Western Scale m2000D Technical Manual Download Page 47

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2000D

technical manual

Page 42

UAL

DLC

LAVE

ONNECTION –

YPE

The diagram below demonstrates a wiring 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:

CL-

CL+

V-

V+

DLC SLAVE

CL-

CL+

V-

V+

DLC SLAVE

M2000D INDICATOR

CTL-

CTL+

SHLD

V-

V+

Summary of Contents for m2000D

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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