Hitachi P1-00250HFEF Basic Manual page 78

Chapter 4
[bA146]～[bA149] [bA-60]～[bA-63]
Overvoltage suppression - Over-excitation
Code/Name
bA146 00(Disable)/01(Always ON)/
Over
02(Only at deceleration)/
magnetization
03(Operation at set level)/
function selection
04(Only at Decel. and level)
(V/f) , 1st-motor
bA147
Time constant of
0.00～1.00(s)
over-magnetisation
output filter (V/f) ,
1st-motor
bA148
Over-magnetisation
50～400(%)
voltage gain (V/f) ,
1st-motor
(200V Class)
bA149
330.0～390.0(Vdc)
Over-magnetization
(400V Class)
control level setting
660.0～780.0(Vdc)
(V/f) , 1st-motor
・This function disables the AVR function output voltage,
works while in over-excitation.
・When [AA121]=00～02, 04～06, (V/f) is enabled.
・When [bA146]=03/04, it will be operative if DC voltage
exceeds [bA-149] level.
Dynamic braking (BRD) function
Code/Name
bA-60
Dynamic braking usage ratio
bA-61
Dynamic braking control
bA-62
Dynamic braking
activation level
bA-63
Dynamic braking
resistor value
・This function operates the braking resistor of the built-in
braking circuits models. To use the BRD, setting [bA-60]
and [bA-61] is required.
Range (unit) Initial value
02
0.30
100
(200V Class)
380
(400V Class)
760
Range (unit) Initial value
10.0
0.0～100.0(%)
00(Disable)/
01(Only while running) 00
02(Enable during stop)
(200V class)
(200V class)
330.0～390.0(V) 360.0
(400V class) (400V class)
720.0
660.0～780.0(V)
Inverter minimum Minimum
resistor value 600(Ω) resistance
For parameter configuration
Cooling-fan operation
Code/Name
bA-70
Cooling fan
control selection
bA-71
Cooling fan
control selection
・The Inverter cooling fan can be stopped.
・If you change the cooling-fan, assigning [bA-71]=01 you
will be able to clear the accumulated operation time.
2nd motor When Intelligent Input terminal 024[SET] is enabled.
Code/Name
bA202 Frequency upper limit, 2nd motor
bA203 Frequency lower limit, 2nd motor
bA210 Torque limit selection, 2nd motor
bA211 Torque limit LADSTOP enable, 2nd motor
bA212 Torque limit (1) (forward-driving in
4-quadrant mode), 2nd motor
bA213 Torque limit (2) (reverse- regenerating in
4-quadrant mode), 2nd motor
bA214 Torque limit (3) (reverse-driving in
4-quadrant mode), 2nd motor
bA215 Torque limit (4) (forward- regenerating in
4-quadrant mode), 2nd motor
bA220 Overcurrent suppression enable, 2nd
motor
bA221 Overcurrent suppression level, 2nd-motor
bA222 Overload restriction 1 selection, 2nd-motor Same as bA122
bA223 Overload restriction 1 level, 2nd-motor
bA224 Overload restriction 1 active time,
2nd-motor
bA226 Overload restriction 2 selection, 2nd-motor Same as bA126
bA227 Overload restriction 2 level, 2nd-motor
bA228 Overload restriction 2 active time,
2nd-motor
bA240 Overvoltage suppression enable,
2nd-motor
bA241 Overvoltage suppression level, 2nd-motor
bA242 Overvoltage suppression action time,
2nd-motor
bA244 Overvoltage suppression proportional gain,
2nd-motor
bA245 Overvoltage suppression integral time,
2nd-motor
bA246 Over-excitation function selection,
2nd-motor
bA247 Time constant of over-excitation output
filter (V/f) , 2nd-motor
bA248 Over-excitation voltage gain, 2nd-motor
bA249 Over-excitation control level setting,
2nd-motor
4-30
[bA-70]～[bA249]
Range (unit)
00(Always ON)/
01(While inverter operates)/
02(Depends on temperature)
00(Disable)/01(Clear)
Range
(unit)
Same as bA102
Same as bA103
Same as bA110
Same as bA111
Same as bA112
Same as bA113
Same as bA114
Same as bA115
Same as bA120
Same as bA121
Same as bA123
Same as bA124
Same as bA127
Same as bA128
Same as bA140
Same as bA141
Same as bA142
Same as bA144
Same as bA145
Same as bA146
Same as bA147
Same as bA148
Same as bA149
Initial
value
00
00
Initial
value