Hitachi hitachi series inverter user manual Monitoring Trip Events, History, & Conditions

Monitoring Trip Events, History, & Conditions

Trip History and Inverter Status

We recommend that you first find the cause of the fault before clearing it. When a fault occurs, the inverter stores important performance data at the moment of the fault. To access the data, use

the monitor function (dxxx) and select d081 details about the present fault. The previous 5 faults are stored in d082 to d086. Each error shifts d081-d085to d082-d086, and writes the new error

to d081.

The following Monitor Menu map shows how to access the error codes. When fault(s) exist, you can review their details by first selecting the proper function: D081 is the most recent, and D086 is the oldest.

Trip history 1 (Latest) Trip history 6

d081	. . .
ESC	SET

	E072.
d086

	E 0 7.2		Hz
			A
V		U
	V
			Hz
	6000
			A
	.
	V	U
			Hz
	400
	.		A
	V	U
			Hz
	2840
	.		A
	V	U
			Hz
	18
			A
	V	U
			Hz
	15
			A
		U

Error code

Output frequency

Output current

DC bus voltage

Elapsed RUN time

Elapsed power- ON time

Trip cause	Inverter status
	at trip point

.0	Power up or initial processing
.1	Stop
.2	Deceleration
.3	Constant speed
.4	Acceleration
.5	0Hz command and RUN
.6	Starting
.7	DC braking
.8	Overload restriction

Note: Indicated inverter status could be different from actual inverter behavior.

e.g. When PID operation or frequency given by analog signal, although it seems constant speed, acceleration and deceleration could be repeated in very short cycle.

84