Hitachi L2002 - Manual (Page 126)

“B” Group: Fine Tuning Functions
Configur
ing
Dr
iv
e P
a
ra
m
e
ters
3–46
B150: Carrier Mode – If B083 Carrier Frequency setting is greater than 4 kHz, then
the B150 Carrier Mode function (if enabled) will reduce the actual carrier frequency
downward to 4 kHz as the inverter’s internal termperature increases.
B151: Quick start enable – This function and the intelligent input [RDY] (option code
52) have the same effect. If you need the inverter output to always have a quick response,
use parameter B151 and do not assign the [RDY] input. Otherwise, disable Quick Start
Enable (set B151=00) and assign the [RDY] input. Then you can enable the Quick Start
feature only when necessary. When the Quick Start feature is enabled, then access to
parameter editing is the same as when the inverter is in Run Mode.
NOTE: Parameter B151 cannot be read and copied to another inverter. This prevents
turning ON another inverter’s output unexpectedly.
B131 Over-voltage
LADSTOP level
Sets the threshold level for
over-voltage LADSTOP. When
the DC bus voltage is above the
threshold value, the inverter
stops deceleration until the DC
bus voltage is less than the
threshold setting again.
Two voltage ranges with 1V
resolution:
200V class: 330 to 390V
400V class: 660 to 780V
✔ ✔
380 /
760
380 /
760
V
LADST LVL 00380V
“B” Function Run
Mode
Edit
Lo Hi
Defaults
Func.
Code
Name /
SRW Display
Description
–FE(F)
(EU)
–FU
(USA)
Units
“B” Function Run
Mode
Edit
Lo Hi
Defaults
Func.
Code
Name /
SRW Display
Description
–FE(F)
(EU)
–FU
(USA)
Units
B150 Carrier mode Automatically reduces the
actual carrier frequency as
needed to avoid internal
overheating. Two option codes:
00... Disable
01... Enable
✘ ✔
00 00 —
Cr-DEC OFF
B151 Quick start enable Enables inverter output for
constant ON operation to speed
up response. Two option codes:
00... Disable
01... Enable
✔ ✔
00 00 —
RDY-Func OFF