Omron VARISPEED L7 User Manual

7-6
7
CF
Out of Control
Control Fault
A torque limit was reached continu-
ously for 3 seconds or longer during a
deceleration stop in Open Loop Vector
control.
Motor parameters were not set prop-
erly.
Check the motor parameters.
EF0
Opt External Flt
External fault input from Communica-
tions Option Card
An external fault condition was present,
input from a communication option
card.
Check for an external fault condi-
tion.
Verify the parameters.
Verify communication signals
EF3
Ext Fault S3
External fault at terminal S3
An “external fault” was input from a
multi-function input terminal (S3 to
S7).
Eliminate the cause of the external
fault condition.
EF4
Ext Fault S4
External fault at terminal S4
EF5
Ext Fault S5
External fault at terminal S5
EF6
Ext Fault S6
External fault at terminal S6
EF 7
Ext Fault S7
External fault at terminal S7
CE
Memobus Com Err
MEMOBUS Communication Error
Detected when control data was not
received correctly for two seconds, H5-
04 is set to 0,1 or 2 and H5-05 is set to
1.
Connection is broken and/or the master
has stopped the communication.
Check the connections and all PLC-
side software configurations.
BUS
Option Com Err
Option Communication Error
After initial communication has been
established, the connection got lost.
Connection is broken and/or the master
has stopped the communication.
Check the connections and all PLC-
side software configurations.
SE1
Sequence Error 1
Detected no output contactor answer
back for S1-16 time setting.
The output contactor or auxiliary
switch has a malfunction.
Check the output contactor.
SE2
Sequence Error 2
The output current at start was below
25% of no-load current.
The output contactor was not closed at
start.
Check the output contactor.
SE3
Sequence Error 3
The output current during run was
below 25% of no-load current.
The output contactor was opened dur-
ing run.
Check the output contactor.
Ref Missing
FRL
No speed was selected before the
inverter start.
A start signal was given and no speed
was selected when d1-18 = 1 and
H1-K83.
Check the speed selection/start
sequence.
Table 7.2 Not Resetable Faults
CPF00
COM-ERR(OP&INV)
Digital Operator/LED Monitor Com-
munication Fault 1
Communication with the digital opera-
tor could not be established within 5
seconds after the power was supplied to
the Inverter.
Digital operator cable was not securely
connected or digital operator is defec-
tive and/or control board is defective
Disconnect the Digital Operator/
LED Monitor and then connect it
again.
Replace the Inverter.
CPU External RAM Fault The control board is damaged.
Cycle the Inverter power supply.
Replace the Inverter.
CPF01
COM-ERR(OP&INV)
Digital Operator/LED Monitor Com-
munication Fault 2
After communications with the digital
operator was established, the communi-
cation stopped for 2 seconds or more.
Digital operator cable is not properly
connected or the digital operator is
defective
Disconnect the Digital Operator/
LED Monitor and then connect it
again.
The control board is damaged.
Cycle the Inverter power supply.
Replace the Inverter.
Table 7.1 Resetable Faults
Display Meaning Probable Causes Corrective Actions

Omron VARISPEED L7 Specifications

General

Brand	Omron
Model	VARISPEED L7
Category	Inverter
Language	English