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Function list (Simple mode parameters)
5.1.2 Explanation of simple mode parameters
Refer to the separately available Instruction Manual (detailed) for details.
!
You can clamp the upper and lower limits of the output
speed.
Pr. 1 "maximum speed", Pr. 2 "minimum speed"
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.
Speed setting
Maximum
speed
Pr. 1
Pr. 2
Minimum
speed
10V
Speed
CAUTION
!
You can select any speed (RH, RM, RL) by simply
switching the external contact signal.
!
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. 4 "multi-speed setting (high speed)"
Pr. 5 "multi-speed setting (middle speed)"
Pr. 6 "multi-speed setting (low speed)"
RH RM RL
High speed ON OFF OFF
Middle speed OFF ON OFF
Low speed OFF OFF ON
!
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.
Pr. 7 "acceleration time", Pr. 8 "deceleration time"
Acceleration time
Deceleration time
r. 20
Pr. 7
Pr. 8
r/min
Time (s)
Running speed
(r/min)
!
You can change the motor sound.
Pr. 72 "PWM frequency"
Setting Carrier Frequency
1
(factory setting)
2.25kHz
24.5kHz
36.75kHz
49kHz
511.25kHz
613.5kHz
REMARKS
!
Increasing the value reduces the sound level
but increases noise and leakage currents.
!
Refer to page 62 for Pr. 240 "soft PWM control".