Maxcess MAGPOWR LC500G User manual

LC500G Load Cell
Instruction Manual
EN
LC500G
LC500G-S1
MI 850A296 1 E

1-2
INTRODUCTION
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
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 that disclosed.
Copyright 2011, 2019 all rights reserved.
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 that 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 was 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.
Language
These are the original instructions, written in English.

1-1
INTRODUCTION
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
Product overview
The LC-500G load cell is used on machines or in
systems to monitor the tension in a single strand via a
pulley mounted to a shaft that is inserted into the load
cell. The load cell is designed to be mounted through
the vertical face of a machine side frame or vertical
bracket. The load cell is compatible with all MAGPOWR
Tension Readouts and Controls.
Available models
Model No. Force rating for both models is 500 g [1.1 lb]
LC500G
Supplied with a MAGPOWR pulley and shaft
assembly inserted into the load cell.
LC500GS1
Use with customer-supplied pulley and shaft.
Supplying your own pulley and/or shaft
Item
Part No.
1. Use the dimensions for the shaft shown in Figure 1.
2. The pulley must be kept close to the load cell body.
3. The part of the shaft that is inserted into the load cell
also acts as an overload stop for the load cell.
Shaft assembly parts can also be purchased from Maxcess.
Shaft
PN 29L703A2301
Pulley
PN 29L511A13
Snap ring
PN 29L700A2851
Bearing
PN 29L30A391
Figure 1. Pulley shaft dimensions

2-1
SAFETY
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
Safety
The content of these instructions must be read and followed.
All national, state, and local requirements for installation,
accident prevention and environmental protection must be
followed.
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.
The safety instructions and symbols described in this section
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 WARNING refers to the danger of moderate to
severe bodily injuries or death.
The signal word CAUTION refers to the danger of slight to
moderate bodily injuries or material damage.
Symbols used
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.

2-2
SAFETY
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
Basic safety information
Proper use
The load cell devices are intended to be used on machines
or systems to monitor the tension in a strand via a single
strand pulley attached to the load cell.
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 which 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.

3-1
INSTALLATION
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
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.
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 clean flat surface where the wrap angle of the web
does not change.
2. The force direction arrow on the load cell must bisect the
wrap angle of the strand and point in the same or opposite
direction as the resultant force as shown in Figure 2.
3. Secure supplied jam nuts tightly to either side of mounting
surface to ensure that the load cell body cannot rotate.
Tighten to 12 in-lb (1.36 Nm) of torque –maximum.
4. If using customer supplied pulley and shaft, insert shaft
assembly into load cell and tighten the set screw on the
side of load cell to lock shaft in place.
5. Connect the load cell, using shielded cable, to the
MAGPOWR readout or control. (Schematic on page 4-1.)
Figure 2. Load cell force diagram

4-1
MAINTENANCE AND SPECIFICATIONS
www.maxcessintl.com
LC500G Load Cell
MI 850A296 1E
Maintenance
There is no maintenance required for the LC500G.
Specifications
Figure 3. LC500G dimensions –inches [millimeters]
*with pulley ** without pulley
Gage Resistance
350 ohm
Gage Type
Metal foil, full bridge
Excitation Voltage
10 VDC nominal
Output Signal
21 mVDC nominal at full load rating
Operating Temperature
-30 to 95 °C [ -22 to 203 °F]
Temperature effect on zero
0.02% of rating per °C [0.036% of rating per °F]
Combined non-linearity
and hysteresis
0.5% of full scale maximum
Repeatability
0.2% of full scale maximum
Deflection at full load
0.508 mm [0.020 in.]
Climate Class
3K3 (EN60721)
Cable Connector
MAGPOWR mating cable Series SCE, or
mating connector Part #12B193-6

5-1
SERVICE
Service requests and
replacement parts
To request service or to get replacement parts, contact one of
the following addresses:
Fife Corporation
222 West Memorial Rd.
Oklahoma City, OK, 73114,
USA
Phone: [phone]
Fax: [phone]
Web: www.maxcessintl.com
Fife-Tidland GmbH
Max-Planck-Strasse 8 OR
65779 Kelkheim
Deutschland
Telefon: [phone]
Fax: [phone]
Web: www.maxcess.eu
Siemensstrasse 13-15
48683 Ahaus
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AND AFRICA
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[email protected]
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[email protected].cn
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