Toshiba Q9+ Installation & Operation Manual page 279

Trips
A Trip is an ASD response to a Fault (though, Fault
and Trip are sometimes used interchangeably). A
Trip is a safety feature that disables the ASD system
in the event that a subsystem of the ASD is
malfunctioning or a parameter setting has been
exceeded.
LED LCD
Screen Screen
Note: The event that caused the trip(s) must be corrected or must decrease to less than the
threshold value required to cause the trip to allow for a Reset to be recognized. In the event
of multiple active trips, the trip displayed will remain until all faults are corrected and
cleared.
Low Suction/No
AbFL
Flow Cut Off
Emergency Off
E
Analog In OV
E-10
Encoder Loss
E-12
Over-Speed
E-13
Analog In Loss
E-18
Abnormal CPU2
E-19
Stack Err
E-21
Discrete In Volts
E-22
https://www.toshiba.com/tic/
Listed in
at the EOI and the possible causes. When a Trip is
incurred, the system displays the Fault screen. The
Fault screen displays the active Fault.
Note:
Table 18. Fault Codes
Fault Description
Running ASD producing no
flow.
Emergency Off command
received via keypad or
remotely. Output signal from
the ASD is terminated.
Analog input terminal over-
voltage.
Encoder loss.
Speed error (over-speed).
Analog input loss.
Abnormal CPU2
communication.
Stack overflow error.
Improper input voltage level
at discrete input terminal.
Alarms, Trips, and Troubleshooting
Q9 Plus ASD Install/Op Manual
Table 18 are Faults that may be displayed
See FC90 of the Q9 Plus ASD for the
communications error code number of
.
the active fault
Possible Cause
• Low Suction/No-Flow Trip enabled at F450.
• Loss of suction pressure or closed pump output
valve.
• Activated discrete input terminal set to Low
Suction/No Flow Protection.
• Pump cavitation.
• ASD Upper-Limit Frequency
F484 time setting.
• Stop-Reset was pressed twice at the EOI.
• E-Off command was received remotely.
• Select stopped method at F603.
• Mis-wire at the ASD input terminals.
• Encoder signal is not received.
• Result of a motor speed that is greater than the
commanded speed when using an encoder for
speed control.
• Improper encoder connection or setup
information.
• Defective encoder.
• V/I input terminal configured for operation but the
voltage/current input is either missing or low.
• Over-current at P24.
• Contact TIC Customer Support Center.
• Contact TIC Customer Support Center.
• Discrete input terminal configured for operation
and the input activation voltage level is out of
specification.
run-time is equal to
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