H9 ASD Installation and Operation Manual 255
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 H ist ory screen
(Program ⇒ Utilities ⇒ Trip H ist ory ) or from the Monitor screen.

Trip History

The Trip Hi stor y screen records the system parameters for up to 20 trips. The recorded trips are
numbered from zero to 19. Once the Trip Hi stor y 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 ti me that the trip
occurred).
Table 15 . Trip History Record Parameters.

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 a s Past Trip #1 through Past Trip #4
(see pg. 43). Once reset (Type R ese t), 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 Stop|Reset 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).

At-trip Recorded Parameters

1) Trip Number 8) Frequency Reference 15) Feedback (1 sec.) 22) ASD Overload
2) Trip Ty pe 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).