Справочник Пользователя для Mitsubishi Electronics FR-A500

81

You can select the optimum output characteristic (V/F characteristic) for the application and load

characteristics.

z

 The output voltage is automatically set by intelligent mode when "4" (energy-saving mode) is set in Pr. 60

"intelligent mode selection". (Refer to page 100.)

.

14

0

0 to 5

0

For constant-torque load

Conveyor, cart, etc.

1

For variable-torque load

Fan, pump

2

For constant-

torque lift

Boost for reverse rotation 0%

Boost for forward rotation...Pr. 0 setting

For lift load

3

Boost for forward rotation 0%

Boost for reverse rotation...Pr. 0 setting

4

RT signal

ON...For constant-torque load  (same as in setting = 0)

Load pattern selection 
switching function using RT 
signal

OFF...For constant-torque lift, boost for reverse rotation 0% (same as in 
setting = 2)

5

RT signal

ON...For constant-torque load  (same as in setting = 0)

OFF...For constant-torque lift, boost for forward rotation 0% (same as in 
setting = 3)

Note: 1. This parameter setting is ignored when Pr. 80 and Pr. 81 have been set to select the advanced

magnetic flux vector control mode.

2. When the RT signal is on, the other second functions such as second acceleration/deceleration

time and second torque boost are also selected.

3. When the setting is 4 or 5, X17 signal may be used instead of the RT signal. Use any of Pr. 180

to Pr. 186 to assign the terminal used to input the X17 signal.

Pr. 0 "torque boost"

Pr. 60 "intelligent mode selection"

Pr. 80 "motor capacity"

Pr. 81 "number of motor poles"

Pr. 180 to Pr. 186 

      (input terminal function selection)

Related parameters

100%

Pr.14=0

Output frequency (Hz)

For constant-torque loads
(e.g. conveyor, cart)

Ou

tpu

t vo

lt

a

g

e

Base frequency

Output frequency (Hz)

For variable-torque loads
(Fan, pump)

100%

Out

p

u

t v

o

ltag

e

Base frequency

Pr.14=1

Output frequency (Hz)

or lift
oost for forward rotation...Pr. 0 setting
oost for reverse rotation...0%

100%

Pr.0

Ou

tpu

t voltag

e

Forward
rotation

Reverse
rotation

Base frequency

Pr.14=2

100%

Pr.0

Pr.14=3

Output frequency (Hz)

For lift
Boost for forward rotation...0%
Boost for reverse rotation...Pr. 0 setting

O

u

tp

ut vo

lt

a

g

e

Reverse
rotation

Forward
rotation

Base frequency