Faults When Devicenet Communications Are Disabled - Omron 3G3MV-PDRT2 User Manual

Communications Errors
Note Check the Digital Operator display (see the following table) to identify faults when DeviceNet
communications are disabled.

Faults when DeviceNet Communications are Disabled

●
Inverter
3G3MV 3G3RV
3G3PV
3G3FV
F04 CPF04
--- ERR
F06 CPF06
F21 CPF21
F22 CPF22
F23 CPF23
Content
EEPROM fault
There was an inconsis-
tency in the stored data or
there is a hardware fault.
EEPROM write fault
Option Unit/Card self-test
error
Option Unit/Card self-test
error
Option Unit/Card model
code error
Option Unit/Card mutual
test error
A communications error
occurred between the
DeviceNet Communica-
tions Unit/Card and
Inverter.
Countermeasure
• Store the parameters again
• Turn the power supply OFF and then ON again.
• Replace the Inverter if the steps above do not elimi-
nate the fault.
Note: This fault may occur if the number of overwrite
operations exceeds 100,000. EEPROM is over-
written when a parameter change operation is
executed from a Parameter Unit or an ENTER
command is sent. Overwrite the data in EEPROM
as little as possible.
• Install the DeviceNet Communications Unit/Card cor-
rectly.
• Align the case with the connector of the DeviceNet
Communications Unit/Card so that it is fully installed.
• Install the DeviceNet Communications Unit/Card cor-
rectly.
• Turn the power supply OFF and then ON again.
• Replace the DeviceNet Communications Unit/Card if
the steps above do not eliminate the fault.
• Install the DeviceNet Communications Unit/Card cor-
rectly.
• Turn the power supply OFF and then ON again.
• Replace the DeviceNet Communications Unit/Card if
the steps above do not eliminate the fault.
• Install the DeviceNet Communications Unit/Card cor-
rectly.
• Align the case with the connector of the DeviceNet
Communications Unit/Card so that it is fully installed.
• Check whether the DeviceNet Communications Unit/
Card's FG wire is properly connected to the Inverter.
• Take steps to reduce noise in the DeviceNet commu-
nications lines. (See 3-3 Communications Line Noise
Prevention for details.)
• Replace the DeviceNet Communications Unit/Card if
the steps above do not eliminate the fault.
Chapter 8
8-9