Emerson EV1000-2S0004G User Manual page 59

Phenomena Conditions
Press RUN key, the
Drive does not
drive does not run and
run
RUN indicator is off.
The drive stops
automatically without
STOP command. The
RUN indicator goes out.
Unexpected
stops during
running
The drive stops
automatically without
STOP command. The
RUN indicator is still on,
zero-frequency running
Possible reasons of fault
"Coast to stop" terminal effective
"Operation prohibition" terminal effective
"External stop" terminal effective
Preset length arrives
In 3-wire control mode, the control
terminal not closed.
Alarm due to fault
Improper setting of host virtual terminals
Incorrect input terminal logic
Alarm occurs
Single cycle of PLC finishes
Preset length arrives
Interruption of the communication
between the drive and host or flush mount
faceplate
Power failure
Command input method changed
Positive/negative logic of control terminal
changed
Auto reset of fault
Simple PLC pause
Interrupt signal feedback from external
devices
Stop at zero-frequency
Reference frequency is 0
Skip frequency
Positive logic, close loop
feedback>reference frequency
Negative logic, close loop
feedback<reference frequency
Frequency adjustment is set at 0
Restart low voltage compensation
function enabled, and low supply voltage
EV1000 Series General Purpose Variable Speed Drive User Manual
Chapter 6 Troubleshooting
Actions to take
Check "coast to stop" terminal
Check "operation prohibition" terminal
Check "external stop" terminal
Check length setting or delete actual length value
Close the control terminals
Clear the fault
Cancel the virtual terminal function or reconfigure it,
or modidy F7.35
Check F7.35 setting
Find out the reason and reset.
Check PLC configuration
Clear the actual length value or set F9.14 at 0
Check communication cables and FF.02, FF.03,
FL.12 settings
Check the power supply
Check the command input method and
corresponding parameter
Check F7.35.
Check reason of fault and the auto reset function
Check PLC pause function (terminal)
Check the configuration of external interrupt and
faulty external devices
Check F9.12 and F9.13
Check the reference frequency
Check skip frequency
Check the close loop setting and feedback
Check F9.05 and F9.06
Check the configuration of restart and the input
voltage
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