Hitachi CP-X200 Instruction Manual page 129

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DC Bus AVR 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
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 may be longer in this
case.
Func.
Code
B055 DC bus AVR for decel.
P-gain
VpnP
B056 DC bus AVR for decel.
I-time
VpnI
B133 DC bus AVR selection
Vpn AVR
B134 Threshold voltage of DC bus
AVR setting
Vpn LVL
Difference between OV LAD STOP and DC bus AVR
This function is similar to OV LAD STOP (B130,B131) from the OV trip-less point of view.
The DC bus AVR has the higher priority when both OV LAD STOP function and DC bus AVR
function is set enabled.
Actual deceleration time
Fluctuation of the DC bus voltage
Please select the suitable function according to your system.
deceleration. When
is activated (B133=01),
trip-less operation
note that the
"B" Function
Name /
SRW Display
Proportional gain adjustment for
DC bus AVR function. Range is:
0.2 to 5.0
0000.2s
Integration time adjustment for
DC bus AVR function. Range is:
0.0 to 150.0
0000.2s
00 Disabled
01 Enabled
OFF
Setting of threshold voltage of
DC bus voltage to start DC bus
AVR function. Range is:
200V class 330 to 395
400V class 660 to 790
00380V
DC bus voltage
Threshold voltage to start DC bus AVR (B134)
this
Freq
during
actual
Normal
operation
Description
OV LAD STOP
Short
Big
t
t
DC bus AVR
Defaults
Run
Mode -FE -FU
Units
Edit
(EU) (USA)
0.2 0.2
0.2 0.2 sec
00 00
380 380 V
/760 /760
DC bus AVR
Long
Small