17

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 Type (

*1)

Abnormal Current Tripping Value

Undervoltage alarm

Maintenance forecast monitor

Over-temperature Output

Startup Sequence (

*1)

Unit No.

Communications Settings (

*1, *5)

Bit Length

Stop Bits

Parity

Send Wait Time

Reset method

*1

Baud Rate

Unit number setting (0 to 31)

Baud rate setting

48: 4,800 bps, 96: 9,600 bps

Bit length setting (7 or 8)

Stop bit setting (1 or 2)

Parity setting

non: None, evn: Even, odd: Odd

Send wait time setting

0 to 999 ms

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.

C-V

C-T

V-U

LFE

TMP

UPS

UNO

BPS

LEN

BIT

PTY

SWT

RST

Branch output selection

Branch output selection

Branch output selection

Branch output selection

Shutdown Sequence (

*1)

DWS

External tripping

Tripping trigger type setting: EGE/LVL

Branch output selection

External tripping (

*1)

Enables (ON) or disables (OFF) the external

tripping input function.

TRG

TGS

Tripping trigger type selection (

*1)

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.

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

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.

The temperature at which an signal is output.

Setting range: 25 to 90°C

An over-temperature signal will be output if the value set

here is exceeded.

Enable/disable the startup sequence and set the time for

each branch output.

Time setting range: 0.0 to 99.9 s (

*3)

Enable/disable the shutdown sequence and set the time

for each branch output.

Time setting range: 0.0 to 99.9 s (

*4)

Detection settings for currents to cut off branch outputs

Standard detection/instantaneous detection (

*2)

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.

Setting Parameters

Parameters are set as shown below.

Example for Setting the Abnormal Current Tripping Value

Use

and

to change the set value.

After flashing

for 3 s

After no key

operations

for 3 s

Set value saved (flashes for 3 s).

When finished, press

to save the set value.

Yrs

A

5

4

3

2

16

V

s

°C

Yrs

A

5

4

3

2

16

V

s

°C

Yrs

A

5

4

3

2

16

V

s

°C

Indicator Status Notation

Lit

Flashing