Toshiba H7 Operation Manuals page 188

Adjustable speed drive
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EOI
Function
Display
EPH O
Output Line Loss
ERR2
Main RAM Fault
Main ROM Fault
ERR3
CPU Fault
ERR4
Communication
ERR5
Interruption Fault
ERR6
Gate Array Fault
Output Current
ERR7
Detector Error
ERR8
Option Device
Fault
Flash Memory
ERR9
Fault
H7 ASD Operation Manual
Description
This fault occurs when one
or more of the output power
lines from the ASD are
inactive or missing.
This fault is caused by
corrupted RAM data or an
inability to read the RAM
data.
This fault is caused by
corrupted ROM data or an
inability to read the ROM
data.
This fault is caused by a
CPU malfunction.
This fault is caused by an
inability of the ASD to
communicate with an
optional device or another
ASD in a master/follower
configuration.
This fault results when a
given input to the gate array
results in an unexpected
output.
This fault occurs when the
output current of the ASD
exceeds the established
parameters for a given
application or configuration.
This fault is caused by a
malfunction in one of the
ASD option devices.
This fault is caused by
corrupted data in the flash
source or destination
memory location.
Possible Causes
• Output power line from the
ASD is not connected to the
motor.
• A U, V, or W fuse is open
(blown).
• A U, V, or W contactor is
open.
• A U, V, or W HCT is
defective.
• Defective RAM.
• Defective ROM.
• Defective CPU.
• Corrupted data at the master
ASD.
• Broken or improper
connections associated with
the setup.
• Improper setup information
at the follower device.
• Gate array output
discrepancy.
• Defective gate array.
• Defective HCT.
• Defective option device.
• Option device is not
connected securely.
• Option device is not
configured correctly.
• Defective flash memory
(ROM or RAM).
Corrective Action
• Ensure that the motor
leads are connected
properly and securely.
• Measure the individual
running current of the U,
V, and W leads (no
current = problem line).
• Make a service call.
• Make a service call.
• Make a service call.
• Ensure that the master
ASD is programmed
properly.
• Ensure that the
connections are correct
and secured.
• Confirm all
communications settings.
• Make a service call.
• Make a service call.
• Replace the defective
option device.
• Ensure that the
connections are correct
and secured.
• Ensure that the option
device is configured
correctly.
• Make a service call.
181

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