M-system Ab2 User manual

AB2

P. 1 / 3 EM-2635 Rev.3

INSTRUCTION MANUAL

MODEL AB2

ANALOG BACKUP STATION

COMPONENT IDENTIFICATION

■ HOW TO OPEN THE FRONT COVER:

Position your finger on the hook at the top of front cover and

pull.

■FRONT PANEL CONFIGURATIONS

Body Base Socket

Connection

Diagram Label

Front Cover

Specification

Label

The shape of base socket may be different

for some models.

BEFORE USE ....

Thank you for choosing M-System. Before use, check the

contents of package you received as outlined below.

If you have any problems or questions with the product,

please contact M-System's Sales Office or representatives.

■ PACKAGE INCLUDES:

Signal conditioner (body + base socket + input resistor) .....

(1)

The resistor is provided only with current input type.

■ MODEL NO.

Check that model No. described on specification label is

exactly what you ordered.

■ INSTRUCTION MANUAL

This manual describes necessary points of caution when you

use this product, including installation, connection and basic

maintenance procedures.

POINTS OF CAUTION

■ POWER INPUT RATING & OPERATIONAL RANGE

• Check the power rating for the unit on the specification label.

AC rating: Rating ±10%, 50/60 Hz ±2 Hz,

approx. 5VA at 100V

approx. 7VA at 200V

approx. 10VA at 240V

DC rating: Rating ±10%, approx. 3.5W

■ UNPLUGGING THE UNIT

• Before you remove the unit from its base socket or mount it,

turn off the power supply and input signal for safety.

■ ENVIRONMENT

• Indoor use

• When heavy dust or metal particles are present in the air,

install the unit inside proper housing with sufficient ventila-

tion.

• Do not install the unit where it is subjected to continuous

vibration. Do not subject the unit to physical impact.

• Environmental temperature must be within -5 to +55°C (23

to 131°F) with relative humidity within 30 to 90% RH in order

to ensure adequate life span and operation.

■ WIRING

• Do not install cables (power supply, input and output) close

to noise sources (relay drive cable, high frequency line, etc.).

• Do not bind these cables together with those in which noises

are present. Do not install them in the same duct.

• Use of shielded cables for the control signals (UP, DOWN

and STOP) is recommended.

■ AND ....

• The unit is designed to function as soon as power is

supplied, however, a warm up for 10 minutes is required for

satisfying complete performance described in the data sheet.

Input Resistor

Span Adj.

Zero Adj.

Ramp Rate

(response) Adj.

AB2

P. 2 / 3 EM-2635 Rev.3

■TERMINAL ASSIGNMENTS mm (inch)

1110

12 (.47)

INPUT RESISTOR

(model: REM)

Input shunt resistor attached

for current input.

■ DIMENSIONS mm (inch)

5678

1110

80 (3.15)

50 (1.97) 107 (4.21)

136 (5.35) [3.3 (.13)]

80 (3.15)

(.79)

35.4 (1.39)

40 (1.57)

50 (1.97)

7.8 (.31)

CLAMP

(top & bottom)

DIN RAIL

35mm wide

2–4.5 (.18) dia.

MTG HOLE

25 (.98) deep

11–M3.5

SCREW

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

■CONNECTION DIAGRAM

TERMINAL CONNECTIONS

Connect the unit as in the diagram below or refer to the connection diagram label on top of the unit.

When an input resistor is provided with the module, attach it together with input wiring to the input screw terminals.

Clamp

(top & bottom)

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

Shape and size of the base socket

are slightly different with various

socket types.

INSTALLATION

Detach the yellow clamps located at the top and bottom of the

unit for separating the body from the base socket.

■ DIN RAIL MOUNTING

Set the base socket so that its

DIN rail adaptor is at the bot-

tom. Position the upper hook

at the rear side of base socket

on the DIN rail and push in the

lower. When removing the

socket, push down the DIN rail

adaptor utilizing a screwdriver

(–) and pull.

■ WALL MOUNTING

Refer to the drawings in the

following page.

7U(+)

V(–)

POWER

–

OUTPUT

–

INPUT

*Input shunt resistor attached for current input.

From SOFT-TERMINAL

DOWN

COM.

STOP

From COMPUTER

Track at Short

Hold at Open

AB2

P. 3 / 3 EM-2635 Rev.3

OPERATION

• When the STOP signal from the computer is ON:

The AB2 tracks the computer input.

• When the STOP signal from the computer is OFF:

The AB2 holds the value just before the OFF signal.

The output signal can be increased or decreased manually by

giving UP or DOWN signals ON. If both UP and DOWN

signals are ON, the output remains held.

CHECKING

1) Terminal wiring: Check that all cables are correctly

connected according to the connection diagram.

2) Power input voltage: Check voltage across the terminal 7

–8with a multimeter.

3) Input: Check voltage across the input terminals 5 (+) – 6

(–) with a multimeter.

4) Output at STOP signal OFF: The output does not track

the input signal.

5) Output load: Check that the load resistance meets the

described specifications.

ADJUSTMENT PROCEDURE

This unit is calibrated at the factory to meet the ordered

specifications, therefore you usually do not need any calibra-

tion.

For matching the signal to a receiving instrument or in case

of regular calibration, adjust the output as explained in the

following.

■ HOW TO CALIBRATE THE OUTPUT SIGNAL

Use a signal source and measuring instruments of sufficient

accuracy level. Turn the power supply on and warm up for

more than 10 minutes.

1) ZERO: Apply 0% input and adjust output to 0%.

2) SPAN: Apply 100% input and adjust output to 100%.

3) Check ZERO adjustment again with 0% input.

4) When ZERO value is changed, repeat the above procedure

1) – 3).

The output ramp rate (response time) for UP/DOWN signal

input can be adjusted within approx. 5 to 30 seconds using the

Response Time Adj.

Caution:

DO NOT turn the Response Time Adj. while operating UP/

DOWN buttons.

MAINTENANCE

Regular calibration procedure is explained below:

■ CALIBRATION

Warm up the unit for at least 10 minutes. Apply 0%, 25%,

50%, 75% and 100% input signal. Check that the output

signal for the respective input signal remains within accu-

racy described in the data sheet. When the output is out of

tolerance, recalibrate the unit according to the "ADJUST-

MENT PROCEDURE" explained earlier.

M-SYSTEM WARRANTY

M-System warrants such new M-System product which it manufactures to be free from defects in materials and workmanship during the 36-month period following the date that such

productwasoriginallypurchasedifsuchproducthasbeenusedundernormaloperatingconditionsandproperlymaintained,M-System'ssoleliability,andpurchaser'sexclusiveremedies,

under this warranty are, at M-System's option, the repair, replacement or refund of the purchase price of any M-System product which is defective under the terms of this warranty. To

submit a claim under this warranty, the purchaser must return, at its expense, the defective M-System product to the below address together with a copy of its original sales invoice.