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2000D

technical manual

Page 40

DLC C

ONNECTIONS

The diagram below is a general outline of the connectors as seen on the remote DLC
terminal boxes:

STATUS

LINK

•
•
Ž
•
Œ

Œ
•
Ž
•
•

•‚ƒ„…

ID SELECT

•
Ž

DLC External Connections

CONNECTOR

PIN DESCRIPTION

CELL 1-8

EXC - ( 0VDC excitation voltage for load cells)

•

EXC+ (+5VDC excitation voltage for load cells)

SHL (Ground)

•

SIG - ( - Load cell signal )

•

SIG+ (+ Load cell signal)

DIGITAL LINK

V+ (DLC Power supply)

•

V- (DLC Power supply)

Spare terminal

•

+ CTL (Current loop network input)

•

CTL (Current loop network output)

ID SELECT

(JUMPER SELECT)

•
Ž

SECONDARY DLC
SLAVE

PRIMARY DLC
SLAVE

MAINTENANCE
MODE

DIGITAL LINK

Содержание m2000D

Страница 1: ...3 channel digital indicator Manual Release for V1 03D of software We are continuously improving the manual and will send out updated versions as soon as the manual has been finalized More examples an...

Страница 2: ...ithout notice due to correction or enhancement The information described in this manual is the property of Western Scale No part of this manual may be reproduced or transmitted in any form without the...

Страница 3: ...NSTALLATONS q HOPPER SCALE INSTALLATIONS q GENERAL ALLOCATION RELATED COMMANDS q GENERAL CABLE CONNECTION GUIDE q GENERAL DIAGNOSTICS INTRODUCTION SECTION SCALE INSTALLATIONS GENERAL DIAGNOSTICS HOPPE...

Страница 4: ...PLE 1 15 SECTIONAL EXAMPLE 2 16 HOPPER SCALE INSTALLATION GUIDE 19 520 Assign a Hopper Scale calibration command 20 HOPPER EXAMPLE 1 21 HOPPER EXAMPLE 2 22 GENERAL ALLOCATION RELATED COMMANDS 25 500 C...

Страница 5: ...alibration command 33 591 Backup System Setup To a DLC slave calibration command 34 594 Reload Scale Allocation field replacements calibration command 34 600 Scale Status Diagnostics Information non c...

Страница 6: ...ds allow the user to assign any or all of the load cells on the DLCs to a particular scale A scale assignment might consist of either a hopper or sectional scale configuration These hopper sectional s...

Страница 7: ...2x700 ohm in total Resolution 512 000 A D counts per load cell DLC cable length 500ft nominal or 1000 ft 22 AWG 2 pair each pair shielded with remote power DLC current 500mA per slave with 8 350 ohm l...

Страница 8: ...onfiguration SCALE 3 SCALE 2 M2000D DIGITAL SYSTEM DIAGRAM M2000D DIGITAL INDICATOR SCALE 1 Sectional 4 sections SCALE 2 Hopper 4 corners SCALE 3 Hopper 4 corners DLC P RIMARY DLC S ECONDARY HOPPER SC...

Страница 9: ...sists of two paired load cell channels The service personnel have the ability to perform corrections on a section by section basis or even on a corner basis if required DLC CHANNEL ALLOCATION There ca...

Страница 10: ...es sections will function in such a way that sections must be paired together across from each other as outlined in Figure 2 Two DLCs may be used for a sectional scale allocation Sections are allowed...

Страница 11: ...er what type of scale was allocated how many load cells are involved and to which terminal block they are assigned The status information window also shows the current load cell that is selected as pa...

Страница 12: ...scale was allocated for this scale channel P P rimary DLC slave selected Indicator to show that the section scale is located on the primary DLC S S econdary DLC slave selected Indicator to show that t...

Страница 13: ...this scale channel S S ectional scale allocation Indicator to show that a Sectional scale was allocated for this scale channel P P rimary DLC slave selected Indicator to show that the corners for this...

Страница 14: ...he indicator POWER SUPPLY CONNECTION The M2000D indicator requires a regulated input with an external source of 10 35 VDC A 120VAC to 12 VDC adapter is supplied with the indicator Please pay close att...

Страница 15: ...ven to the communications protocol and to any remote requirements to prevent damaging serial ports The recommended cable to be used with serial communication is 20 to 28 AWG with a braided or foil shi...

Страница 16: ...from the remote DLC slaves both ends should be grounded to a good earth connection Normally the DLC terminal box will be mounted onto the steel chassis of the weigh platform with a braided earth stra...

Страница 17: ...m2000D technical manual Page 12 Intentionally Left Blank...

Страница 18: ...the scale to optimize the resolution of the AD converters Each AD converter can produce 512 000 raw counts at full AD input range 8 Press the ON OFF key until you see graduated counts prefixed by the...

Страница 19: ...w to interpret the assignment information displayed on the LED display while in calibration mode for a sectional scale Use the ON OFF key to select the status display window Taking the example of a se...

Страница 20: ...as the Combination of the two associated corners The first corner of section 4 goes to cell 7 on the Primary DLC terminal box The second corner of section 4 goes to cell 8 on the Primary DLC terminal...

Страница 21: ...tional scale with 6 sections total of 12 load cells The diagram below outlines the connection diagram of the 6 sectional scale starting with section on the Primary DLC terminal box and ending on the S...

Страница 22: ...Section 4 as the Combination of the two associated corners cells The first corner of section 4 goes to cell 7 on the Primary DLC terminal box The second corner of section 4 goes to cell 8 on the Prima...

Страница 23: ...m2000D technical manual Page 18 Intentionally Left Blank...

Страница 24: ...8 Press the ON OFF key until you see graduated counts prefixed by the letter C Graduated counts always represent the sum of all the corners cells 9 The scale is now ready to be dead loaded using comm...

Страница 25: ...boxes these 4 corners were assigned to the physical cell terminal numbers This information is displayed as follows NOTE If the system could not find any allocation space on either the primary or secon...

Страница 26: ...to damage HOPPER EXAMPLE 1 Once the 4 corner hopper scale is allocated in calibration mode the allocation information pertaining to each corner of the hopper scale can be viewed as follows by pressin...

Страница 27: ...er completing the first scale allocation we exit calibration mode The next step is to allocate hopper scale 2 by entering calibration mode for scale 2 the executing command 29 After entering a passwor...

Страница 28: ...3 The allocation information indicates that we are looking at the sum of 4 corners of a hopper scale on the secondary DLC corner 1 goes to cell 1 on the Secondary DLC terminal box corner 2 goes to cel...

Страница 29: ...m2000D technical manual Page 24 Intentionally Left Blank...

Страница 30: ...ocation calibration command 502 Clear Scale 2 Allocation calibration command 503 Clear Scale 3 Allocation calibration command This command will reset and invalidate the current calibrated scale The M2...

Страница 31: ...se the PRINT SELECT key to toggle between enabled state and disabled state for the corner in question If nothing happens when the PRINT SELECT key is pressed it means that the corner that is currently...

Страница 32: ...mand will reset the field span and zero adjustment entries for the scale in question In scales containing multiple load cells it is often required to do small corrections to selected load cells in ord...

Страница 33: ...unts related to the corner under correction The following keys are assigned special functions while in adjustment mode q Use the IN key to increase the weight of the corner or section q Use the OUT ke...

Страница 34: ...fixed with a flashing letter C q Place a reference weight on the corner section to be adjusted q Execute command 532 followed by PRINT SELECT the display will flash the currently selected corner secti...

Страница 35: ...bration mode This command displays the number of successful transmitted packets on the DLC communications line This command keeps track of the number of packets received in real time The throughput of...

Страница 36: ...ory Upgrading the firmware of a DLC remote unit should in most cases not influence the calibration information and scale allocation settings The DLC to be upgraded should be specified by supplying a p...

Страница 37: ...while in calibration mode please see the table on scale status information for more detail When entering command 558 it will return with the current setting of the corner section If the value displaye...

Страница 38: ...ected to the network in order to facilitate a correct system configuration This command is of use in the following scenarios q After a typical calibration session it is recommended to back up the cali...

Страница 39: ...command This command is typically used for field DLC replacements This command can be used to download the latest scale allocation to a DLC This is handy when performing a field replacement of a DLC u...

Страница 40: ...that slave The user may enter a new AD converter number between 1 8 followed by PRINT SELECT or simply press the CLEAR key to exit the command Only the factory is allowed to make permanent changes to...

Страница 41: ...ser to look at each of the corner s raw counts in real time by pressing the TEST key After entering the command use the IN OUT keys to scroll through the allocation information pertaining to the scale...

Страница 42: ...follows q 0 no slaves found to be online q 1 only Primary slave found q 2 only Secondary slave found q 3 both Primary and Secondary slaves found GENERAL DLC COMMANDS TIP If both slaves are configured...

Страница 43: ...m2000D technical manual Page 38 Intentionally Left Blank...

Страница 44: ...supply COM 1 CTS Input Printer telling the Indicator to send more data RTS RX Input data received by the Indicator TX Output data transmitted by the Indicator RTS Output Indicator signal readiness to...

Страница 45: ...CONNECTOR PIN DESCRIPTION CELL 1 8 EXC 0VDC excitation voltage for load cells EXC 5VDC excitation voltage for load cells SHL Ground SIG Load cell signal SIG Load cell signal DIGITAL LINK V DLC Power...

Страница 46: ...3 SHL 2 V 1 V M2000D INDICATOR 1 CTL 2 CTL 3 4 V 5 V DLC SLAVE 1 EXC 2 EXC 3 SHLD 4 SIG 5 SIG EXC 1 EXC 2 SHLD 3 SIG 4 SIG 5 1 EXC 2 EXC 3 SHLD 4 SIG 5 SIG EXC 1 EXC 2 SHLD 3 SIG 4 SIG 5 1 EXC 2 EXC 3...

Страница 47: ...diagram for instances where the two DLC slaves are grouped close to one another but far from the indicator Please pay attention to the current loop cable configuration when connecting two DLC slaves...

Страница 48: ...ve wiring diagram for instances where the two DLC slaves are far removed from each other Please pay attention to the current loop cable configuration when connecting two DLC slaves CL 1 CL 2 3 V 4 V 5...

Страница 49: ...s the primary slave CONDITION abnormal Blinking two short followed by one long consistently DLC slave is in firmware upgrade mode and configured as the secondary slave CONDITION abnormal This state is...

Страница 50: ...general wiring diagrams for proper connection of communications lines Flickering but mostly on Indicates that network commands are send to the slaves Normal while in calibration mode however outside c...

Страница 51: ...ta for all three scales Flickering but mostly on Indicates that network commands are send to the slaves normal Normal while in calibration mode however outside calibration mode it should be in state i...

Страница 52: ...be decremented past 1 20 Parameter memory write error indicator requires service 21 Parameter checksum error parameters have been lost 22 Program check fault indicator requires service 23 Invalid Seri...

Страница 53: ...or does not exist 121 Battery must be removed 130 COM1 loop back test failed 131 COM2 loop back test failed 133 COM driver chip failed 140 FLASH memory erase failed 141 FLASH memory write failed 151 D...

Страница 54: ...action table does not verify with slave entries 165 Slave assigned to a scale but not detected by system 170 Scale 1 allocation action table does not verify with slave entries 171 Scale 2 allocation a...

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