Mitsubishi Electric LE-40MT Series User manual

Transition from LE-40MT Series, LE-30CTN(A) to
LE7-40GU-L Handbook

1
SAFETY PRECAUTIONS
(Read these precautions before use.)
Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full
attention to safety in order to handle the product correctly.
This manual classifies the safety precautions into two categories: [ WARNING] and [ CAUTION].
Depending on the circumstances, procedures indicated by [ CAUTION] may also cause severe injury.
It is important to follow all precautions for personal safety.
Store this manual in a safe place so that it can be read whenever necessary. Always forward it to the end user.
[DESIGN PRECAUTIONS]
[DESIGN PRECAUTIONS]
WARNING
●Make sure to set up the following safety circuits outside the tension controller to ensure safe system
operation even during external power supply problems or tension controller failure. Otherwise,
malfunctions may cause serious accidents.
- Note that when an error occurs in a relay or transistor of an output circuit, the output might stay on
or off. For output signals that may lead to serious accidents, external circuits and mechanisms
should be designed to ensure safe machinery operation in such a case.
●Most importantly, set up the following: an emergency stop circuit, a protection circuit, an interlock
circuit for opposite movements (such as normal vs. reverse rotation), and an interlock circuit (to
prevent damage to the equipment at the upper and lower torque limits and upper and lower tension
limits).
●In an output circuit, when a load current exceeding the current rating or an overcurrent caused by a
load short-circuit flows for a long time, it may cause smoke and fire. To prevent this, configure an
external safety circuit, such as a fuse.
●For the operating status of each station after a communication failure of the network, refer to relevant
manuals for the network. Incorrect output or malfunction may result in an accident.
CAUTION
●If a power failure or an abnormal voltage drop occurs, the tension controller stops, and output is
turned off.
WARNING Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

2
[INSTALLATION PRECAUTIONS]
[INSTALLATION PRECAUTIONS]
[POWER SUPPLY WIRING PRECAUTIONS]
WARNING
●Make sure to cut off all phases of the power supply externally before attempting installation or wiring
work. Failure to do so may cause electric shock or damage to the product.
●Use the product within the generic environment specifications described in LE7-40GU-L
APPLICATION MANUAL (SH-170022ENG). Never use the product in areas with excessive dust, oily
smoke, conductive dusts, corrosive gas (salt air, Cl2, H2S, SO2or NO2), flammable gas, vibration or
impacts, or expose it to high temperature, condensation, or rain and wind. If the product is used in
such conditions, electric shock, fire, malfunctions, deterioration or damage may occur.
CAUTION
●Do not touch the conductive parts of the product directly. Doing so may cause device failures or
malfunctions.
●Always wear an anti-static wristband and discharge static electricity from the body before handling the
extension option. Failure to do so may cause the extension option to fail or malfunction.
●When drilling screw holes or wiring, make sure that cutting and wiring debris do not enter the
ventilation slits of the tension controller. Failure to do so may cause fire, equipment failures or
malfunctions.
●For the product supplied together with a dust proof sheet, the sheet should be affixed to the ventilation
slits before installation and wiring work to prevent foreign objects such as cutting and wiring debris.
However, when the installation work is completed, make sure to remove the sheet to provide
adequate ventilation.
●Install the product on a flat surface. If the mounting surface is rough, undue force will be applied to the
PC board, thereby causing nonconformities.
●Install the product securely using mounting screws or fixtures.
●Connect the extension options securely to their designated connectors. Loose connections may
cause malfunctions.
●Make sure to affix the extension option with tapping screws. Tightening torque should follow the
specifications in the manual. If the screws are tightened outside of the specified torque range, poor
connections may cause malfunctions.
●Work carefully when using a screwdriver such as installation of the product. Failure to do so may
cause damage to the product or accidents.
●Connect the input/output cables and power cable securely to their designated connectors. Loose
connections may cause malfunctions.
●Turn off the power to the tension controller before attaching or detaching the optional devices. Failure
to do so may cause equipment failures or malfunctions.
CAUTION
●Use an online UPS (uninterruptible power supply) with a power distortion factor of 5% or less or a line
interactive UPS. If a standby UPS is used, use a Mitsubishi low-capacity UPS "FREQUPS FW-F
series" (hereinafter FW-F series). (Example: FWF10-0.3K/0.5K)

3
[WIRING PRECAUTIONS]
[WIRING PRECAUTIONS]
[STARTUP AND MAINTENANCE PRECAUTIONS]
WARNING
●Make sure to cut off all phases of the power supply externally before attempting installation or wiring
work. Failure to do so may cause electric shock or damage to the product.
●Make sure to properly wire to the terminal block (Spring clamp type) in accordance with the following
precautions. Failure to do so may cause electric shock, equipment failures, a short-circuit, wire
breakage, malfunctions, or damage to the product.
- The disposal size of the cable end should follow the dimensions described in the manual.
- Twist the ends of stranded wires and make sure that there are no loose wires.
- Do not solder-plate the electric wire ends.
- Do not connect more than the specified number of wires or electric wires of unspecified size.
- Affix the electric wires so that neither the terminal block nor the connected parts are directly
stressed.
CAUTION
●Perform class D grounding (grounding resistance: 100 or less) of the grounding terminal on the
tension controller with a wire 0.2 to 1.5 mm2. Do not use common grounding with heavy electrical
systems.
●Connect the power supply wiring to the dedicated terminals described in this manual. If an AC power
supply is connected to a DC input/output terminal or DC power supply terminal, the tension controller
will burn out.
●Do not wire vacant terminals externally. Doing so may damage the product.
●Install module so that excessive force will not be applied to terminal blocks, power wire, or
communication cables. Failure to do so may result in wire damage/breakage or tension controller
failure.
●Make sure to observe the following precautions in order to prevent any damage to the machinery or
accidents due to malfunction of the tension controller due to the effects of noise.
- Do not bundle the power line and communication cables together with or lay them close to the
main circuit, high-voltage line, load line or power line. As a guideline, lay the power line, control
line and communication cables at least 100 mm away from the main circuit, high-voltage line, load
line or power line.
- Ground the shield of the shielded wire or shielded cable at one point on the tension controller.
However, do not use common grounding with heavy electrical systems.
- Ground the shield of the analog input/output cable at one point on the signal receiving side.
However, do not use common grounding with heavy electrical systems.
WARNING
●Do not touch any terminal while the tension controller's power is on. Doing so may cause electric
shock or malfunctions.
●Before cleaning, cut off all phases of the power supply externally. Failure to do so in the power ON
status may cause electric shock.

4
[STARTUP AND MAINTENANCE PRECAUTIONS]
[DISPOSAL PRECAUTIONS]
[TRANSPORTATION PRECAUTIONS]
CAUTION
●Do not disassemble or modify the product. Doing so may cause fire, equipment failures, or
malfunctions.
*For repair, contact your local Mitsubishi Electric representative.
●Turn off the power to the tension controller before connecting or disconnecting any extension cable.
Failure to do so may cause equipment failures or malfunctions.
●Turn off the power to the tension controller before attaching or detaching the optional devices. Failure
to do so may cause equipment failures, or malfunctions.
CAUTION
●Please contact a certified electronic waste disposal company for the environmentally safe recycling
and disposal of your device.
CAUTION
●The tension controller is a precision instrument. During transportation, avoid impacts larger than those
specified in the general specifications described in LE7-40GU-L APPLICATION MANUAL (SH-
170022ENG) by using dedicated packaging boxes and shock-absorbing palettes. Failure to do so
may cause failures in the tension controller. After transportation, verify operation of the tension
controller and check for damage of the mounting part, etc.
●When fumigants that contain halogen materials such as fluorine, chlorine, bromine, and iodine are
used for disinfecting and protecting wooden packaging from insects, they cause malfunction when
entering our products. Please take necessary precautions to ensure that remaining materials from
fumigant do not enter our products, or treat packaging with methods other than fumigation (heat
method). Additionally, disinfect and protect wood from insects before packing products.

5
INTRODUCTION
Thank you very much for purchasing the tension controller.
Before using, read this document, and thoroughly understand the functions and performance of the tension controller to use it
correctly.
Regarding use of this product
• This product has been manufactured as a general-purpose part for general industries, and has not been designed or
manufactured to be incorporated in a device or system used in purposes related to human life.
• Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine or passenger
movement vehicles, consult Mitsubishi Electric.
• This product has been manufactured under strict quality control. However when installing the product where major
accidents or losses could occur if the product fails, install appropriate backup or failsafe functions in the system.
Note
• If in doubt at any stage during the installation of the product, always consult a professional electrical engineer who is
qualified and trained in the local and national standards. If in doubt about the operation or use, please consult the nearest
Mitsubishi Electric representative.
• Since the examples indicated by this manual, technical bulletin, catalog, etc. are used as a reference, please use it after
confirming the function and safety of the equipment and system. Mitsubishi Electric will accept no responsibility for actual
use of the product based on these illustrative examples.
• This manual content, specification etc. may be changed, without a notice, for improvement.
• The information in this manual has been carefully checked and is believed to be accurate; however, if you notice a doubtful
point, an error, etc., please contact the nearest Mitsubishi Electric representative. When doing so, please provide the
manual number given at the end of this manual.

6
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CHAPTER 1 OUTLINE 9
1.1 Request to Customers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 Recommended Alternative Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L 10
2.1 Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Comparison of I/O Terminal Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Comparison Between Optional Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CHAPTER 3 TRANSITION FROM LE-30CTN(A) TO LE7-40GU-L 16
3.1 Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.2 Comparison of I/O Terminal Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CHAPTER 4 DIFFERENCES IN SEQUENCE OPERATION 20
4.1 Stall Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Differences in operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Output Gain Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
CHAPTER 5 DIFFERENCES IN FLOW AT MACHINE STARTUP ADJUSTMENT 23
5.1 Differences in Operation Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.2 Difference in Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Protection Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

7
CONTENTS

8
RELEVANT MANUALS
TERMS
Unless otherwise specified, this manual uses the following terms.
Manual name <Manual number> Description
LE7-40GU-L APPLICATION MANUAL
<SH-170022ENG>
How to handle, install and set the tension controller LE7-40GU-L
LE-40MTA-E INSTRUCTION MANUAL
<JZ990D30601>
How to handle, install and set the tension controller LE-40MTA-E
LE-40MTB-E INSTRUCTION MANUAL
<JZ990D30801>
How to handle, install and set the tension controller LE-40MTB-E
LE-30CTN APPLICATION MANUAL
<JZ990D33401>
How to handle, install and set the tension controller LE-30CTN
LE-30CTA APPLICATION MANUAL
<JZ990D33001>
How to handle, install and set the tension controller LE-30CTA
LE7-DCA APPLICATION MANUAL
<SH-081825ENG>
How to handle, install and set the reel diameter calculation option LE7-DCA
LE7-CCL APPLICATION MANUAL
<SH-081828ENG>
How to handle, install and set the network option LE7-CCL
LE-40MD INSTRUCTION MANUAL
<JZ990D41301>
How to handle, install and set the diameter calculation unit LE-40MD
LE7-ATT INSTRUCTION MANUAL
<IB-0800588>
How to handle and install the attachment LE7-ATT
Terms Description
Option Generic term for extension options, memory cassette
Extension options Generic term for reel diameter calculation option, network option
Reel diameter calculation option Generic term for the reel diameter calculation option LE7-DCA
Network option Generic term for the network option LE7-CCL
LE7-40GU-L Abbreviation for the tension controller LE7-40GU-L
LE7-DCA Abbreviation for the reel diameter calculation option LE7-DCA
LE7-CCL Abbreviation for the network option LE7-CCL
LE7-ATT Abbreviation for the attachment LE7-ATT
LE-40MTA(-E) Abbreviation for the tension controller LE-40MTA(-E)
LE-40MTB(-E) Abbreviation for the tension controller LE-40MTB(-E)
LE-40MD Abbreviation for the diameter calculation unit LE-40MD
LE-30CTN(A) Abbreviation for the tension controller LE-30CTN(A)

1 OUTLINE
1.1 Request to Customers 9
1
1OUTLINE
1.1 Request to Customers
Selection other than the recommended models may be possible depending on the usage situation of your system. Please
select a model after checking the specifications and scope of your existing system.
1.2 Recommended Alternative Models
The recommended alternative models are listed below.
Refer to the following.
LE7-40GU-L APPLICATION MANUAL
LE7-DCA APPLICATION MANUAL
LE7-CCL APPLICATION MANUAL
LE7-ATT INSTRUCTION MANUAL
Model currently used Recommended alternative
model
Panel cut compatibility Attachment used
LE-40MTA, B(-E) LE7-40GU-L None LE7-ATT
LE-40MTB(-E)+LE-40MD LE7-40GU-L+LE7-DCA
LE-40MTB(-E)+FX2N-32CCL LE7-40GU-L+LE7-CCL
LE-40MTB(-E)+LE-40MD+FX2N-32CCL LE7-40GU-L+LE7-DCA+LE7-CCL
LE-30CTN(A) LE7-40GU-L

10 2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.1 Differences
2TRANSITION FROM LE-40MTA, B(-E) TO LE7-
40GU-L
2.1 Differences
The differences between LE-40MTA, B(-E) and LE7-40GU-L are listed below.
Item name LE-40MTA(-E) LE-40MTB(-E) LE7-40GU-L
Outer dimensions 156(H)246(W)156.5(D) mm 156(H)246(W)156.5(D) mm 105(H)170(W)125(D) mm
Setting method Key Key+Dial Dial+Touch panel
LCD 202-line characters 202-line characters 320128 dots
Output for powder 4.0 A max. 4.0 A max. 2.7 A max.
Terminal block Screw type (fixed) Screw type (fixed) Spring clamp type (removable type: signal terminal)
Resolution of manual setting Depends on the manual control 1% output unit 0.1% output unit
Optional function None • Reel diameter calculation
module (LE-40MD)
• CC-Link block (FX2N-32CCL)
• Reel diameter calculation option (LE7-DCA)
• Network option (LE7-CCL)
Control method Feedback control Feedback control • Feedback control
• Open-loop control
• Feed Forward/Feedback Combined Control
Corresponding tension detector • LX-TD tension detector
• LX7-F tension detector
• LX-TD tension detector
• LX7-F tension detector
• LX-TD tension detector
• LX7-F tension detector
• Strain gauge sensor (2 mV/V)
Tension detector polarity
automatic judgment function
None None Yes
Tension detector real voltage
monitor
None None Yes
Two-reel switching function
(when option is installed)
None • Predrive control
• Two-reel switching support
output (separate power
amplifier required)
• Predrive control
• Two-reel switching support output
Communication function None • RS-485 communication
- Parallel link (FX2N series)
• CC-Link (option)
• Ethernet communication
- CC-Link IE Field Network Basic
- SLMP
- MODBUS/TCP (Slave)
• RS-485 communication
- N:N Network
- MODBUS/RTU and ASCII (Slave)
• CC-Link (option)
Contact input sink/source
switching
Sink input Sink input Sink/source input
Zero tension detection output Relay output Relay output Open collector output

2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.2 Comparison of I/O Terminal Blocks 11
2
2.2 Comparison of I/O Terminal Blocks
Perform wiring by referring to the comparison between the I/O terminal blocks of LE-40MTA, B(-E) and LE7-40GU-L.
For the wiring method, refer to the following.
LE7-40GU-L APPLICATION MANUAL
Item name LE-40MTA, B(-E) LE7-40GU-L
Function Terminal Specifications Terminal Specifications
Power
supply
Input PSL 100 to 240 V AC (-15% to +10%) 50/60 Hz
Power consumption 400 VA, built-in power fuse
250 V, 8 A
Rush current 30 A 300 ms, momentary power
failure permissible time 10 ms
L 100 to 240 V AC (-15 to +10%) 50/60 Hz
Maximum apparent power 200 VA, built-in power
fuse 250 V, 8 A2
Rush current 45 A 1 ms, momentary power failure
permissible time 10 ms
PSN N
Output RED Tension detector power
5 V DC, 40 mA or less
Up to two LX tension detectors can be connected.
RED Tension detector power
• The rated voltage: 5 V DC
• Voltage range: 4.75 to 5.25 V DC
• Current value: 40 mA or less
• Up to two LX tension detectors can be
connected.
BLK BLK
+5V Service power supply for external control
Output voltage: 5 0.2 V DC 5 V DC 50 mA or less
5V Potentiometer power
• The rated voltage: 5 V DC
• Voltage range: 4.75 to 5.25 V DC
• Current value: 20 mA or less
• Available volume: 0.5 to 2.0 k
AIC AIC
 24V Contact input power
• The rated voltage: 24 V DC
• Voltage range: 20.4 to 28.8 V DC
• Current value: 55 mA or less
 0V
Control Output P Tension control output for 24 V DC series powder
clutch/brake
0 to 24 V DC 4 A or less
PP Tension control output for 24 V DC series powder
clutch/brake
• 0 to 24 V DC
•2.7Aorless
• PWM output
NPN
S1 Auxiliary power supply
12 V DC 2 A 10 seconds rated
S1 Two-reel's switching new reel output for 24 V DC
powder clutch/brake
• 0 to 24 V DC
• The total current value with PP-PN output is 2.7
A or less.
• PWM output
S2 S2
SA Control output signal
0 to 5 V DC when "powder" is selected
0 to 5 V DC when "servomotor" is selected
Load resistance: 1 kor more
SA Tension control output for motor
• Output range switchable
(1) -5 to +5 V DC resolution: Approx. 358 V
(2) -8 to +8 V DC resolution: Approx. 358 V
(3) -10 to +10 V DC resolution: Approx. 358 V
(4) -2.7 to +2.7 V DC resolution: Approx. 358 V
(5) 0 to 5 V DC resolution: Approx. 358 V
(6) 0 to 8 V DC resolution: Approx. 358 V
(7) 0 to 10 V DC resolution: Approx. 358 V
(8) 0 to 2.7 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
SN SN
NRO New-reel preset output (enabled only when multi-
reel mode is selected)
0 to 5 V DC
Load resistance: 1 kor more
NRO Two-reel's switching new reel output for motor
• Output range switchable
(1) -5 to +5 V DC resolution: Approx. 358 V
(2) -8 to +8 V DC resolution: Approx. 358 V
(3) -10 to +10 V DC resolution: Approx. 358 V
(4) -2.7 to +2.7 V DC resolution: Approx. 358 V
(5) 0 to 5 V DC resolution: Approx. 358 V
(6) 0 to 8 V DC resolution: Approx. 358 V
(7) 0 to 10 V DC resolution: Approx. 358 V
(8) 0 to 2.7 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
AOC SN
EAP Tension control signal output for electro-pneumatic
regulator
4 to 20 mA DC or less
Load resistance: 470 or less
EAP Tension control output for electro-pneumatic
regulator
• 0 to 20 mA DC resolution: Approx. 1.43 A
• Load resistance: 500 or less
EAN EAN

12 2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.2 Comparison of I/O Terminal Blocks
Terminal specifications
Since the terminal type changes from a screw type terminal to a spring clamp type terminal, stranded wires and bar type crimp
terminals are used for wiring. Therefore, when using a round terminal and Y terminal, terminal processing of the wiring is
necessary.
Tension
detector
Input GRL Left Tension detector input
Connect the lead wires GR=green (blue) and
WH=white.
Use the parameter to specify the number of
detectors to be used: one or two.
The connection varies depending on the
compression/tensile load. When one detector is
used, it is necessary to make a short circuit
between GRL and WHL.
GRL Left Tension detector input
• Input range switchable
(1) -150 to +150 mV DC (LX tension detector)
resolution: Approx. 7.90 V
(2) -15 to -15 mV DC (strain gauge) resolution:
Approx. 0.790 V
When only the detector on one side is used, it is
necessary to make a short circuit between GR and
WH on the other side.
The compression/tensile load is determined
automatically.
WHL WHL
GRR Right GRR Right
WHR WHR
SG For shield connection SLD For shield connection
Analog Input AI1 External tension setting: 0 to full scale tension at 0
to 5 V DC
Internal resistance: 100 k
Recommended potentiometer (control): 5 V 10 k
AI1 Selection from tension setting, stall, taper ratio,
new-reel preset, manual, tension input, and reel
• Input range switchable
(1) 0 to 5 V DC resolution: Approx. 193 V
(2) 0 to 10 V DC resolution: Approx. 193 V
• Input resistance 38 k
AI2 Selection from reel diameter, stall, new-reel taper
ratio setting, and external tension
Recommended potentiometer (control) 5 V 10 k
AI2
AI3 AI3
AIC Analog input common AIC Analog input common
Output TMO Output for tension monitor
Filter adjustable by parameter
0 to 5 V DC
Load resistance: 1 kor more
AO1 Selection from tension monitor, reel diameter
monitor, tension setting monitor, A-reel shaft
rotation speed output, and B-reel shaft rotation
speed output selection
• Output range switchable
(1) 0 to 5 V DC resolution: Approx. 358 V
(2) 0 to 10 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
AO2
AOC Analog output common AOC Analog output common
Contact Input MC1 Operation/stop: ON=automatic operation,
OFF=stop
DI1 Selection from operation/stop, control output OFF/
ON, stall memory, inching ON/OFF, constant
tension ON/OFF, gain 1 ON/OFF, gain 2 ON/OFF,
auto/manual, reel change ON/OFF, cut torque ON/
OFF, and alarm reset ON/OFF
• Input signal voltage 24 to 28.8 V DC
• ON current about 5 mA
• Sink/source input
MC2 Reel change signal: OFF=A reel, ON=B reel DI2
MC3 Gain 1 operation: Gain 1 enabled during ON DI3
MC4 Stall memory reset: About 0.5 second one-shot
input
DI4
MC5 Assigned by parameter settings and used.
• Gain 2: Gain 2 enabled during ON
• Inching: Output lower limit restriction, stall
memory update stop
• OUT remote: Control output ON during ON
• Cut torque: During ON, output lower limit
restriction, cutter
DI5
MC6 DI6
MCC Contact input common 0V In sink input mode, 0 V becomes contact input
common.
 S/S In sink input mode, this terminal connects to 24 V.
Output ZT • Zero tension detection output: Set value 0 to
1999 N (199.910 N)
• Output ON at tension below the set value:
Always OFF when the set value is 0 (however,
the output is ON regardless of the set value and
tension when the watchdog timer is operating).
• Relay output (250 V AC 0.5 A or 30 V DC 0.5 A)
DO1 Selection from no function, tension lower limit
detection, tension upper limit detection, tension out
of range detection, and alarm occurrence detection
• Open collector output (30 V DC, 0.1 A or less)
DO2
ZT DOC Contact output common
Item name LE-40MTA, B(-E) LE7-40GU-L
Function Terminal Specifications Terminal Specifications

2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.2 Comparison of I/O Terminal Blocks 13
2
Tension control output for powder clutch/brake
The rated current of LE-40MTA and LE-40MTB(-E) is 4.0 A, and the rated current of LE7-40GU-L is 2.7 A.
When the powder clutch whose rated current exceed 2.7 A is used, an amplifier for clutch (separately sold) is necessary.
Control output signal
When "powder" has been selected with the LE-40MTA, B(- E), set the control output mode to 0 to 5 V. When "servomotor" has
been selected, set the control output mode to -5 to +5 V DC.
Tension detector input
The tension detector that has been used with the LE-40MTA, B(- E) can be used as is. A strain gauge type load sensor can
also be used with the LE7-40GU-L.
When substituting for the LE-40MTA, B(-E), it is necessary to change the [white] - [green (blue)] wiring if the tension detector
has been used in the pulling direction. When substituting for the LE7-40GU-L, however, it is unnecessary to change the wiring
and operation is enabled even if wiring is made to the terminal of the color indicated by the terminal block.
Also, when using one tension detector with the LE-40MTA, B(-E), the tension detector is connected between the right input
[WHR] and [GRR] and the line between [WHL] and [GRL] is shorted. With the LE7-40GU-L, however, the detector is
connected to the input of either left or right tension detector and the opposite input is shorted and used. When a single tension
detector is used, left and right imbalance or small load alarm will be generated during span adjustment, but ignore it and use
the detector.
Analog input
When it is used for general-purpose input, function assignment is required (same as the AI2 and AI3 terminals of the LE-
40MTA, B(-E). Be aware that even if the LE-40MT mode is set, the external tension setting (the function of the AI1 terminal of
LE-40MTA, B(-E)) will not be automatically assigned.
For details of function assignment in each operation mode, refer to the following.
LE7-40GU-L APPLICATION MANUAL
Analog output
When LE-40MT mode is selected in the initial setting mode, the same voltage range and function assignment as the LE-
40MTA, B(-E) are used.
However, when it is used in operation mode 8, the A-reel shaft rotational speed output and the B-reel shaft rotational speed
output are assigned to the AO1 and AO2 terminals, respectively.
For details of function assignment in each operation mode, refer to the following.
LE7-40GU-L APPLICATION MANUAL
Contact input
When LE-40MT mode is selected in the initial setting mode, the same input as the LE-40MTA, B(-E) can be used.
Since LE7-40GU-L has the sink/source switching function, it is recommended to use sink wiring when replacing from LE-
40MTA, B(-E). Note that stall memory and output gain operation are different.
Page 20 DIFFERENCES IN SEQUENCE OPERATION
For details of function assignment in each operation mode, refer to the following.
LE7-40GU-L APPLICATION MANUAL
Contact output
When LE-40MT mode is selected in the initial setting mode, the same output as the LE-40MTA, B(-E) can be used.
The LE-40MTA uses a relay output, but the LE7-40GU-L has changed to an open collector transistor output. When ZT (zero
tension detection output) is used, pay attention to the power supply (AC, DC) and current direction after replacing to the LE7-
40GU-L.
For details of function assignment in each operation mode, refer to the following.
LE7-40GU-L APPLICATION MANUAL

14 2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.3 Comparison Between Optional Terminal Blocks
2.3 Comparison Between Optional Terminal Blocks
Perform wiring by referring to the comparison between the I/O terminal blocks of LE-40MD and LE7-DCA.
For the wiring method, refer to the following.
LE7-40GU-L APPLICATION MANUAL
LE7-DCA APPLICATION MANUAL
*1 In operation mode 4, 6, or 8
*2 In operation mode 8
Item name LE-40MTB(-E) (LE-40MD) LE7-40GU-L (LE7-DCA)
Function LE-40MD Function LE7-40GU-
L
LE7-DCA Function
Power supply Output  24V Contact input power
0 V 
+24V DC Sensor power supply 24
V DC
12V DC Power terminal for sensor, for pulse input
COM 0V DC 0 V terminal
For sensor Input SPL Measure pulse SPL Measure pulse input terminal
SPA Reel shaft pulse (reel A) SPRA Reel shaft pulse input (reel A) terminal
SPB Reel shaft pulse (reel B) SPRB Reel shaft pulse input (reel B) terminal
COM Common 0V DC In sink input mode, the 0 V DC becomes
common.
 SPS/S In sink input mode, connect to the 12 V terminal.
Shield SG Shield connection SLD Shield connection terminal
Contact Input BWD Reverse rotation/Normal
rotation
BWD Reverse rotation/Normal rotation
DRST Reel diameter reset DRST Reel diameter reset
LRST Measurement length
reset
LRST Measurement length reset
MEM Memory hold MEM Memory hold
PDRV Predrive PDRV Predrive
RUN Running/Stopped DI1*1 Interlocks with the operation/stop of the main
unit.
RCH Reel change DI2*1 Interlocks with the reel change of the main unit.
COM Common 0 V In sink input mode, the 0 V terminal becomes
common.
 S/S In sink input mode, connect to the 24 V terminal.
Output Y1 Reel diameter
(measurement length) 1
Y1 Reel diameter/Measurement length/remaining
length detection 1 to 3
Y2 Reel diameter
(measurement length) 2
Y2 
Y3 Reel diameter
(measurement length) 3
Y3 
SNCR Peripheral speed
synchronization
SNCR Peripheral speed synchronization detection
COM1 Common DOC Contact output common
Analog Output ROTA A-reel rotational speed AO1*2 Selection from tension monitor, reel diameter
monitor, tension setting monitor, A-reel shaft
rotation speed output, and B-reel shaft rotation
speed output selection
• Output range switchable
(1) 0 to 5 V DC resolution: Approx. 358 V
(2) 0 to 10 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
ROTB B-reel rotational speed AO2*2 
DOUT Reel diameter signal
output

AOC Analog output common AOC Analog output common

2 TRANSITION FROM LE-40MTA, B(-E) TO LE7-40GU-L
2.3 Comparison Between Optional Terminal Blocks 15
2
Power output
While the sensor power supply output of the LE-40MD is 24 V DC, the specification has been changed to 12 V DC for LE7-
DCA. Since the power supply voltage specifications of many rotary encoders feature dual system of 24 V DC and 12 V DC,
the sensor can often be used as it is after replacement. However, if a 24 V DC only product is used, the rotary encoder needs
to be replaced to one which can operate at 12 V DC.
Sensor input
Although the specifications of the sensor input have not been changed from both the major roll sensor and reel shaft rotation
detection sensor, the common terminal has been changed from COM to 0 V and it is necessary to connect SPS/S to 12 V.
Contact input
The contact input terminal of the LE7-DCA is provided on the LE7-40GU-L unit.
In LE-40MD, [RUN]: operation/stop and [RCH]: reel change inputs need to be connected to [MC1]: operation/stop and [MC2]:
reel change of LE-40MTB. In LE-40GU, it can be used only by wiring to the operation/stop and reel change signal input of the
main unit.
Contact output
While the LE-40MD uses a relay output, the LE7-40GU-L has been changed to an open collector transistor output. When
contact output (reel diameter/measurement length/remaining length detection output, peripheral speed synchronization
detection output) is used, pay attention to the power supply (AC, DC) and current direction after replacing to the LE7-40GU-L.
Analog output
The analog output related to the LE7-DCA uses the analog output terminal on the LE7-40GU-L unit.
When LE-40MT mode is selected in the initial setting mode, the same voltage range and function assignment as the LE-
40MTA, B(-E) are used. However, when it is used in operation mode 8, the A-reel shaft rotational speed output and the B-reel
shaft rotational speed output are assigned to the AO1 and AO2 terminals, respectively.

16 3 TRANSITION FROM LE-30CTN(A) TO LE7-40GU-L
3.1 Differences
3TRANSITION FROM LE-30CTN(A) TO LE7-
40GU-L
3.1 Differences
The differences between LE-30CTN(A) and LE7-40GU-L are listed below.
Item name LE-30CTN(A) LE7-40GU-L
Outer dimensions 156246156.5 mm 105170125 mm
Setting method Dial Dial+Touch panel
LCD 12864 dot 320128 dot
Output for powder 3.0 A max. 2.7 A max.
Terminal block Screw type (fixed) Spring clamp type (removable type: signal terminal)
Resolution of manual setting 1% output unit 0.1% output unit
Optional function None • Reel diameter calculation option (LE7-DCA)
• Network option (LE7-CCL)
Control method Feedback control • Feedback control
• Open-loop control
• Feed Forward/Feedback Combined Control
Corresponding tension detector • LX-TD tension detector
• LX7-F tension detector
• LX-TD tension detector
• LX7-F tension detector
• Strain gauge sensor (2 mV/V)
Tension detector polarity automatic
judgment function
Yes Yes
Tension detector real voltage
monitor
None Yes
Two-reel switching function (when
option is installed)
None • Predrive control
• Two-reel switching support output
Communication function None • Ethernet communication
- CC-Link IE Field Network Basic
-SLMP
- MODBUS/TCP (Slave)
• RS-485 communication
- N:N Network
- MODBUS/RTU and ASCII (Slave)
• CC-Link (option)
Contact input sink/source
switching
None Yes

3 TRANSITION FROM LE-30CTN(A) TO LE7-40GU-L
3.2 Comparison of I/O Terminal Blocks 17
3
3.2 Comparison of I/O Terminal Blocks
Perform wiring by referring to the comparison between the I/O terminal blocks of LE-30CTN(A) and LE7-40GU-L.
For the wiring method, refer to the following.
LE7-40GU-L APPLICATION MANUAL
Item name LE-30CTN(A) LE7-40GU-L
Function Terminal Specifications Terminal Specifications
Power
supply
Input PSL 100 to 240 V AC (-15% to +10%) 50/60 Hz
Power consumption 400 VA, built-in power fuse
250 V, T5AH2
Rush current 30 A 300 ms, momentary power
failure permissible time 10 ms
L 100 to 240 V AC (-15% to +10%) 50/60 Hz
Maximum apparent power 200 VA, built-in power
fuse 250 V, 8 A2
Rush current 45 A 1 ms, momentary power failure
permissible time 10 ms
PSN N
Output RED Tension detector power
5 V DC, 40 mA or less
Up to two LX tension detectors can be connected.
RED Tension detector power
• The rated voltage: 5 V DC
• Voltage range: 4.75 to 5.25 V DC
• Current value: 40 mA or less
• Up to two LX tension detectors can be
connected.
BLK BLK
+5V Service power supply for external control
5 V DC, 50 mA or less
5V Potentiometer power
• The rated voltage: 5 V DC
• Voltage range: 4.75 to 5.25 V DC
• Current value: 20 mA or less
• Available volume: 0.5 to 2.0 k
AIC AIC
 24V Contact input power
• The rated voltage: 24 V DC
• Voltage range: 20.4 to 28.8 V DC
• Current value: 55 mA or less
 0V
Control Output PP Tension control output for 24 V DC series powder
clutch/brake
0 to 24 V DC 3 A or less
PP Tension control output for 24 V DC series powder
clutch/brake
• 0 to 24 V DC
•2.7Aorless
• PWM output
PN PN
 S1 Two-reel's switching new reel output for 24 V DC
powder clutch/brake
• 0 to 24 V DC
• The total current value with PP-PN output is 2.7
A or less.
• PWM output
 S2
TOUT Control output 0 to 5 V DC
For power amplifier and AC servo amplifier
SA Tension control output for motor
• Output range switchable
(1) -5 to +5 V DC resolution: Approx. 358 V
(2) -8 to +8 V DC resolution: Approx. 358 V
(3) -10 to +10 V DC resolution: Approx. 358 V
(4) -2.7 to +2.7 V DC resolution: Approx. 358 V
(5) 0 to 5 V DC resolution: Approx. 358 V
(6) 0 to 8 V DC resolution: Approx. 358 V
(7) 0 to 10 V DC resolution: Approx. 358 V
(8) 0 to 2.7 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
AOC Analog output common SN
 NRO Two-reel's switching new reel output for motor
• Output range switchable
(1) -5 to +5 V DC resolution: Approx. 358 V
(2) -8 to +8 V DC resolution: Approx. 358 V
(3) -10 to +10 V DC resolution: Approx. 358 V
(4) -2.7 to +2.7 V DC resolution: Approx. 358 V
(5) 0 to 5 V DC resolution: Approx. 358 V
(6) 0 to 8 V DC resolution: Approx. 358 V
(7) 0 to 10 V DC resolution: Approx. 358 V
(8) 0 to 2.7 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
 SN
 EAP Tension control output for electro-pneumatic
regulator
• 0 to 20 mA DC resolution: Approx. 1.43 A
• Load resistance: 500 or less
 EAN

18 3 TRANSITION FROM LE-30CTN(A) TO LE7-40GU-L
3.2 Comparison of I/O Terminal Blocks
Terminal specifications
Since the terminal type changes from a screw type terminal to a spring clamp type terminal, stranded wires and bar type crimp
terminals are used for wiring. Therefore, when using a round terminal and Y terminal, terminal processing of the wiring is
necessary.
Tension control output for powder clutch/brake
After replacement from LE-30CTN(A), the same function as before replacement can be used by selecting the LE-30CT mode
in the initial setting (operation mode selection).
Control output signal
After replacement from the control output of the LE-30CTN(A), set the motor tension control output to 0 to 5 V and use it. For
LE7-40GU-L, it can also be set to output as for motor control.
Tension
detector
Input GRL Left Connect the lead wires GR=green (blue) and
WH=white of the tension detector inputs.
When only the detector on one side is used, it is
necessary to make a short circuit between GR and
WH on the other side.
The compression/tensile load is determined
automatically.
GRL Left Tension detector input
• Input range switchable
(1) -150 to +150 mV DC (LX tension detector)
resolution: Approx. 7.90 V
(2) -15 to -15 mV DC (strain gauge) resolution:
Approx. 0.790 V
When only the detector on one side is used, it is
necessary to make a short circuit between GR and
WH on the other side.
The compression/tensile load is determined
automatically.
WHL WHL
GRR Right GRR Right
WHR WHR
SG For shield connection SLD For shield connection
Analog Input AI1 Select from the following functions.
Tension setting signal, reel diameter signal,
external tension signal, taper ratio setting signal,
manual setting signal 1, manual setting signal 2,
and voltage signal of 0 to 5 V DC or 10 k
potentiometer
AI1 Selection from tension setting, stall, taper ratio,
new-reel preset, manual, tension input, and reel
• Input range switchable
(1) 0 to 5 V DC resolution: Approx. 193 V
(2) 0 to 10 V DC resolution: Approx. 193 V
• Input resistance 38 k
AI2 AI2
AI3
AIC Analog input common AIC Analog input common
Output AO1 Output for tension monitor/tension setting monitor
0 to 5 V DC Function selection by DIP switch
AO1 Selection from tension monitor, reel diameter
monitor, tension setting monitor, A-reel shaft
rotation speed output, and B-reel shaft rotation
speed output selection
• Output range switchable
(1) 0 to 5 V DC resolution: Approx. 358 V
(2) 0 to 10 V DC resolution: Approx. 358 V
• Load resistance: 1 kor more
AO2
AOC Analog output common AOC Analog output common
Contact Input RUN Operation/stop: ON=automatic operation,
OFF=stop
DI1 Selection from operation/stop, control output OFF/
ON, stall memory, inching ON/OFF, constant
tension ON/OFF, gain 1 ON/OFF, gain 2 ON/OFF,
auto/manual, reel change ON/OFF, cut torque ON/
OFF, and alarm reset ON/OFF
• Input signal voltage 24 to 28.8 V DC
• ON current about 5 mA
• Sink/source input
MI1 Select from the following functions.
Output memory, output gain 1, output gain 2,
output ON-OFF, manual output 1, and manual
output 2
DI2
MI2 DI3
MI3 DI4
 DI5
 DI6
MIC Contact input common 0V In sink input mode, the 0 V terminal becomes
common.
 S/S In sink input mode, connect to the 24 V terminal.
Output ZT • Zero tension detection output: Set value 0 to
2000N (N, 10 N)
• Output ON with tension below the set value:
Always OFF when 0 is set.
• Relay output (250 V AC 0.5 A or 30 V DC 0.5 A)
DO1 Selection from no function, tension lower limit
detection, tension upper limit detection, tension out
of range detection, and alarm occurrence detection
• Open collector output (30 V DC, 0.1 A or less)
DO2
ZT DOC Contact output common
Item name LE-30CTN(A) LE7-40GU-L
Function Terminal Specifications Terminal Specifications