MEX-F-03131-H/Q [MSYSTEM]

Final Control Elements;


型号：	MEX-F-03131-H/Q
厂家：	M-SYSTEM
描述：	Final Control Elements
文件：	总5页 (文件大小：153K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MODEL: MEX-F

Final Control Elements

[3] POSITION FEEDBACK INPUT

1: Potentiometer

2: Current

VALVE POSITIONER

Functions & Features

• I/I positioner for proportional valve position control in

combination with electric actuator (100 V AC)

• Driving directly AC motor by solid state relay output

• Potentiometer or current feedback selectable

• Timer preventing frequent ON-OFF operation, protecting

motor from overheating

[4] CONTROL OUTPUT

1: SSRs incorporated

2: Constant current driving external SSRs

3: 24 V AC dry contact

RE-TRANSMITTED OUTPUT

1: 4 – 20 mA DC

• Retransmitted output standard

Typical Applications

[5] POWER INPUT

AC Power

• Single phase AC motor

• Loop powered isolator can be used for isolating between

setpoint input signal and transmitter output signal

B: 100 V AC

C: 110 V AC

D: 115 V AC

F: 120 V AC

(1.97)

G: 200 V AC

H: 220 V AC

J: 240 V AC

(3.15)

DC Power

R: 24 V DC

136

(5.35)

mm (inch)

[6] OPTIONS (multiple selections)

Brake Function

blank: Without

MODEL: MEX–F–[1][2][3][4]1–[5][6]

/B: With (incorporated SSRs control output type only)

Signal Indicator

ORDERING INFORMATION

• Code number: MEX–F–[1][2][3][4]1–[5][6]

Specify a code from below for each of [1] through [6].

(e.g. MEX-F-11111-B/B/Q)

blank: Without

/E: Front-mounted LCD meter

(with operation mode selector type only)

Other Options

• Specify the specification for option code /Q

(e.g. /C01/S01/SET)

blank: none

/Q: Option other than the above (specify the specification)

[1] OPERATION MODE SELECTOR

1: With

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

0: Without

/C02: Polyurethane coating

/C03: Rubber coating

[2] POSITION SETPOINT INPUT

1: 4 – 20 mA DC (Input resistance 100 Ω)

2: 1 – 5 V DC (Input resistance 200 kΩ min.)

3: 4 – 12 mA DC (Input resistance 100 Ω)

4: 12 – 20 mA DC (Input resistance 100 Ω)

For switching direct/reverse actions with split ranges, select

"With" for Operation Mode Selector.

TERMINAL SCREW MATERIAL

/S01: Stainless steel

EX-FACTORY SETTING

/SET: Preset according to the Ordering Information Sheet

(No. ESU-4623)

MEX-F SPECIFICATIONS

ES-4623 Rev.7 Page 1/5

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

MODEL: MEX-F

SSR. To avoid the problem, install a resistor (R) in parallel

with the relay coil.

GENERAL SPECIFICATIONS

Construction: Plug-in

R < [Release Voltage] / ([Leakage Current at OFF] –

[Release Current])

Connection: M3.5 screw terminals

Screw terminal: Chromated steel (standard) or stainless

steel

Output Operation: Refer to the figure at the end of this

section.

Housing material: Flame-resistant resin (black)

Deadband adjustment: 2 – 20 % (front)

Timer adjustment: 1 – 30 sec. (front); 5 sec. minimum with

breaking function

■ Constant Current

Rating: 10 V DC, 10 mA ±10 % at ON;

0 mA at OFF

Output Operation: Refer to the figure at the end of this

section.

Isolation: Setpoint input or xmtr output or feedback input to

control output to power (For external SSRs control output,

non-isolated between control output and setpoint input etc.)

Zero adjustment (front)

• 24 V AC Dry Contact

Drive: Photo MOSFET relay

Rating: 27 V AC/DC @ 1 A

Potentiometer feedback: 0 – 25 %

Leakage current at OFF: 1 mA @ 30 V AC

Output Operation: Refer to the figure at the end of this

Current feedback: -10 – +10 %

Span adjustment (front)

section

• Output Operation (terminal No. in parentheses)

Potentiometer feedback: 75 – 100 %

Current feedback: 90 – 110 %

Deadband

Operation mode: Front-accessed DIP switches; failsafe

operation (full-open, full-closed or stop) when there is no

position input signal (approx. -12.5 %); direct/reverse re-

transmitted output; direct/reverse control action

Electronic limit: Front-accessed potentiometers provided for

Operation Mode Selector type

(2-3)ON to min.

–

(1-3)ON to max.

Deviation

(Setpoint) – (Feedback)

INSTALLATION

• Zero limit: Approx. -10 – +5 %

Power input

• Span limit: Approx. 95 – 110 %

•AC: Operational voltage range: rating ±10 %,

50/60 ±2 Hz, approx. 3 VA

Breaking function: Dynamic brake (applicable with 100 to

120 V AC motor only)

•DC: Operational voltage range: 24 V ±10 %, approx. 120

mA (ripple 10 %p-p max.)

LCD meter: Indicating re-transmitted output signal; 0.1 %

increments

Operating temperature: -5 to +60°C (23 to 140°F)

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

Mounting: Surface or DIN rail

INPUT SPECIFICATIONS

■ Setpoint Input

Weight: 300 g (0.66 lb)

Input resistor: Attached to input terminals (0.5 W)

■ POSITION FEEDBACK INPUT

• Current: 4 – 20 mA DC

PERFORMANCE in percentage of span

Position conversion accuracy: ±0.5 %

Input resistance: 20 Ω

Re-transmitted output accuracy: ≤ 3 % excluding offset and

deadband

• Feedback Potentiometer: 100 Ω – 10 kΩ

Minimum span: 50 % of total resistance

Excitation: 0.4 V DC

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 2000 V AC @ 1 minute (setpoint input or

xmtr output or feedback input to control output to power to

ground)

OUTPUT SPECIFICATIONS

■ Re-Transmitted Output: 4 – 20 mA DC

Load resistance: 750 Ω max.

(For external SSRs control output, non-isolated between

control output and setpoint input etc.)

■ Control Output

• SSR: Zero-cross fucntion; 80 – 264 V AC @ 0.1 – 1 A

The built-in SSR cannot drive 200 V AC motor

(direct/reverse).

Leakage current at OFF: Approx. 10 mA @ 240 V

Remark: When driving relays with this control output, relays

may operate erratically due to the leakage current at OFF of

MEX-F SPECIFICATIONS

ES-4623 Rev.7 Page 2/5

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

MODEL: MEX-F

EXTERNAL VIEW

LCD Meter

Timer Adj.

Deadband Adj.

Zero Adj.

Electronic Limit

Zero Adj.

Electronic Limit

Span Adj.

Mode Selector

Span Adj.

Front Cover (open)

EXTERNAL DIMENSIONS unit: mm (inch)

CLAMP

(top & bottom)

7.8 (.31)

DIN RAIL

35mm wide

2–

4.5 (.18) dia.

MTG HOLE

25 (.98) deep

10 11

–M3.5

SCREW

50 (1.97)

107 (4.21)

136 (5.35)

40 (1.57)

50 (1.97)

[3.3 (.13)]

• When mounting, no extra space is needed between units.

TERMINAL ASSIGNMENTS unit: mm (inch)

INPUT RESISTOR

(model: REM)

10 11

Input shunt resistor attached

for current input.

MEX-F SPECIFICATIONS

ES-4623 Rev.7 Page 3/5

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

MODEL: MEX-F

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

***

****

Break

SSR

DEAD-

BAND

ADJ.

No Input

Detector

Input

Dir. / Rev.

Selector

Electronic

Limiter

Compa-

rator

Amplifier

–

Control

Output

Driver

CONTROL

OUTPUT

SETPOINT

RE-TRANSMITTED

OUTPUT

Feedback

Dir. / Rev.

Selector

Output

Driver

Position

Detector

POSITION

FEEDBACK INPUT

Timer

TIMER

U(+)

POWER

V(–)

Base Socket

Input shunt resistor attached for current input.

** Option /E

*** Operation Mode Selector

****Option /B

3-PHASE MOTOR

Control Output Examples

max.

min.

•

Incorporated SSR

24V AC Dry Contact

•

External

SSR Drive

3-PHASE SSR

max.

min.

–

Constant

Curent

MOTOR

SSR or

Photo MOSFET Relay

Position Feedback Input Examples

•

Potentiometer Feedback

•

Current Feedback

max.

Resist/

Voltage

Converter

FEEDBACK

POT

Voltage

Amplifier

FEEDBACK

–

min.

20Ω

MEX-F SPECIFICATIONS

ES-4623 Rev.7 Page 4/5

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

MODEL: MEX-F

SIGNAL CHARACTERISTICS & DIRECT/REVERSE ACTIONS

• POSITION SETPOINT INPUT & CONTROL OUTPUT

MAX

(100%)

SETTING

GRAPH

OPERATION

Reverse

Action

When the position setpont signal increases,

the control output goes towared maximum side.

Direct

Action

When the position setpoint signal increases,

the control output goes toward minimum side.

The positioner is factory set to "Reverse" control action.

Specify "Operation Mode Selector" type (code 1) when ordering, if changing out-

put action to "Direct".

MIN

(0%)

(100%)

4 POSITION

(0%) SETPOINT INPUT

• RE-TRANSMITTED OUTPUT & CONTROL OUTPUT

MAX

(100%)

SETTING

GRAPH

OPERATION

Reverse

Action

When the control output goes toward maximum

side, the re-transmitted signal increases.

Direct

Action

When the control output goes toward maximum

side, the re-transmitted signal decreases.

The positioner is factory set to "Reverse" control action.

Specify "Operation Mode Selector" type (code 1) when ordering, if changing out-

put action to "Direct".

MIN

(0%)

(100%)

(0%)

RE-TRANSMITTED

OUTPUT

EXPLANATIONS OF TERMS

• SSR (Solid State Relay)

Composed only of semiconductor parts, SSR is free from arc discharge or chattering which is typical with electromagnetic

relays. It features excellent characteristics against vibration, physical impact or other environmental conditions.

• Zero-Cross Function

SSR with zero-cross function turns on when AC power voltage is near zero, creating delay of switching when input is provided in

the middle of an wave cycle, thus limiting transient switching noise voltage and rush current.

• Photo MOSFET Relay

A kind of semiconductor relay which has advantages of both solid state relay and mechanical relay, thanks to its low ON-

resistance characteristic. It also features high speed ON/OFF operation and low leak current.

Specifications are subject to change without notice.

MEX-F SPECIFICATIONS

ES-4623 Rev.7 Page 5/5

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

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