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7-4
Precautions
Self-diagnostic Function
Changing the Set Values
Publication 700-UM002A-EN-D - July 2001
It is impossible to provide two independent power switches as shown below
regardless of whether or not the timers are different in phase.
The following displays will appear if an error occurs.
Confirm the error type using the display, and take the appropriate
countermeasures.
Main display Sub- display
No
display
e2
sum
e2
No
e1
display
This includes times when the life of the EEPROM has expired.
When changing the set value during a timing operation, the output will turn
ON if the set value is changed as follows because of the use of a constant
read-in system:
Elapsed time mode: Present value ≥ set value
Remaining time mode: Elapsed time ≥ set value (The present value is set to 0.)
NOTE: When in the remaining time mode, the amount the set value is
changed is added to or subtracted from the present value.
Input
Power Supply
Terminal
Input
Terminal
Error
Correction
Memory (RAM)
Reset the power supply. If normal
operation is still not restored,
replacement or repair is necesary. If
normal operation is restored, the
cause may have been noise.
Memory (EEP)
Reset to the factory settings using
the reset key.
CPU
Either press the reset key or reset
the power supply.
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