Omron S8M - Page 77

59
Individual Branch Output Settings Section 4-6
Setting the Overcurrent Alarm Type: A-T (Alarm Type)
If the S8M is in protection level 0, press the Key from the overcurrent alarm
value (A-V) display to switch to the overcurrent alarm type setting (A-T) dis-
play.
When necessary, refer to the procedures on pages 56 to 59 and set the
parameters for branch outputs 2 to 4.
If the Down Key ( ) is pressed from the overcurrent alarm type setting dis-
play (A-T) for branch output 4, the display will switch to the undervoltage
alarm value setting display (V-U) described in 4-7 Shared Parameter Settings.
Standard (USU) When the current exceeds the alarm value for more than 80 ms, the
Alarm Output (ALM) is turned OFF within 100 ms.
Instantaneous (INS) When the current exceeds the alarm value for more than 10 ms, the
Alarm Output (ALM) is turned OFF within 20 ms.
i n s
u s u
a - t
(Return to A-T display.)
23
4
°C
kh
V
A
s
1
23
4
°C
kh
V
A
s
1
23
4
°C
kh
V
A
s
1
Select the overcurrent alarm type for branch output 1.
Press the Key to display the setting.
INS: Instantaneous detection operates if the
excessive current lasts over 10 ms.
USU: Standard detection operates if the excessive
current lasts over 80 ms.
The setting can be changed by pressing the
and Key.
The S8M will automatically return to the A-T dis-
play if no key is pressed within 3 s.
Go to page 60
for the branch
output 2 current
tripping 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 A-T dis-
play.
If you want to confirm the new setting, press the
Key again from the A-T display.