Omron S8M - Page 42

24
Basic Function Details Section 2-4
Current Tripping Characteristics When Standard Detection Is Selected
Current Tripping Characteristics When Instantaneous Detection Is
Selected
Note The S8M contains a current-restricting circuit that prevents a current above a
specific value from flowing. The current is thus restricted during the time
required to cut off the output.
Startup Delay Normally, a large inrush current may run through the system when equipment
starts. Tripping operation can be disabled for a short time after the semicon-
ductor relay goes ON in order to prevent this inrush current from being
detected as an abnormal current and cutting off operation. This temporary
disabling of the tripping function is called the startup delay.
Note The startup delay disables the tripping operation for the specified period of
time. The inrush current during this time can be displayed as the peak output
current. The S8M, however, contains a current-restricting circuit, so the peak
3.8
100
6
20
12
0.5
Time (ms)
Setting
range
Tripping region
Current (A)
Characteristics
when steady
Current-limiting by
internal circuits
(See note.)
3.8
20
12 0.5
Time (ms)
Setting
range
Tripping region
Current
(
A
)
Characteristics
when steady
Current-limiting by
internal circuits
(See note.)
Power supply
voltage
Branch output
voltage
Branch output
current
Tripping Alarm
Output (TRP)
OFF (open)
ON (closed)
OFF (open)
No cutoff during startup delay
even if set value is exceeded.
Tripping current
value
100 ms max. (standard detection)
Startup delay (70 ms)