Omron VARISPEED F7

7-7
7
CE
Memobus Com
Err
MEMOBUS Communication
Fault
Detected when control data was
not received correctly for two sec-
onds and H5-04 = 0 to 2 and
H5-05=1.
Connection is broken and/or the
master has stopped the communi-
cation.
Check the connections and all
user-side software configura-
tions.
BUS
Option Com Err
Option Communication Fault
After initial communication was
established, the connection was
lost.
Connection is broken and/or the
master has stopped the communi-
cation.
Check the connections and all
user-side software configura-
tions.
FAN
Cooling FAN Err
Inverter’s Cooling Fan Fault
An Inverter’s cooling fan fault
was detected and the Inverter
overload protection was activated
based on the internal electric ther-
mal value.
This fault is detected when L8-32
is set to 0.
The Inverter continued running
with an overload after the cooling
fan stopped
Replace the cooling can.
E5
SI-T WDT Err
SI-T Watchdog Error
Consistency error of received
control data.
Synchronization error between
master controller and Inverter for
control data.
Check the communications
timing such as communica-
tions cycle.
Refer to the instruction man-
ual for SI-T option card for
details.
SER
Search Retry Err
Exceeded Allowable Number of
speed search retrials
The speed search has been retried
more than the number of times set
in b3-19 (Number speed search
retreials).
The settings b3-17 and b3-18 are
not appropriate.
Make sure that the settings in
b3-17 and b3-18 are appropri-
ate.
CPF00
COM-
ERR(OP&INV)
Digital Operator Communication
Fault 1
Communication with the digital
operator 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 defective and/or con-
trol board is defective
Disconnect the Digital Opera-
tor and then connect it again.
Replace the Inverter.
CPU External RAM Fault The control board is damaged.
Cycle the inverter power sup-
ply,
Replace the Inverter.
CPF01
COM-
ERR(OP&INV)
Digital Operator Communication
Fault 2
After communications with the
digital operator was established,
the communication stopped for 2
seconds or more.
Digital operator cable was not
securely connected or digital
operator is defective
Disconnect the Digital Opera-
tor and then connect it again.
The control board is damaged.
Cycle the power to the
Inverter.
Replace the Inverter.
CPF02
BB Circuit Err
Baseblock circuit fault
A baseblock circuit fault occurred
at power-up.
Gate array hardware failure at
power-up.
Perform an initialization to
factory defaults.
Cycle the power to the
Inverter.
Replace the Inverter.
CPF03
EEPROM Error
EEPROM fault
Check sum is not valid
Noise or spike was on the control
circuit input terminals or the con-
trol board is damaged.
Perform an initialization to
factory defaults.
Cycle the power to the
Inverter
Replace the Inverter.
Table 7.1 Fault Detection
Display Meaning Probable Causes Corrective Actions