Omron H7CZ-L8

H7CZ
16
Key Protect Level
It is possible to prevent setting errors by prohibiting the use of certain operation keys by specifying the key protect level (KP-1 to KP-7) when the
key-protect switch is set to ON.
The key protect level is set in the function setting mode. The key protect indicator is lit when the key-protect switch is ON.
* Changing mode to function setting mode.
Self-diagnostic Function
The following displays will appear if an error occurs.
*1. Display flashes.(1-second cycles)
*2. This occurs if the present value or total count value falls below −99999.
*3. This includes times when the life of the EEPROM has expired.
*4. The normal display and e3 will appear alternately.
When the Reset Key is pressed, e3 will not be displayed even if the alarm set value is exceeded.
(Monitoring is possible, however, because the counter will continue without the output ON count being cleared.)
*5. This is displayed if the alarm value setting for either of the two outputs is exceeded if a model with two outputs is used.The total ON count will not be cleared by
using the Reset Key.
Level Description
Details
Changing modes* Reset Key Up Keys
KP-1
(default setting)
Invalid Valid Valid
KP-2 Invalid Invalid Valid
KP-3 Invalid Valid Invalid
KP-4 Invalid Invalid Invalid
KP-5 Invalid Invalid Invalid
KP-6 Invalid Valid Valid
KP-7 Invalid Invalid Valid
Main display Sub-display Description Output status Correction method Set value after reset
-----
*1
No change Present value underflow
*2
No change
Either press the Reset Key or turn
ON reset input.
No change
fffff
*1
No change Present value overflow No change
Either press the Reset Key or turn
ON reset input.
No change
e1 Not lit CPU error OFF
Either press the Reset Key or
reset the power supply.
No change
e2 Not lit Memory error (RAM) OFF Turn ON the power again. No change
e2 sum Memory error (EEPROM)
*3
OFF Reset Key Factory setting
e3
*4
No change Output Counter Overflow No change Reset Key
*5
No change
* Factory-set to OFF
*
OFF
(Disabled)
ON
(Enabled)
Key protect indicator