Using the Keypad Devices
3-2-5
Dual Rating Selection
Func.
Name
Code
b049
Dual Rating Selection
Usage
Applications
Rated current (example)
Overload current
Name
V/f characteristic
curve
DC braking force for
deceleration
DC braking force at
start
Carrier frequency
during DC braking
Overload restriction
level
Overload restriction
level 2
Carrier frequency
Motor capacity
Func. code
d009
d010
d012
b040
b041
b042
b043
b044
b045
62
The MX2 series inverter has Dual Rating, so that it can work in two different
types of load condition, Constant torque application and Variable torque appli-
cation. Select parameter
"A" Function
When changed, the rated output current and related items are changed auto-
matically. Differences between HD and ND are described below.
For heavy load with high torque required at
start, acceleration or deceleration
Elevators, cranes, conveyers, etc.
1.0 A (3-phase 200 V 0.1 kW)
150% 60 sec.
Initial values of HD and ND are different shown as below table. Be sure to
note that when the dual rating selection b049 is changed those initial values
are also changed except H003/H203. (Even if currently set value is within the
range of both HD and ND, data is initialized when b049 is changed.)
Func.
code
Range
A044
00: Const. torque
A244
01: Reduced torque
02: Free V/F
03: SLV
A054
0 to 100 (%)
A057
0 to 100 (%)
A059
2.0 to 15.0(kHz)
b022
(0.20 to 2.00)
x Rated current (A)
b222
b025
b083
2.0 to 15.0(kHz)
H003
0.1 to 15(kW)
H203
When ND is selected, following parameters are not displayed.
Name
Torque command monitor
Torque bias monitor
Torque monitor
Torque limit selection
Torque limit (1)
Torque limit (2)
Torque limit (3)
Torque limit (4)
Torque LAD STOP selection
b049
depending on your application.
Description
Two options; select codes:
00 ...CT (Constant Torque)
01 ...VT (Variable Torque)
HD
HD
initial data
00: Const. tq.
50 (%)
0 (%)
5.0(kHz)
1.50 x Rated
current (A)
5.0(kHz)
Depends on
type
Func. code
C058
C059
H001
H002/H202
H005/H205
H020/H220
H021/H221
H022/H222
H023/H223
Section 3-2
Run
Defaults
Mode
EU
Edit
00
ND
For normal load without high
torque required.
fans, pumps, air-conditionings
1.2 A (3-phase 200 V 0.1 kW)
120% 60 sec.
ND
Range
initial data
00: Const. torque
00: Const. tq.
01: Reduced tq.
02: Free V/F
0 to 70 %
50 (%)
0 to 70 %
0 (%)
2.0 to 10.0(kHz)
2.0(kHz)
(0.20 to 1.50)
1.20 x Rated
x Rated current (A)
current (A)
2.0 to 10.0(kHz)
2.0(kHz)
0.2 to 18.5(kW)
One size up
than HD
Name
Over/under-torque level (FW,RG)
Output mode of Over/under-torque
Auto-tuning selection
Motor constant selection
Motor speed response constant
Motor constant R1
Motor constant R2
Motor constant L
Motor constant Io
Units
-
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