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
(Disa
b
led)
O
N
(Ena
b
led)
Key protect indicator