84 Chapter 6 Troubleshooting
EV1000 Series General Purpose Variable Speed Drive User Manual
Table 6-1 Operation Related Faults and Counteractions
Phenomena
Conditions
Possible reasons of fault
Actions to take
In stop or operating state, keep pressing
FUNC/DATA key, when pressing
▼
key
three times.
Keypad locked
Power off the drive and then power on again.
Panel’s cables are not well
connected.
Check the wiring
No response
of keys
Part of the keys or all the
keys are disabled
Panel’s keys are damaged
Replay operation panel or seek service
Not power on.
Power on
LED no display
No LED segment
illuminates
Keypad cable reverse
connected
Immediately remove the keypad and connect
it again correctly. If the problem persists,
please connect our technical support person.
Cannot be changed
during operating
Parameter modification
property is
×
Settings of parameters can be changed in
stop status
Set FP.01 to 1 or 2
Set FP.01 to 0
Settings of part of
parameters cannot be
changed.
Parameter’s modification
property is *
The parameters cannot be changed by user.
Input correct user’s password
Parameter
setting cannot
be changed
No parameter but
“0.0.0.0.” is displayed
when pressing
MENU/ESC.
User’s password is required
Seek service
“Coast to stop” terminal
effective
Check “coast to stop” terminal
“Operation prohibition” terminal
effective
Check “operation prohibition” terminal
“External stop” terminal
effective
Check “external stop” terminal
Preset length arrives
Check length setting or delete actual length
value
In 3-wire control mode, the
control terminal not closed.
Close the control terminals
Alarm due to fault
Clear the fault
Improper setting of host virtual
terminals
Cancel the virtual terminal function or
reconfigure it, or modidy F7.35
Drive does not
run
Press RUN key, the drive
does not run and RUN
indicator is off.
Incorrect input terminal logic
Check F7.35 setting
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