Hitachi L200 Manual Do Utilizador

“B” Group: Fine Tuning Functions

Configur

ing

Dr

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ters

The thermal overload detection protects the 
inverter and motor from overheating due to 
an excessive load. It uses a current/inverse 
time curve to determine the trip point.

First, use B013 to select the torque charac-
teristic that matches your load. This allows 
the inverter to utilize the best thermal 
overload characteristic for your application.

The torque developed in a motor is directly 
proportional to the current in the windings, 
which is also proportional to the heat generated (and temperature, over time). Therefore, 

B001 Selection of automatic 

restart mode

Select inverter restart method, 
four option codes:
00... Alarm output after trip,
        no automatic restart
01... Restart at 0Hz
02... Resume operation after
        frequency matching
03... Resume previous freq. 
after freq. matching, then 
decelerate to stop and display 
trip info.

✘

00

00

—

IPS POWR     ALM

B002 Allowable under-

voltage power failure 
time

The amount of time a power 
input under-voltage can occur 
without tripping the power 
failure alarm. Range is 0.3 to 
25 sec. If under-voltage exists 
longer than this time, the 
inverter trips, even if the restart 
mode is selected.

✘

1.0

1.0

sec.

IPS Time 0001.0s

B003 Retry wait time before 

motor restart

Time delay after under-voltage 
condition goes away, before 
the inverter runs motor again.
Range is 0.3 to 100 seconds.

✘

1.0

1.0

sec.

IPS Wait 0001.0s

B004 Instantaneous power 

failure / under-voltage 
trip alarm enable

Two option codes:
00... Disable
01... Enable

✘

00

00

sec.

IPS TRIP    OFF

B005 Number of restarts on 

power failure / under-
voltage trip events

Two option codes:
00... Restart 16 times
01... Always restart

✘

00

00

sec.

IPS RETRY   16

Output frequency

Constant torque

Reduced

torque

B013 = 01

B013 = 00

Torque

5

20

60

120

Hz

100%

80%

60%

0