MODEL: M2AS1

M2AS1 SPECIFICATIONS

ES-5064 Rev.12 Page 4/5

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

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

Varistor or CR Circuit

■ Relay Protection

• AC Powered

• DC Powered

Diode, Varistor or

CR Circuit

Inductive

Load (Coil)

LOAD

Inductive

Load (Coil)

U

LOAD

Base Socket

5

Comparator

1

Low Drift

Amplifier

4

Converter

Converter

9

12

8

OUTPUT

*Input shunt resistor attached for current input.

9 9

THUMBWHEEL

SWITCHES

THUMBWHEEL

SWITCHES

9 9

N.C.

N.O.

COM

+

–

*

INPUT

RESET

R

U(+)

V(–)

POWER

13

14

RESET

CONTROL

Ry

FUNCTIONS

■ HIGH ALARM: When the signal input exceeds

the preset setpoint, the relay provides a tripped

condition.

• Hi Alarm

Input

t

Setpoint

Deadband

Bold Line

Thin Line

: Alarm Tripped

: Alarm Untripped

• Lo Alarm

Input

t

Setpoint

Deadband

Bold Line

Thin Line

: Alarm Tripped

: Alarm Untripped

Input

TD

T<TD

TD

t

Setpoint

Bold Line: Coil Energized

• ON Delay Time (TD) with Hi Alarm

• Power ON Delay Time (TDP) with Hi Alarm

Input

TDP

Power ON

t

Setpoint

Bold Line: Coil Energized

Deadband

Input

t

Setpoint

Reset Command

• Latching Output with Hi Alarm

■ LOW ALARM: When the signal input goes below

the preset setpoint, the relay provides a tripped

condition

■ ON DELAY TIME: The relay status does not change

until after the preset ON Delay Time (TD) once the

signal input goes across the threshold.

■ POWER ON DELAY TIME: The relay does not provide

a tripped condition for a duration of the preset Power

ON Delay Time (TDP) after the power supply is turned

on, even when the signal input is in an alarm range.

■ LATCHING OUTPUT: The relay does not return to an

untripped condition once the signal input goes across

the threshold, unless:

(1) the Reset control button is pressed,

(2) the Reset input terminal is closed, or

(3) the power supply is removed.