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Alarms, Trips, and
Troubleshooting
This section lists the available User Notification
codes of the EOI display and provides information
that assists the user in the event that an Alarm or a
Fault is incurred. The User Notification codes are
displayed as an indication that a system function or
system condition is active (i.e., Atn). The code is
displayed on the EOI for the duration of the
activation.
If a user setting or a Q9 Plus ASD parameter has
been exceeded, or if a data transfer function
produces an unexpected result, a condition that is
referred to as a Fault is incurred.
An Alarm is an indication that a Fault is imminent if
existing operating conditions continue unchanged.
An Alarm may be associated with an output
terminal to notify the operator of the condition
remotely, close a contact, or engage a brake. At the
least, an Alarm will cause an alarm code to appear
on the EOI display.
Table 17 on pg. 264
Alarm codes that may be displayed during
operation of the Q9 Plus ASD.
In the event that the condition that caused the
Alarm does not return to its normal operating level
within a specified time, the ASD Faults and a Trip is
incurred (Fault and Trip are sometimes used
interchangeably).
A Trip is a safety feature (the result of a Fault) that
disables the Q9 Plus ASD system and removes the
3-phase power from the motor in the event that a
subsystem of the ASD is malfunctioning, or if one or
more of the variables listed below exceeds its
normal range in time and/or magnitude:
• Current,
• Voltage,
LED
Screen
Autotune Active
Atn
Virtual Linear Pump
LOFr
Low Frequency
No Error
nErr
Virtual Linear Pump On
Pump
https://www.toshiba.com/tic/
lists the
Table 16. User Notification Codes.
LCD
Screen
Autotune function is active.
Virtual Linear Pump function is operating at the Low-Frequency
Limit setting.
No active errors.
Virtual Linear Pump function is enabled and active.
Alarms, Trips, and Troubleshooting
Q9 Plus ASD Install/Op Manual
• Speed,
• Temperature,
• Torque, or
• Load.
See
Table 18 on pg. 267
for a listing of the potential
Faults/Trips and the associated probable causes.
The operating conditions at the time of the trip may
be used to help determine the cause of the trip.
Listed below are operating conditions that may be
used to assist the operator in correcting the
problem or that the ASD operator should be
prepared to discuss when contacting the TIC
Customer Support Center for assistance.
• What trip information is displayed?
• Is this a new installation?
• Has the system ever worked properly and what
are the recent modifications (if any)?
• What is the ASD/Motor size?
• What is the CPU version and revision level?
• What is the EOI version?
• Does the ASD trip when accelerating, running,
decelerating, or when not running?
• Does the ASD reach the commanded frequency?
• Does the ASD trip without the motor attached?
• Does ASD trip with an unloaded motor?
User Notification Codes
The User Notification codes are displayed as an
indication that a system function or system
condition is active. The code is displayed on the
EOI for the duration of the activation.
Description
263
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