Using Intelligent Output Terminals
Oper
ations
a
nd Moni
tor
ing
4–56
The table below shows the settings and their meanings. Use the one that matches your load.
Reduced Torque Characteristic
– The example below shows the effect of the reduced torque
characteristic curve (for example motor and current rating). At 20Hz, the output current is
reduced by a factor of 0.8 for given trip times.
Constant Torque Characteristic
– Selecting the constant torque characteristic for the example
motor gives the curves below. At 2.5 Hz, the output current is reduced by a factor of 0.9 for
given trip times.
Free Thermal Characteristic
- It is possible to set the electronic thermal characteristic using a
free-form curve defined by three data points, according to the table below.
Function Code
Data
Function/Description
B013 / B213 /B313
00
Reduced torque
01
Constant torque
02
Free-setting
Function
Code
Name
Description
Range
B015 /
B017 /
B019
Free-setting electronic
thermal frequency 1, 2, 3
Data point coordinates for Hz axis
(horizontal) in the free-form curve
0 to 400Hz
B016 /
B018 /
B020
Free setting electronic
thermal current 1, 2, 3
Data point coordinates for Ampere
axis (vertical) in the free-form curve
0.0 = (disable)
0.1 to 1000.
Trip
time (s)
Reduced trip current at 20 Hz
Trip current
reduction
factor
x 1.0
x 0.8
x 0.6
0
5
20
60
Hz
A
60
0.5
0
73.6
42.7 55.2
92.8% 120%
160%
Trip
time (s)
Reduced trip current at 2.5 Hz
Trip current
reduction
factor
x 1.0
x 0.9
x 0.8
0
2.5
5
60
Hz
A
60
0.5
0
82.8
47.8 62.1
104% 135%
180%
Содержание SJ300 Series
Страница 2: ......
Страница 138: ......
Страница 212: ......
Страница 213: ...Inverter System Accessories In This Chapter page Introduction 2 Component Descriptions 3 Dynamic Braking 6 5 ...
Страница 243: ...Glossary and Bibliography In This Appendix page Glossary 2 Bibliography 6 A ...
Страница 268: ......
Страница 269: ...Drive Parameter Settings Tables In This Appendix page Introduction 2 Parameter Settings for Keypad Entry 2 C ...
Страница 285: ...CE EMC Installation Guidelines In This Appendix page CE EMC Installation Guidelines 2 Hitachi EMC Recommendations 4 D ...
Страница 294: ......