Toshiba Q9 Series, Installation And Operation Manual, Page: 212 / 233

202 Q9 ASD Installation and Operation Manual
Net Card Err Network Option Card Error.
• Optional device malfunction.
• Improper system settings (at ASD or optional
device).
• Loose or improper connection.
OC Detect Error Output Current Detector Error. • Service call required.
Option Over-Heat
Over temperature error at PTC1 or PTC2
(see F637 and F638). • Over temperature condition detected by option
board.
Output Phase Output Phase Failure.
• Mis-wired output phase.
• Loose output phase connection.
Output Short Output Short Circuit at U-V-W Phases.
• ASD is starting into a rotating motor.
• ASD/Motor improperly matched to the application.
• Phase-to-phase short (U/T1, V/T2, or W/T3).
• Acceleration time is too short.
• Voltage Boost setting is too high.
• Motor/machine jammed.
• Mechanical brake engaged while the ASD is
running.
• Short Circuit Detection adjustment required
( F613 ).
• ASD current exceeds 320% or 340% of the rated
FLA on ASDs that are greater than 100 HP or that
are 100 HP or less, respectively, during
acceleration.
Over-Current Acc Over-Current During Acceleration.
• V/f setting needs to be adjusted.
• Restart from a momentary power outage.
• The ASD is starting into a rotating motor.
• ASD/Motor is improperly matched to the
application.
• Phase-to-phase short (U/T1, V/T2, or W/T3).
• Acceleration time is too short.
• Voltage Boost setting is too high.
• Motor/machine jammed.
• Mechanical brake engaged while the ASD is
running.
• ASD current exceeds 320% or 340% of the rated
FLA on ASDs that are greater than 100 HP or that
are 100 HP or less, respectively, during
acceleration.
Table 12. Fault Codes (Continued)
EOI Display Fault Description Possible Cause