Omron RX User Manual page 322

5-1 Protective Functions and Troubleshooting
Name
Appears when the timeout occurs
ModBus
because of disconnection during
communic
Modbus-RTU communication.
ations error
(Trip by the C076 setting)
Option 1 Detects an error on the board
error mounted on option port 1.
Option 2 Detects an error on the board
5
error mounted on option port 2.
Shows the waiting status after the
incoming Inverter voltage decreases
Undervoltage
and shuts off.
standby
This error also appears during
momentary power interruption.
Appears if an error occurs between
Communications
the Digital Operator and the
error
Inverter.
Appears in the restart standby
Retry status when the momentary power
standby interruption/trip retry functions are
enabled.
Power
Appears when the power is shut off.
shutoff
Appears if the limited RUN
RUN
command is received while the
command
rotation direction is limited to one
is limited
direction with b035.
*1. The reset command through the RS terminal or STOP/RESET key is not accepted. Turn off the power.
*2. The reset operation via the Digital Operator is not accepted. Be sure to reset via the RS terminal.
5-5
Display on
Description Digital
Operator
ek4k1.
ek6k0.
ek6k9.
ek7k0.
ek7k9.
-k-k-k-
=k=k=k=
okokoko
-k-k-k-
=k=k=k=
Check point and remedy
Is the communication speed correct?
Is the wiring distance appropriate?
(Connection check)
Has the option board been securely
mounted?
to
(Check that the mounting is correct.)
Has the option board been securely
mounted?
to
(Check that the mounting is correct.)
Has the incoming power supply voltage
dropped? (Power recovery)
Is there a contact failure for MCCB and/or
Mg?
(Replace MCCB, Mg.)
Is the voltage between P/+ and N/-
normal?
(Check the voltage between P/+ and N/-.)
Has the remote cable plug been inserted
properly?
(Check the remote cable inserted
correctly.)
Has the Digital Operator been inserted
properly?
(Check the Digital Operator contact.)
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Reference
page
4-141
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