Omron S8M - Page 38

20
Specifications Section 2-3
I/O Circuit Configuration
Note When a branch output is cut off with the External Tripping Input, it cuts off
power to the branch output even faster than turning OFF the S8M's power
supply.
Example Operation of the
Alarm Output (ALM)
This example shows the ALM output operation when an undervoltage alarm
occurs.
Name Circuit configuration I/O specifications
Tripping Alarm Out-
put (TRP), Alarm
Output (ALM), and
Over-temperature
Output (TMP)
Output circuit 30 VDC and 50 mA max.
Transistor output
External Tripping
Input (TRG)
Input circuit 19.2 to 30.0 VDC
Minimum signal width: 10 ms
Internal Circuit Configuration of the Alarm
and Over-temperature Outputs
From internal power supply circuit
Signal from CPU
+ pole
− pol
e
+ pole
− pole
Internal Circuit Configuration
of the External Tripping Input
Undervoltage alarm value
Power supply voltage
Branch output current
Branch output voltage
Alarm Output (ALM)
Reset signal
ON
(conducting)
OFF
(not conducting)
ON
(conducting)
3 s min.