Hitachi L100 Output Function Adjustment Parameters

3–39

L100 Inverter

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).

Motor current

C 41

0

t

Overload signal 1

0

t

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

Output

frequency

C 42
	C 43
0
	t

signal via two parameters specific to acceleration and deceleration ramps, C_42 and C_43.

Arrival signal

1

0

t

The Error for the PID loop is the magnitude (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.

PID Error (PV–SP) deviation threshold

PV

Output SP

0 C 44

t

Deviation sig-1

0

t

		“C” Function		Run		Defaults
Func.	Name /		Description	Mode	–FE	–FU	–FR	Units
				Edit
Code	SRW Display				(CE)	(UL)	(Jpn)
C_41	Overload level setting		Sets the overload signal level	✘	Rated current for each			—
			between 0% and 200% (from 0			inverter
	OV Load	03.00A
			to two times the rated current
			of the inverter)
C_42	Frequency arrival		Sets the frequency arrival	✘	0.0	0.0	0.0	Hz
	setting for acceleration		setting threshold for the output
			frequency during acceleration
	ARV ACC	000.0Hz