MODEL: AB2

AB2 SPECIFICATIONS

ES-2635 Rev.8 Page 5/6

http://www.m-system.co.jp/

OPERATION

• AB2 Used Independently

In normal operating mode, the AB2 responds proportionally to its input (the computer output) in the response time of less than

0.8 seconds.

If the computer fails, this will be detected as a "STOP" command and output will be held at the value prior to the breakdown.

You can increase the output signal by closing across the terminals 9 – 11, and decrease it by closing 10 – 11. The output

responds in the preset ramp rate.

• AB2 Used in Combination with ST/STL

In normal operating mode, the AB2 responds proportionally to its input (the computer output) in the response time of less than

0.8 seconds.

If the computer fails, the "STOP" command will override computer output and put the unit in the manual operation mode by the

ST/STL. Using the top-mounted UP-DOWN buttons, output can be increased or decreased in the preset ramp rate. Output

signal value can be read on the top-mounted indicator. For more precise control, use the monitor terminals.

Also the computer input can be overridden with the AUTO-MANUAL selector on the Soft-Terminal.

Span Adj.

Zero Adj.

Ramp Rate

(response) Adj.

COMMAND

TERM.

SIGNAL STATUS

Computer

ST/STL

Output of the AB2

DC Signal

STOP

UP

DOWN

5 – 6

3 – 4

9 – 11

10 – 11

1 – 2

1 1 0 0 0 0 0 0

– – – – 1 0 0 1

– – – – 0 1 0 1

H

H

H

H

[Keys] 1 : ON

0 : OFF

– : ON or OFF

H : Hold

: Increase

: Decrese