"
Data Display and Action to be Taken when Inverter Error
Occurs
The first character of an error codeis always “F” when an Inverter error occurs. (Howev-
er, all indicators are not lit when a control circuit error occurs.)
IfanInverter erroroccurs,turn thepoweroff,thenon.If the problempersists,replacethe
Unit.
Data
display
Description Action
Initial memory error
•
Turn the power off, then on.
ROM error
•
If the problem persists, replace the
Unit.
Constant error
•
Write down all the constant settings,
initialize the constants, and reset the
constants.
•
Turn the power off, then on.
•
If the problem persists, replace the
Unit.
Option error
The Digital Operator has an error or
faulty contact.
•
Turn the power off, then reinstall the
Digital Operator.
•
If the problem persists, replace the
Unit.
(Not lit)
Control circuit error
An error occurred in the control power
supply or hardware.
•
Check the power cables.
•
Replace the Unit.
Chapter 5