Hitachi S1 Series - Page 111

S1 series standard inverter
-106-
Function
code
Name
Detailed parameter description
Default
value
Modify
output filter
P03.07
Vector control slip
compensation
coefficient
(motoring)
Slip compensation coefficient is used to adjust the
slip frequency of vector control to improve speed
control precision. This parameter can be used to
control speed offset.
Setting range: 50–200%
100%
○
P03.08
Vector control slip
compensation
coefficient
(generating)
100%
○
P03.09
Current loop
proportional
coefficient P
Note: These two parameters are used to adjust PI
parameters of current loop; it affects dynamic
response speed and control precision of the
system directly. The default value needs no
adjustment under common conditions.
Setting range: 0–65535
1000
○
P03.10
Current loop
integral
coefficient I
1000
○
P03.11
Torque setup
mode selection
0: Torque control invalid
1: Set via keypad (P03.12)
2: Set via AI1
3: Set via AI2
4: Set via AI3 (up to 2.2kW)
5: Set via pulse frequency HDI/HDIA
6: Set via multi-step torque
7: Set via Modbus communication
8 - 12: Reserved
Note: Source 2-7, 100% corresponds to three
times of rated motor current
0
○
P03.12
Torque set by
keypad
-300.0%–300.0% (rated motor current)
20.0%
○
P03.13
Torque reference
filter time
0.000–10.000s
0.010s
○
P03.14
Source of upper
limit frequency
setup of forward
rotation in torque
control
0: Keypad (P03.16)
1: AI1
2: AI2
3: AI3 (up to 2.2kW)
4: Pulse frequency HDI/HDIA
5: Multi-step
6: Modbus communication
7 - 12: Reserved
0
○