18AS2-43-R [MSYSTEM]

Rack-mounted DCS Signal Conditioners 18-RACK;


型号：	18AS2-43-R
厂家：	M-SYSTEM
描述：	Rack-mounted DCS Signal Conditioners 18-RACK DCS 分布式控制系统
文件：	总4页 (文件大小：125K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MODEL: 18AS2

(connector output not available)

Rack-mounted DCS Signal Conditioners 18-RACK

6: Hi/Lo; N.C., OFF in power failure

(connector output not available)

0: Specify

DC ALARM

Functions & Features

• Providing relay contact closures at preset DC input levels

• Single or dual (Hi/Lo) trip

POWER INPUT

DC Power

• Frontaccessed screwdriver setpoint adjustments

• Enclosed relays

R: 24 V DC

(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)

Typical Applications

• Annunciator

GENERAL SPECIFICATIONS

Construction: Rack-mounted; terminal access via screw

terminals on the front and connector on the rear; terminal

cover provided

• Various alarm applications

Connection

Input: M3.5 screw terminals (torque 0.8 N·m)

Alarm output: M3.5 screw terminals (torque 0.8 N·m) and

connector

Power input: Supplied from connector

Screw terminal: Nickel-plated steel

Isolation: Input to output to power

Relay: Enclosed

MODEL: 18AS2–[1][2]–R

Setpoint adjustments: Multi-turn screwdriver adjustments

(front); -5 – +105 % independently

Hysteresis (deadband): Approx. 1 %

Front LEDs: Red LED turns on when the coil is energized.

ORDERING INFORMATION

• Code number: 18AS2-[1][2]-R

Specify a code from below for each of [1] and [2].

(e.g. 18AS2-62-R)

• Special input range (For code 0)

INPUT SPECIFICATIONS

■ DC Current: Input resistor incorporated

■ DC Voltage: 0 – 300 V DC

Minimum span: 1 V

Use Ordering Information Sheet (No. ESU-1033) to specify

alarm output code 0 specifications.

Offset: Max. 1.5 times span

Input resistance: ≥ 1 MΩ

[1] INPUT

Current

A: 4 – 20 mA DC (Input resistance 250 Ω)

D: 0 – 20 mA DC (Input resistance 50 Ω)

G: 0 – 1 mA DC (Input resistance 1000 Ω)

H: 10 – 50 mA DC (Input resistance 100 Ω)

Voltage

3: 0 – 1 V DC (Input resistance 1 MΩ min.)

4: 0 – 10 V DC (Input resistance 1 MΩ min.)

5: 0 – 5 V DC (Input resistance 1 MΩ min.)

6: 1 – 5 V DC (Input resistance 1 MΩ min.)

0: Specify voltage (See INPUT SPECIFICATIONS)

[2] ALARM OUTPUT

1: Hi (coil energized at alarm)

2: Hi (coil de-energized at alarm)

3: Lo (coil energized at alarm)

4: Lo (coil de-energized at alarm)

5: Hi/Lo; N.O., OFF in power failure

18AS2 SPECIFICATIONS

ES-1769 Rev.3 Page 1/4

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

MODEL: 18AS2

OUTPUT SPECIFICATIONS

Output: Enclosed SPST and SPDT relays

Rating:

30 V DC @ 1 A (resistive load)

0.2 A for the connector output

Maximum switching voltage: 30 V DC

Max. switching power: 30 W (6 W for the connector output)

Minimum load: 5 V DC @ 10m A

Mechanical life: 5 × 10 cycles

• Single Alarm

Front terminals

5 – 6

5 – 7

OFF

Energized

De-energized (or power OFF)

OFF

Rear connector

ALARM

OUTPUT

CODE

POWER ON

POWER OFF

IN < SET

OFF

IN > SET

OFF

• Dual Alarm (front terminals)

POWER ON

ALARM

POWER OFF

5 – 6 7 – 8

IN < SET

IN > SET

OUTPUT

CODE

5 – 6 7 – 8 5 – 6 7 – 8

OFF

OFF OFF

OFF

Shades indicates that the relay is energized.

INSTALLATION

Current consumption: Approx. 80 mA

Operating temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Standard Rack 18BXx or 18KBXx

Weight: 150 g (0.33 lb)

PERFORMANCE in percentage of span

Trip point repeatability: ±0.1 %

Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)

Response time: ≤ 0.5 sec. (0 – 100 % at 90 % setpoint)

Line voltage effect: ±0.1 % over voltage range

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 1500 V AC @ 1 minute

(input to output or power)

500 V AC @ 1 minute (output to power)

1500 V AC @ 1 minute (input or output or power to ground)

18AS2 SPECIFICATIONS

ES-1769 Rev.3 Page 2/4

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

MODEL: 18AS2

EXTERNAL VIEW

■ SINGLE ALARM

■ DUAL ALARM

Indicator

Hi Alarm Indicator

High Setpoint Adj.

Low Setpoint Adj.

Lo Alarm Indicator

Setpoint Adj.

EXTERNAL DIMENSIONS unit: mm (inch)

2–M3

SCREW

8–M3.5

7 (.28)

SCREW

7 (.28)

24 (.94)

32 (1.26)

78 (3.07)

TERMINAL ASSIGNMENTS

18AS2 SPECIFICATIONS

ES-1769 Rev.3 Page 3/4

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

MODEL: 18AS2

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

■ SINGLE ALARM

■ Relay Protection

• AC Powered

SETPOINT ADJ.

Inductive

Load (Coil)

COM

Low Drift

Amplifier

–

Comparator

Varistor or Spark

Quenching Circuit

OUTPUT

INPUT

LOAD

• DC Powered

Inductive

Load (Coil)

HI / LO

Output

Diode, Varistor or

CR Circuit

LOAD

POWER

■ DUAL ALARM

SETPOINT ADJ.

Comparator

Low Drift

Amplifier

LO OUTPUT

HI OUTPUT

–

INPUT

Comparator

SETPOINT ADJ.

POWER

* Input shunt resistor incorporated for current input.

**Relay status is determined by output codes.

Specifications are subject to change without notice.

18AS2 SPECIFICATIONS

ES-1769 Rev.3 Page 4/4

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

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