Toshiba W7 - Manual (Page 159)

W7 ASD Installation and Operation Manual 153
Viewing Trip Information
In the event that the condition causing an Alarm does not return to the normal operating level within a
specified time a Trip is incurred.
When a trip occurs, the resultant error information may be viewed either from the Trip History screen
(Program
⇒ System Information and Setup ⇒ Trip History) or from the Monitor screen.
Trip History
The Trip History screen records the system parameters for up to 24 trips (RTC option required). The
recorded trips are numbered from zero to 23. Once the Trip History record reaches trip number 23, 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 14 as At-trip Recorded Parameters (parameter readings at the time that
the trip occurred).
Table 14. Trip History Record Parameters (RTC option required).
Trip Record at Monitor Screen
The Monitor screen records and displays the trip name of up to four trips and catalogs each trip as Past
Trip #1, Past Trip #2, Past Trip #3, and Past Trip #4. Once reset (Clear Trip), the trip records are
erased. If no trips have occurred since the last reset, No Error is displayed for each trip record.
Note: An improper ASD setup may cause some trips — reset the ASD to the factory default
settings before pursuing a systemic malfunction (Program
⇒ Utilities ⇒ Type Resets
⇒ Restore Factory Defaults).
The at-trip frequency of the last incurred trip may be viewed at the Monitor screen (see pg. 45 ). The
Monitor screen at-trip record is erased when the ASD is reset and may be viewed without the use of the
RTC option. The current output frequency is displayed here when no trip is active.
Clearing a Trip
Once the cause of the trip has been corrected, performing a Reset re-enables the ASD for normal
operation (clears the fault screen).
The fault screen may also be cleared using either of the following methods:
• Cycling power (trip info may be saved via parameter 0602 if desired),
• Pressing the Stop|Reset key twice,
• Remotely via the communications channel,
• Momentarily connecting terminal RES to CC of the Control Terminal Strip, or
• Via Program
⇒ Utilities ⇒ Type Resets ⇒ Clear Psast Trips.
At-trip Recorded Parameters
1) Trip Number 9) Bus Voltage 17) Torque Reference 25) ASD Load
2) Trip Type 10) Discrete Input Status 18) Torque Current 26) DBR Load
3) Time and Date 11) OUT1/OUT2/FL Status 19) Excitation Current 27) Input Power
4) Frequency at Trip 12) Timer 20) PID Value 28) Output Power
5) Output Current 13) Post Compensation Frequency 21) Motor Overload 29) Peak Current
6) Output Voltage 14) Feedback (inst.) 22) ASD Overload 30) Peak Voltage
7) Direction 15) Feedback (1 sec.) 23) DBR Overload 31) PG Speed
8) Frequency Reference 16) Torque 24) Motor Load 32) PG Position