Output Indicator; Self-Diagnostic Function - Omron H8BM Series Manual

H8BM
7. Count Value Display
While the count input is ON, the period on the count value display
flashes. The timer operation measures time by totaling the ON time
of the count input.

8. Output Indicator

The status of the pre-forecast, forecast, and machine stoppage out-
puts is displayed as follows:
1. Pre-forecast: The number of the Counter whose count value
has reached the pre-forecast value is displayed on the LCD.
The pre-forecast is only displayed on LCD as a message and
no actual output is issued.
2. Forecast Output: A red indicator lights above the number of
the Counter whose count value is displayed on the LCD.
3. Machine Stoppage Output: The background alternately
lights in red and green, and the number of the Counter whose
machine stoppage output is issued is flashed on the LCD.
Flashing
Note: When any of the pre-forecast, forecast, and machine stop-
page outputs of a Counter has turned ON, the Counter
number of that Counter is automatically displayed. When
an attempt to reset the count value is made at this time, the
count value of only the Counter whose count value is cur-
rently displayed is reset (in RUN mode only).
9. Clearing Settings
The count values of all the Counters can be cleared by
simultaneously holding down the RESET Key and COUNTER
No. Key for 3 seconds.
The same function is effected if the Counter number select input
and reset input are simultaneously applied for 3 seconds.
The count value, pre-forecast value, forecast value, and
machine stoppage value of all the Counters can be cleared by
simultaneously holding down the RESET and SET Keys for 3
seconds.
10. When Used as Totalizing Counter/Timer
Counter
By setting the forecast value of a Counter to 999999 (99999.9 hr),
the Counter can be used as a totalizing counter/timer. The machine
stoppage output of this Counter is not issued. When used as a total-
izing counter, the forecast output of this Counter issues a one-shot
output for 20 ms as a carry signal when the count value changes
from 999999 to 0.

11. Self-diagnostic Function

The following displays will appear if an error occurs.
Display Meaning Output
status
OFF
E1 CPU
Error
E2 Memory
Error
H8BM
Recov- Setting after
ery recovery
Press
Normal counter
RESET
operation is
Key
recovered using
count and set
values from
before the error.
Factory setting
7