Omron S8AS User Manual page 17

■ Startup Time
At startup, the S8AS will check hardware and software before starting the operation of branch outputs.
A time of approximately 3 seconds is required for these self-diagnostic functions.
Take this time into account when designing the system.
■ External Tripping Input
Wire the polarity of the external tripping input correctly. After completing wiring, confirm that operation is cor-
rect.
■ Tripping Alarm Output, Undervoltage Detection Output, Maintenance
Forecast Monitor Output, and Over-temperature Output
Photoswitch outputs: 30 VDC max., 50 mA max., residual voltage when ON: 2 V max., leakage current when
OFF: 0.1 mA max.
Wire all output signal circuits correctly. Internal current control circuits are not provided internally for output sig-
nals. Do not allow the output current to exceed 50 mA. After completing wiring, confirm that the circuits operate
correctly.
■ Displaying the Output Voltage
The voltage detection function displays on the 7-segment display the voltage that is monitored at the internal
circuit after AC/DC conversion. The displayed voltage will be somewhat lower than the value at the output
terminals of the power source due to internal voltage drop. To accurately confirm the output voltage, measure
it at the branch output terminal.
■ Prohibition of Parallel Connection
Do not connect branch outputs from the S8AS in parallel. Also, do not connect the branch outputs in parallel
with branch outputs of other S8AS Power Supplies.
S8AS
S8AS
S8AS
■ Supplementary Information: Conformity to IEC and EN Safety Stan-
dards
Warning: The S8AS is a Class A product. In a residential, commercial, or light industrial environment, it may
cause radio interference. The S8AS is not intended to be installed in a residential environment. In a
commercial or light industrial environment with connection to a commercial power supply, the user may be
required to take adequate measures to reduce interference.
Connections cannot be made in parallel
with other branch output circuits.
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