6. Description of Parameters
- 127 -
6
Function Code
Parameter Name
Setting Range
Default
FA-08
PID output limit in
reverse direction
0.00 Hz to max. frequency
2.00 Hz
FA-08: In some applications a high PID output in reverse direction may introduce adverse
reactions and so a limit need to be applied".
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When frequency reference setting channel is purely PID reference, FA-08 limits the
output in reverse direction.
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When frequency reference setting channel is main frequency ref PID
reference, FA-08 limits the calculation result in reverse direction.
Function Code
Parameter Name
Setting Range
Default
FA-09
PID error limit
0.0% to 100.0%
0.0%
FA-09: This function helps to make the AC drive output accurate and stable.
Function Code
Parameter Name
Setting Range
Default
FA-10
PID differential limit
0.00% to 100.00%
0.10%
FA-10 applies a limit to PID differential output as a large output can cause excessive
system oscillation.
Function Code
Parameter Name
Setting Range
Default
FA-11
PID reference change time
0.00s to 650.00s
0.00s
FA-11 sets time it takes PID reference to change from 0.0% to 100.0%. PID reference
changes linearly based on the time set in this parameter, reducing negative impact of
sudden PID reference change.
Function Code
Parameter Name
Setting Range
Default
FA-12
3,'IHHGEDFN¿OWHUWLPH
0.00s to 60.00s
0.00s
FA-13
3,'RXWSXW¿OWHUWLPH
0.00s to 60.00s
0.00s
FA-12 filters the PID feedback, which helps to lower interference on PID feedback but
slows system response performance.
)$¿OWHUVWKH3,'RXWSXWIUHTXHQF\ZKLFKKHOSVWRGURSRIIPXWDWLRQRIWKH$&GULYH
output frequency but slows system response performance.
Summary of Contents for MD290 Series
Page 1: ......
Page 79: ...3 Electrical Installation 78 3 ...
Page 80: ...4 Operating Panel Keypad Display 4 1 Introduction 80 4 2 Inbuilt LED Operating Panel 80 ...
Page 92: ...5 Quick Setup 5 1 Get Familiar With Operating Panel 92 5 2 Setup Flowchart 93 ...
Page 227: ...7 Interfaces and Communication 226 7 ...
Page 285: ...10 Troubleshooting 284 11 ...
Page 349: ......
Page 350: ......
