REXROTH Fv Series, Instruction Manual

Page: 134 / 222

E3.08
Deviation limit Factory Default 2.0 %
Setting range
0.0 % − 20.0 %
(of closed loop reference)
Minimum unit 0.1 %
Used to set the limit of the deviation between reference signals and feedback
signals to stop internal PID control and keep stable output.
●
PID control stops when feedback deviation is within the range of ‘Devia‐
tion limit’ [E3.08].
Control accuracy and stability of the system should be taken into
account in setting of parameter ‘Deviation limit’ [E3.08].
E3.09
PID adjustment mode Factory Default 0
Setting range 0, 1 Minimum unit 1
In closed loop PID control, if the output value reaches parameter ‘Upper limit
frequency’ [b1.06] or ‘Lower limit frequency’ [b1.07], the integral loop has two
options:
●
0: Stop integral adjustment
–
The integral value remains unchanged.
–
When the difference between reference value and feedback
value changes, the integral value will change immediately
with the changing trend.
● 1: Continue integral adjustment
–
The integral value responds simultaneously to the difference
change between the reference value and the feedback value.
–
When the difference between the reference values and the
feedback value changes, more time is needed to compensate
the impact of continuous integral adjustment for the integral
value to follow the changing trend.
Bosch Rexroth AG DOK-RCON02-FV*********IB01-EN-P
Rexroth Frequency Converter Fv
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Parameter Settings