4 Quick Setup
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Continued
Para�
Parameter name
Default
Commissioning
other hydraulic basic settings
A3-08
Maximum reverse motor speed
20�0
Range from 0�0% to 100�0%�
A3-09
Minimum flow
0�5
Range from 0�0 to 50�0%�
Note
: both A3-09 and A3-10 are for keeping hydraulic circuit some pressure,
even if pressure or flow command is zero, because usually there is oil leakage
which leads to air penetration which causes running noise and pressure
vibration� But if user thinks it unnecessary, then set it 0�
A3-10
Minimum pressure
0�5
Range from 0�0 to 50�0 kg/cm
2
�
Note
: both A3-09 and A3-10 are for keeping hydraulic circuit some pressure,
even if pressure or flow command is zero, because usually there is oil leakage
which leads to air penetration which causes running noise and pressure
vibration� But if user thinks it unnecessary, then set it 0�
pressure response commissioning
A3-05
Hydraulic pressure control proportional gain
kp1
210�0
Range from 0�0 to 800�0�
Note
: the larger the kp1, the shorter the rise time of pressure, at the same
time, large kp1 may cause too large overshoot�
A3-06
Hydraulic pressure control integral time ti1
0�100
Range from 0�001 to 10�000sec�
Note
: the smaller the ti1, the smaller the static error of pressure, at the same
time, small ti1 may cause too large overshoot�
Static error means the difference between command and feedback when
feedback reaches steady state�
A3-07
Hydraulic pressure control derivative time
td1
0�000
Range from 0�000 to 1�000sec�
Note
: the larger the td1, the smaller the overshoot and the shorter the
adjusting time� At the beginning of pressure response commissioning, A3-07 is
unnecessary, only when overshoot is not easy to overcome by adjusting kp1
and ti1�
Backup user’s parameters
FP-05
User’s parameter backup operation
0
0: no operation
1: backup user’s parameters
Note
: every time when finish this quick setup, please use FP-05 to back up
the above parameters, which is useful especially when it is not sure what
parameter changes have happened� Besides, it’s easy to restore user’s
parameters by setting FP-01=3�
OVER
