Download  Print this page

Advertisement

6. TROUBLESHOOTING
Warning
Description
Code
A0706
CB Warning 7 – see
CB manual for details
A0707
CB Warning 8 – see
CB manual for details
A0708
CB Warning 9 – see
CB manual for details
A0709
CB Warning 10 – see
CB manual for details
A0710
CB Communications
Error
A0711
CB Configuration Error
A0910
Vdc-max Controller De-
activated.
A0911
Vdc-max Controller
active
A0920
Analogue input
parameters are not set
correctly.
A0921
Analogue Output
Parameters are not set
correctly.
A0922
No load applied to
inverter.
A0923
JOG right and JOG left
signals active
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
Possible Cause
Communication Board specific
Communication Board specific
Communication Board specific
Communication Board specific
Communication with CB
(communication board) is lost.
CB (communication board) reports
configuration error
Vdc-max controller has been de-
activated.
Ramp-down times are being
extended to prevent overvoltage
trips and to keep the DC link
voltage within acceptable limits
Incorrect parameterization of
analogue input parameters
Output current lower than
expected.
Low output voltage eg when 0
boost applied at 0Hz
JOG right and JOG left signals
active together
International English
Diagnosis & Remedy
See CB User Manual
See CB User Manual
See CB User Manual
See CB User Manual
Check CB Hardware.
Check CB parameters.
Check parameter inverter input
voltage.
1. Check parameter inverter input
voltage.
2. Check ramp-down times.
Analogue input parameters should
not be set to the same value as each
other.
Analogue Output parameters should
not be set to the same value as each
other
1. Check that load is applied to the
inverter.
2. Check motor parameters
correspond to motor attached.
3. As a result, some functions may
not work correctly, because there is
no normal load condition.
Make sure that JOG right and JOG
left signals are not applied
simultaneously
97

Advertisement

Comments to this Manuals

Symbols: 0
Latest comments: