Hitachi L700 SERIES Instruction Manual page 101

X1.0
Range of
X0.8
setting
0 5
(Example) When the output frequency is equal
to the setting of "b017" (When 11 to 75kW)
Trip time (s)
60
0.5
0 (x) (y)
(3) Thermal warning
You can configure this function so that the inverter outputs a warning signal before the electronic thermal
protection operates against motor overheat. You can also set the threshold level to output a warning signal
with the electronic thermal warning level setting (C061).
To output the warning signal, assign function "13" (THM) to one of the intelligent output terminals [11] to
[15] (C021 to C025) and the alarm relay terminal (C026).
Item
Electronic thermal
warning level setting
*1 Set the ratio (%) of the warning level to the integrated value of the electronic thermal characteristic. A
setting of 100% corresponds to the inverter trip due to overload (error code "E05").
Inverter output
frequency (Hz)
40
(x): ("setting of b018"/"rated current") x 109%
(y): ("setting of b018"/"rated current") x 120%
(z): ("setting of b018"/"rated current") x 150%
(z)
Function code
C061
1. to 100. (%) (*1)
Chapter 4 Explanation of Functions
Output
current (A)
b020
b018
b016
0
b01
Data
0. Disabling the warning output
Setting of the threshold level to output the
thermal warning signal
4 - 39
b017 b019
A004/A204/A304
Maximum frequency (Hz)
Description