Omron Varispeed E7 User Manual

Protective and Diagnostic Functions
7-9
(flashing)
Overload Detection
The Inverter’s output current
exceeded L6-02 for longer than
the time set in L6-03 and
L6-01 = 1 or 2.
Motor was overloaded
• Ensure that the values in
L6-02 and L6-03 are appro-
priate
• Check the application/
machine status to eliminate
the fault.
OL3
Overtorque Det.1
(flashing)
(flashing)
Loss of Load Detection
Inverter’s output current was
below L6-02 for longer then the
time set in L6-03 and L6-01=5 or
6.
Motor lost its load
• Make sure that the settings
in L6-02 and L6-03 appro-
priate
• Check the application/
machine status to eliminate
the alarm.
LL3
Loss of Load Det
(flashing)
External Fault Input from Com-
munication Option Card (Alarm
only)
(F6-03=3)
An external fault condition was
present, input from a communica-
tion option card while F6-03 is
set to Alarm only.
• Check for an external fault
condition.
• Verify the parameter set-
tings.
• Verify communication sig-
nals.
EF0
Opt External Flt
(flashing)
(flashing)
External fault at terminal S3
(Alarm only)
An external fault was input from
a multi-function digital input
(H1-01 to H1-05) that is pro-
grammed for external fault func-
tion that gives an alarm only and
continues to run the motor.
Remove the cause of the
external fault.
EF3
Ext Fault S3
(flashing)
(flashing)
External fault at terminal S4
(Alarm only)
EF4
Ext Fault S4
(flashing)
(flashing)
External fault at terminal S5
(Alarm only)
EF5
Ext Fault S5
(flashing)
(flashing)
External fault at terminal S6
(Alarm only)
EF6
Ext Fault S6
(flashing)
(flashing)
External fault at terminal S7
(Alarm only)
EF7
Ext Fault S7
(flashing)
(flashing)
PI Feedback Lost
This alarm occurs when PI feed-
back loss detection is pro-
grammed to alarm (b5-12=1) and
the PI feedback fell below the PI
Feedback Loss Detection Level
(b5-13) for the PI Feedback Loss
Detection (b5-14).
PI feedback source (e.g. trans-
ducer, sensor, building automa-
tion signal) is not installed
correctly or is not working.
• Check the PI feedback sig-
nal source for correct opera-
tion.
• Check the wiring of the PI
feedback signal.
FBL
Feedback Loss
Table 7.2 Alarm Content
Display Meaning Probable Causes Corrective Actions

Omron Varispeed E7 Specifications

General

Brand	Omron
Model	Varispeed E7
Category	Inverter
Language	English