Hitachi L100 Series Instruction Manual page 110

Output Function Adjustment Parameters
The following parameters work in
conjunction with the intelligent output
function, when configured. The overload
level parameter (C_41) sets the motor
current level at which the overload signal
[OL] turns ON. The range of settings is
from 0% to 200% of the rated current for
the inverter. This function is for generating
an early warning logic output, without
causing either a trip event or a restriction
of the motor current (those effects are
available on other functions).
The frequency arrival signal, [FA1] or
[FA2], is intended to indicate when the
inverter output has reached (arrived at) the
target frequency. You can adjust the timing
of the leading and trailing edges of the
signal via two parameters specific to accel-
eration and deceleration ramps, C_42 and
C_43.
The Error for the PID loop is the magni-
tude (absolute value) of the difference
between the Setpoint (desired value) and
Process Variable (actual value). The PID
output deviation signal [OD] (output
terminal function option code 04)
indicates when the error magnitude has
exceeded a magnitude you define.
"C" Function
Func. Name /
Code SRW Display
C_41 Overload level setting
OV Load 03.00A
C_42 Frequency arrival
setting for acceleration
ARV ACC 000.0Hz
Motor current
Overload
frequency
Deviation
Description
Sets the overload signal level
between 0% and 200% (from 0
to two times the rated current
of the inverter)
Sets the frequency arrival
setting threshold for the output
frequency during acceleration
L100 Inverter
C 41
0
signal
1
0
Output
C 42
0
Arrival
signal
1
0
PID Error (PV–SP) deviation threshold
Output
SP
0
signal
1
0
Run
Mode
–FE –FU
Edit
(CE) (UL)
✘
Rated current for each
inverter
✘
0.0 0.0
3–39
t
t
C 43
t
t
PV
C 44
t
t
Defaults
–FR
Units
(Jpn)
—
0.0 Hz