Smart Devices For LU Series & PLC Series
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Expanding functions with JUKI’s smart devices!

Supported models
LU-2800 Series
LU-2800V Series
PLC-2700 Series
PLC-2700V Series
LU-1500 Series(supporting the digital tension only)
1. Skip Stitch Detector
The skip stitch is automatically detected the moment it occurs, the sewing machine is stopped, and it is notified by a buzzer and a red lamp*.
Productivity increased by preventing the spread of sewing troubles and reducing waste!
Monitors skip stitches by detecting the threads across the hook. If any skip stitch is detected, the buzzer sounds, the red lamp lights up, and the sewing machine stops. Therefore, operators can concentrate on their work without worrying about skip stitches. Finding defective skip stitches during sewing reduces the load of inspection work and prevents the outflow of defective products.
* In the LU-2800V series and PLC-2700V series, the error is notified by displaying the error code on the operation panel, not by lighting the lamp.
2. Bobbin Thread Remaining Detector
Automatically detects before the bobbin thread runs out and notifies you with a buzzer and a green lamp*. Possible to avoid sewing troubles in advance, reducing the burden on the operator and improving efficiency!
The remaining amount of bobbin thread is detected by a sensor using a dedicated bobbin. When the remaining amount of thread on the bobbin reaches the specified value, the buzzer sounds, the green lamp lights up, and the sewing machine can be stopped. Therefore, sewing operators can concentrate on their work without worrying about the remaining amount of bobbin thread, increasing the productivity.
* In the LU-2800V series and PLC-2700V series, the error is notified by displaying the error code on the operation panel, not by lighting the lamp.
3. Cover Sensor Unit [Each can be used separately.]
Opening / closing of the eye guard and cover is automatically detected, and when it is open, the sewing machine is stopped from starting. Making it easier to use and improving safety by preventing the accidents due to needle breakage, entanglement, etc.
Eye guard with an open/close sensor
Operators are protected from needle breakage during sewing. Since the sewing machine does not work when the eye guard is open, the sewing machine will not start unexpectedly when the needle is replaced even if the power is forgotten to be turned off.


Bed slide with an open/close sensor(LU Series)
Hook cover with an open/close sensor(PLC Series)
If the bed slide or hook cover is open, the sewing machine will not start. Therefore, there is no unexpected startup during bobbin replacement. It also prevents the material from getting entangled in the hook or the operator from being injured during sewing.

LU-2800 Series

PLC-2700 Series
Handwheel cover
with an open/close sensor
If the handwheel cover is open, the sewing machine will not start. So there is no unexpected start when turning the handwheel by hand. In addition, accidents such as threads or materials getting caught in the handwheel during sewing can be prevented.


4. Digital Tension ● Standard equipment for LU-2800V series and PLC-2700V series.
Setting of thread tension can be centrally managed by digitization.
Furthermore, the thread tension is prevented from being changed by the operator’s own judgment.
Numerical control of thread tension settings can improve reproducibility when changing work processes. Since a dedicated control box is required to change the settings, operators cannot change the thread tension, resulting in easier management and higher efficiency.
Digital tension device

Stable tension management possible because the needle thread tension is controlled by a pulse motor. (The connected control box facilitates the reproducibility of the thread tension suitable for the work process.)
Control Box

16 types of thread tension settings are available per sewing machine. Furthermore, one control box can manage up to 250 sewing machines.
Part No. list of smart devices
Skip Stitch Detector, Bobbin Thread Remaining Detector, Digital Tension
Models | Skip Stitch Detector+Bobbin Thread Remaining Detector | Digital Tension | Additional purchase parts |
|||
---|---|---|---|---|---|---|
Set 1 + 2 | 1. Skip Stitch Detector |
2. Bobbin Thread Remaining Detector |
Thread tension controller (assembly) |
Control Box | ||
LU-2800 Series | ||||||
LU-2810-7、LU-2810ES-7 | 40175752 | 40162088 | 40163832 | 40153263 | 40153920 | *1 |
LU-2810-7、LU-2810ES-7(For JA) | 40190016 | 40188862 | ||||
LU-2860-7 | 40175753 | 40162089 | 40163833 | 40153924 | - | |
LU-2860-7(For JA) | 40200662 | 40200665 | ||||
LU-2828-7、LU-2828ES-7 | 40175755 | 40162090 | 40163837 | 40153263 | - | |
LU-2818-7、LU-2818ES-7 | 40175754 | 40165240 | 40163836 | *1 | ||
LU-2810V-7 | 40216597 | 40216600 | 40216599 | - | - | *2 |
LU-2828V-7 | 40198455 | 40198453 | 40198457 | |||
LU-2860V-7 | 40205490 | 40205491 | 40205493 | |||
LU-2860V-7(For JA) | 40205531 | 40205533 | ||||
PLC-2700 Series | ||||||
PLC-2710-7 | 40175756 | 40162091 | 40154826 | 40153263 | 40153920 | - |
PLC-2760-7 | 40175757 | 40162092 | 40153314 | 40153924 | *3 | |
PLC-2710V-7 | 40221414 | 40221416 | 40221415 | - | - | *2 |
PLC-2760V-7 | 40221417 | 40221419 | 40221418 | *2 *3 | ||
LU-1500/ PLC-1700 Series | ||||||
LU-1510-7/ PLC-1710-7 | - | - | - | 40154434 | 40153920 | - |
LU-1560-7/ PLC-1760-7 | 40158964 |
*1 For LU-2810ES and 2818ES, also purchase the moving knife (part No.: 40195311).
*2. When purchasing the skip stitch detector or bobbin thread remaining detector of the LU-2800V or PLC-2700V series separately, also purchase the filter regulator (part No.: 40198456).
*3. For the PLC-2760 and 2760V, purchase two feed lever base side covers (set) of the needle width being used. Needle width 6mm: 40155443 / 8mm: 40155445 / 10mm: 0155447 / 12mm: 40153488
Cover Sensor Unit
Models | Cover Sensor Unit | ||||
---|---|---|---|---|---|
Set 3 + 4 + 5 + 6 | 3. Eye guard | 4. Handwheel cover | 5. LU: Bed slide PLC: Hook cover |
6. Cable* 4 | |
LU-2800 Series: Standard model | |||||
LU-2810-7 | 40152605 | 40193646 | 40152604 | 40152603 | 40151337 |
LU-2810-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40171589 | 40171587 | |||
LU-2860-7 | 40175682 | 40175683 | 40165313 | ||
LU-2860-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40177690 | 40177671 | |||
LU-2828-7 | 40171588 | 40171583 | 40151337 | ||
LU-2818-7 | 40171589 | 40171587 | |||
LU-2800 Series: High-speed model / digital model | |||||
LU-2810ES-7 | 40199283 | 40193646 | 40193648 | 40152603 | 40151337 |
LU-2810ES-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40199284 | 40171587 | |||
LU-2828ES-7 | 40199285 | 40171583 | |||
LU-2818ES-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40199284 | 40171587 | |||
LU-2828V-7 | 40198452 | 40171583 | 40193645 | ||
LU-2860V-7 | 40198458 | 40175683 40198459 |
|||
LU-2860V-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40198460 | 40177671 40198461 |
|||
LU-2810V-7 | 40216620 | 40152603 | |||
LU-2810V-7 (equipped with skip stitch and bobbin thread remaining detectors) |
40216661 | 40171587 | |||
PLC-2700 Series: Standard model | |||||
PLC-2710-7 | 40165317 | 40193646 | 40152604 | 40165318 | 40151337 |
PLC-2760-7 | 40177729 | 40165318 40165319 |
40165313 | ||
PLC-2700 Series: Digital model | |||||
PLC-2710V-7 | 40221394 | 40193646 | 40193648 | 40165318 | 40199929 |
PLC-2760V-7 | 40221395 | 40165318 40165319 |
* 4. If not purchased as a set, purchase one cable for each sewing machine. (No matter which one of 3, 4, and 5 is used, one 6 is required.)
* The handwheel cover for ES is the same blue one as for V.
* A cable (part No.: 40175951) is required when using the sensor cover (set, single item, or combination of single items) in combination with the skip stitch / bobbin thread remaining detector. Not required for V series.