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EOI
Function
Display
E-13
Speed Error
(Over Speed)
Key Error
E-17
E-1 or E2
Panel Overflow
Indicator (LED
display only)
EEPROM Error
EEP1
Initial Read Error
EEP2
EEP3
Initial Read Error
EF1 or
Ground Fault Trip
EF2
EMG
Emergency Off
Input Line Loss
EPH1
180
Description
This fault is the result of a
motor speed that is greater
than the commanded speed
when using an encoder for
speed control.
This fault is caused by an
improper response from the
EOI.
This fault is displayed in the
event that the value shown
is comprised of more digits
than that which can be
displayed on the LED
display.
This fault is caused by an
EEPROM write error.
This fault is caused by an
EEPROM read error.
This fault is caused by
corrupted firmware or an
inability to read the
firmware.
This fault occurs when the
amount of current that
enters the ASD at the R, S,
and T leads is different from
the current leaving on the
return line.
This code is displayed when
the ASD is stopped via the
EOFF command using
either the Stop|Reset key or
is input remotely.
This fault occurs when one
or more of the input power
lines to the ASD are
inactive or missing.
Possible Causes
• Improper encoder
connection or setup
information.
• Defective encoder.
• Defective EOI.
• The displayed number has
more characters than that
which will fit the LED
display.
• An EEPROM write error.
• Defective EEPROM.
• An EEPROM read error.
• Defective EEPROM.
• Defective EEPROM.
• An EEPROM data error.
• Defective EEPROM.
• Ground fault at the motor.
• Ground fault at the output
of the ASD.
• Current leakage to Earth
Ground.
• Stop|Reset key was pressed
twice at the EOI.
• The EOFF command was
received remotely.
• Input power line is not
secured to the input terminal
of the ASD.
• An R, S, or T fuse is open
(blown).
Corrective Action
• Ensure that the encoder
connections are correct
and secured.
• Ensure that the PG
settings are correct for the
application (Program
⇒
Feedback Parameters
⇒
PG Settings).
• Replace the encoder.
• Replace the EOI.
• Reset the ASD and retry.
• Make a service call if the
failure persists.
• Reset the ASD and retry.
• Make a service call if the
failure persists.
• Reset the ASD and retry.
• Make a service call if the
failure persists.
• Ensure that the ground
connections are correct
and secured.
• Ensure that CC is not
connected to Earth
Ground.
• Disconnect the output of
the ASD from the motor
and meggar the motor.
• Reset the ASD.
• Ensure that the input
power lines are connected
securely and of the proper
voltage levels.
• Ensure that the input
power fuses are intact.
H7 ASD Operation Manual
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Table of Contents
Troubleshooting
