Mitsubishi Electric FR-V520-1.5K to 55K Instruction Manual page 55

Function list (Simple mode parameters)
5.1.2 Explanation of simple mode parameters
Refer to the separately available Instruction Manual (detailed) for details.
Pr. 1 "maximum speed", Pr. 2 "minimum speed"
! You can clamp the upper and lower limits of the output
speed.
Speed setting
CAUTION
Note that when you have set the minimum
speed, merely turning on the start signal will
start the motor at the preset speed, without the
input of the speed command, according to the
acceleration time setting.
Pr. 7 "acceleration time", Pr. 8 "deceleration time"
! The time taken to reach the Pr. 20 acceleration/
deceleration reference speed (factory-set to 1500r/
min) from 0r/min is set as the acceleration time, and
the time taken to reach 0r/min from the Pr. 20 (factory-
set to 1500r/min) speed is set as the deceleration
time.
r. 20
r/min
Acceleration time
Pr. 7
Maximum
speed
Pr. 1
Minimum
speed
Pr. 2
10V
Time (s)
Deceleration time
Pr. 8
Pr. 4 "multi-speed setting (high speed)"
Pr. 5 "multi-speed setting (middle speed)"
Pr. 6 "multi-speed setting (low speed)"
! You can select any speed (RH, RM, RL) by simply
switching the external contact signal.
High speed
Middle speed
Low speed
! You can also set each speed to any value within the
range of 0 to 3600r/min during inverter operation.
! Using the extended function, you can set up to 15
speeds.
Refer to the Instruction Manual (detailed) for the
setting method.
Pr. 72 "PWM frequency"
! You can change the motor sound.
Setting Carrier Frequency
1
(factory setting)
2
3
4
5 11.25kHz
6
REMARKS
! Increasing the value reduces the sound level
but increases noise and leakage currents.
! R efer to page 62 for P r. 240 "soft PW M control".
51
RH RM RL
ON OFF OFF
OFF ON OFF
OFF OFF ON
2.25kHz
4.5kHz
6.75kHz
9kHz
13.5kHz