Chapter 5 Fault Diagnoses And Processing; Fault Types; Fault Information And Details - Veichi AC100-T3-1R5G Manual

AC100 HIGH-PERFORMANCE VC INVERTER MANUAL
Chapter 5 Fault Diagnoses and Treatment Measures
This chapter explains the display content and measures of the inverter fault, alarm and operation fault. In addition, the
poor condition caused by the inverter and motor failures and the corresponding processing measures will be briefly
described. Tuning Guide on trial use is also referred to in this chapter

5.1 Fault Types

Type
When inverter detects a fault, the following conditions would happen:
●
●
●
Equipment Fault
●
●
External Fault

5.2 Fault Information and Details

Keyboard Fault
Display Code
L.U.1
E.LU2
E.oU1
Inverter Action When Fault Happens
Keyboard display character showing fault content.
Inverter output stops. Motor free slide stops.
When function [F2.29] is 3(output fault), Y terminal outputs valid open-collector digital
output.
When function [F2.30\F2.31] is 3(fault output), TA1-TC1, TA2-TC2 terminals output open
passive digital output.
For faults like OL, OC, SC, OV, UL2, if [FA.22] is not 0, the inverter will restart
automatically after the time interval set by [FA.23].
In certain application occasions, external related equipments fault signals are considered
in the inverter control system as usage of monitoring, protection and switch control. At this
time, if one multi function terminal is defined as "external fault", and when the external
related equipments fault signals are effective, the inverter stops output and give out alarm
signal.
Fault Type
Power supply is too low
●
Too low when
Voltage detection circuit is
●
stop
abnormal
Power supply is too low
●
Power capacitance is too
●
small, or there is
Under voltage
enormous impact current
in run
in the power grid.
Inner DC main contactor is
●
not closed.
Power voltage fluctuation
●
Acc
over limit.
overvoltage
Start motor when running.
●
Possible Causes
56
FAULT DIAGNOSES AND PROCESSING
Treatment Measures
Check input power, eliminate
●
fault.
Seek support from vendor.
●
Check input power, eliminate
●
fault.
Improve power-supply system.
●
Seek support from vendor.
●
Detect power voltage and
●
eliminate fault.
Restart motor until it totally
●
stop; Set F1.00 to 1or 2.