Mitsubishi Electric FR-A741-11K, Instrucion Manual

Page: 63 / 217

56
Before operation
4.3 Before operation
4.3.1 Simple mode parameter list
For simple variable-speed operation of the inverter, the initial setting of the parameters may be used as they are. Set
the necessary parameters to meet the load and operational specifications. Parameter setting, change and check can
be made from the operation panel (FR-DU07). For details of parameters, refer to
chapter 4 of the instruction manual
(applied) .
POINT
Only simple mode parameter can be displayed using Pr.160 User group read selection . (All parameters are displayed
with the initial setting.) Set Pr. 160 User group read selection as required. (Refer to page 52 for parameter change.)
Pr. 160 Description
9999 Only the simple mode parameters can be displayed.
0
(Initial Value)
Simple mode and extended mode parameters can be displayed.
1 Only the parameters registered in the user group can be displayed.
Parameter
Number
Name
Incre
ments
Initial
Value
Range Applications
Refer
to
0 Torque boost
0.1% 3/2%
*1
0 to 30%
Set to increase a starting torque or when the
motor with a load will not rotate, resulting in an
alarm [OL] and a trip [OC1]
*1 The initial value differs according to the inverter
capacity. (7.5K or less/11K or more)
59
1
Maximum
frequency
0.01Hz 120Hz 0 to 120Hz
Set when the maximum output frequency need
to be limited.
60
2
Minimum
frequency
0.01Hz 0Hz 0 to 120Hz
Set when the minimum output frequency need
to be limited.
60
3 Base frequency
0.01Hz 60Hz 0 to 400Hz
Set when the rated motor frequency is 50Hz.
Check the motor rating plate.
58
4
Multi-speed setting
(high speed)
0.01Hz 60Hz 0 to 400Hz
Set when changing the preset speed in the
parameter with a terminal.
89 5
Multi-speed setting
(middle speed)
0.01Hz 30Hz 0 to 400Hz
6
Multi-speed setting
(low speed)
0.01Hz 10Hz 0 to 400Hz
7 Acceleration time
0.1s 5/15s
*2
0 to 3600s
Acceleration/deceleration time can be set.
*2 The initial value differs according to the inverter
capacity. (7.5K or less/11K or more)
61
8 Deceleration time 0.1s 5/15s
*2
0 to 3600s
9
Electronic thermal
O/L relay
0.01A
Inverter
rated
current
0 to 500A
Protect the motor from overheat by the inverter.
Set the rated motor current.
57
79
Operation mode
selection
1 0 0, 1, 2, 3, 4, 6, 7
Select the operation command location and
frequency command location.
62
125
Terminal 2
frequency setting
gain frequency
0.01Hz 60Hz 0 to 400Hz
Frequency for the maximum value of the
potentiometer (5V initial value) can be changed.
92
126
Terminal 4
frequency setting
gain frequency
0.01Hz 60Hz 0 to 400Hz
Frequency for the maximum current input
(20mA initial value) can be changed.
94
160
User group read
selection
1 0 0, 1, 9999
Parameter which can be read from the
operation panel and parameter unit can be
restricted.
—