INSTRUCTION MANUAL
MULTICHANNEL TENSION METER

Model : MSM
Detection card TCH-770

EIKO SOKKI CO., LTD.

SM-MSM-TCH7-B1
ISSUED : APR 15th, 20221

Precautions for use
Thank you for purchasing our product.
Please note the following points when installing and using.
⑴ Be sure to use the power supply voltage within the specified range.
In particular, it is very dangerous to connect a higher voltage than
the specification, as it may cause ignition.
Be sure to check the power supply voltage when wiring.
⑵ Connect the power supply to the specified terminal.
If connected incorrectly, this unit may malfunction.
⑶ For models with a ground terminal, be sure to use class D grounding(formerly class 3 grounding).
If you do not ground the wire, you may get an electric shock just by
touching the case.
⑷ Wiring work should be done by an electrical work specialist.
⑸ It cannot be used in explosion-proof areas except for models
that are specified as explosion-proof.
⑹

mark is affixed to the power connection part of this unit.
If you touch it while the power is on, you will get an electric shock,so be careful not to touch it.

⑺ Do not disassemble the unit unnecessarily as it may cause electric shock.
⑻ Be careful not to let flammable materials, water, metal, etc. get inside
this unit, as this may cause malfunction.
⑼ Install a safety device when applying to a machine where serious loss ofhuman life or equipment is expected due to the failure of this product.
⑽ If you notice any abnormalities such as strange smells or smoke
coming from the unit, turn off the power immediately and contact
our service department.

EIKO SOKKI CO., LTD.
Osaka Main Office

1-18-27 Minamihorie, Nishi-ku, Osaka-shi, Osaka-hu 550-0015
Tel: +81 -6-6533-1801 Fax: +81 -6-6538-3278

Tokyo Sales Office

Aqua Kanda Building 7F, 1-28 Kandasudacho, Chiyoda-ku, Tokyo 101-0041

Tel: +81 -3-5256-0055

Matsumoto Factory
Matsumoto Rinku Factory

Fax: +81 -3-5256-0056

5652-41 Sasaga, Matsumoto, Nagano 399-0033
Tel: +81 -263-25-7155 Fax: +81 -263-27-3641
4010-14 Minaminishiara, Wada, Matsumoto, Nagano 390-1242
Tel: +81 -263-40-2211 Fax: +81 -263-40-2233

2

MULTICHANNEL TENSION METER
Detection card＊＊

Model :MSM

TCH-770

INDEX ＊＊

INDEX

・・・・・・・・・・・・・・P3

１．CONSTRUCTION

・・・・・・・・・・・・・・P4

２．INSTALLATION

・・・・・・・・・・・・・・P5

３．WIRING

・・・・・・・・・・・・・・P6

４．NAMES AND FUNCTIONS OF EACH PART
(1) NAMES
・・・・・・・・・・・・・・P8(2) FUNCTIONS・・・・・・・・・・・・・・P9
５．EXPLANATION OF EACH PART
[1]Channel selector switch and internal meter[2]How to remove the terminal block and card
[3]Setting the DIP switches on the board[4]Setting the DIP switches for various settings[5]Setting the DIP switches for the filter setting

・・・・P12・・・・P13・・・・P14・・・・P15
・・・・P17

６．TENSION PICKUP CALIBRATION[1]Balance adjustment[2]Zero adjustment[3]Scale adjustmen[4]Output adjustment

・・・・・・・・・・・P18
・・・・・・・・・・・P18
・・・・・・・・・・・P19
・・・・・・・・・・・P20

７．MAINTENANCE

・・・・・・・・・・・P21

８．TROUBLE SHOOTING

・・・・・・・・・・・P22

９．SPECIFICATION & DIMENSIONS・・・・・・・・・・・P26

3

１．CONSTRUCTION
This is a multichannel tension meter that measures the tension of paper, cloth,rubber, film, fiber, electric wire, etc. while it is running.
（１）A maximum of 10 channels can be measured.
（２）Tension detection card TCH-770 is used by installing the required number ofcards in the slot of the device.
One type of detection card can be used for both coil-based (LA type)and strain gauge-based (LSP type) tension pickups.
（３）The TCH-770 can be installed together with the conventional detection cards
TCS-550HG, TCM-550, and TCM-660.
This manual describes the TCH-770. If a conventional model is installed,please refer to the instruction manual for that model.
（４）Each detector card is labeled with the channel number, the maximum scale ofthe detector, and the name of the location where the detector is used.
（５）Four systems of tension signals, Total 1, Total 2, Total 3 (or left only),
and Total 4 (or right only), are output from each detection card.
Each output can be selected as voltage or current output, and filter characteristics
can be selected as fast or slow response, so it can be used as control output or
output for analog indicator.
（６）If there is an available slot, a cover plate is installed and can be added later.
MODE
MODE

Detection card
TCH-770(orderd pieces)

Available slot
(Installed cover plate)

Exterior meter
Customer's
preparation

Exterior meter
Customer's preparation

Control output

Total
L side only
R side only

Control output

Total
L side only
R side only

Tension pickups(LSP Series)

Tension pickups(LA Series)

4

Power card
MSM-PS2(one piece)

Earth
AC INLET
100~240V
Free voltage

２．INSTALLATION
Install in a location to the following conditions.
That is free from…water drops, corrosive gases,
dirt dust and vibration, and sunbeam.
The mounting direction is in the vertical plane.
MODE
MODE

Up sideMounting
surfaceUp side5

３．WIRING（１）Notice for wiring
・A screw size of the terminal board is M4 for the power line and M3.5 forthe detection card.
Use the Y or ○ type pressure terminals.
・The ground terminal must be grounded.
・Use a shielded wire for the pickup cable.
The longer the wiring length, the more susceptible to external influences,
so please contact us if you are concerned.
・The shield wire should be connected to terminals No. 5 and No. 10 ofthe detection card for each channel.
The No. 5 and No. 10 terminals of each channel are combined internallyand connected to the SG terminal of the power line.
This SG terminal is usually connected to the ground terminal
to drop the shield to ground.
・The CHECK terminal of the power card is for checking the internal circuitry,
do not wire it.
・If the control output wiring is long, or if this signal is connected to a control device
that does not have an isolated input circuit, it may malfunction due to noise.
Use an insulated input circuit as much as possible and keep the wiring
as short as possible.
・After wiring, check the miss wiring or loose screws before turning on the power.
MODE
MODE

（２）In case of the single (or cantilever) type tension pickup.
・In case, connect the pickup to terminal of the detection card No. 1~5 (L side) or,
No. 6~10(R side), and turn to on switch of the use side only.
・A red "S" sticker is attached to the top of each channel.
Please be careful not to mistake the connection channel.
・If you want to change it for two tension pickups,
you need to change the DIP switches setting.

（３）Power card (MSM-PS2)
MODE

MSM-PS2

MODE

CHECK

+
0v

SG
AC IN
100~240V
EARTH

①
②
③
④
⑤
⑥

Don't wire anything.

SG is connected to ground normally.

Be sure to wire for grounding.

6

（４）Detection card (TCH-770) for LSP tension pickup.

TENSION PICKUPL (LEFT)+EXC Red [A]PU-SIG Black [B]-EXC White [C]L+SIG Green [D]Shielded wire [E]+EXC Red [A]PU-SIG Black [B]R -EXC White [C]+SIG Green [D]Shielded wire [E]

TCH-770

⑪
①⑫
②⑬
③⑭
④⑮
⑤⑯
⑥
⑰
⑦⑱
⑧
⑲
⑨⑳
⑩

TENSION PICKUP
R (RIGHT)

[+]
[0v]
[+]
[0v]
[+]
[0v]
[+]
[0v]

Total 1 output(0 ~ 1mA or
0 ~ 10V variable)
Total 2 output(0 ~ 1mA or
0 ~ 10V variable)
Total 3 / left side output(0 ~ 1mA or
0 ~ 10V variable)
Total 4 / right side output(0 ~ 1mA or
0 ~ 10V variable)

Use a 4-core shielded wire of 0.5 square
meters or more, and wire it away fromthe power line wires.

（５）Detection card (TCH-770) for LA tension pickup.
TENSION PICKUPL (LEFT)Black [3]PU

Red [1]

LWhite [2]Black [3]PU

Red [1]

R
White [2]TENSION PICKUP
R (RIGHT)

TCH-770

⑪
①⑫
②⑬
③⑭
④⑮
⑤⑯
⑥
⑰
⑦⑱
⑧
⑲
⑨⑳
⑩

7

[+]
[0v]
[+]
[0v]
[+]
[0v]
[+]
[0v]

Total 1 output(0 ~ 1mA or
0 ~ 10V variable)
Total 2 output(0 ~ 1mA or
0 ~ 10V variable)
Total 3 or left side output(0 ~ 1mA or
0 ~ 10V variable)
Total 3 or right side output(0 ~ 1mA or
0 ~ 10V variable)

Use a 3-core shielded wire of 0.75 square
meters or more, and wire it away fromthe power line wires.

４．NAMES AND FUNCTIONS OF EACH PART
（１）NAMES①Tension indicator (0~100%)
This meter indicates tension valueof selected channel by theMODEselector
MODE
switch.

②Channel selector switch③Tension indicator adjustor VR⑥Check terminals（for meter and output adjust）④Power lamp

⑦Shielded wire grounding⑤Power switch⑧Power input(AC100～240V)⑨Earth terminal（power source grounding）⑪Detective capacity⑩Channel No.
⑫Using location⑭Right side balance adjustor
VR（LA type only）⑬Left side balance adjustor
VR（LA type only）⑯Right side zero adjustor VR⑮Left side zero adjustor VR⑱Right side scale adjustor VR⑰Left side scale adjustor VR⑲Left side detecting ON/OFF
indicator lamp

⑳Right side detecting ON/OFF
indicator lamp

㉑Left side detecting
ON/OFF switch㉒Right side detecting ON/OFF switch㉓Total 1 output level adjustor VR㉔Total 2 output level adjustor VR㉕Total 3 / left side output
level adjustor VR㉖Total 4 / right side output leveladjustor VR㉗DIP switches forvarious settings (DSW1)㉘DIP switches for filter setting (DSW2)㉙External connection terminals-LSP㉚Connectable detector seal
-LSP or -LA
8

（２）FUNCTIONSThe standard DIP switch settings are designed to match those of
the previous TCM-550 model.

No.

NAME

①

Tension indicator②

FUNCTION
・Tension value of selected channel by② switch, it’s indicate 0 ～ 100% unit.

Channel selector switch ・Channel select for intend to check on ① indicator.

③

Tension indicator
adjustor VR④

Power lamp

・Lighten at the ⑤ sw. ON.
・Combine indicates ±15V DC power.

⑤

Power switch

・Power line SW.

・For ① indicator adjustor.
・No use to customer side.

・Check for the base voltage on each detection card.
・Use for adjusts on external meter and controller
voltage.

⑥

Check terminals⑦

Shielded wire grounding⑧

Power input⑨

Earth terminal

・Ground the grounding.

⑩

Channel No.

・Each channel No., is indicated here.
・No.1 channel is side of power source.

⑪

Detective capacity⑫

Using location⑬

Left side balanceadjustor VR
Right side balanceadjustor VR
Left side zeroadjustor VR
Right side zeroadjustor VR
Left side scale
adjustor VR
Right side scale
adjustor VR
Left side detecting
ON/OFF indicator lamp
Right side detecting
ON/OFF indicator lamp
Left side detecting
ON/OFF switch
Right side detecting
ON/OFF switch
Total 1 output leveladjustor VR
Total 2 output leveladjustor VR

⑭
⑮
⑯
⑰
⑱
⑲
⑳
㉑
㉒
㉓
㉔

・It is connected to the terminal for connecting the shieldwire of the pickup cable provided on each detection card.
・Supply 100 ～ 240V AC.
・Free voltage.

・Detective capacity is indicated here, it's capacity equal
to the full-scale number of exterior tension meter.
・If customer demanded that using location orchannel No., and be specify here.
・For the left side balance adjustor.
・It is used only with LA tension pickup.
・For the right side balance adjustor.
・It is used only with LA tension pickup.
・For left side zero adjustor.
・For right side zero adjustor.
・For left side scale adjustor.
・For right side scale adjustor.
・for indication the tension signal on/off on the left side.
・Combine indicates +15V DC power.
・for indication the tension signal on/off on the right side.
・Combine indicates -15V DC power.
・Use for the left select switch to the tension pickups.
・Use for the right select switch to the tension pickups.
・For Total 1 output level adjustor.
・For Total 2 output level adjustor.

9

No.
㉕
㉖

NAME

Total 3 / left side
・For Total 3 / left side output level adjustor.
output level adjustor VR
Total 4 / right side output
・For Total 4 / right side output level adjustor.
level adjustor VR
Name
Means
ON OFFBit㉘㉙㉚

Original
setting

LA

OFF

LSP

OFF

LA

ON

LSP

OFF

LA

OFF

LSP

OFF

LA

ON

LSP

OFF

1

LG･L

L side gain adj large

Hi

Lo

2

LG･S

L side gain adj small

Hi

Lo

3

RG･L

R side gain adj large

Hi

Lo

4

RG･S

R side gain adj small

Hi

Lo

5
6
7
8
9
10
Bit
1
2
DSW2
3
DIP switches
4
for filter
5
setting67
8External connection
terminals

B-S
T-L1
T-L2
T-R1
T-R2
Name
T1･V-I
T1･FIL
T2･V-I
T2･FIL
TL･V-I
TL･FILTR･V-I
TR･FIL

Detection mode selector Single Twin

OFF

DSW1

㉗

FUNCTION

DIP switches
for various
settings

Total3 / L output selector 1

Total3Left

ON

Total3 / L output selector 2

Left Total3

OFFTotal4 / R output selector 1

Total4 RightON

Total4 / R output selector 2

Right Total4

OFF

Unused
Means

ON

OFF

Original
setting

Amp. or volt. Output
selector for Total 1

Volt

Amp

OFF

Filter on/off for Total 1 ON

OFF

ON

Volt

Amp

ON

Filter on/off for Total 2 ON

OFF

ON

Volt

Amp

ON

ON

OFF

OFF

Volt

Amp

ON

ON

OFF

OFF

Amp. or volt. Output
selector for Total 2
Amp. or volt. Output
selector for Total 3 / left side
Filter on/off
for Total 3 / left side
Amp. or volt. Output
selector for Total 4 / right side
Filter on/off
for Total 4 / right sideOFF・For connecting external signal lines.

・Up to Board Rev. TCH-770/01C-E, the connectabledetectors are fixed to the type on the seal attached here.
Connectable detector seal
Board Rev. TCH-770/01D-E and later can be selected by
DIP switches DSW3 and DSW4.

Substrate component surface
Contents differ depending on the Rev. number of the board★For substrates up to Rev. TCH-770/01C-E★For substrate Rev. TCH-770/01D-E㉛DIP switches on
the board DSW3

㉛DIP switches on
the board DSW3

㉜DIP switches on
the board DSW4

Board Rev. No.

10

DSW3 and DSW4 have different settings for different board revisions.
★For board Rev. TCH-770/01D-E ・・・Set according to the detector to be connected.
Bit

Name

Means

ON OFF

1

L･VR1

L side Balance VR
enable/disable 1

enable disable

2

L･VR2

L side Balance VR
enable/disable 2

enable disable

3

LIN･G

4

R･VR1

R side Balance VR
enable/disable 1

enable disable

5

R･VR2

R side Balance VR
enable/disable 2

enable disable

6

RIN･G

7

WAVE1

Applied waveform 1

AC

DC

8

WAVE2

Applied waveform 2DCAC

L side Input G small/large small large

DSW3

㉛

DIP switcheson the board

Bit

Name

Means

ON OFF

1

LIN･C-

L side Input Cenable/disable

enable disable

2

LIN･C+

L side Input C+
enable/disable

enable disable

3

RIN･C-

R side Input Cenable/disable

enable disable

4

RIN･C+

R side Input C+
enable/disable

enable disable

DSW4

㉜

DIP switcheson the board

R side Input G small/large small large

Original
setting

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

OFF

LSP

ON

Original
setting

LA

OFF

LSP

ON

LA

OFF

LSP

ON

LA

OFF

LSP

ON

LA

OFF

LSP

ON

★For boards up to Rev. TCH-770/01C-E・・・The connectable detectors are fixed at
the factory and cannot be changed by setting switch DSW3.
Bit

Name

1

L･VR1

2

L･VR2

3

LIN･C

4

LIN･G

5

R･VR1

6

R･VR2

7

RIN･C

8

RIN･G

9

WAVE1

Applied waveform 1

AC

DC

10

WAVE2

Applied waveform 2

DC

AC

Means
L side Balance VR
enable/disable 1
L side Balance VR
enable/disable 2
L side Input C
enable/disable

DIP switcheson the board

enable disable
enable disable
enable disable

L side Input G small/large small large

DSW3

㉛

ON OFFR side Balance VR
enable/disable 1
R side Balance VR
enable/disable 2
R side Input C
enable/disable

11

enable disable
enable disable
enable disable

R side Input G small/large small large

Original
setting

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

OFF

LSP

ON

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

OFF

LSP

ON

LA

ON

LSP

OFF

LA

ON

LSP

OFF

LA

OFF

LSP

ON

５．EXPLANATION OF EACH PART
［１］Channel selector switch and internal meter

MODE
ChannelNo.
MODE

Detective capacity

Tension indicator
Channel selector switch

Check terminals（１）The tension indicator shows the tension value of the channel selected by
the channel selector switch.
(This corresponds to the slot position, not the card number.)If you select a channel without the card, the indicator will not work.
（２）The tension indicator is displayed on a scale of 0 to 100%.
The channel number and detection capacity are written on the top of each channel,
as shown in the figure.
The tension value should be converted and read using the written
detection capacity as 100%.
Example: Detection capacity 300N
Meter indication 65%
In this case, the tension value is 300 x 0.65 = 195N
（note）If all channels have the same capacity, there is no problem,
but if they are different, be careful not to mistake them forother channel capacities.
（３）The check terminals output the tension signal of the channel selected by
the channel selector switch in the range of 0 to 5V.
When the internal meter indicates 100%, the output is 5.0V.
12

［２］How to remove the terminal block and card
（１）Each detection card can be removed together with the terminal blockby loosening the two screws shown in A below, without removing
the connected wires.
This is convenient when checking or replacing the detection card.
（２）The terminal block of the power card cannot be removed.
Turn off the power and disconnect each wire before removing the card.
Power card

Detection（３）To remove a card, pull the knobs on the top and bottom of each card toward you.
To install the card, insert the card firmly and push the knob in to lock it in place.
Please turn off the power before inserting or removing the card.

Pull
Knob

（４）If there is an empty channel (with a cover plate attached),
an additional detection card can be installed.
The channel selector switch and tension indicator are connected to all channels
in advance, so they can be used immediately.

13

［３］Setting the DIP switches on the board
Supported by substrate Rev. TCH-770/01D-E or later.
There are two types of tension pickups, one using a coil and the other using a strain gauge.
Set the "DIP switches DSW3 and DSW4 on the board" according to the detector to beconnected.
This function is supported by board Rev. TCH-770/01D-E or later.
The detector that can be connected to earlier Rev. boards is fixed at the factory, so please
Using a coil

Using a strain gauge

LA typeOther

ＬＡ－０、ＬＡ－ⅠＦ、ＬＡ－ⅡＦ、ＬＡ－Ⅲ

LSP type

ＬＳＰ－００、ＬＳＰ－０１、ＬＳＰ－０５、ＬＳＰ－１０、
ＬＳＰ０１ーＺ、ＬＳＰ０５－Ｚ、ＬＳＰ１０－Ｚ

ＳＴ－３

LS type(conventional)
Other

ＬＳ－０、ＬＳ－１、
ＬＳ０－Ｚ、ＬＳ１－Ｚ
ＦＴ－１、ＦＴ－３

DIP switches on the board (DSW3)
Substratecomponent
surface
DIP switches on the board (DSW4)
Board Rev. No.

Set any of the settings according to the detector

DSW3

DSW4

Bit

Name

1

L･VR1

2

L･VR2

3

LIN･G

4

Means

ON OFF

LA type

LSP type

L side Balance VR enable/disable 1 enable disable

ON

OFF

L side Balance VR enable/disable 2 enable disable

ON

OFF

large

ON

OFF

R･VR1

R side Balance VR enable/disable 1 enable disable

ON

OFF

5

R･VR2

R side Balance VR enable/disable 2 enable disable

ON

OFF

6

RIN･G

R side Input G small/large

small

large

ON

OFF

7

WAVE1

Applied waveform 1

AC

DC

ON

OFF

8

WAVE2

Applied waveform 2

DC

AC

OFF

ON

Bit

Name

Means

LA type

LSP type

1

LIN･C-

L side Input C- enable/disable enable disable

OFF

ON

2

LIN･C+

L side Input C+ enable/disable enable disable

OFF

ON

3

RIN･C-

R side Input C- enable/disable enable disable

OFF

ON

4

RIN･C+

R side Input C- enable/disable enable disable

OFF

ON

L side Input G small/large

small

ON OFF14

［４］Setting the DIP switches for various settings（１）Amplifier gain settingThis is the setting for the amplification factor of the input signal fromthe tension pickup.
If the tension does not increase to the target tension even when
the scale adjustment VR is turned all the way up, increase the gain setting.
The sensitivity can be increased from 1X to 7.9X.
When changing the gain, use the same setting for both the L and R sides.
The higher the magnification, the worse the accuracy of the various functions
and the more likely it is that zero fluctuation will occur.

Bit
1
2
3
4

Name
LG･L
LG･S
RG･L
RG･S

Means
L side gain adj large
L side gain adj small
R side gain adj large
R side gain adj small

Bit No.
L
1
2

R
3
4

ON OFF

LA

LSP

Hi

Lo

OFF

OFF

Hi

Lo

ON

OFF

Hi

Lo

OFF

OFF

Hi

Lo

ON

OFF

1X

Gain setting
3.4X
5.6X

7.9X

OFF
OFF

OFF
ON

ON
ON

ON
OFF

LA original setting

LSP original setting（２）Tension output mode setting

Sets the assignment of the tension signal to be output fromthe external terminal block.
Total 3/left side output can output a left signal in addition to the total signal.
Total 4/right side output can output the right signal in addition to the total signal.
Change the two switches as a set, Bit 6 and 7, Bit 8 and 9.
The total signal can be output from 4 systems together with the Total 1 and 2.
Bit
6
7
8
9

Name
T-L1
T-L2
T-R1
T-R2

Means

ON OFF

original setting

Total3 / L output selector 1

Total3Left

ON

Total3 / L output selector 2

Left Total3

OFFTotal4 / R output selector 1

Total4 RightON

Total4 / R output selector 2

Right Total4

OFF

As an example①When using one analog indicator and one output for control.
Total 1 is output to the analog indicator, and Total 2 is output for control.
Total 3 /left side output and Total 4 /right side output are not used.
②When using four analog indicators.
Total 1, Total 2, Total 3 / left side output, Total 4 / right side output
output to the analog indicator.

15

（３）Setting the pickup's detection modeThis is the setting for the detection mode of the tension pickup.
Turn OFF the Bit for both side hold and both side detection type (twin pickups),
and turn ON the Bit for both side hold and single detection typeor cantilever type (single pickup).
Bit
5

Name
B-S

Means

ON OFF

original setting

Detection mode selector Single Twin

OFF

①Twin pickups：A configuration in which pickups are installed on both sidesof the pickup roller and the added values of both are used.

Guide roller

Pickup roller

LSP type
Tension pickup

LSP type
Tension pickup②Single pickup：A configuration in which a pickup is attached to one side of
the pickup roller.

LSP type
Tension pickup(cantilever type )Pickup roller

LSP type
Tension pickup(cantilever type )16

［５］Setting the DIP switches for the filter setting（１）Voltage and current switching of tension output
Select whether to output signal as voltage or current fromthe external terminal block.
Total 1, Total 2, Total 3 / left side output, and Total 4 / right output canbe selected for each.
When connecting an analog indicator, select the current output.
The current is converted with a 10KΩ resistor, and the maximum current
that can flow is 1mA.
When connecting a digital indicator or sequencer, select the voltage output.
Bit
1
3
5
7

Name
T1･V-I
T2･V-I
LT･V-I
RT･V-IMeans

ON OFF

original setting

Amp. or volt. Output selector for Total 1

Volt

Amp

OFF

Amp. or volt. Output selector for Total 2

Volt

Amp

ON

Amp. or volt. Output selector for Total 3 / left

Volt

Amp

ON

Amp. or volt. Output selector for Total 4 / right

Volt

Amp

ON

Bit1

⑪
⑫
⑬
⑭
⑮
⑯
⑰
⑱

10KΩ
Bit3
10KΩ
Bit5
10KΩ
Bit7
10KΩ

+
0v
+
0v
+
0v
+
0v

Total 1 output(0 ~ 1mA or
0 ~ 10V variable)
Total 2 output(0 ~ 1mA or
0 ~ 10V variable)
Total 3 or left side output(0 ~ 1mA or
0 ~ 10V variable)
Total 4 or right side output(0 ~ 1mA or
0 ~ 10V variable)（２）Filter switching for tension output
Select the filter to be added to the signal output from the external terminal block.
Total 1, Total 2, Total 3 / left side output, Total 4 / right side output canbe selected for each.
For analog indicators, the slower the response, the easier it is to read the value,
so add a filter.
When connecting a digital indicator or sequencer, add a filter as necessary.

Bit
2
4
6
8

Name
T1･FIL
T2･FIL
LT･FIL
RT･FILMeans

ON OFF

original setting

Filter on/off for Total 1

ON

OFF

ON

Filter on/off for Total 2

ON

OFF

ON

Filter on/off for Total 3 / left side

ON

OFF

OFF

Filter on/off for Total 4 / right side

ON

OFF

OFF

17

６．TENSION PICKUP CALIBRATION
・After installing the tension detector and completing the wiring, adjust the pickup.
・A tester is required for adjustment.
・Make the same adjustments for all channels.
・To stabilize the circuit, wait at least 20 minutes after power-on before making
any adjustments.
・Please refer to "4. Names and functions of each parts" for the numbers marked
with ○ in the text.
・The adjustment points for the left side and the right side change depending on
the tension detection mode.
In the case of twin pickups, both the left side and the right side need to be adjusted.
In the case of single pickup, either side needs to be adjusted.
For the tension pickup itself, please refer to the respective instruction manual.
MODE
MODE

（１）Balance adjustment ・・ Perform only for LA type, not necessary for LSP type.
・This is the process of balancing the bridge circuit to match the tension pickup.
This must be done when the pickup is newly installed or relocated.
Once adjusted, it does not need to be done again.
Make sure that no external force such as a sheet is applied to the tension pickup.
For this adjustment only, set the tester to the AC range.
【Left side balance adjustment】
・Connect a tester between No. [2] and No. [4] on the terminal block of the detection card.
・Turn the left side balance VR ⑬ to make the voltage between [2] and [4] closer to 0v.
If you turn the VR further, it will go away from 0v,
so adjust it to be as close to 0v as possible.
【Right side balance adjustment】
・Connect a tester between No. [7] and No. [9] on the terminal block of the detection card.
・Turn the right side balance VR ⑭to make the voltage between [7] and [9] closer to 0v.
If you turn the VR further, it will go away from 0v,
so adjust it to be as close to 0v as possible.
In the case of single pickup, adjust only the side to be used.

（２）Zero adjustment
MODE
MODE

・This is an adjustment to set the pickup to zero output when no tension is applied to it.
・Make sure that no external force such as a sheet is applied to the tension pickup.
・Select the channel No. to be adjusted with the channel selector switch ②.
・Connect a tester to the check terminal ⑥.
The positive lead will be the upper terminal and the negative lead will be
the lower terminal.
【Left side zero adjustment】
・Set the left side ON/OFF switch ㉑ to ON and the right side ON/OFF switch ㉒ to OFF.
・Adjust the left side zero adjustment volume ⑮ so that the tester value is close to "0v".
【Right side zero adjustment】
・Also turn on the right side ON/OFF switch ㉒.
・Adjust the right side zero adjustment volume ⑯ so that the tester value is close to "0v".
In the case of single pickup, adjust only the side to be used.
18

（３）Scale adjustment
・Adjust the sensitivity of the tension pickup to meet the specifications.
Perform the scale adjustment after the zero adjustment has been completed.
Since the scale adjustment may cause the zero point to deviate,
it is recommended to adjust the zero and scale two or three times alternately
for more accurate adjustment.
【preparation】
・Use a sturdy tape or rope to hang the weight on the pickup roller.
Refer to the figure in "5. EXPLANATION OF EACH PART" for rope threading.
・The rope should be placed in the center of the roller, and the rollers
in front of and behind the pickup roller should be threaded so thatthe sheet runs through them.
・The weight used should be the same level as the normal tension
for more accurate adjustment.
・If a weight cannot be used, use a spring balance or the like.
・Use the channel switch ② to select the channel No. to be adjusted.
・Connect a tester to the check terminal ⑥.
The positive lead will be the upper terminal.
MODE【Left side scale adjustment】
・Set the left side ON/OFF switch ㉑ to ON and the right side ON/OFF switch ㉒ to OFF.
・Adjust the left side scale adjustment volume ⑰ so that the tester value is "2.5v".
MODE【Right side scale adjustment】
・Also turn on the right side ON/OFF switch ㉒.
・Adjust the left side scale adjustment volume ⑱ so that the tester value is "5v".
In the case of single pickup, adjust only the side to be used.

19

（４）Output adjustment
・The tension signal is output as a voltage or current analog signal for the total,
left side and right side signals respectively, and this output level is adjusted.
【preparation】
・Use the channel switch ② to select the channel No. to be adjusted.
・Connect a tester to the check terminal ⑥ of the power card (MSM-PS2).
The positive lead will be the upper terminal and the negative lead will be
the lower terminal.
・Since the full scale state is set when the check terminal voltage is 5v,
deliberately shift the zero point and set the check terminal voltage to 5v
according to the following procedure.
Turn on both the left-side ON/OFF switch and the right-side ON/OFF switch.
Turn the left side zero adjustment volume ⑮ to set the tester voltage to 5.0v.
【Output adjustment】
・There are four output systems: Total 1, Total 2, Total 3 / left side output,
and Total 4 / right selective output.
To select which signal to output, refer to "[4]Setting the DIP switches forvarious settings" in section 5.
・The four outputs can be selected from voltage and current outputs,
and the filter characteristics can be selected from fast response and slow response.
When connecting an analog indicator, set it to current output and selectthe slow filter.
For this selection, please refer to "[5]Setting the DIP switch for the filter setting"in section 5.
・The output level of each of the four systems is adjusted by the volume.
Use the "Total 1 output level adjustor VR " for Total 1,"Total 2 output level adjustor VR " for Total 2,"Total 3 / left side output level adjustor VR " for Total 3 / left side,and "Total 4 / right side output level adjustor VR " for Total 4 / right side.
In the case of analog indicator, adjust so that the meter indicates the full scale.
In the case of voltage output to a sequencer, adjust so that the required voltage
is obtained.
・After completing the adjustment of the output, restore the zero pointthat was intentionally shifted.
Turn the left side zero adjustment volume ⑮ to set it to 0v.

20７．MAINTENANCE（１）Avoid exert a strange shock on the tension pickup without a tension force.
Never step on the pickup anyone.
（２）In case of exerted a heavy force on the tension pickup with a paper breaking
or a film coiling, there is possibility of the zero point get out of order.
Sometimes check a zero point, if it’s off and make adjust again.
MODE
MODE

（３）In the long run using, a sensibility (scale) gain may get off the point.
Make calibrate to the pickup, once or twice a year.
（４）In the very long run using, the dust has collect in the meter,and sometimes it causes the operation trouble.
Make clean the inside by the air flashing, once a year or two years.

21

８．TROUBLE SHOOTING（１）Power dose not supply.
・Is the power supply?(AC100~240V)
Ans.If it is not supplied, check the wiring, check the supply voltage.
Ans.If the power supply is normal, try unplugging the power card with the power supplied.
・Is the Power lamp lightens when you try to unplug the power card with the power supplied?
Ans.If it does not light up, the power card MSM-PS2 is faulty and needs to be replaced.
Ans.If it lights up, please put the power card back and unplug the detection cards one by one.
・Is the Power lamp lightens when you remove the detection card?
Ans. If the Power light comes on, the detection card you unplugged at that time
is faulty and needs to be replaced.
Ans. If the Power light does not come on after removing all the detection cards,
the power line may be shorted in the motherboard of the unit.
・The "Left side detecting ON/OFF indicator lamp" on the TCH-770 board serves
as an indicator for the +15v power supply, and the "Right side detecting ON/OFF
indicator lamp" serves as an indicator for the -15v power supply.
If the power supply is normal, the lamp will light up when the ON/OFF switch isturned on, but if the power supply has failed and there is no voltage output,
the indicator lamp will not light up even if the ON/OFF switch is turned on.

22

（２）For LA type tension pickup①Be impossible for the balance adjustment of the pickup.
・Even if the balance VR is turned, the voltage between terminals does not become near zero.
Ans. Is the tester set to the AC range?
It is not possible to measure in the DC range.
・The voltage between terminals does not change or does not approach zero even if
the balance VR is turned.
Ans. There is a possibility that there is a mistake in the wiring, please check the wiring.
②Be impossible for the zero adjustment of the pickup.
・Be impossible for the zero adjustment.
Ans.Check the setting of the channel select SW, L and R side ON/OFF SW.
・The meter needle move by the zero VR, but can’t the fit to the zero point.
Ans.Check the machine type, the roller weight, the mounted postures and the using locations,and confirm the agreement with these specifications.
③Be impossible for the scale adjustment of the pickup.
・Be impossible for the scale adjustment with zero adjustment completed.
Ans.Check the setting of the channel select SW, L and R side ON/OFF SW.
・Hang weight, and the meter are moving into the opposite direction.
Ans.Check about the mounted direction accord with the additional force direction.
Ans.If the wiring between No.2 and No.4 is reversed for the left side, or No.7 and No. 9
are reversed for the right side, the meter needle will move in the opposite direction.
・Hang weight, but the meter isn’t moving.
Ans.Check for disconnection at No. 1 for the left side and No. 6 for the right side.
・The meter is moving, but does not adjusting.
Ans. Check if the model, roller weight, sheet angle, etc. are correct according to
the specifications of the delivered product.
Ans. Scale adjustment may not be possible if the pickup is poorly mounted or twisted.
Ans. When the pickups usage is below in a lower limit, it’s impossible for the scale
adjustment rare, vary the gain setting.
④Judgment methods for in case of missing the wiring from the pickups.
・Remove the wires from the terminal board and measure the resistance between
the two wires with a circuit tester. (3 wires, 3 ways)
・Of the resistance values measured, the maximum value is the combination of
the red wire [1] and the white wire [2].
The remaining one is the black wire [3].
・Connect the black wire [3] to terminal block No.1 (or No.6).
・Connect the red wire [1] to terminal block No.2 (or No.7), and the white wire [2] toterminal block No.4 (or No.9).
At this point, you can connect the red wire [1] and the white wire [2] in reverse.
・Hang the weight in this state, and when the meter faces the - side,
replace the red line [1] with the white line [2].
・Be sure to check the left side and the right side separately, and confirm thatboth meters swing in the positive direction when a load is applied.

23

（３） For LSP type tension pickup①Wiring the Pickup.
・If wire A or C is disconnected, zero adjustment is possible, but the meter will not
swing even if a load is applied.
・If wire B or D is disconnected, the meter will swing out.
Disconnection of B wire ―― swing out to minus side
Disconnection of D wire ―― swing out to positive side.
・If the B wire and D wire are switched, the meter will swing in the opposite direction.
②Applied voltage to the pickup
・How to check the applied voltage
Connect the negative side of the tester to terminal block No.12.
Connect the positive side of the tester to No.1 on the terminal block and measure the voltage.
Ans. If the voltage is +5.0V±0.2V, it is OK.
Connect the positive side of the tester to No. 3 on the terminal block and measure the voltage.
Ans. If -5.0V±0.2V, it is OK.
If the measured voltage deviates from the above, it is abnormal.
Ans. Replace the detector card.
③How to check the disconnection inside the pickup.
・Remove the terminal block of the tension detection board.
・Using a tester, measure the resistance between lines A and C.
If the resistance is within the range of the input resistance specified in the specificationsof the detector, it is OK.
・Use a tester to measure the resistance between lines B and D.
If the resistance is within the range of the output resistance specified in the specificationsof the detector, it is OK.
・If you want to check the wiring, remove it from the terminal block and check it in the same way.
④Life of strain gage.
・Depending on the usage conditions, the zero point may shift over a long period of time
due to repeated loading or overload.
The life of the strain gage is defined as the point at which zero adjustment is no longer possible.
In this case, it is necessary to replace the detector.
⑤If the strain gage is disconnected due to overload, the meter will swing out.
・The pickup needs to be replaced.
⑥The operation of the tension detection circuit can be checked as follows.
・Short-circuit the wires between B and D (between No.2 and No.4 for L side,and between No.7 and No.9 for R side).
If zero adjustment can be made in this state, the detection circuit is normal.
⑦If you are unable to identify the wiring of the pickup.
・In the case of LSP type, the wiring cannot be identified by the method of
measuring the resistance value.
⑧Installation of the pickup.
・If the mounting surface of the pickup is inaccurate or if the roller is not aligned properly,
the pickup may be twisted, and zero/scale adjustment may not be possible or
the meter may swing backwards. Also, the linearity of the output will be poor.
・You can determine if the detector is fouled in the following way.
First, check the R and L outputs separately. Remove the roller and check the R and L outputs.
If the output changes by more than the weight of the roller, there is a kink.
⑨When the roller is too heavy.
・ If the roller is so heavy that it exceeds the detection range of the detector,
both zero and scale adjustment may not be possible.
The only solution is to change the detector model.

24

（４）Unusual tension indicator.
①Meter not indicates zero point at the power is off.
・Adjust the mechanical zero of the meter itself.
②Meter needle moving isn’t smooth. (Moving as like catch on the way.)
・Needle occasionally clings to a cover inside by the static electricity,and needle moving become wring.
Eliminate the static electricity, or replace a new meter.
③Needle move back and forth.
・This cause is the machinery vibration. Separate a meter from the machine,and defend from the machinery vibration.
④Meter indication is change under the machine is stop.
・Is supposing that by the noise influence.
Use a shielded cable for the pickup cable, and separate from the power line.
Compare the connection and non-connection of the SG and FG terminals,
and select the one with the least change.
⑤ Meter needle move right and left at the machine is high speed operation.
・Pickups occasionally resonant with the pickup roller revolution.
(Especially on a high-speed machine)
In this case, on trail change the machine speed, and if the resonant is put down,that is the resonance.
Be sure make the dynamic balance of the pickup roller.
⑥ Output to analog indicator.
・When voltage is applied to an ammeter, the needle swings out.
・It is possible to connect a voltmeter in current output mode, but if the impedance ofthe voltmeter is small, the display will not increase even if "M" VR is turned.

（５）Tension became irregular when the seat is run.
① Is a paper roll center unbalanced? (An eccentric state)② Is a rewinder shaft inconsistent turning?
③ Is the line speed stability?
④ Check a guide roller unbalanced, turning stability and the dynamic balance.
⑤ Is the paper shaft slip?

25

９．SPECIFICATION & DIMENSIONS
Tension meter

MSM

SPECIFICATIONSMSM□-〇-△H
Number of TCH-770 mounted
Number of slots (2,4,6,8,10)
MSMS・・・Chassis type
MSMB・・・Box type

type representation

POWER SOURCEENVIRONMENTSDIMENSIONSWEIGHT

AC100～240V
40VA or less（10 CH）

50／60Hz

0～40℃ / temperature
80％ below / humidity (Avoid dew)
This is different from the channel number.Refer to the figure of dimension.

about 5.7kg / chassis type 10 channels.
MSMS (Chassis type)

Body : Hammer tone black
Panel : Hairline silver (letter is black)

MSMB

Follow the customer’s specified.

BODY COLOR(Box type )Tension detection card TCH-770 SPECIFICATIONS（The original settings are designed to match those of the previous TCM-550 model.）OUTPUTOUTPUT SPECIFICATION

Total 1 output

Total 2 output

Total 3 / left side output

Total 4 / right side output

ORIGINAL SETTING

Voltage output: DC0 ～ +10V/FS
Current output: DC0 ～ 1mA/FS
Filter ON/OFF switch
ON (0.2Hz), OFF (7Hz)
Voltage output: DC0 ～ +10V/FS
Current output: DC0 ～ 1mA/FS
Filter ON/OFF switch
ON (1.7Hz), OFF (7Hz)

Current output
0.5mA/FS

Total 3/Left side output switching

Total 3

Voltage output: DC0 ～ +10V/FS
Current output: DC0 ～ 1mA/FS
Filter ON/OFF switch
ON (0.2Hz), OFF (7Hz)

Voltage output
5V/FS

Total 4/Right side output switching

Total 4

Voltage output: DC0 ～ +10V/FS
Current output: DC0 ～ 1mA/FS
Filter ON/OFF switch
ON (0.2Hz), OFF (7Hz)

Voltage output
5V/FS

ON (0.2Hz)
Voltage output
5V/FS
ON (1.7Hz)

OFF (7Hz)

TCH-770 Characteristics
ITEM

LSP type pickup included

LA type pickup included

Linearity±0.1 %±1.0 %

Reproducibility±0.05 %

±0.1 %

Hysteresis±0.1 %±0.5 %

Temperature drift±0.012 %/FS/℃±0.05 %/FS/℃

26

OFF (7Hz)

DIMENSIONS

Chassis type MSMS-□

Fixing pitch M

Fixing hole (4-M4)

Box type MSMB-□

4-Φ7
Fixing holeType
Chassi

Chassis type

2ch
4ch
6ch
8ch
10ch

27

Box type