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