Maxcess MAGPOWR GTS Load Cell Bedienungsanleitung

MAGPOWR GTS Load Cell

User Manual

MI 850A347 1 A

MAGPOWR TENSION CONTROL

CONTENTS

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

INTRODUCTION 1-1

About these operating instructions ...................................................................... 1-1

CE marking .......................................................................................................... 1-1

PRODUCT OVERVIEW 2-2

Theory of operation ............................................................................................. 2-2

Model number key ............................................................................................... 2-2

Available models .................................................................................................. 2-3

Selection and sizing ............................................................................................. 2-4

SAFETY INSTRUCTIONS 3-1

Instructions for use .............................................................................................. 3-1

Symbols used ....................................................................................................... 3-2

Proper use............................................................................................................ 3-3

Installation and commissioning............................................................................ 3-3

Maintenance and repair........................................................................................ 3-3

Decommissioning................................................................................................. 3-3

INSTALLATION 4-1

Mechanical and electrical installation ................................................................... 4-1

Top plate adapters ............................................................................................... 4-3

Top plate adapter kits .......................................................................................... 4-3

Adapter kit installation ............................................................................... 4-4

SPECIFICATIONS 5-1

SERVICE AND PARTS 6-1

1-1

INTRODUCTION

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

About these

operating

instructions

All of the information herein is the exclusive proprietary

property of Maxcess International and is disclosed with the

understanding that it will be retained in confidence and will

neither be duplicated nor copied in whole or in part nor be

used for any purpose other than for which disclosed.

Periodically there will be updates to this manual. The latest

version is available on our website or by calling your regional

office listed on the back page of this publication.

These load cell devices must not be installed or used in a

machine or system which does not comply with the machinery

directive 2006/42/EC.

These load cell devices were designed and manufactured to be

installed as Partly Completed Machinery into a machine or

partly completed machine.

The instructions must be read and used by all persons who

have the responsibility of installing and maintaining these load

cell devices.

These instructions must be retained and incorporated in the

technical documentation for the machine or partly completed

machinery into which the load cell device is installed.

CE marking

Only the 2006/42/EC Machinery directive applies to these

devices and they are not marked with the CE sign.

Electromagnetic Compatibility (EMC)

The load cell device is inherently benign in terms of

electromagnetic compatibility and the EMC directive has not

been applied. The electromagnetic compatibility of the load

cell device can only be assessed in connection with the entire

electrical installation including the control. The machine

builder who installs this partly completed machinery into a

machine is responsible for compliance with the EMC directive.

2-2

PRODUCT OVERVIEW

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Product overview

The model GTS load cell is designed to be mounted under

standard inch and metric pillow block bearings. All GTS load

cells are pre-drilled and tapped to accept metric pillow block

bearings.

Top Plate Adapter kits are also available to accommodate

special mounting requirements for the metric series of GTS load

cells. GTS load cells are compatible with all MAGPOWR tension

readouts and controls.

Theory of

operation

The load cell construction consists of a beam with a metal foil

strain gage bonded at the bending point of the beam. The

spring constant of the beam causes the beam to deflect with the

applied force. The beam deflection causes the strain in the

metal below the strain gage to vary linearly with the applied

force. The strain gage converts the induced strain into an

electrical signal which is proportional to the induced strain.

Model number key

Series –Size –Maximum force –Connector type –Units type –

Sxx

Series

GTS –Global Load Cell

Size

Models A, B

Maximum force

Pounds = English

Kilograms = Metric

Connector type

EC12

Units type

Blank = English units

M = Metric units (dimensions and force)

Sxx

Specials: Other variations

2-3

PRODUCT OVERVIEW

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Available models

English series

Force rating

GTSA22-EC12

22 lbs

GTSA55-EC12

55 lbs

GTSA110-EC12

110 lbs

GTSB220-EC12

220 lbs

GTSB550-EC12

550 lbs

GTSB1100-EC12

1100 lbs

GTSB2200-EC12

2200 lbs

Metric series

Force rating

GTSA10-EC12M

10 kg

GTSA25-EC12M

25 kg

GTSA50-EC12M

50 kg

GTSB100-EC12M

100 kg

GTSB250-EC12M

250 kg

GTSB500-EC12M

500 kg

GTSB1000-EC12M

1000 kg

2-4

PRODUCT OVERVIEW

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Selection and

sizing

To properly size any model GTS load cell select the case (which

resembles your application) from the examples shown below.

Using your known maximum tension, roll weight, and angles as

shown, apply the equation to calculate a load rating "L". Select a

load cell with a load rating greater than that calculated.

Example: in Case 2 below

T = 75 kg

A = 180º, B = 30º

w = 20 kg

then

L= ( 2*T * sin(A/2)*(cos B + sin B) )+w/2

L= ( 2(75) *sin 90º *(cos 30º + sin30º) )+ (20/2)

L= ( (150)(1)(0.866 + 0.500) )+10

L= 215 kg

Select a pair of GTSB250-EC12M load cells

NOTES

Angle B cannot exceed 45º.

The second term (roll weight “W"/2) of the

equation must not exceed 50% of the selected

load cell rating. If it does exceed 50%, select

the next larger load cell rating.

When the resultant force (R) is pulling in a

direction away from the load cell, the signal

leads must be reversed at the terminal block of

the control.

Degrees

Sine

Cosine

Degrees

Sine

Cosine

0.0000

1.0000

0.7660

0.6428

0.0872

0.9962

0.8192

0.5736

0.1736

0.9848

0.8660

0.5000

0.2588

0.9659

0.9063

0.4226

0.3420

0.9397

0.3420

0.4226

0.9063

0.9659

0.2588

0.5000

0.8660

0.9849

0.1736

0.5736

0.8192

0.9962

0.0872

0.6428

0.7660

1.0000

0.0000

0.7071

A/2

45° MAX

3-1

SAFETY INSTRUCTIONS

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MAGPOWR GTS Load Cell

MI 850A347 1 A

Instructions for

use

To ensure safe and problem free installation of the load cell

device, the load cell must be properly transported and stored,

professionally installed and placed in operation. Proper

operation and maintenance will ensure a long service life of the

device. Only persons who are acquainted with the installation,

commissioning, operation and maintenance of the system and

who possess the necessary qualifications for their activities

may work on the load cell. Note: The safety information may

not be comprehensive.

Please note the following:

The content of these operating instructions

Any safety instructions on the device

The machine manufacturer’s specifications

All national, state, and local requirements for installation,

accident prevention and environmental protection

Information

about safety

instructions

The safety instructions and symbols described in this section

are used in these operating instructions. They are used to avoid

possible dangers for users and to prevent material damage.

SIGNAL WORD

Source of danger and its results

Avoiding dangers

The signal word DANGER refers to the danger of death or

serious bodily injuries.

The signal word WARNING refers to the danger of moderate to

severe bodily injuries.

The signal word CAUTION refers to the danger of slight to

moderate bodily injuries or material damage.

The signal word NOTICE refers to the possibility of damage to

equipment.

3-2

SAFETY INSTRUCTIONS

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Symbols used

The following safety identification symbols are used in these

operating instructions.

WARNING/CAUTION –General danger or important note

Reference to general hazards that may result in bodily injuries

or damage to device or material.

WARNING/CAUTION –Danger due to crushing

Reference to danger of injury caused by crushing.

WARNING/CAUTION –Danger due to cutting

Reference to danger of injury caused by cutting.

WARNING/CAUTION –Danger due to voltage, electric shock

Reference to danger of injury caused by electric shock due to

voltage.

WARNING/CAUTION –Danger due to hot surfaces

Reference to risk of injury caused by burning.

3-3

SAFETY INSTRUCTIONS

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Basic safety

information

Proper use

The load cell devices are intended to be used on machines or

systems to monitor the tension in a web.

Indoor operation.

Improper use

Operation outside the technical specifications

Operation in an Ex-area or intrinsically safe area without a

proper barrier.

Any other use than the proper use shall be deemed

inappropriate

Installation and commissioning

Any load cell device that is damaged must not be installed or

put into operation.

Only perform installation, maintenance or repair tasks on the

load cell device when the machine has been stopped and is

secured from being turned on.

Only perform installation, maintenance or repair tasks on the

load cell device when there is no electrical power in the system.

The load cell device must be securely mounted before being

placed in operation.

No modifications may be made to the load cell device.

Do not place electrical cables under mechanical strain.

Maintenance and repair

Warning –Danger of injury from crushing

Maintenance and repair tasks on the load cell device must be

performed only when the machine has been stopped and has

been secured from being turned on again.

Decommissioning

The load cell must be disposed of in accordance with all the

applicable national, state and local regulations.

4-1

INSTALLATION

www.maxcessintl.com

MAGPOWR GTS Load Cell

MI 850A347 1 A

Mechanical and

electrical installation

CAUTION –Possible damage to load cell.

Do not hammer on the load cell.

CAUTION –Possible damage to load cell.

Do not disassemble the load cell –there are no

serviceable parts inside the unit.

WARNING –Danger of injury from crushing.

Maintenance and repair tasks on the load cell device

must be performed only when the machine has been

stopped and has been secured from being turned on

again.

1. Select a mounting location where the wrap angle of

the web does not change.

2. GTS load cells are designed to be mounted under

standard, self-aligning pillow block bearings,

which support an idler roll shaft. Two GTS load

cells should be used to measure tension on one

idler roll. Mount the load cells on opposite sides of

the machine, on a clean and flat surface of the

machine frame. The load cells can be mounted in

any orientation.

3. Observe the wrap angle of the web, and insure that

the resultant force due to web tension is in the

“YES” zone as indicated on the label. If not, turn the

load cell around and recheck the direction of the

resultant force.

NOTE: If the resultant force is “upward” (away from

the load cell), reverse the black (-s) and white (+s)

signal leads at the readout or control terminal

block.

Figure 1. Typical Load Cell Usage

Figure 2. Load Cell Wiring

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