Hitachi S1-00073HFE - Page 147

S1 series standard inverter
-142-
Function
code
Name
Detailed parameter description
Default
value
Modify
P10.29
Running time of
13
th
step
below.
Terminal 1
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Terminal 2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
Terminal 3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Terminal 4
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Step
0
1
2
3
4
5
6
7
Terminal 1
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Terminal 2
OFF
OFF
ON
ON
OFF
OFF
ON
ON
Terminal 3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Terminal 4
ON
ON
ON
ON
ON
ON
ON
ON
Step
8
9
10
11
12
13
14
15
0.0s(min)
○
P10.30
Multi-step speed
14
0.0%
○
P10.31
Running time of
14
th
step
0.0s(min)
○
P10.32
Multi-step speed
15
0.0%
○
P10.33
Running time of
15
th
step
0.0s(min)
○
P10.37
Multi-step time
unit
0: s; the running time of each step is counted in
seconds;
1: min; the running time of each step is counted in
minutes;
0
◎
P11 group Protection parameters
P11.00
Phase-loss
protection
0x000–0x111
Ones:
0: Disable software input phase loss protection
1: Enable software input phase loss protection
Tens:
0: Disable output phase loss protection
1: Enable output phase loss protection
Hundreds:
0: Disable hardware input phase loss protection
1: Enable hardware input phase loss protection
0x110
○
P11.01
Frequency-drop
at transient power
down
0: Disable
1: Enable
0
○
P11.02
Frequency-
drop ratio at
sudden power dip
Setting range: 0.00Hz/s – P00.03 (the max.
frequency)
After the power loss of the grid, the bus voltage
drops to the sudden frequency-decreasing point,
the inverter begin to decrease the running
frequency at P11.02, to make the inverter
generate power again. The returning power can
maintain the bus voltage to ensure a rated
running of the inverter until the recovery of power.
Note: 1. Adjust the parameter properly to avoid
the stopping caused by inverter protection during
the switching of the grid.
10.00
Hz/s
○