Toshiba H9 operation manual Viewing Trip Information, Clearing a Trip

Viewing Trip Information

In the event that the condition causing an Alarm does not return to the normal operating level within a specified time, the H9 ASD Faults and a Trip is incurred.

When a trip occurs, the resultant error information may be viewed either from the Trip History screen (Program ⇒ Utilities ⇒ Trip History) or from the Monitor screen.

Trip History

The Trip History screen records the system parameters for up to 20 trips. The recorded trips are numbered from zero to 19. Once the Trip History record reaches trip number 19, the oldest recorded trip will be deleted with each new record stored (first-in first-out). The Trip # field may be selected and scrolled through to view the recorded trip information for a given trip number. The monitored parameters are listed in Table 15 as At-trip Recorded Parameters (parameter readings at the time that the trip occurred).

Table 15. Trip History Record Parameters.

At-trip Recorded Parameters

1)	Trip Number	8) Frequency Reference		15)	Feedback (1 sec.)	22)	ASD Overload
2)	Trip Type	9) Bus Voltage		16)	Torque	23)	DBR Overload
3)	Time and Date	10)	Discrete Input Status	17)	Torque Reference	24)	Motor Load
4)	Frequency at Trip	11) OUT1/OUT2/FL Status		18)	Torque Current	25)	ASD Load
5)	Output Current	12)	Timer	19)	Excitation Current	26)	DBR Load
6)	Output Voltage	13)	Post Compensation Frequency	20)	PID Value	27)	Input Power
7)	Direction	14)	Feedback (inst.)	21)	Motor Overload	28)	Output Power

Trip records are comprised of the full list of monitored parameters (28).

Trip Record at Monitor Screen

The at-trip condition of the last 4 incurred trips may be viewed at the Monitor Screen. The Monitor Screen displays the records of up to four trips and catalogs each trip as Past Trip #1 through Past Trip #4 (see pg. 43). Once reset (Type Reset), the trip records are erased. If no trips have occurred since being powered up or since the last reset, None is displayed for each trip record.

The Monitor Screen at-trip record is erased when the H9 ASD is reset.

Note: An improper H9 ASD setup may cause some trips — reset the ASD to the Factory Default settings before pursuing a systemic malfunction (Program ⇒ Utilities ⇒ Type Reset ⇒ Reset to Factory Settings).

Clearing a Trip

Once the cause of the trip has been corrected, performing a Reset re-enables the H9 ASD for normal operation.

The record of a trip may also be cleared using either of the following methods:

•Cycling power (trip info may be saved via F602 if desired),

•Pressing the StopReset key twice,

•Remotely via the communications channel,

•Momentarily connecting terminal RES to CC of the Terminal Board, or

•Via Program ⇒ Utilities ⇒ Type Reset ⇒ Clear Past Trip (clears Monitor Screen records only).

H9 ASD Installation and Operation Manual 255