4-33
4-2 Function Mode
4
Func
tions
<ASCII (C078 = 00)>
Transfer data using "command 01". To transfer feedback data, set the most significant byte of
frequency data to "1".
(Example) To send 5 Hz:
Transmission data is "set value × 100" and expressed in 6 bytes
→
"000500"
Set the most significant byte to "1".
→
"100500"
ASCII conversion
→
"31 30 30 35 30 30"
Note: With ASCII data, the set value is frequency (Hz).
<ModBus-RTU (C078 = 01)>
Write data in holding register address 0006h. (100% = 10000)
Note: You can read and write data. However, you can read data only when ModBus-RTU is selected for the PID
feedback. Data cannot be read under other settings.
• If "03" (pulse train input) is set for PID feedback A076, the Inverter obtains a percent conversion
result (100% at max. frequency) as a feedback value, relative to the input pulse train frequency
value (Hz).
Feedforward Selection
• Select a terminal used for feedforward signals in PID feedforward selection A079.
• The A079 setting is enabled even if the terminal selected in A079 is duplicated with the terminal
selected for target value or feedback value input.
• If A079 is set to "disabled", feedforward control is disabled.
Reverse PID Function
Depending on the sensor characteristics, the polarity of deviation between the target and feedback
values may not match the Inverter's command. In this case, you can invert the deviation polarity by
setting A077 to "01".
(Example) To control a refrigerator compressor:
If the specified temperature range of a temperature sensor is -20
°
C to 100
°
C at 0 to
10 (V), the target value is 0
°
C, and the current temperature is 10
°
C, the Inverter
reduces the frequency under normal PID control since the feedback value is higher
than the target value.
→
Set A077 to "01" so that the Inverter increases the frequency.
Register No.
Function name
Function code
R/W
Monitor data and setting
parameters
Data resolution
0006h
PID feedback
⎯
R/W
0 to 10000
0.01 [%]
PID target value
PID feedback value
-1
A077
PID operation
Содержание 3G3RX Series
Страница 1: ...Cat No I560 E1 03 USER S MANUAL SYSDRIVE RXSERIES High function General purpose Inverter ...
Страница 2: ......
Страница 17: ...Chapter 1 Overview 1 1 Functions 1 1 1 2 Appearance and Names of Parts 1 4 ...
Страница 22: ......
Страница 23: ...Chapter 2 Design 2 1 Installation 2 1 2 2 Wiring 2 6 ...
Страница 48: ......
Страница 108: ......
Страница 324: ......
Страница 325: ...Chapter 5 Maintenance Operations 5 1 Protective Functions and Troubleshooting 5 1 5 2 Warning Function 5 10 ...
Страница 337: ...Chapter 6 Inspection and Maintenance 6 1 Inspection and Maintenance 6 1 ...
Страница 348: ......
Страница 349: ...Chapter 7 Specifications 7 1 Standard Specification List 7 1 7 2 Dimensional Drawing 7 6 7 3 Options 7 14 ...
Страница 358: ...7 9 7 2 Dimensional Drawing 7 Specifications 3G3RX A2300 A4300 368 79 265 310 10 510 540 2 φ10 195 45 80 265 ...
Страница 360: ...7 11 7 2 Dimensional Drawing 7 Specifications 3G3RX A2550 380 670 700 2 φ12 12 380 480 250 352 79 ...
Страница 361: ...7 12 7 2 Dimensional Drawing 7 Specifications 3G3RX A4750 A4900 2 φ12 2 12 300 390 268 700 79 670 357 ...
Страница 362: ...7 13 7 2 Dimensional Drawing 7 Specifications 3G3RX A411K A413K 2 φ12 2 12 380 480 270 740 79 710 480 ...
Страница 369: ...7 20 7 3 Options 7 Specifications 3G3AX RBC4001 3G3AX RBC6001 100 150 280 300 5 70 100 70 150 390 410 5 ...
Страница 392: ......
Страница 393: ...Appendix Appendix 1 Parameter List App 1 Appendix 2 Product Life Curve App 41 Appendix 3 Life Alarm Output App 42 ...
Страница 436: ......
Страница 437: ...Index ...
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