Assume Based On Operation Indicator Led - Omron KE1 User Manual

4.2 Assume based on operation indicator
LED
If the power (PWR) lamp of the measurement master, CT expansion slave, or function slave is flashing,
it indicates that an error has occurred.
Operation indicator LED
PWR CONN
Lit Lit
Lit Flashing
Lit Off
Lit Lit
Flashing Off
Lit Lit/Off
/
Lit Lit/Off
/
Lit Lit/Off
/
Assumable cause
ALM COMM
Immediately after
Lit Lit
power ON
(All LEDs lit)
Destruction of
EEPROM data
(All LEDs lit)
Duplicates of slave ID,
or out of range
Duplicates of unit no.
Off Off
Duplicates of the
master
Over the allowable
number of units
connected
Incompatibility in
protocol of DIP
switches
Mismatch between the
connection
configuration and the
ID of the connected
slave
Internal bus
communication not
allowed
Error in the unit
connected
Off Off Normal start-up
(independent)
During measurement
(independent)
Off Off Normal start-up
(multiple units)
During measurement
(multiple units)
EEPROM error
Off Off
RAM error
RTC error
Communication error
Off Lit RS-485/USB
communication in
progress
Lit Off/
Alarm output in
Flashing
progress
/
Flashing Off/
Excess of over current
Flashing
Excess of over voltage
/
Frequency input error
4.2

Assume based on operation indicator LED

Measures
-
Repair is required. Contact the
supplier you purchased the product
from or our sales representative.
Review the ID setting.
Review the unit no.
Review the master/slave.
Check the number of units connected.
Check the settings of CompWay/F and
Modbus and make the settings to
match the protocol.
Make the ID of the connected slave
match the connection configuration.
Recheck the connection.
Check the error of the unit.
-
-
-
-
If the condition is not changed even by
turning the power OFF, repair is
required. Contact the supplier you
purchased the product from or our
sales representative.
If the condition is not changed even by
rechecking communication settings
and wiring, repair is required. Contact
the supplier you purchased the product
from or our sales representative.
-
Since this is caused by functions of
units, check the settings and then refer
to Page 3-18.
Return it to within the range of
standard.
4-3