Hitachi hitachi series inverter user manual LOG1, LOG2, LOG3

Option	Terminal		Function Name			Description
Code	Symbol
21	ZS		Zero Hz Speed	ON	Output frequency falls below the threshold
			Detection Signal		specified in C063
				OFF	Output frequency is higher than the threshold
					specified in C063
22	DSE	Speed Deviation		ON	Deviation of speed command and actual speed
			Excessive		exceeds the specified value P027.
				OFF	Deviation of speed command and actual speed
					does not exceed the specified value P027.
23	POK	Positioning Completion		ON	Positioning is completed
				OFF	Positioning is not completed
24	FA4		Frequency Arrival Type	ON	When output to motor is at or above the set freq.,
			4–Over frequency			C045		) or decel (	C046		) ramps
					even if in accel (
				OFF	When output to motor is OFF, or at a level below
					the set frequency
25	FA5		Frequency Arrival Type	ON	When output to motor is at the set frequency,
			5–Set frequency		during accel (	C045		C046		).
							) and decel (
				OFF	When output to motor is OFF, or is not at a level of
					the set frequency
26	OL2		Overload Advance	ON	When output current is more than the set
			Notice Signal 2		threshold (C111) for the overload signal
				OFF	When output current is less than the set threshold
					for the deviation signal
27	ODc	Analog Voltage Input		ON	When the [O] input value < B070 setting (signal
			Disconnect Detection		loss detected)
				OFF	When no signal loss is detected
28	OIDc	Analog Current input		ON	When the [OI] input value < B071 setting (signal
			Disconnect Detection		loss detected)
				OFF	When no signal loss is detected
31	FBV	PID Second Stage		ON	Transitions to ON when the inverter is in RUN
			Output		Mode and the PID Process Variable (PV) is less
					than the Feedback Low Limit (C053)
				OFF	Transitions to OFF when the PID Process Variable
					(PV) exceeds the PID High Limit (C052), and
					transitions to OFF when the inverter goes from
					Run Mode to Stop Mode
32	NDc		Network Disconnect	ON	When the communications watchdog timer (period
			Detection		specified by C077) has time out
				OFF	When the communications watchdog timer is
					satisfied by regular communications activity
33	LOG1	Logic Output Function 1		ON	When the Boolean operation specified by C143
				OFF	has a logical “1” result
					When the Boolean operation specified by C143
					has a logical “0” result
34	LOG2	Logic Output Function 2		ON	When the Boolean operation specified by C146
				OFF	has a logical “1” result
					When the Boolean operation specified by C146
					has a logical “0” result
35	LOG3	Logic Output Function 3		ON	When the Boolean operation specified by C149
				OFF	has a logical “1” result
					When the Boolean operation specified by C149
					has a logical “0” result
39	WAC		Capacitor Life Warning	ON	Lifetime of internal capacitor has expired.
			Signal	OFF	Lifetime of internal capacitor has not expired.

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