Toshiba ACE-tronics G9 ASD Installation And Operation Manual page 265

LCD Screen LED Screen
UP2
Control Power
Under-Voltage
E-26
CPU2 Fault
E-19
CPU
Communication
Error
ERR4
CPU Fault
E-21
CPU Processing
Error
OCR
Dynamic Braking
Resistor
Over-Current
OLR
Dynamic Braking
Resistor Overload
EEP1
EEPROM Fault
EEP2/EEP3
EEPROM Read
Error
E
Emergency Off
E-12
Encoder Signal-
Loss Error
EFLT
External Fault
ACE-tronics G9 ASD Installation and Operation Manual
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Possible Causes
• This fault is caused by an under-voltage condition at the 5, 15, or the 24
VDC supply.
• 3-phase input voltage low.
• CPU malfunction.
• Control board malfunction.
• CPU data Transmit/Receive error.
• CPU malfunction.
• Control board malfunction.
• Software processed incorrectly.
• Make service call.
• ASD inability to discharge the bus voltage during regeneration.
• No Dynamic Braking Resistor (DBR) installed.
• DBR value is too low.
• Deceleration time is too short.
• Improper DBR setup information.
• Defective IGBT7 (or IGBT7 ckt.).
• 3-phase input voltage is above specification.
• Deceleration time is too short.
• Improper DBR setup information.
• Improper Stall setup information.
• EEPROM write malfunction.
• EEPROM read malfunction.
• Output signal from the ASD is terminated and a brake may be applied if
so configured.
• Stop-Reset pressed twice at the EOI.
• EOFF command received remotely.
• ASD reset required.
• ASD is configured to receive a signal from a shaft-mounted encoder and
no signal is being received while running.
• Disconnection at the Encoder circuit.
• Motor is stopped and is generating torque via torque limit control.
• ASD is not configured properly.
• In a multiple-ASD configuration, this is the fault screen display of an
ASD that is not the cause of the fault, but is unable to continue with
normal operations.
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