Rockwell Automation 700-HX Multifunction Digital Timer - Manual (Page 38)

Publication 700-UM002B-EN-D - June 2010
Precautions 7-3
Self-diagnostic Function The following displays will appear if an error occurs.
Confirm the error type using the display, and take the appropriate
countermeasures.
➊ This includes times when the life of the EEPROM has expired.
➋ The normal display and e3 will appear alternately. When the Reset Key is pressed, e3 will
no longer be displayed even if the alarm set value is exceeded. (Monitoring is possible,
however, because the Timer will continue without clearing the output ON count.)
Changing the Set Values 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.
Operation with a Set Value
of 0 Operation with a set value of 0 will vary with the output mode. Refer to 3-11.
Power Failure Backup All data is stored in the EEPROM when there is power failure. The EEPROM
can be overwritten more than 100,000 times.
Main display Sub- display Error Correction
e1
No
display CPU Either press the reset key or reset
the power supply.
e2
No
display 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.
e2
sum
Memory (EEP)
➊
Reset to the factory settings using
the reset key.
e3 ➋
No Change Output ON count
alarm set value
exceeded Reset key