Omron S8M - Page 75

57
Individual Branch Output Settings Section 4-6
Setting the Current Tripping Type: C-T (Cutoff Type)
This parameter can be set in protection level 0 only.
Standard (usu) When the current exceeds the tripping value for more than 80 ms,
the branch output is cut off and the Tripping Alarm Output (TRP) is
turned OFF. The output will be cut off within 100 ms.
Instantaneous (ins) When the current exceeds the tripping value for more than 10 ms,
the branch output is cut off and the Tripping Alarm Output (TRP) is
turned OFF. The output will be cut off within 20 ms.
c - t
u s u
i n s
(Return to C-T display.)
23
4
°C
kh
V
A
s
1
23
4
°C
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V
A
s
1
23
4
°C
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A
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1
If the S8M is in protection level 0, press the Key from the cur-
rent tripping value (C-V) display to switch to the current tripping
type setting display.
Select the tripping type for branch output 1.
Press the Key to display the setting.
INS: Instantaneous detection trips if the excessive
current lasts over 10 ms. The output can be cut off
within 20 ms.
USU: Standard detection trips if the excessive cur-
rent lasts over 80 ms. The output can be cut off
within 100 ms.
The setting can be changed by pressing the or
Key.
The S8M will automatically return to the C-T dis-
play if no key is pressed within 3 s.
Go to page 58
for the overcur-
rent alarm
value setting.
When the Key is pressed, the SV display will
flash. When the flashing stops, the new setting will
be saved and the S8M will return to C-T display.
If you want to confirm the new setting, press the
Key again from the C-T display.