1.5 s
Setting change
SET
Flicker
Most significant
digit flickering
SET
Hz/r
A
V
Hz/r
0 to 9
A
V
(2) Choose the PU operation mode.
1) Press to make sure that the inverter is in the
MODE
PU operation mode. (LED of PU is lit.) (Refer to
page 28 for monitor transition.)
Operation mode (PU operation mode)
FR-DU04
-1
MON
Least significant
digit flickering
× 7 times
SET
0 to 9
Setting write
If
Check that the forward rotation (STF)
or reverse rotation (STR) signal connected
to the control terminal is not on. If on, turn it off.
"1" (PU operation mode) has been set in Pr. 79.
If
1.5s when writing the value.
Press
more time.
Middle digit flickering
× 9 times
SET
52
) to make speed setting
-1
CONTROL PANEL
Hz/r
A
V
EXT PU
REV FWD
× 9 times
0 to 9
appears
appears, you did not press
SET
once, press , and make setting one
SET
Least significant
digit flickering
SET
× 3 times
SET
0 to 9
for