S8AS Datasheet, PDF (17/26 Pages) Omron Electronics LLC – Smart Power Supply

S8AS
Setting Mode
Setting Mode is used to set S8AS parameters. Settings can be read or changed while operation continues.
The various parameters can be selected as shown below.
Abnormal Current Tripping Value
C-V
The current at which a branch output is cut off
Setting range: 0.5 to 3.8 A.
The branch output will be cut off if the value set here is
exceeded.
Branch output selection
Abnormal Current Tripping Type (*1)
C-T
Detection settings for currents to cut off branch outputs
Standard detection/instantaneous detection (*2)
Branch output selection
Undervoltage alarm
V-U
The undervoltage alarm will be output if the voltage drops
below this threshold value.
Setting range: 18.0 to 26.4 V
An alarm will be output if the value set here is exceeded.
Maintenance forecast monitor
LFE
The replacement time for the S8AS is calculated from the
operating time and internal temperature. The maintenance
forecast monitor output will operate when the replacement
time falls below the value set here.
Setting range: 0.0 to 5.0 years
Over-temperature Output
The temperature at which an signal is output.
TMP
Setting range: 25 to 90°C
An over-temperature signal will be output if the value set
here is exceeded.
Startup Sequence (*1)
UPS
Enable/disable the startup sequence and set the time for
each branch output.
Time setting range: 0.0 to 99.9 s (*3)
Branch output selection
Communications Settings (*1, *5)
Unit No.
UNO
Unit number setting (0 to 31)
Baud Rate
BPS
Baud rate setting
48: 4,800 bps, 96: 9,600 bps
Bit Length
LEN
Bit length setting (7 or 8)
Stop Bits
BIT
Stop bit setting (1 or 2)
Parity
PTY
Parity setting
non: None, evn: Even, odd: Odd
Send Wait Time
SWT
Send wait time setting
0 to 999 ms
Shutdown Sequence (*1)
DWS
Enable/disable the shutdown sequence and set the time
for each branch output.
Time setting range: 0.0 to 99.9 s (*4)
Branch output selection
External tripping (*1)
TRG
Enables (ON) or disables (OFF) the external
tripping input function.
Branch output selection
Tripping trigger type selection (*1)
TGS
External tripping
Tripping trigger type setting: EGE/LVL
Setting Parameters
Parameters are set as shown below.
Example for Setting the Abnormal Current Tripping Value
Use and to change the set value.
Reset method *1
RST
Reset method setting
KEY: Clear errors using the Reset Key (RST)
ALL: Clear errors using the Reset Key (RST) or
by turning the power OFF and ON again.
Note: 1. Parameters cannot be changed in protection level 2, or
when using the S8AS-24006N or S8AS-48008N.
2. The S8AS will start in Run Mode when power is turned
ON for the first time after shipping from the factory.
3. Refer to the S8AS User's Manual (Cat. No. Z269),
when having further settings.
*1. Not displayed in protection level 1 or 2.
*2. The S8AS-24006N and S8AS-48008N use Extended
Detection. (Cannot be changed.)
*3. The S8AS-24006N and S8AS-48008N use a startup
sequence using an offset of 0.4 s starting with the first
branch output. (Cannot be changed.)
*4. The shutdown sequence shutdown delay on the S8AS-
24006N and S8AS-48008N is set at 0.0 s. (Cannot be
changed.)
*5. Communications settings will not be displayed on models
that do not have communications functions.
123456
V A Yrs °C s
After no key
operations ^{1 2 3 4 5 6}
for 3 s
V A Yrs °C s
When finished, press
to save the set value.
After flashing
for 3 s
Set value saved (flashes for 3 s).
Indicator Status Notation
Lit
Flashing
1 2 3 4 5 6 V A Yrs °C s
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