26
Pr. 3 "base frequency"
Pr. 4 "multi-speed setting (high speed)"
Pr. 5
"multi-speed setting (middle speed)"
Pr. 6 "multi-speed setting (low speed)"
• Set the base frequency (reference
frequency at rated motor torque)
within the range 0 to 120Hz
according to the motor.
Pr. 7 "acceleration time",
Pr. 8 "deceleration time"
• You can select any speed (RH, RM,
RL) by simply changing the external
contact signal.
RH RM RL
High speed ON OFF OFF
Middle speed OFF ON OFF
Low speed OFF OFF ON
• Each speed (frequency) can be set
to any value within the range 0 to
120Hz if the inverter is running.
• The extended functions enable
setting of up to 15 speeds.
Pr. 9 "electronic thermal O/L relay"
• As the acceleration time, set the
time taken to reach the
acceleration/deceleration reference
frequency in Pr. 20 from 0Hz, and
as the deceleration time, set the
time taken to reach 0Hz from the
Pr. 20 value.
Acceleration time
Deceleration time
Pr.20
Pr.7 Pr.8
0Hz
Output frequency
Pr. 30 "extended function display
selection"
• Set this parameter when
showing/setting the extended
function parameters.
Settin
Description
0
Only basic functions are displayed.
1 All parameters are displayed.
• You can set a current value for
protection of the motor from overheat.
Normally, set the rated motor current at
50Hz as it is.
• At the setting of 0A, motor protection
does not function.
The output transistor
protection of the inverter functions.)
• When connecting multiple motors to the
inverter, provide external thermal relays
to individual motors.
• For the 0.1K to 0.75K, this value is
factory-set to 85% of the rated inverter
current.
Pr. 79 "operation mode selection"
• The inverter has two different operation modes: operation under control of
external signals and operation from the PU (setting dial,
RUN
key). You can
use either or both operation modes.
Setting Description
0
PU (setting dial,
RUN
key) operation or external operation can be selected by the
PU
EXT
key.
1
Only PU (setting dial,
RUN
key) operation may be performed.
2 Only external operation may be performed.
Running frequency Start signal
3
•
Setting made by setting dial
•
Multi-speed selection
•
4 to 20mA (Made valid when AU signal turns on)
External terminal
(STF/STR)
Running frequency Start signal
4
External terminal signals (multi-speed, 0 to 5VDC, etc.)
RUN
key
7
PU operation interlock
(Switching to PU operation mode is enabled/disabled by turning MRS signal ON/OFF)
8
Operation mode external signal switching (disabled during operation)
Turn X16 signal ON/OFF to choose operation mode.
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