Keyence LS-7000 User Manual Page 179
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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9-3
Chapter 9 Troubleshooting
9
Problem Inspection Remedy
Check that the LED light source of
the transmitter is lit.
Check the connection of the cable
between the transmitter and receiver.
(See page 1-18)
If the LED light source is still OFF, the
LED light source needs a replacement.
Contact your KEYENCE representative.
Check that the measuring head is
connected correctly.
Connect the cable correctly.
(See page 1-18)
The
measured
value is not
displayed.
Check the averaging number is set
correctly.
Set the averaging number correctly.
(See page 4-31)
Check that the target is within the
measuring area.
Locate the target correctly in the
measuring area. (See page 8-4, 8-5)
Check that the reference edge is
located within the measuring area.
Set the reference edge within the
measuring area if the LS-7000 Series
is in T-EDGE or B-EDGE mode.
(See page 4-9)
Check that the cover glass of the transmitter
or receiver is free of dust and dirt.
Remove the dirt and dust from the
cover glass. (See page 3)
Check that the cover glass of the
transmitter or receiver is free from
damage, such as scratches or
cracks.
The cover glass needs a replacement if
it is damaged. Contact your KEYENCE
representative.
The
measured
value
displayed
fluctuates.
Check that the target is free of dust,
dirt, burrs, water drops, and oil drops.
Remove the dust, dirt, burrs, water
drops, and oil drops from the target.
Use the hold value elimination function
(See page 4-52) or area check
function (See page 4-15).
Check that there are no water sprays
or oil sprays in the operating
environment.
Blow off the sprays with air.
Use the hold value elimination function
(See page 4-52) or area check
function (See page 4-15).
Check that there is no mutual
interference.
• Use the mutual interference
prevention function. (See page 5-12)
• Change the mounting position of the
measuring head.
Check that there is no intensive external light disturbance.
Block the external light disturbance.
Check that there is no flow of air. Use a cover to prevent the flow of air or
agitate the air with a fan to shorten the
cycle of the flow so that the influence
of the flow on the displayed measured
value will be suppressed.
Check that the LED light source is
bright enough.
Use the LED inspection function and check
the strength of light. (See page 5-10)
- LS-7000 Series 1
- General precautions 2
- Safety Precautions 3
- ■ Precautions for LED 5
- Ferrite core 6
- OP-31973 6
- About this Manual 7
- Optimum Measurement Methods 8
- Configuration of Manual 9
- LS-7001 Operation Map 10
- Hold function (See page 3-5) 11
- Contents 12
- Chapter 4 Function Settings 13
- Chapter 7 RS-232C 14
- Chapter 8 Specifications 14
- Chapter 9 Troubleshooting 14
- Appendix 14
- Chapter 1 15
- ■ Special Features 16
- ■ Principle of Measurement 16
- System Applications 17
- Package Checks 18
- Chapter 1 Getting Started 19
- Functions and Nomenclature 21
- ■ Control Panel 22
- Mounting and Connection 25
- 2 Mount the measuring head 26
- Mounting the Controller 27
- ■ Mounting to Panel 28
- Connection 31
- ■ Transmitter and Receiver 32
- ■ Power Supply Cable 32
- Supply Stand On and Off 33
- Measurement and 33
- Chapter 2 37
- Set value 38
- Measurement of Pitch 44
- Chapter 3 45
- Chapter 3 Operation Control 46
- Chapter 3 Operation Control 47
- Area Monitor 48
- Hold Function 49
- Automatic Zero Function 50
- Panel Lock Function 51
- Program Changes 52
- Chapter 4 53
- Flow of Program Settings 54
- External I/O 55
- Output Settings 55
- Measuring Mode Settings 55
- Option Settings 55
- ■ Program Initialization 58
- (See page 4-15) 60
- (See page 4-16) 60
- (See page 4-17) 60
- (See page 4-18) 60
- (See page 4-14) 60
- Area Selection 61
- ■ SEG (Segment) 62
- ■ Setting Procedure 64
- DIA (Diameter) 65
- T-EDGE (Top edge) 65
- B-EDGE (Bottom edge) 65
- SEG (Segment) 65
- 6 Press the 69
- Calibration Settings 72
- 5 Press the 77
- Measuring mode 85
- Analog Output Settings 96
- ■ Analog update mode 98
- Comparator Output Setting 99
- (Normally open) 100
- (Normally closed) 100
- 1 Press the 101
- 2 Press the 101
- 4 Press the 101
- Tolerance (LIMIT) Settings 102
- Limit Settings 103
- Hold Value Elimination 104
- 1 Continue pressing the 105
- Chapter 4 Function Settings 107
- 3 Press the 108
- Display Unit 109
- I/O Mode 111
- Chapter 5 115
- Possible Environment Settings 116
- This part changes 118
- ■ Resetting All Programs 120
- ■ RS-232C Settings 121
- ■ Baud Rate 121
- ■ Parity 121
- ■ Stop Bit 122
- ■ Data Length 122
- ■ Data Mode 122
- ■ Data Transmission Mode 123
- The buzzer turns ON 126
- The buzzer turns OFF 126
- Chapter 6 129
- Connector I/O 130
- Terminal block 130
- Chapter 6 I/O Terminals 131
- Chapter 6 I/O Terminals 134
- ZERO Input 6-3, 6-5, 6-6 135
- ■ FUNCTION Output 136
- Electrical Specifications 137
- ■ NPN Open Collector Output 2 138
- ■ Analog Voltage Output 138
- Timing Chart 139
- ■ Sample Hold 2 140
- ■ Self-timing Hold 140
- ■ BCD Output Switching 141
- ■ Minimum Input Period 142
- Chapter 7 143
- Specifications 144
- ■ RS-232C Connection Settings 145
- ■ Environment Settings 146
- Connecting to KV Series 147
- Outline of Command Formats 148
- Measurement Serial Commands 149
- Commands in Detail 150
- ■ Measured Value Output 150
- Chapter 7 RS-232C 151
- Response 153
- Setup Serial Commands 154
- ■ Area Check 156
- ■ Calculation 156
- ■ Average 156
- (Page 7-15) 161
- Batch Commands 162
- ASCII Table 164
- ■ Output 165
- TIMING input 166
- Sampling period + 3.5 ms 166
- RS-232C data output 166
- Chapter 8 167
- Measuring Head 169
- Optional Accessories 169
- Characteristics 170
- Temperature Characteristics 171
- ■ Measurement Response Time 172
- Mode Specifications 173
- External Dimensions 174
- ■ LS-7030 Measuring Head 175
- ■ LS-7070 Measuring Head 175
- ■ Extension Cable 176
- Chapter 9 177
- Troubleshooting Guide 178
- Chapter 9 Troubleshooting 179
- 2 Continue pressing the 182
- Appendix-2 183
- Appendix-3 183
- Appendix-5 183
- Setting Record Sheet 185
- Threshold 186
- WARRANTIES AND DISCLAIMERS 191
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