Page 1
MAGPOWR DLCA
Digital Load Cell Amplifier
Installation and User Manual
EN
MI 850A348 1 E
MAGPOWR TENSION CONTROL
Page 2
CONTENTS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
INTRODUCTION 1-1
About these operating instructions ...................................................................... 1-1
Product overview .................................................................................................. 1-2
Model number key ............................................................................................... 1-2
SAFETY INSTRUCTIONS 2-1
Instructions for use .............................................................................................. 2-1
Safety symbols ..................................................................................................... 2-1
Basic safety information ....................................................................................... 2-3
INSTALLATION 3-1
Mechanical ........................................................................................................... 3-1
Electrical .............................................................................................................. 3-2
Complete DLCA wiring ..................................................................................... 3-3
Load cell wiring detail ...................................................................................... 3-4
Convert wiring from LCA to DLCA .................................................................... 3-5
DLCA and LCA Pinout ...................................................................................... 3-5
OPERATION 4-1
Power on .............................................................................................................. 4-1
Zero the tension display ....................................................................................... 4-2
Reset parameters ................................................................................................. 4-2
Tension over-range.............................................................................................. 4-2
Password protection ............................................................................................. 4-2
Programming mode ............................................................................................. 4-3
Parameter number ........................................................................................... 4-3
Tension calibration............................................................................................... 4-5
Precision calibration ........................................................................................ 4-5
Weightless calibration ...................................................................................... 4-8
Tension calibration errors .................................................................................. 4-11
Entering maximum tension ................................................................................ 4-12
PARAMETERS 5-1
MAINTENANCE 6-1
TROUBLESHOOTING 7-1
SPECIFICATIONS 8-1
SERVICE 9-1
Filtering................................................................................................................ 5-1
Analog output scaling .......................................................................................... 5-1
Alarm setup and operation ................................................................................... 5-2
Digital input threshold ......................................................................................... 5-3
Calibrate the analog outputs ................................................................................ 5-3
Password .............................................................................................................. 5-4
Miscellaneous ....................................................................................................... 5-5
Fuse replacement ................................................................................................. 6-1
Page 3
CONTENTS
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MAGPOWR DLCA
MI 850A348 1 E
APPENDIX A: DLCA FLOWCHART 10-1
FIGURES
Figure 1. DLCA dimensions. .............................................................................................. 3-1
Figure 2. Complete DLCA wiring. ...................................................................................... 3-3
Figure 3. Load cell wiring detail. ....................................................................................... 3-4
Figure 4. DLCA and LCA pinout ......................................................................................... 3-5
Figure 5. Apply calibration tension.................................................................................... 4-7
Figure 6. Weightless calibration angles ............................................................................. 4-9
Figure 7. Enclosure top removal ........................................................................................ 6-1
TABLES
Table 1. Convert wiring from an LCA to the DLCA ............................................................. 3-5
Table 2. Load cell diagnostic errors .................................................................................. 4-1
Table 3. Load cell calibration errors ................................................................................ 4-11
Page 4
1–1
INTRODUCTION
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MAGPOWR DLCA
MI 850A348 1 E
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.
Copyright 2013, all rights reserved.
Periodically there will be updates to this manual. The latest
version is available at www.maxcessintl.com or by calling
your regional office listed on the back page of this
publication.
These digital load cell amplifiers must not be installed or
used in a machine or system which does not comply with the
machinery directive 2006/42/EC.
These digital load cell amplifiers 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 this
digital load cell amplifier.
These instructions must be retained and incorporated in the
technical documentation for the machine or partly completed
machinery into which the digital load cell amplifier is
installed.
CE marking
This digital load cell amplifier is marked with the CE sign
according to the EMC directive 2004/108/EC.
Conventions used in
this manual
All dimensions and specifications are shown in the format
mm [inches] unless specified otherwise.
Language
These are the original instructions, written in English.
Page 5
1–2
INTRODUCTION
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MAGPOWR DLCA
MI 850A348 1 E
Product overview
The DLCA is a digital load cell amplifier which provides
excitation voltage for load cells and amplifies the returned
millivolt signal which is proportional to applied force into a 0
to 10VDC, 4 to 20 maDC, and a 0 to1maDC signal. The DLCA
also shows the signal converted into a digital readout in
engineering units representing applied force. All calibrations
and setup are entered using three buttons and 4-digit
display. Tension is displayed using three significant digits.
The DLCA has a front panel tension zero button and a digital
input to remotely zero the tension. The DLCA has an alarm
output which can be programmed to activate at either a high
or low tension threshold. Load cell diagnostics run during
power-up.
Model number key
The model number and serial number are shown on the
bottom of the enclosure.
The model number consists of the base model "DLCA"
followed by optional alphanumeric characters.
Model format: DLCA
Serial number format: MMDDYYNNNL
MM = month
DD = day
YY = last two digits of the year
NNN = a sequence number
L = manufacturing location
Page 6
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SAFETY INSTRUCTIONS
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MAGPOWR DLCA
MI 850A348 1 E
Instructions for
use
To ensure safe and problem free installation of the digital load
cell amplifier, the digital load cell amplifier 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 digital load cell amplifier. 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
Safety symbols
Information about
safety symbols
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.
Page 7
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SAFETY INSTRUCTIONS
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MAGPOWR DLCA
MI 850A348 1 E
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.
Page 8
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SAFETY INSTRUCTIONS
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MAGPOWR DLCA
MI 850A348 1 E
Basic safety
information
Proper use
The digital load cell amplifier is intended to be used on machines
or systems to amplify the signal from MAGPOWR or competitor load
cells.
Indoor operation, see environmental specifications.
Improper use
Operation outside the technical specifications
Operation in an Ex-area or intrinsically safe area
Outdoor operation
Any other use than the proper use shall be deemed inappropriate
Installation and commissioning
Any digital load cell amplifier which is damaged must not be
installed or put into operation.
Only perform installation, maintenance or repair tasks on the digital
load cell amplifier when the machine into which the DLCA is
installed has been stopped and is secured from being turned on.
Only perform installation, maintenance or repair tasks on the digital
load cell amplifier when there is no electrical power in the system.
The digital load cell amplifier must be securely mounted before
being placed in operation.
Only replacement parts obtained from Maxcess may be used.
No modifications may be made to the digital load cell amplifier.
Do not place electrical cables under mechanical strain.
WARNING – Death or injury can result from static electric shocks.
Moving webs of material can produce large static voltage
potentials. Protect against electric shocks by installing a conductive
connection between the terminal marked with the PE symbol, pin 5,
and the PE circuit of the building or machine.
WARNING – Death or injury can result from unexpected movement
of the machine into which the DLCA is installed.
Protect against unexpected movement by removing electrical power
from the digital load cell amplifier and the machine into which the
digital load cell amplifier is being installed.
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SAFETY INSTRUCTIONS
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MAGPOWR DLCA
MI 850A348 1 E
Basic safety
information
(Continued)
Operation
None, as tasks from the operator are generally not required.
Maintenance and repair
WARNING – Death or injury can result from unexpected
movement of the machine into which the DLCA is installed.
Protect against unexpected movement by removing electrical
power from the digital load cell amplifier and the machine
into which the digital load cell amplifier is installed.
WARNING – Danger of injury from crushing.
Maintenance and repair tasks on the digital load cell
amplifier must be performed only when the machine into
which the DLCA has been installed has been stopped and
has been secured from being turned on again.
Decommissioning
The digital load cell amplifier must be disposed of in
accordance with all the applicable national, state and local
regulations.
Page 10
3–1
INSTALLATION
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MAGPOWR DLCA
MI 850A348 1 E
Mechanical
installation
WARNING – Death or injury can result from unexpected
movement of the machine into which the DLCA is
installed.
Protect against unexpected movement by removing
electrical power from the digital load cell amplifier and
the machine into which the digital load cell amplifier is
installed.
WARNING – Danger of injury from crushing.
Maintenance and repair tasks on the digital load cell
amplifier must be performed only when the machine into
which the DLCA is installed has been stopped and has
been secured from being turned on again.
1. Install the DLCA on a DIN 35 rail. Figure 1 shows the
DLCA dimensions.
Figure 1. DLCA dimensions.
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INSTALLATION
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MAGPOWR DLCA
MI 850A348 1 E
Electrical
installation
WARNING – Death or injury can result from static electric
shocks.
Moving webs of material can produce large static voltage
potentials. Protect against electric shocks by installing a
conductive connection between the terminal marked with the
PE symbol, pin 5, and the PE circuit of the building or
machine.
CAUTION – Never place electrical cables under mechanical
strain. Always provide mechanical support of wiring with
either clamps or flexible or rigid conduit.
All wiring must comply with the essential requirements of
the appropriate standard(s) and is the responsibility of the
installer.
Wiring to the digital load cell amplifier must be insulated
copper wire with a temperature rating of at least 80⁰C. The
wire size must be at least 0.34 mm2 (22 AWG). Use twisted
pair cable for the power. Use shielded cable for the load cell
and analog output wiring.
1. Connect a 24 VDC +/-10% power supply to pins 3 and 4
of the terminal blocks. Pin 3 should be positive and pin 4
should be negative. See Figure 2.
2. Connect the PE of the building or machine to terminal
block pin 5.
Note: The negative power connection, pin 4, is internally
connected to the PE connection. This connection is only
used for EMC compliance.
3. Connect one or two load cells to terminals 6, 7, 8, and 9.
See Figure 2. If using non-MAGPOWR half-bridge load
cells, see Figure 3 for wiring.
4. Calibrate the load cells by following the procedure
starting on page 4-5 (Precision) or 4-8 (Weightless).
Figure 2 on the next page shows the complete DLCA wiring.
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INSTALLATION
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MAGPOWR DLCA
MI 850A348 1 E
Wiring for the DLCA
Figure 2. Complete DLCA wiring.
Page 13
3–4
INSTALLATION
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MAGPOWR DLCA
MI 850A348 1 E
Wiring for the DLCA
Figure 3. Load cell wiring detail.
Page 14
3–5
INSTALLATION
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MAGPOWR DLCA
MI 850A348 1 E
Convert wiring from
an LCA to the DLCA
Table 1 shows how to convert the wiring from an LCA to the
DLCA.
Function
LCA Terminal
DLCA Terminal
+24V
12
3
Gnd
11
4
PE
10
5
0 to1 mA 9 21
4 to 20 mA
8
18
Gnd 7 17
0 to10V 6 16
Shield
5
10, 19, or 20
P+ 4 9
P- 3 8
S- 2 7
S+ 1 6
Table 1. Convert wiring from an LCA to the DLCA
Figure 4. DLCA and LCA pinout
Page 15
4–1
OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Operation
DLCA control
buttons
There are three manual control buttons on the DLCA.
[+]
=
increment
[-]
=
decrement
[]
=
zero tension, or
enter or save function
Power on
The DLCA will display the software version number when power
is first applied for five seconds and then the DLCA will start
displaying the tension. During the software version display,
diagnostics are performed on the load cells and any errors are
displayed.
The load cell diagnostic errors are shown in Table 2.
To exit from the load cell diagnostic error, press [] and the
tension will be displayed.
If no errors are detected, the tension will be displayed.
Display
Meaning
Er 10
Sensor White (S+) or Black (S-) wire disconnected.
Er 11
Sensor Red (P+) wire disconnected.
Er 12
Sensor Green (P-) wire disconnected.
Er 13
Sensor Failure or other miswiring error. Example: Green and White wire are
swapped, etc.
Table 2. Load cell diagnostic errors
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Zeroing tension
display
While displaying tension, press [] for two seconds to zero the
displayed tension and output.
Connecting the digital input (Zero) to either +5V or +24V for
greater than 500 ms will zero the displayed tension and
output.
This function will work only when the following conditions are
met:
when displaying tension and not if in the parameter menu,
when not in calibration,
if zeroing has not been locked out when a password has
locked the DLCA.
Reset parameters to
defaults
Press and hold [+] and [] while turning power on to the DLCA.
The display will show "dEF" for four seconds while the
parameters are reset to defaults.
This does not reset the calibrate analog outputs parameters
C0.1 through C0.6. These parameters are calibrated at the
factory for the component tolerances on each board. The
password is reset and the DLCA will be unlocked.
Tension over-range
The tension reading display will flash when the displayed
tension exceeds the maximum tension set in either parameter
C1.3 or C2.5.
Password protection
The DLCA allows a password to be set which prevents changes
to the parameters or performing a calibration. When locked, all
parameters can be viewed. Only zeroing tension is allowed
while the password has locked the DLCA, unless zeroing has
been locked out.
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Programming
mode
the pm
Press and hold [+] and [-] for two seconds.
the pm
P[+][-] two
Also: While showing parameter P.24, you may press [] to exit
the menu and return to displaying the tension.
Parameter number
While in the programming mode, the display shows P.xx, where
xx is the parameter number.
Press [+] or [-] to increment or decrement the parameter
number. Press [] to enter the data entry mode for a
parameter. Use [+] or [-] to change the value of a parameter.
Press [] and release to cancel the data change and return to
the menu. Press [] and hold for two seconds (until the display
starts flashing) to save the changed parameter. If the data has
been changed and the data has not been saved, after five
seconds of no button activity the display will flash indicating
the data needs to be saved.
The CAL1 and CAL2 menus are sub-menus which are used to
step the operator through the calibration sequence. Press []
when a CALx menu is showing to get into the sub-menu. The
parameters will now be labeled Cx.y.
Page 18
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Programming
mode
Parameter number
continued
When in the programming mode and no buttons have been
pressed for two minutes, the DLCA exits the programming
mode and returns to displaying tension. This menu time-out is
not active once any of the calibration loops have been entered.
The DLCA allows a password to be set which prevents changes
to the parameters or performing a calibration. When locked, all
parameters can be viewed. Only zeroing tension is allowed
while the password has locked the DLCA, unless zeroing has
been locked out.
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4–5
OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
The DLCA allows either precision calibration or weightless
calibration. The Precision Calibration method is described
below. Weightless Calibration begins on page 4-8.
Calibration can only be performed when the password has not
locked the DLCA. To unlock the DLCA, see the Password
parameter P.00 on page 5-4.
Precision calibration
Use this method when applying a known weight with a rope in
the web path to the load cells for calibration. Typically this
should be 10% of the load cell rating or greater.
Enter the programming mode by pressing and holding [+] and
[-] for two seconds.
Use the [+] and/or [-] buttons to go to parameter P.01. Press
[] to see the present load cell excitaion voltage. Select either
5V or 7.5V. When using MAGPOWR load cells select 7.5V. Press
and hold [] for two seconds (until the display starts flashing)
to store the changes.
Use the [+] and/or [-] buttons to go to "CAL1". Press [] to
enter the CAL1 sub-menu.
Display now shows C1.1. Unload the load cell roller and press
[]. The DLCA will now zero out the idler roll weight and show
a wait display. After zeroing the DLCA will automatically
increment to the next parameter.
continued
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
Precision calibration
continued
Display now shows C1.2. Press [] and select the decimal point
position for tension. Press and hold [] for two seconds (until
the display starts flashing) to store the decimal point position
chosen.
Display now shows C1.3. Press [] and enter the maximum
tension. Press and hold [] for two seconds (until the display
starts flashing) to store the parameter. This value scales the
output. The output will be at 10 volts or 20 mA when the
measured tension matches this value.
Display now shows C1.4. Press [] and enter the calibration
tension that will be applied to the load cell. Press and hold []
for two seconds (until the display starts flashing) to store the
parameter.
continued
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
Precision calibration
continued
Display now shows C1.5. Apply the calibration load to the
load cell using a temporary web or rope and a known weight
entered in C1.4. The temporaray web should follow the
normal web path. When using a rope, the rope should be
centered on the rollers. See Figure 5. Press [] to start
calibration. The display will show a wait screen, and then
display PASS for a successful calibration or an error code to
indicate an issue with the calibration.
1
Temporary web
2
Sensing roll
3
Weight (W)
Figure 5. Apply calibration tension
From either the passing or error screen, press [] to return
to displaying tension.
See the calibration errors in Table 3 on page 4-11.
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
Weightless calibration
Use this method when applying a known weight is not
convenient or desired.
For Precision Calibration method, see page 4-5.
Enter the programming mode by pressing and holding [+] and
[-] for two seconds.
Use the [+] and/or [-] buttons to go to parameter P.01. Press
[] to see the present load cell excitaion voltage. Select either
5V or 7.5V. When using MAGPOWR load cells select 7.5V. Press
and hold [] for two seconds (until the display starts flashing)
to store the changes.
Use the [+] and/or [-] buttons to go to CAL2. Press [] to enter
the CAL2 sub-menu.
Display now shows C2.1. Unload the load cell roller and press
[]. The DLCA will now zero out the idler roll weight and show a
wait display. After zeroing the DLCA will automatically
increment to the next parameter.
Display now shows C2.2. Press [] and select the decimal point
position for tension. Press and hold [] for two seconds (until
the display starts flashing) to store the decimal point position
chosen.
Display now shows C2.3. Press [] and enter the load cell
sensitivity in mV/V units. MAGPOWR load cells have a sensitivity
of 2.1 mV/V. (Consult the manual of competitor's load cells if
using non-MAGPOWR load cells.) Press and hold [] for two
seconds (until the display starts flashing) to store the
parameter.
continued
Page 23
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
Weightless calibration
continued
Display now shows C2.4. Press [] and enter the combined
load cell rating. Press and hold [] for two seconds (until the
display starts flashing) to store the parameter.
Display will now show C2.5. Press [] and enter the maximum
tension. Press and hold [] for two seconds (until the display
starts flashing) to store the parameter.
Figure 6. Weightless calibration angles
X = Web wrap angle
Y = Angle from force direction Arrow
Continued
Page 24
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
Weightless calibration
continued
Display now shows C2.6. Press [] and enter the web wrap
angle in degrees. This is the angle over which the web touches
the idler roller. Press and hold [] for two seconds (until the
display starts flashing) to store the parameter. Refer to Figure
6 for the angles.''
Display now shows C2.7. Press [] and enter the angle from
the force direction arrow or center line in degrees. This is the
angle between the resultant force from the web tension and the
force direction arrow of the load cell or centerline of the load
cell. The maximum value is 45 degrees. Press and hold [] for
two seconds (until the display starts flashing) to store the
parameter. Refer to Figure 6 for the angles.''
Display now shows C2.8. Press [] to start the weightless
calibration. The display will show a wait screen, and then
display PASS for a successful calibration or an error code to
indicate an issue with the calibration.
From either the passing or error screen press [] to return to
displaying tension.
See the calibration errors in Table 3 on page 4-11.
If the displayed tension reads negative when force is applied to
the load cell, change parameter P.20 (Tension Polarity), to -1.
The displayed tension will now read positive when force is
applied.
Page 25
4–11
OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Tension calibration
errors
Display
Error description
PASS
Calibration was successful. No Errors found.
Er 1
Signal read by the amplifier is too large when maximum tension is
applied. This is caused by maximum tension being too large. Reduce
maximum tension.
Er 2
Signal read by the amplifier is too small. Too little of the load cell range is
being used, thus the gain is greater than 32:1. Use more of the load cell
range or set maximum tension higher.
Er 3
Roller weight too large. Roller weight exceeds 90% of the load cell rating.
Make roller weight smaller.
Er 4
Calibration tension is greater than Maximum tension. Make Maximum
tension larger than Calibration tension.
Er 5
Maximum tension exceeds the load cell rating. Lower wrap angle, make
roll weight smaller or get higher rated load cells.
Table 3. Load cell calibration errors
Page 26
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Entering maximum
tension
Examples
The following are examples of displaying tension that results
from the value entered for maximum tension and the selection
of the decimal point position. The DLCA displays tension with
three significant digits.
Example 1
Using two GTSD-15000M load cells:
The rated load is 30000 kg.
The application’s maximum tension is 15000 kg.
Enter decimal point position as 000.0.
Enter Maximum tension as 15.0.
The DLCA now displays tension with units of 1000 kg.
The display will increment in 100 kg steps.
Same application but desired units are Newtons:
The load cell’s rated load is 294 kN.
The application’s maximum tension is 147 kN.
Enter decimal point position as 0000.
Enter Maximum tension as 147.
The DLCA now displays tension with units of 1 kN.
The display will increment in 1 kN steps.
Same application but desired units are Pounds:
The load cell’s rated load is 66.1 kPounds.
The application’s maximum tension is 33.0 kPounds.
Enter decimal point position as 000.0.
Enter maximum tension as 33.0.
The DLCA will now display tension with units of
1 kPound.
The display will increment in 0.1 kPound steps.
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OPERATION
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MAGPOWR DLCA
MI 850A348 1 E
Entering maximum tension
continued
Example 2
Using two GTSB-2200 load cells:
The rated load is 4400 lbs.
The application’s maximum tension is 2000 lbs.
Enter decimal point position as 00.00.
Enter Maximum tension as 2.00.
The DLCA now displays tension with units of 1000 lbs.
The display will increment in 10 lb steps.
Alternatively:
Enter decimal point position as 0000.
Enter maximum tension as 2000.
The DLCA will now display tension with units of 1 lbs.
The display will increment in 10 lb steps.
Note that the right-most zero is fixed and does not
change.
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PARAMETERS
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MAGPOWR DLCA
MI 850A348 1 E
Filtering
The tension display and all 3 analog outputs have a separate low pass filter. The filter response
can be set from 100 Hz to 0.01 Hz.
Parameter #
Description
Units
Default
Range
P.02
Tension display filter frequency
Hertz
3
{00.01, 99.99}
P.03
0 to 10V output filter frequency
Hertz
40
{00.01, 99.99}
P.04
4 to 20mA output filter frequency
Hertz
40
{00.01, 99.99}
P.05
0 to1mA output filter frequency
Hertz
40
{00.01, 99.99}
Analog output scaling
Each analog output’s output values for zero tension and maximum tension can be set by the
following parameters.
Parameter #
Description
Units
Default
Range
P.06
Sets the 0 to 10V output voltage
when the tension is 0.
volts
0
{00.00, 10.00}
P.07
Sets the 0 to 10V output voltage
when the tension is equal to
maximum tension
volts
10
{00.00, 10.00}
P.08
Sets the 4 to 20mA output current
when the tension is 0.
Allows changing to a 0 to 20 mA
output
milliamps
4
{00.00, 20.00}
P.09
Sets the 4 to 20mA output current
when the tension is equal to
maximum tension
milliamps
20
{00.00, 20.00}
P.10*
Sets the 0 to 1mA output current
when the tension is 0
volts
0
{00.00, 10.00}
P.11*
Sets the 0 to 1mA output current
when the tension is equal to
maximum tension
volts
10
{00.00, 10.00}
*
The voltage value entered in P.10 and P.11 represents the current value in milliamps when
divided by 10.
Parameters
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PARAMETERS
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MAGPOWR DLCA
MI 850A348 1 E
Alarm setup and operation
The following parameters describe the setup and operation of the alarm output.
Parameter #
Description
Default
Range
P.13
Sets the alarm activation type.
0
{0, 3}
0 =
Alarm ON when tension is above the alarm
high compare value
1 =
Alarm ON when tension is below the alarm
low compare value.
2 =
Alarm ON when tension is either above the
alarm high compare value or below the
alarm low compare value.
3 =
Alarm ON when tension is below the alarm
high compare value and above the alarm low
compare value.
P.14
Alarm high compare value
500
{0, 9990}
P.15
Alarm low compare value
0
{0, 9990}
P.16
Alarm hysteresis percent
[Hysteresis percent is a percentage of maximum
tension (value in C1.3 or C2.5).]
0
[000.0, 100.0}
P.17
Alarm ON delay time [The alarm ON output is
delayed by this number of seconds.]
0
{00.00, 99.99}
P.18
Alarm OFF delay time [The alarm OFF output is
delayed by this number of seconds.]
0
[00.00, 99.99}
Alarm operation with hysteresis
Alarm activation type 0:
Alarm turns on when tension is greater than High value.
Alarm turns off when tension is less than (HighValue – (HysteresisPercent * MaximumTension)
Alarm activation type 1:
Alarm turns on when tension is less than Low value.
Alarm turns off when tension is greater than (LowValue + (HysteresisPercent * MaximumTension)
Alarm activation type 2:
Alarm turns on when tension is greater than High value or less than Low value.
Alarm turns off when tension is less than (HighValue - (HysteresisPercent * MaximumTension)
and when tension is greater than (LowValue + (HysteresisPercent * MaximumTension)
Alarm activation type 3:
Alarm output is the complement of alarm activation type 2.
Page 30
5–3
PARAMETERS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Digital input threshold
Parameter #
Description
Default
Range
P.12
Sets the digital input threshold for either 5V or 24V
operation.
When set for 5V, the threshold between on and off
is 2.5 volts with 20% hysteresis.
When set for 24V, the threshold between on and
off is 12 volts with 20% hysteresis.
24 volts
n/a
Calibrate the analog outputs (not normally changed)
CAL0 – These parameters set the offset and gain for the outputs to calibrate the outputs to real
volts or real current. The parameters compensate for component tolerances on each DLCA.
These parameters are calibrated at the factory and are not reset by the power-up function reset
parameters to default.
If these need to be changed connect a volt meter or current meter as appropriate to the output
that is being calibrated.
Parameter #
Description
Range
C0.1
Sets the 0 to 10V output to 0%.
Change the value until the meter reads 0.00 volts
{0, 9999}
C0.2
Sets the 0 to 10V output to 100%.
Change the value until the meter reads 10.00 volts
{0, 9999}
C0.3
Sets the 4 to 20mA output to 0%.
Change the value until the meter reads 0.00 milliamps.
{-999, 9999}
C0.4
Sets the 4 to 20mA output to 100%
Change the value until the meter reads 20.00 milliamps
{0, 9999}
C0.5
Sets the 0 to 1mA output to 0%.
Change the value until the meter reads 0.00 volts or 0.00
milliamps
{0, 9999}
C0.6
Sets the 0 to 1mA output to 100%.
Change the value until the meter reads 10.00 volts or 1.00
milliamps.
{0, 9999}
Page 31
5–4
PARAMETERS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Password
Parameter #
Description
Range
P.00
Password
When the DLCA is locked, all parameters will be viewable but
cannot be changed and no calibrations can be performed.
To lock or unlock the DLCA press [] to show the lock or unlock
status, displayed as ULOC for unlocked and LOC for locked.
To lock the DLCA the password must be entered twice. To
unlock the DLCA the password only needs to be entered once.
To lock the DLCA
Press [] again and the display will show PAS1, press [] and
enter the password using the [+] and [-] buttons. Press and
hold [] for two seconds to enter the password.
The display now shows PAS2. Press [] and enter the same
password using the [+] and [-] buttons. Press and hold [] for
two seconds to enter the password.
The display now shows LOC for locked. Press [] to return to
displaying tension.
To unlock the DLCA
Press [] again and the display shows PAS1. Press [] and enter
the password using the [+] and [-] buttons. Press and hold []
for two seconds to enter the password.
The display now shows ULOC if the correct password was
entered. Press [] to return to displaying tension.
If the password was incorrect, the display shows LOC and the
DLCA is still locked. Press [] to return to displaying tension,
and then repeat the unlock procedure.
{0, 9999}
Page 32
5–5
PARAMETERS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Miscellaneous
Parameter #
Description
Default
P.19
Tension number format
Tells whether tension display is 3-digit with no fixed right-hand
zero or 3-digit with fixed right-hand zero.
0
0 =
Auto Select between formats. (Based on value in
Maximum Tension C1.3 or C2.5).
1 =
3-digit with no fixed right-hand zero.
2 =
3-digit with fixed right-hand zero.
P.20
Tension polarity
Set to -1 to show positive tension when the force is acting in
the direction opposite the force direction arrow on the load
cells. Set automatically by Precision calibration.
+1
P.21
DP position
Set the decimal point position to show when displaying tension
0
0 =
0000
1 =
0000.
2 =
000.0
3 =
00.00
4 =
0.000
P.22
Lock out zeroing tension from [] button and digital input when
a password has locked the DLCA.
0
0 =
Zeroing tension allowed when password has locked the
DLCA
1 =
Zeroing tension locked out when password has locked
the DLCA
P.23
Firmware Version. Displays the firmware version.
P.24
Exit from menu and return to displaying tension
Page 33
6–1
MAINTENANCE
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MAGPOWR DLCA
MI 850A348 1 E
Figure 7. Enclosure top removal
Maintenance
No regular maintenance is required on the DLCA.
Fuse replacement
The fuse can be accessed by opening the enclosure. Insert a flat blade screwdriver under
one of the retaining tabs in the base and lift the cover. See Figure 7.
Page 34
7–1
TROUBLESHOOTING
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Fault description
Probable cause
Solution
Reference
Er 10 at power-up
Sensor White (S+) or
Black (S-) wire
disconnected
Check sensor wiring.
Figure 2. DLCA wiring
Er 11 at powr-up
Sensor Red (P+) wire
disconnected
Check sensor wiring.
Figure 2. DLCA wiring
Er 12 at power-up
Sensor Green (P-) wire
disconnected
Check sensor wiring.
Figure 2. DLCA wiring
Er 13 at power-up
Sensor Failure or other
mis-wiring error
Example: Green and
White wire swapped, etc.
Check sensor wiring.
Figure 2. DLCA wiring
Display not lighted
No power
Check power wiring
Figure 2. DLCA wiring
Fuse blown
Check fuse in DLCA.
Fuse ratings in
Specifications; p. 8-1
Fuse Replacement; p. 6-1
Analog outputs not
changing with the
displayed tension
Analog output shorted
Check Analog output
wiring.
Figure 2. DLCA wiring
Analog output range
misconfigured
Check parameters P.06
through P0.11.
––
Analog output not
calibrated
Perform output
calibration CAL0.
––
Alarm output not
working
Alarm not wired
correctly
Check alarm wiring.
Figure 2, DLCA wiring
Alarm not configured
correctly
Check parameters P.13
through P.18
––
Remote zero not
zeroing tension
Remote zero input not
wired correctly
Check remote zero
wiring.
Figure 2, DLCA wiring
Digital input threshold
level not set correctly
Check parameter P.12
––
Displayed tension is
reading negative
value with increasing
tension.
Tension polarity is
wrong
Check parameter P.20.
––
Cannot change
parameters or
perform calibration.
Password protection is
active
Enter the password into
P.00 to unlock the DLCA.
The master unlock
password is 6195.
––
Page 35
8–1
SPECIFICATIONS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
General
Supply voltage range
–
24 VDC +/-10%
Proper earth grounding is required.
Note that the negative supply and earth
ground are interconnected.
The power supply must have an SELV output,
such as Puls ML15.241, Mean Well MDR-2024 or equivalent
The Mean Well MDR-20-24 can be purchased
from Fife as part number 93157-024.
Supply current
–
0.14 A, max.
Internal fuse
–
2.5 A, fast-blow
Bussman GBD2.50, or Littelfuse 21702.5
Temperature range
Operating
Storage
-
-
0° to 50°C (32° to 122°F)
-20° to 80°C (-4° to 176°F)
Enclosure
-
IP20
Climatic class
-
3K3 (EN60721)
Relative humidity
-
5% to 85%
Pollution degree
-
2 (IEC664-1)
Dimensions
–
Height - 58.9 mm (2.32 in),
Length – 70.0 mm (2.76 in)
Width – 86.0 mm (3.39 in)
Display
-
4-digit LED, 3-digit tension resolution.
Display decimal point
-
selectable position.
Maximum gain
-
32:1
Tare Adjustment
-
90% of Load Cell Rating.
Page 36
8–2
SPECIFICATIONS
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Inputs and outputs
Load cell excitation
-
5 VDC or 7.5 VDC, 100mA Maximum
Load cell sensitivity
-
1.5 to 100 mV/V
0-10V analog output
-
0 to 10 VDC, 2k minimum load
4-20mA analog output
-
4 to 20 mADC, 450 ohm maximum load
0-1mA or 0-10V analog output
-
0-1 mADC, 1k maximum load
0-10 VDC, open circuit
Alarm output
-
30 VDC maximum, 0.4 ADC maximum,
40 VDC isolation
Digital input (zero tension)
-
24 VDC maximum, 5V or 24V selectable threshold
Temperature drift
Tension display
-
Max null drift: 0.02% of load cell rating per °C
0-10V output
-
Max null drift: 0.02% of load cell rating per °C
4-20mA output
-
Max null drift: 0.02% of load cell rating per °C
0-1mA / 0-10V output
-
Max null drift: 0.07% of load cell rating per °C
Certifications and
environmental compatibility
Product certifications
–
CE
TUV Rheinland of North America
to UL61010-1
and
CAN/CSA-C22.2 No. 61010-1 and
CB Certificate to IEC61010-1
RoHS
Page 37
9–1
SERVICE
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
Service requests
and replacement
parts
To request service or to get replacement parts, contact one of
the following addresses or your regional office listed at the
bottom of this page.
Fife
222 West Memorial Rd.
Oklahoma City, OK, 73114
USA
Phone: 1.405.755.1600
Fax: 1.405.755.8425
Web: www.maxcessintl.com
Fife-Tidland GmbH
Max-Planck-Strasse 8
65779 Kelkheim
Deutschland
Telefon: +49.6195.7002.0
Fax: +49.6195.7002.933
Web: www.maxcess.eu
When ordering replacement parts, please indicate, where
possible, part number, drawing number and model description.
If it is necessary to return the DLCA for service, care must be
taken to properly package the unit to prevent damage during
shipment. If possible, use the original shipping containers.
Page 38
EUROPE, MIDDLE EAST
AND AFRICA
Tel +49.6195.7002.0
Fax +49.6195.7002.933
www.maxcess.eu
© 2017 Maxcess
Page 39
10–1
APPENDIX A
www.maxcessintl.com
MAGPOWR DLCA
MI 850A348 1 E
DLCA Flowchart
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