Omron SYSDRIVE 3G3EV SERIES, User Manual

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5-2
5-1 Protective and Diagnostic Functions
The 3G3EV has excellent protective and diagnostic functions. The RUN
and ALARM indicators on the front panel indicate the current Inverter sta-
tus, and the data display section also displays information about an error
that has occurred. These functions therefore enable the user to take the
appropriate actions to correct most errors.
H
List of Error Codes
Inverter
Indicator
Data Description
status
RUN ALARM
display
Normal Flashes Not lit --- Ready to run
Lit Not lit --- Normal operation in progress
Warning Flashes Flashes
ef
Simultaneous input of forward and re-
verse rotation commands
Lit Flashes
uU
Main circuit undervoltage (UV)
%U
Main circuit overvoltage (OV)
%h
Radiation fin overheated (OH)
Digital Operator stopped (STP)
Protective Not lit Lit
%c
Overcurrent (OC)
mecha-
%U
Main circuit overvoltage (OV)
nism actu-
uU1
Main circuit undervoltage (UV1)
ated
uU2
Control power supply fault (UV2)
%h
Radiation fin overheated (OH)
%l1
Motor overload (OL1)
%l2
Inverter overload (OL2)
ef1
External fault (EF1)
Inverter Not lit Lit
f00
Initial memory error
error
f01
ROM error
f04
Constant error
f05
A/D converter error
f06
Option error
Not lit Not lit (Not lit) Control circuit error
Operation
Chapter 5