Dc Bus Avr (Automatic Voltage Regulation) For Deceleration Settings - Hitachi WJ200 Series Instruction Manual

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DC Bus AVR (Automatic Voltage Regulation) for Deceleration Settings

This function is to achieve stable DC
bus voltage in case of deceleration. DC
bus voltage rises due to regeneration
during
function is activated (B130=01 or 02),
inverter controls the deceleration time
so that the DC bus voltage not to go up
to the overvoltage trip level, and leads
to the
deceleration.
Please
deceleration time can be longer in this
case.
Func.
Code
Deceleration overvoltage
B130
suppression enable
Decel. overvolt. suppress
B131
level
Decel. overvolt. suppress
b132
const.
Decel. overvolt. suppress
B133
proportional gain
Decel. overvolt. suppress
B134
integral time
deceleration. When
trip-less operation
note that the
"b" Function
Name
00...Disabled
01...Enabled
02...Enabled with accel.
DC bus voltage of suppression.
Range is:
200V class...330 to 395
400V class...660 to 790
Accel. rate when b130=02.
Set range: 0.10 ~ 30.00 sec.
Proportional gain when b130=01.
Range is: 0.00 to 5.00
Integration time when b130=01.
Range is: 0.00 to 150.0
DC bus voltage
Threshold voltage to start DC bus AVR (B131)
this
during Freq
actual
Normal
operation
Description
t
t
DC bus AVR
Defaults
Run
Mode
Lnitial data Units
Edit
00 −
380 V
/760
1.00 sec
0.20 −
1.0 sec