MODEL: MXCB

MXCB SPECIFICATIONS

ES-1745 Rev.8 Page 5/6

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

Isolation

D/A

Converter

Digital

Computation

Base Socket

DATA

ITEM

5

3

4

10

11

UP

9

From SOFT-TERMINAL

DOWN

COM

STOP

From COMPUTER

6

UP

DOWN

COM

Effective only

in MAN mode

1

7 U(+)

V(–)

8

POWER

+

–

OUTPUT

2

FUNCTIONS

COMMAND

TERM.

SIGNAL STATUS

UP

3 – 6

1 0 0 1 – – – –

Computer

DOWN

4 – 6

0 1 0 1 – – – –

STOP

5 – 6

1 1 1 1 0 0 0 0

ST/STL

UP

9 – 11 – – – – 1 0 0 1

DOWN

10 – 11 – – – – 0 1 0 1

Output of the MXCB

1 – 2

↑ ↓ H H ↑ ↓ H H

[Keys] 1 : ON

0 : OFF

– : ON or OFF

H : Hold

↑ : Increase ↓ : Decrease

• MXCB Used Independently

In normal operating mode, the MXCB responds to UP/DOWN signals

from the computer in the preset ramp rate. 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.

• MXCB Used in Combination with ST/STL

In normal operating mode, the MXCB responds to UP/DOWN signals

from the computer in the preset ramp rate. 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 or

DOWN key, 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. This is useful when you need to change the output quickly

during automatic operation by the computer control.

DEFAULT SETTING