N700 Operating Instructions and Parts Manual
11. Explanation of C-Group
129
Code
Function name
Initial
value
Unit
Setting
range
Contents
360
330~380 In case of LF(200V) class inverter, setting is valid.
C020 BRD ON level
720
V
660~760 In case of HF(400V) class inverter, setting is valid.
C021 BRD using ratio
0.0
%
0.0~100.0
The usage ratio of BRD is set by 0.1% unit
When inverter exceeds the usage ratio, a trip
occurs.
Table 11- 7 BRD (Dynamic braking) function (C019~C021)
Note 1) BRD ON level is the voltage setting of the DC (direct current) voltage of the inverter.
(5) Using ratio of BRD (%) =
1 0 0
1 0 0 s e c
×
( t 1 + t 2 + t 3 )
t1
t2
t3
BRD 동작
action
Fig. 11- 5 Using ratio of BRD
11.6
PID function (C022 ~ C027)
z
This integrated process control function can be used for controls such as constant flow and
control for fan and pump applications.
z
When using this function set C022 to 01 or 02. Turn off the terminal in the case that you
validate this function or turn on the terminals in the case that you invalidate this function after
assigned 21 (PID valid/invalid) to intelligent input terminals in the case of switching valid /
invalid of this function with the outside signal.
Code
Function name
Initial value
Unit
Setting range
Contents
0 PID
Invalid
1
PID valid (Increase
frequency when the PID
value is less then the
target value.)
C022 PID
selection
0
-
2
PID valid (Decrease
frequency when the PID
value is less then the
target value.)
C023 PID-P
gain
2.0
-
0.0~5.0 Proportional
gain
C024
PID-I gain
1
Sec.
0~3600
Integration Gain
C025
PID-D gain
0.0
Sec.
0.0~100.0
Derivative gain
C026
PID-Feedback gain
1.00
Sec.
0.00~99.99
Feedback gain
0 Current
(4~20mA)
C027
PID-Feedback
source selection
0 -
1 Voltage
(0~10V)
o029
PID Deviation
setting level
3.0
%
0.0~100.0
See the page 115.
Table 11- 8 PID function table
