Burford 2000 User manual

Copyright © 2020 by Burford®Corp.
Second Edition, Date: April 2016
Manual Part No.
Serial #
ELECTRONIC SERVO
TYER MODEL
2000/2100
128684-M
21575, 21576

SAFETY PRECAUTIONS
As Burford®Corp. strives to promote safety in the maintenance and operation of Burford®
equipment; we request that the following safety procedures be followed, along with any
additional safety procedures set by the customer’s in-plant safety officers or local codes.
1. Read the manual completely before attempting installation or operation of this unit.
2. This machine may contain programs that are password protected. Contact your
supervisor or Burford®Corp. for password.
3. Incoming electrical power must be properly shielded, routed, and grounded. All
safety codes should be followed. Study wiring diagrams before attempting
installation.
4. Disconnect power to equipment before removing any guards or covers. Replace
guards or covers before resuming operation of the unit.
5. Loose clothing, jewelry, and long hair should be considered a safety hazard around
mechanical equipment. Ensure that they will not be entangled in the equipment.
6. Keep clear of moving machine parts. Bodily harm and/or serious injury may result
from contact with moving gears, sprockets, chains or pneumatically controlled
machine components.
7. Do not bypass safety switches.
8. Do not attempt repairs while equipment is running.
9. Use only original equipment parts designed for safe operation of the equipment.
10.Only authorized personnel should be allowed to operate or perform maintenance
on the unit.
11.This unit is not wash-down ready. Do not wash the unit or any of its electrical or
mechanical components, with any form of high pressure or running liquids.
Info symbol indicates useful information to
assist in installation and operation of the unit.
Stop symbol indicates important instructions to
prevent unit damage or adverse effects.
Caution symbol indicates bodily harm may incur
if instructions are not followed.

iii
DISCLAIMER WARNING
The descriptions and specifications contained in this Service Manual were in effect when
this manual was approved for printing. Our policy is one of continuous improvements, and
we do hereby reserve the right to discontinue models at any time, or to change
specifications, prices, or design without notice and without incurring obligations.
Burford
®
Corp. expressly disclaims any liability for damages and/or injuries caused
because of negligence or misuse of its product. Such negligence or misuse includes, but
is not limited to, software/program alteration, removal of guards, faulty wiring due to
improper installation, subjecting the unit to wash-down environments or any physical or
mechanical changes made to a Burford
®
unit, by anyone other than a qualified Burford
®
Technician.
Burford
®
equipment should only be used for the purpose for which it was sold, and should
not be modified in any way without notifying the General Manager of Burford
®
Corp. in
writing of the modification.
The original language for this document is English. Translations to other languages may
not be accurate.

TABLE OF CONTENTS
SAFETY PRECAUTIONS II
DISCLAIMER WARNING III
TABLE OF CONTENTS IV
TABLE OF FLOW CHARTS XI
CHAPTER 1: INTRODUCTION 14
 Specifications 15
 Models 15
 Conveyor Requirements 16
 Bag Neck Length Requirements 17
 Unit Overview 18
 E-Stop Location 19
CHAPTER 2: KEY COMPONENTS 22
 Tyer Head 22
 Control Panel 22
 Needle 23
 Twister Hook 24
 Holder / Shear 25
 Holder / Shear, cont’d 26
 Holder / Shear, cont’d 27
 Bag Switch 28
 Ribbon Dispense Encoder 29
 Ribbon Guide 30
 Gathering Belts 31

v
 Belt Speed Switch 31
 Main Enclosure 32
 Main Disconnect 32
 Ribbon Tension Assembly 33
 Ribbon Tension Spring 33
 Brake 34
 Dancer Arm 35
 Ribbon Drop Sensor 35
 Gathering Brush 36
 Adjustment Knob 36
 Pressure Regulator 37
 Bag Stop 37
 Optional Key Components 38
 Package Detection Sensor 39
 Speed Follower Encoder 40
 Operator Display 41
 Bag Tail Blower 41
 Stand 42
 Conveyor 42
CHAPTER 3: INSTALLATION 44
 Mechanical Installation 44
 Mechanical Installation, cont’d 45
 Mechanical Installation, cont’d 46
 Mechanical Installation, cont’d 47
 Electrical Interconnections 48
 Bagger Enable Circuit (Safety Interlock) 48
 Bagger-Active Circuit 49

 Counter Output / External Counter Output 49
 Installation arrangements 50
CHAPTER 4: OPERATION PROCEDURES 52
 Theory Of Operation 52
 Control Panel 53
 “STOP” pushbutton 54
 “RUN” pushbutton 54
 “THREAD” pushbutton 54
 “MOTORS ENABLED” light 55
 “INITIALIZED” light 55
 “TYER FAULT” light 55
 “BELT SPEED” push wheel switch 56
 Main Enclosure 57
 Package Recognition System 58
 Package Detection System (PDS) 59
 Dual Ribbon Spool System 60
 Ribbon Tension 61
 Changing And Threading The Ribbon 62
 Changing And Threading The Ribbon, cont’d 63
 Changing And Threading The Ribbon,cont’d 64
 Changing And Threading The Ribbon,cont’d 65
 Speed Following Feature 66
 Daily Startup 67
 Daily Startup, cont’d 68

vii
CHAPTER 5: TIMING AND ADJUSTMENTS 70
 Bag Switch Adjustment 70
 Holder Shear Adjustment 71
 Shuttle Bar Alignment 72
 Gathering Belts Tension Adjustment 73
 Gathering Belts Speed Adjustment 74
 Belt Guide Tension Adjustment 75
 Gathering Belts Teeth Mesh 75
 Proximity Sensor Adjustment 76
 Proximity Sensor Adjustment, cont’d 77
 Gathering Brush Tension Adjustment 78
 Gathering Brush Air Adjustments 79
 Ribbon Dispenser Adjustment 79
 Ribbon Dispenser Adjustment, cont’d 80
 Ribbon Dispenser Adjustment, cont’d 81
 Needle Roller Replacement 82
 Needle Roller Replacement, cont’d 83
 Spacing of Twister Hook Shaft to Tip Of Holder Shear 84
 Adjusting Tie Tightness 85
 Nominal Adjustment 86
 Adjusting the Eccentric Ribbon Guide 86
 Adjusting the Belt Pulley 86
 Auxiliary DIP Switch Settings 87
 CPU DIP Switch Settings 88
 Fuse And Circuit Breaker List 89
 Counter Output 90
 PROM Replacement 90

 PROM Replacement, cont’d 91
 PROM Replacement, cont’d 92
CHAPTER 6: COMMUNICATIONS 94
 Terminal Option 94
 Communicating With the Controller 94
 Burford
®
TERMINAL program 95
 Terminal Program in Microsoft Windows version 3.0 or 3.1 96
 Servo Tyer controller and PC communication cable 97
 Servo Tyer Commands 98
 Starting the Servo Tyer 98
 When you start the Servo Tyer, cont’d 99
 TIME and DATE commands 100
 TROUBLE command 100
 QUERY command 101
 4.9.4 QUERY command, cont’d 102
 RESET command 103
 DEBUG command 103
 HOME command 104
 DISPENSE command 104
 DISPENSE command, cont’d 105
 (+) command 105
 (+) command, cont’d 106
CHAPTER 7: TROUBLESHOOTING 108
 Troubleshooting Considerations 108
 Diagnostic LED's 109
 Diagnostic LED's, cont’d 110
 Diagnostic LED's, cont’d 111

ix
 Seven Segment LED Error Codes 112
 Seven Segment LED, Error Codes, cont’d 113
 Seven Segment LED, Error Codes, cont’d 114
 Audible Alarm Codes 115
 Troubleshooting Flow Charts 115
CHAPTER 8: MAINTENANCE 158
 Lubrication 158
 Preventive Maintenance 159
 Daily 159
 Weekly 159
 Monthly 159
 Quarterly 159
 Preventive Maintenance, cont’d 160
 Semi-Annually 160
 Yearly 160
 24 Month 160
 Power Supply Board Fuse Replacement 161
 Operating Voltages 161
CHAPTER 9: TEST PROCEDURES 164
 Motor Encoders Test Procedure 164
 Motor Continuity Test Procedure 165
 Servo Motor Fuses Test Procedure 166
 36 Volt DC Power For Motors Test Procedure 167
 Proximity Switch LEDs Test Procedure 168
 5 And 12 Volt D.C. Power Supply Test Procedure 169
 BCD Switch Test Procedure 170

 Bag Switch Test Procedure 171
 Field Termination Board Relays Test Procedure 172
 Operator Test 173
 Mechanics Test 174
CHAPTER 10: PARTS AND DRAWINGS. 178
 RECOMMENDED SPARE PARTS LIST 178
 Machine Diagrams 178
 Machine Side Diagram 180
 Motor Diagram 181
 Holder Shear Proximity Sensor 182
 Ribbon Drop Proximity Snesonr 183
 Ribbon Dispense Proximity Sensor 184
 Needle Home Proximity Sensor 185
 Twister Hook Proximity Sensor 186
 Main Enclosure 187
 Central Processing Unit board (PN-C01410) 188
 Auxiliary board (PN-C01267) 188
 Field Termination Board (PN-C01299) 188
 Main enclosure relays 189
 Field termination board relays 189
 Auxiliary board relays 189
 Motor Control Diagram 190
 Gathering Brush Power Diagram 191
 DC Power Latch Circuit Diagram 192
 Bagger Enable Circuit Diagram 193