Output Function Adjustment Parameters - Hitachi L300P Series Instruction Manual

Output Function
Adjustment
Parameters
"C" Function
Func.
Name
Code
C040 Overload signal output
mode
C041 Overload level setting
C042 Frequency arrival
setting for acceleration
C043 Arrival frequency
setting for deceleration
The following parameters work in
conjunction with the intelligent output
function, when configured. The
overload level parameter (C041) 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 avail-
able on other functions).
The frequency arrival signal, [FA1] to
[FA5], 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 acceleration and deceleration ramps,
C042 and C043.
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.
Description
Choose when the overload
signal is enabled; two option
codes:
00 During accel / decel /
Constant speed
01 During constant speed
only
Range is 0.00 * rated current
to 2.00 * rated current
Sets the frequency arrival
setting threshold for the
output frequency during
acceleration
Sets the frequency arrival
setting threshold for the
output frequency during
deceleration
Motor
current
Overload
signal
1
0
Output
frequency
Arrival
signal
1
0
SP
PID Error
(PV-SP)
Deviation
Signal
1
0
Defaults
Run
Mode
Edit
–FE2 –FU2 –FR
Lo Hi
(EU) (US) (JP)
✘ ✔
01 01 01
✘ ✔
Rated current for
each inverter
✘ ✔
0.00 0.00 0.00
✘ ✔
0.00 0.00 0.00
3–51
L300P Inverter
C041
t
C042
C043
t
C044
t
Units SRW Display
— >CO40 OL
Mode CRT
A >C041 OL
LEVEL 0016.5A
Hz >C042 ARV
ACC 0000.00Hz
Hz
>C043 ARV
DEC 0000.00Hz