Toshiba ACE-tronics G9 ASD Installation And Operation Manual page 266

LCD Screen LED Screen
OH2
External Overheat
ERR9
Flash Memory
Fault
ERR6
Gate Array Fault
EF1/EF2
Ground Fault
EPHI
Input Phase
Failure
E-17
Key Failure
E-22
Logic Input
Voltage Error
ERR7
Low Current
UP1
Main Power
Under-Voltage
OL2
Motor Overload
None
No Errors
E-23
Optional
Expansion Input
Terminal Board 1
Error
E-24
Optional
Expansion Input
Terminal Board 2
Error
ERR8
Option Device
Fault
EPHO
Output Phase
Failure
256
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Possible Causes
• Excessive-heat signature received at the TB3 – TH1(+) and TH1(-)
terminals. See F637 for setup information.
• Flash memory malfunction.
• Main Gate Array is defective.
• Ground fault at the motor.
• Ground fault at the output of the ASD.
• Current leakage to Earth Ground.
• 3-phase input to the ASD is low or missing at the R, S, or T input
terminals.
• Same key input for 20 seconds or more.
• Incorrect voltage applied to the discrete input terminals.
• Improper Low-Current Detection level settings at
• Input 3-phase voltage is too low.
• Momentary power failure longer than the time setting of F628.
• Improper V/f setting.
• Motor is locked.
• Continuous operation at low speed.
• Load requirement exceeds ability of the motor.
• Startup frequency setting adjustment required.
• No active faults.
• Optional Expansion Input Terminal Board 1 is defective.
• Optional Expansion Input Terminal Board 2 is defective.
• Check installation, connections, and option device manual.
• 3-phase output from the ASD is low or missing at the U, V, or W output
terminals or at the input to the motor.
ACE-tronics G9 ASD Installation and Operation Manual
F609 – F612.