16 Total Counter/Time Counter H7GP/H7HP
■ Precaution for Correct Use
Power Supplies
When turning the power ON and OFF, input signal reception is
possible, unstable, or impossible as shown in the diagram below.
Apply the power supply voltage through a relay or switch in such a
way that the voltage reaches a fixed value immediately.
Self-diagnostic Function
The following displays will appear if an error occurs.
Labels
Unit labels are included with the H7GP/H7HP and DIP switch labels
are included with the H7HP. Attach these labels as shown in the
following illustrations.
Display Error Correction
---- –99999 max.
(H7HP, 6-digit model)
–99999999 max.
(H7HP, 8-digit model)
Press RST Key or reset
input
e1 CPU Press RST Key or turn
power OFF and then ON
e2 Memory
200 ms
5 ms
Input Impossible
Unstable
Possible ImpossibleUnstable
0 to 90 ms 0 to 2 s
ON
OFF
Power
supply
Unit Labels
H7GP
H7HP
DIP Switch Labels
H7HP
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