Screw Counter Series

BLOP-STC 3
CLT-70STC 3
Operation Manual(July, 2019)

BLOP-STC 3

CLT-70STC 3

HIOS Inc.

1-35-1 Oshiage, Sumida-ku Tokyo, Japan 131-0045
TEL: +81-3-6661-8821 (Overseas Sales Dept.)
FAX: +81-3-6661-8828

No. ET-A012 19A

Table of Contents
Introduction..............................................................................................................................2■ Summary............................................................................................................................2■ Counting function...............................................................................................................2■ Other functions...................................................................................................................2■ Precautions concerning installation location......................................................................3■ Precautions during use.......................................................................................................3■ Specification.......................................................................................................................4■ Compatible screwdriver......................................................................................................5■ Primary functions and description of terms........................................................................5■ Description of name and function for each section ...........................................................7
Front panel.........................................................................................................................7
Rear panel........................................................................................................................10
Function setting table.......................................................................................................13■ Initial settings....................................................................................................................14■ Quick installation..............................................................................................................17
1. Normal power mode....................................................................................................17
2. Continuous counter mode...........................................................................................17
3. Counter mode.............................................................................................................18
4. Multiple counter mode.................................................................................................20■ Timing chart......................................................................................................................23■ Troubleshooting................................................................................................................27■ The Following Table Is for CHINA RoHS2........................................................................28- 1 -Introduction
Thank you for purchasing the BLOP-STC 3, CLT-70STC 3 screw counter. Prior to use,please read through this operating manual to enable proper use of the equipment. After use,
keep this manual in a safe place.

■ SummaryWhen tightening screws, it is necessary to verify that the operator has tightened the stipulated number of screws for 1 work piece to prevent forgetting to tighten screws. The Screw
counter has been developed as a power supply unit with a screw counting function to relieve
the burden on operators, to improve operating efficiency and to prevent careless mistakes.

■ Counting function
1. This device can be set to tighten between 1 and 99 screws, depending on the workpiece, and for each screw tightened, the display of the number of screws remaining is
reduced by one.
2. When the final screw is tightened, a buzzer sounds to prevent forgetting to tighteninga screw. This also permits confirmation of completion of work.
3. After completion of tightening screw, the display of the number of screws is automatically renewed using an auto reset function, and the electric screwdriver will not operate until the set signal for confirmation of the work piece is received.
* Screwdriver operation in standby mode can be prevented.
4. Prevents counting of confirmation tightening and additional tightening (tightening
screws a second time).
5. The equipment can be set not to count cases where a screw is not fully seated,
obliquely tightened or where tightening is insufficient*.
* Depends on type of work being performed.

■ Other functions
1. The external device control function enables solenoid valve control of a jig to fix workin place, and utilization of a commercially available total counter to count the total
number of work pieces completed.
2. In multiple counter mode using the external connection function, careless mistakes
can be prevented independently of the operator by operating several electric screwdrivers for different numbers of screws or with different output torques in order of thework being performed, for example in cell manufacturing, etc.
3. This equipment also has a normal power mode, where the counter function is disabled
and it functions as a normal power supply unit.

- 2 -■ Precautions concerning installation location● Install a short circuit breaker or safety breaker in conjunction with commercial power
supply.
● Install the equipment where it is not exposed to dust, dirt and pieces of metal.
● Install in a location where it will not come into contact with water and oil.
● Do not place or stack heavy objects on top of this equipment.
● Install this equipment in a stable location that will not cause vibration.
● For installation in a high location, fix the equipment firmly to exclude the risk of falling.
● Do not install near high voltage equipment or in noisy environments.
● Do not make input or output wires longer than necessary, and do not bundle withpower supply wiring. This may cause a malfunction.

■ Precautions during use● Connect the equipment to ground and operate at the rated power supply voltage.
● When connecting loads to the output terminals on the terminal block on the rear panel,
do not exceed the rated load. Exceeding the rated load may cause a failure.
● If an external device connected to the +24V DC output or other input or output terminals on the terminal block on the rear panel is affected by electromagnetic induction
effects, such as a relay or a coil for an electromagnetic valve, use noise countermeasures such as diodes for absorbing reverse voltage. If noise countermeasures are notused, this may be the cause of malfunction or failure.
● Do not connect the +24V DC terminal to any of the output terminals (COMP, VALVE,
BZ, ER BZ) or ground terminals on the terminal block on the rear panel. This connection will cause failure of the unit.
● Do not connect the +24V DC terminal to any of the input terminals (RESET, SET) of
the terminal block on the rear panel. This connection will cause failure of the unit.
● When using the functions of the equipment for external equipment with an external
power supply, make the ground terminals common. If ground terminals are not common, this may cause malfunction or failure.
● Do not apply voltage to the input terminals or output terminals. Connection to voltage
may cause a failure.
● Do not change For/Rev SW while your running the screwdriver by either pressing
Lever SW, for Lever start type, or pushing the screwdriver, for Push start type.
It may cause either wrong count or damage internal SW of screwdriver.
When you change For/Rev SW, stop pressing the Lever or stop pushing the screwdriver and wait until motor stops.
● Use in a temperature range from 5℃ - 40℃ and at a humidity of less than 80% (freefrom condensation).
● Hold the plug when attaching or removing a power cord or screwdriver cord.
● Do not drag the cords or allow them to come into contact with oil or sharp edges, etc.,
or to come underneath heavy objects. This may cause a break or failure.
● If the electric screwdriver locks up, or if there is an overload, the overload protection
function operates. If the overload protection operates several times, it may be because- 3 -the work exceeds the load capability of this equipment or the electric screwdriver. If it
is being used correctly and the overload protection is actuated frequently, immediately
stop use, turn off the main power switch, remove the power supply cord from the outlet
and return the equipment to the supplying dealer.
● If overheating occurs, turn off the main power switch, remove the power supply cordfrom the outlet and allow the equipment to cool naturally. After cooling, if the unit overheats while being used again, immediately stop use, turn off the main power switch,
remove the power supply cord from the AC outlet and return the equipment to the supplying dealer.
● When tightening screws in plastics and other materials that store static electricity
easily, discharge any static electricity prior to starting work. If static electricity is notdischarged, it may cause a malfunction due to static electricity flowing from the tip ofthe bit.
● Do not expose to severe shock such as dropping.
● Do not connect other makers' electric screwdrivers, except for HIOS inc., . This may
cause a failure.
● When equipment will not be used for a long period, turn off the main power switch andremove the plug from the power outlet.
● Do not disassemble or modify the design of the equipment. This may cause a failure.
In this case, the warranty may be voided and you may not be able to get the equipment repaired.

■ Specification
Power supply model number
Input Power Supply
Primary

Fuse capacity(Inside AC inlet)

Power consumption

BLOP-STC 3 • CLT-70STC 3
AC100-240V
10A/250V (one spare)
15W under no load
HI: 30V DC

SecondaryOutput voltage

LOW: 20V DC

2 stage

Overload protection function included
External dimensions* (mm)

127(W) × 208(D) × 76(H)Weight (kg)1.8

AC cord length
Attachments

AC 100V Specification : 1.8m (Standard 3L3P)
AC 220V specification : 1.8m (based on specification)
Operator's manual 1 copy, one AC power supply cord
Crimp contacts, 8 pieces* External dimensions do not include protruding points such as screws and terminal block.

- 4 -■ Compatible screwdriver
BLOP-STC 3
compatible driver
BLG-4000ZERO1, BLG-5000ZERO1 series
BLG-4000BC2, BLG-5000BC2 series
BLG-4000BC1, BLG-5000BC1 series
BLG-4000-OPC, BLG-5000-OPC serirs
BL-2000-OPC, BL-3000-OPC
BL-5000-OPC, BL-5020-OPC,
BL-7000-OPC

Numberof controllable
units

1

CLT-70STC 3
compatible driver
CL-2000 CL-3000 CL-4000
CL-6000 CL-6500 CL-7000
α-4500 α-5000 α-6500
SS-2000 SS-3000 SS-4000
SS-6500 SS-7000

Numberof controllable
units

1

■ Primary functions and description of terms
1. Confirmation of tightening• To confirm that a screw is reliably tight and to perform additional tightening, tighten fora 2nd and 3rd time after tightening for the first time. This is also referred to as secondtightening and additional tightening.

2. Torque-up• Refers to final tightening of the screw where the torque reaches the torque tightening
setting and the electric screwdriver clutch disengages.
• This device defines the first torque-up after the normal rotation* count timer stops as
the torque- up for the finish of screw tightening. Set the count timer so that it does notcount down for torque-ups used for confirmation tightening.
* Normal rotation count timer is abbreviated to count timer in the rest of this document.

3. Input type• The signal input method for this equipment is a photo coupler input. The maximum
input current is of 10 mA.
• When connecting an open collector, connect the collector to the input terminal and theemitter to the GND terminal.
<Caution>
Do not apply voltage to the input terminals.
Add a diode or equivalent to relay coils that are connected to inputs to absorb reverse
voltage.
Provide some type of noise reduction measures when using external devices. (See Fig.
1, p. 20)

4. Output type• The signal output type for this equipment is an open collector output with a maximum
rated load of 30V DC/80 mA.
- 5 -<Caution>
Do not apply voltage to the output terminals.
For use of external equipment with relays or solenoid valve coils, add a diode, etc., toabsorb reverse voltage.

5. Overload protection function• The overload protection unit of this equipment interrupts the output if a high current
caused by overload, for example due to locking of the electric screwdriver, flows for longer than a stipulated period and is intended to protect this unit and the electric screwdriver.
• If the overload protection function operates, turn the power off and let the unit rest forone minute or longer, and then turn the unit back on.
<Caution>If the overload protection function operates several times, it may be because the work
exceeds the load capability of this equipment or the electric screwdriver.

6. Finish of screw tightening vs. completion of screw tightening• In this operator's manual, "finish of screw tightening" refers to normal tightening of one
screw.
• In this operator's manual "completion of screw tightening" refers to normal tightening
work that is performed for 1 work piece.

7. Electric screwdriver operation control function• The counter mode and multiple counter mode for this equipment are functions that
permit or prohibit operation of the electric screwdriver based on a set signal.

8. Counter mode
• Operating mode where the set number of screws to be tightened is displayed, and thisdisplay is reduced by 1 each time a screw is tightened.

9. Multiple counter mode
• In addition to the counter mode function, this is an operating mode for using relays for
multiple electric screwdrivers that are set at different torques or use different bits for 1
work piece.
• Connect an equivalent number of electric screwdrivers and main units using a daisy
chain method. (See Fig. 2, p. 22).
<Caution>
When using an electric screwdriver in its order of operation, the other electric screwdrivers will not work and their operation is prevented.

- 6 -■ Description of name and function for each section<Front Panel>
Operatingdisplay LED

Number of screws
display
Reset switch

Function switch (F3)* Metal connector

Function switch (F2)Function switch (F1)

HI/LOW
switchPower supply
main switch<Description of front panel>● Main power switch (POWER)• Turns the power supply on and off.
• When the power supply is “on”, the LED inside the switch lights.
• The protection circuit automatically operates and turns off the power supply if the electric screwdriver locks and causes an overload.
In this case, turn off the main power switch and turn it back on after one minute.
If this measure fails, please check the fuse.
If the fuse has failed, fit a replacement fuse.
Spare fuses are stored inside the AC inlet (rear panel).
(Rear panel)● HI/LOW switch (switching of rotational speed) (HI/LOW)• Sets the output voltage to high or low.
• This switch changes the rotational speed of the electricscrewdriver.
● Metal connector (DRIVER)
Spare fuses• Connects the driver cord.

• BLOP-STC 3 uses a 6P (pin) connector type and CLT-70STC 3 uses a 5P (pin).
- 7 -● Operating display LED• Lights green when the power is switched on.
• Lights orange when operation of the electric screwdriver is enabled.
● Number of screws display• Displays the set number of screws to be tightened initially and displays the remaining
number of screws to be tightened after counting starts.
• Each time a screw is tightened, the remaining number of screws to be tightened isreduced by one.
● Reset switch (RESET)• This resets the counter functions, interrupts output of the valve signal and releases thework piece held by an external device.
• If operated during or after setting the set switch, the display returns to the number thatwas set.
• Performs the same function as the reset on the terminal block on the rear panel.
● Function switch (F1)
• Enters change function mode if pressed for more than 1 second after reset (Display " ").
• Pressing the button for longer than 1 second while in Change Function Mode will cause
a buzzer to sound, shutting down the Change Function Mode.
● Function switch (F2, F3) (x10, x1 Setting Switch)• Numbers increase in increments of 1 as the button is pressed.
A limit may be imposed depending on the setting being changed.
1) Count Setting Mode (Display " ")• Set the number of screws to be tightened from 1 to 99.
• Set the position for 10 and 1 .
A setting of 00 cannot be entered (warning buzzer will sound).
2) CN-T (Count Timer) Setting Mode (Display " ")• Setting range from 0.01 second to 0.99 second.
• This SW setting prevents counting the second tightening of a screw due to confirmation
or additional tightening.
• The buzzer will sound for a short time while countdown is possible.
Use the buzzer while confirming the tightness of screws that have been tightened as a
guide to setting the count timer operating time.
(The screwdriver will only operate while the count timer is running, regardless of othersettings)- 8 -3) WS-T (Work Set Timer) Setting Mode (Display " ")• Setting range from 0.1 second to 3.9 seconds.
• This setting changes the time allotted until the screwdriver is operational, as well as
generating a valve signal when the set signal is received by the terminal block.
• Use the time taken for the LED to light after receiving the set signal as a guide to setting the Work Set Timer.
4) WR-T VR (Work Set Timer) Setting Mode (Display " ")• Setting range from 0.1 second to 3.9 seconds.
• Set the time between the end of the valve signal after work has been completed, andthe time for which the screwdriver is not operational.
• Use the time taken between the start and end of the buzzer sound after work has been
completed, as a guide to setting the Work Reset Timer.
5) REV-T (Reverse Timer) Setting Mode (Display " ")     for BLOP-STC 3➜• Setting range from 0.1 second to 1.0 second.
• Set the time taken until reverse counting starts.
• Use the time taken to the start reverse counting as a guide to setting the Work Reset
Timer.
6) System Setting Mode (Display " ")• Settings for the following features are available.
a) Controls display of remaining number of screws, see page 12 : ON=display,
OFF=no displayb) Controls buzzer sound: ON=buzzer noise, OFF=no buzzer noisec) Controls reverse count: ON=on, OFF=offd) Controls the normal counter operating mode with a signal on set terminal, see page
10 : ON=on, OFF=offe) Controls buzzer sound during torque-up: ON=on, OFF=offf ) Stops all counting features: power supply only
Note: REV-T(Reverse Timer) is valid only for BL-OPC and BLG-OPC type screwdrivers.
* Reverse Timer is to define the time wether count-up or not while reversing the screwdriver.
* The counter count-up when the screwdriver is reversed longer than this timer.
<Caution>• Note: Even the slightest reverse rotation will be considered as loosening and result in acount-up from the last screw of the operation with a count of 00, regardless of the time
set for the reverse count timer.
• The reverse count feature cancels the countdown of the preceding torque-up operation.
Once reverse count-up has started, further count-up will not occur until count-downfrom a normal rotation torque-up operation has occurred.
- 9 -<Rear Panel>

AC inletCOMP
terminalResetterminal

Set terminal
Ground terminal

Fuses and sparefuses+24V DCterminal

Valveterminal

Buzzerterminal

Error buzzer
terminal<Description of rear panel>● Ground terminal (GND)• Ground terminal● Set terminal (SET)• Input terminal for work set signal.
• After the period set for the work set timer elapses from input of the set signal, the operation LED is turned on and operation permission is provided for the electric screwdriver. The VALVE signal is generated at the same time.
• Connect the detection switch so that there is a set signal input when there is no voltage
between the set terminal and the ground terminal.
<Caution>
In order to prevent incorrect operation, operation of the electric screwdriver is not permitted until after the operating display LED lights orange.
● Reset terminal (RESET)• Input terminal for reset signal.
• This resets the counter functions, interrupts generation of the valve signal and releases
the work piece being held by an external device.
- 10 -

• Display is renewed when reset terminal and ground terminal are connected during or
after setting of the count set switch.
• Performs the same function as the reset on the front panel.
• Connect the reset switch so that there is an input on the reset signal when there is no
voltage between the reset terminal and the ground terminal.
● COMP terminal (COMP)• Output terminal for the completion of work COMP signal (completion of work).
• Output for 0.1 second after work reset timer stops.
• The output type is open collector output, and the maximum rated load is 30V DC/80
mA.
• Connects the total counter to permit counting of the number of work pieces completed.
● + 24V DC terminal• Power supply terminal for external devices. The power supply capability has a maximum rated output of 24V DC/0.2A.
● Valve terminal (VALVE)• Output terminal for control signal of external devices.
• Use this to control a solenoid valve (24V DC) for an external device used to fix workpieces in place.
• Connect the (+) terminal of the solenoid valve for the external device to the +24V DC
terminal, and the solenoid valve ground terminal to the valve terminal.
• When an external device operates at a different voltage, connect the devices to a common ground and use an external power supply.
• Add a diode to the solenoid valve of external devices to absorb reverse voltage.
• The output type is open collector output, and the maximum rated load is 30V DC/80
mA.
● Buzzer terminal (BZ)
• Similar to the completion of work buzzer, signal output is synchronized with the work
reset timer.
• The output of the BZ terminal is provided regardless of the setting of the mode switch.
• When a separate power supply is used for the external device, connect the devices to acommon ground and use an external power supply.
• Add a diode to the solenoid valve of external devices to absorb reverse voltage.
• The output type is open collector output, and the maximum rated load is 30V DC/80
mA.
● Error buzzer terminal (ER BZ)• Generated if the work set signal is interrupted, even for an instant, prior to completionof screw tightening.
- 11 -

• However, operation of this device can be actuated normally by the number of screws
remaining to be tightened for completion.
• ER BZ output does not stop until there is a reset or count-down is completed.
• When a separate power supply is used for the external device, connect the devices to acommon ground and use an external power supply.
• Add a diode to the solenoid valve of external devices to absorb reverse voltage.
• The output type is open collector output, and the maximum rated load is 30V DC/80
mA.

- 12 -

<Function Setting Table>- 13 -

■ Initial settings*

Initial settings use the counter mode as an example, however settings other than
MODE are performed in the same manner. Set the initial settings prior to use for the
first time, and perform MODE settings to suit any following work.

1. Connections
1) Connect the screwdriver cord to the metal connector of the main unit.
2) Connect the unit's power supply cord to an outlet that supplies the rated power (ACpower outlet), and then connect to ground.

2. Setup instructions
1) Confirm MODE settings (factory settings)• Turn the main power switch on while pressing the F1 switch.
(If the unit is already switched on, press the F1 and Reset switches together, before
releasing the Reset switch only)
A buzzer (beeping sound) will sound with the F1 switch. Continue pressing the switch (for1 second or more) until " " is shown in the F1 display.
2) Press the F1 switch until " " is shown.
• Confirm that "00" is shown in the settings display.
3) Press the Reset switch.

3. Work instructions
1) Turn the main power switch on.
2) Settings for the Work Set Timer• Press the F1 and Reset switches together, before releasing the Reset switch only. A
buzzer (beeping sound) will sound with the F1 switch. Continue pressing the switch (for1 second or more) until " " is shown in the F1 display.
• Use the F1 switch to change to the Adjust Work Set Timer mode (F1 Display " ") andset the timer settings with the x10, x1 switches.
(Setting range from 0.1 second to 3.9 seconds)• After the Work Set Timer operation has completed (time up), the valve signal will be
generated.
(The signal will continue to be generated until the unit is reset or counting is completed)• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The
buzzer will sound twice, and the setting mode will close.
3) Change to Counter Timer Setting mode (F1 Display " ") and set the count timer while
performing confirmation tightening with the x10 and x1 switches.
- 14 -

(Setting range from 0.01 second to 0.99 second)
The buzzer will sound for a short time if a torque-up operation is performed after thecount timer has expired.
While variations between different operators may exist, perform continuous confirmation tightening before setting the time required for work without using a count-down.
(The factory setting for the count timer is 0.15 second)• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The
buzzer will sound twice, and the setting mode will close.
<Caution>• Countdown will not be performed if a count timer operating time longer than the actual
time required for tightening has been set. Take note of this when tightening screws witha short thread.
4) Reverse Counter Timer Settings - for BL• Change to the Reverse Counter Timer Setting mode (F1 Display " "), loosen thescrew, and set the reverse time of the electric screwdriver using the x10, x1 switches atthe point where the screw has been determined to be removed.
(Setting range is from 0.1 second to 1.0 second. The factory setting for the reverse
counter timer is 0.2 second)• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The
buzzer will sound twice and the setting mode will close.
<Caution>• Releasing the start lever after 0.1 second has elapsed for short threaded screws thatare removed in less than 0.1 second of starting reverse rotation can increase the countup by 1.
• Using the screwdriver in the reverse rotation for longer than the time set in the reverse
counter timer will increase the count-up by 1, even if the screw is not actually loosened.
5) Settings for the Work Reset Timer• Change to the Work Reset Timer Setting mode (F1 Display " ") and set the work reset
timer operating time using the x10, x1 switches.
• After the torque-up operation is complete for the final screw on the current work piece,
set the Work Reset Timer to the time taken for the DRV LED (operating display) tochange from orange to green for the current work piece.
• The output of the VALVE signal is stopped when the Work Reset Timer operation iscomplete.
• After the Work Reset Timer operation has stopped, the COMP signal will be generated
for 0.1 second.
• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The- 15 -

buzzer will sound twice, and the setting mode will close.
6) Settings for the Count Set• Change to the Count Setting Mode (F1 Display " ") and set the number of screws tobe tightened for the particular work piece using the x10, x1 switches (Setting range isfrom 1 to 99 screws)• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The
buzzer will sound twice, and the setting mode will close.
7) System Settings• Change to the System Settings mode (F1 Display " ") and set the system settings using the x10, x1 switches.
• Settings for the following features are available.
a) DSP (Controls the display of remaining number of screws: ON=display, OFF=notdisplayed)b) BUZZ (Controls the buzzer sound: ON=buzzer noise, OFF=no buzzer noise)c) RCN-T (Controls the reverse count: ON=on, OFF=off)      for BLOP-STC 3➜d) EVERON (Controls the normal counter operating mode: ON=on, OFF=off)e) TUP BUZZ (Controls the buzzer sound during torque-up: ON=on, OFF=off)f) COUNTER OFF (Stops all counting features: power supply only)• See page 13.
• When settings have been completed, press the F1 switch to move to the next setting.
• When all settings have been completed, press the F1 switch for 1 second or more. The
buzzer will sound twice, and the setting mode will close.

<Caution>• Press the Reset switch if you wish to cancel the process at any time. All changes will
be lost.
This completes the initial settings. Next, determine the operating mode for the actual workand proceed according to the operator's manual.

- 16 -

■ Quick installation
1. Normal power mode
✽ When performing tightening of screws using the equipment as a normal power supply for
an electric screwdriver without using the external device control or counter function.

■ Connections
1) Connect the connector for the screwdriver cord to the metal connector of this equipment.
2) Connect the power supply cord for this device to a power supply that supplies the rated
power (AC outlet), and connect to ground.

■ Setup and work instructions
1) Set 80 in the System Setting Mode (F1 Display " ").
2) Exit the Setting Mode by pressing the F1 switch for longer than 1 second.
3) After work preparations are complete, tighten screws as normal.

2. Continuous counter mode
✽ When the external device control function of this equipment is not used and only thecounting function is used for performing work.
This mode is for cases where work pieces are not fixed and for use of a target count toprevent careless mistakes.

■ Connections
1) Connect the connector for the screwdriver cord to the metal connector of this equipment.
2) Connect the power supply cord for this device to a power supply that supplies the rated
power (AC outlet), and connect to ground.

■ Setup instructions
1) Set F3 "2" (Do not use torque-up buzzer) in System Setting Mode (F1 Display " "), or
F3 "3" (Use torque-up buzzer).
Set F2 "0 - 7" depending on conditions of use.
2) Set the number of screws to be tightened using the Count Setting Mode (F1 Display " ").
3) Set the Counter Timer operating time using the CN-T Setting Mode (F1 Display " ")switch (range of 0.01 second to 0.99 second) while performing confirmation tightening.
4) Exit the Setting Mode by pressing the F1 switch for longer than 1 second.
5) Preparation settings are now complete.
- 17 -

■ Work instructions
1) Turn on the main power switch.
2) Tighten the first screw. The number of screws display is lowered by one.
3) After tightening the set number of screws, tightening of screws is finished.
• The number of screws display reaches “00” and the complete buzzer sounds.
• Afterwards, it is automatically reset and the initial setting for the number of screws totighten is displayed.
• This work can be repeated.

3. Counter mode
✽ Use this mode when controlling an electric screwdriver for each piece of work and fixingof work piece using the external device function.
✽ The total number of work pieces completed can be counted by connecting a commerciallyavailable total counter.

■ Connections
1) Connect the connector for the screwdriver cord to the metal connector of this equipment.
2) Connect the power supply cord for this device to a power supply that supplies the rated
power (AC outlet) and connect to ground.
3) Make connections for each control signal with reference to Fig. 1.

■ Setup instructions
1) Turn on the main power switch.
2) Set 00 in the System Setting Mode (F1 Display " ").
3) Set the number of screws to be tightened using the Count Setting Mode (F1 Display" ").
4) Set the Work Set Timer operating time to suit the work piece using the WS-T Setting
Mode (F1 Display " ") switch (range from 0 second to 3.9 seconds).
5) Set the Counter Timer operating time using the CN-T Setting Mode (F1 Display " ")switch (range of 0.01 second to 0.99 second) while performing confirmation tightening.
6) Set the Work Reset Timer operating time to suit the work piece using the WR-T Setting
Mode (F1 Display " ") switch (range from 0 second to 3.9 seconds).
7) Exit the Setting Mode by pressing the F1 switch for longer than 1 second.
8) Preparation settings are now complete.

- 18 -

■ Work instructions
1) Turn on the main power switch.
2) Input the set signal• The work set timer starts operation.
• The work set timer stops operation.
• The valve signal is generated at the same time.
• Simultaneously, the operating display LED (DRV) is turned on and electric screwdriver
operation is permitted.
3) Finishing of tightening of the first screw.
• Tighten the first screw. The number of screws display is lowered by one.
4) After tightening the set number of screws, tightening of screws is finished.
• The number of screws display changes to “00” and the work reset timer operation
starts.
• Next the work reset timer operation stops.
• The valve signal output stops at the same time.
• Simultaneously, the operating display LED (DRV) is turned off and electric screwdriver
operation is prevented.
• The completion buzzer turns off at the same time.
• The COMP signal is generated for 0.1 second.
5) Next, the unit changes to standby until the set signal is input.
6) The above is repeated.
7) Work is completed.

- 19 -

Fig. 1Work detection
contact switch

Total counter
COMP

RESET

SET

GND

Contact switch
for Reset+24V DC

VALVE

BZ

ER BZ

Solenoid valve
Protection circuit example using a diode method

4. Multiple counter mode
✽ Use this setting when 2 electric screwdrivers with different tightening conditions suchas different torques or bits are to be used in sequence by an operator on a single workpiece.
✽ In the working sequence, when one of the electric screwdrivers is operating, the otherelectric screwdriver is prevented from operating.
✽ The total number of work pieces completed can be counted by connecting a commerciallyavailable total counter. Furthermore, if they are connected using the daisy chain method,
the number of electric screwdrivers can be further increased.
● When using 2 devices, the first is designated “A” and the second “B”.

■ Connections
1) Connect the connector for the screwdriver cord to the metal connector of this equipment.
2) Connect the power supply cord for this device to a power supply that supplies the rated
power (AC outlet), and connect to ground.
3) Make connections for each control signal with reference to Fig. 2.

- 20 -

■ Setup and work instructions
1) Set A using the following procedures.
• Set 20 in the System Setting Mode (F1 Display " ").
• Set the number of screws to be tightened using the Count Setting Mode (F1 Display" ").
• Set the Work Set Timer operating time to suit the work piece using the WS-T Setting
Mode (F1 Display " ") switch (range from 0 second to 3.9 seconds).
• Set the Counter Timer operating time using the CN-T Setting Mode (F1 Display " ")switch (range of 0.01 second to 0.99 second) while performing confirmation tightening.
• Set the Work Reset Timer operating time to 0.0 using the WR-T Setting Mode (F1Display “ ”).
• Exit the Setting Mode by pressing the F1 switch for longer than 1 second.
2) Set B using the following procedures.
• Set 00 in the System Setting Mode (F1 Display " ").
• Set the number of screws to be tightened using the Count Setting Mode (F1 Display" ").
• Set the Work Set Timer operating time to suit the work piece using the WS-T Setting
Mode (F1 Display " ") switch (range from 0 second to 3.9 seconds).
• Set the Counter Timer operating time using the CN-T Setting Mode (F1 Display " ")switch (range of 0.01 second to 0.99 second) while performing confirmation tightening.
• Set the Work Reset Timer operating time to suit the work piece using the WR-T Setting
Mode (F1 Display " ") switch (range from 0 second to 3.9 seconds).
• Exit the Setting Mode by pressing the F1 switch for longer than 1 second.
3) Preparation settings are now complete.

- 21 -

Fig. 2Work detection
contact switch

COMP

RESET

SET

GND

Contact switch
for Reset

A+24V DC

VALVE

BZ

ER BZ

COMP

RESET

SET

GND

+24V DC

VALVE

BZ

ER BZ

B

- 22 -

Total
counter■ Timing Chart① TM-1 (timing chart up through prior to tightening of the final screw)② TM-2 (timing chart when loosening a screw)③ TM-3 (timing chart for tightening of the final screw)④ TM-4 (timing chart for first method of stopping operation of error buzzer)⑤ TM-5 (timing chart for second method of stopping operation of error buzzer)- 23 -

1. TM-1 Timing chart (used for the tightening of screws before final tightening)
1) Turn the power ON.
2) Set the work piece and enter the SET signal.
• If the SET signal changes from ON to OFF while the Work Set Timer is active, the unit
is designed to be fully operational even with the Work Set Timer remaining in the off
position.
3) Start of Work Set Timer.
4) Work Set changed, make fixes.
5) End of Work Set Timer.
6) The red DRV LED on the front panel will light, and the electric screwdriver will become
usable.
7) Start of VALVE signal output.
8) Manually turn ON electric screwdriver with start lever.
9) Start of electric screwdriver operations.
10) Start of Count Timer operations.
11) End of Count Timer operations.
12) Complete tightening of screws, perform torque-up procedure.
13) End of electric screwdriver operations.
14) Count-down from set number of screws. Number of Screws LED decreases by one.
15) Manually turn OFF electric screwdriver with start lever.
16) Manually turn ON electric screwdriver with start lever to perform confirmation tightening.
17) Start of electric screwdriver operations.
18) Start of Count Timer operations.
19) Immediate torque-up operations to perform confirmation tightening.
20) Count Timer is reset during operation for the torque-up procedure.
21) Count-down will not proceed due to torque-up procedures while the Count Timer isoperational.
22) End of electric screwdriver operations.
23)Manually turn OFF electric screwdriver with start lever.

2. TM-2 Timing chart (used for tightening of screws)
1) Select reverse rotation using the FOR/REV SW.
2) Manually turn ON electric screwdriver with start lever.
3) Start of electric screwdriver reverse operations.
- 24 -

4) Start of Reverse Count Timer operations.
5) End of Reverse Count Timer operations.
6) Count-up from set number of screws. Number of Screws LED increases by one.
7) Manually turn OFF electric screwdriver with start lever.
8) End of electric screwdriver reverse operations
9) Select reverse rotation using the FOR/REV SW.
<Caution>• Using the screwdriver in the reverse rotation for longer than the time set in the Reverse
Counter Timer will be considered as a loosened screw, causing the count display tocount-up.
• Be aware that releasing the start lever or repeatedly changing reverse rotation from ON
to OFF in order to loosen the screw within the time set by the Reverse Counter Timer
will not be calculated as a count-up.
• Each previous count-down will be seen as one count-up operation.
• Count-up will not proceed if no screws from the work set are tightened, but are loosened.
* Note that, although the screw may not be loosened, count-up will occur if theelectric screwdriver is operated in reverse. This is because the torque-up signal
after completion of tightening with normal rotation does not exist in reverse rotation.

3. TM-3 Timing chart (used for final tightening)
1) Manually turn ON electric screwdriver with start lever.
2) Start of electric screwdriver operations.
3) Start of Reverse Count Timer operations.
4) End of Reverse Count Timer operations.
5) Torque-up after screw tightening.
6) End of electric screwdriver reverse operations.
7) Count-down from set number of screws. Number of Screws LED will display 00.
8) Start of Work Reset Timer operations.
9) Start of Completion Buzzer.
10) End of Work Reset Timer operations.
11) End of Complete Buzzer.
12) Display LED turns green and the electric screwdriver becomes unusable.
13) End of VALVE signal output.
14) Start of COMP signal output.
- 25 -

15) COMP signal will be generated for 0.1 second before stopping.
16) Manually turn OFF electric screwdriver with start lever.
17) Remove the work piece and cancel the SET signal.
* Operations after completion of screw tightening.
Count reset will be performed via the auto-reset function after completion ofscrew tightening. The unit will be in standby mode until the SET signal from thefollowing Work Set is entered (the electric screwdriver will remain unusable whilein standby mode).
<Caution>• In order to allow the electric screwdriver to become usable while entering the initial SET
signals, the ON and OFF SET signal during the Work Set Timer has no effect on theoperation of the ER BZ signal.
• The ER BZ signal is only generated after the Work Set Timer has been completed andthe SET signal changes from ON to OFF.
• Reverse loosening with the electric screwdriver after the final screw has been tightenedis only possible while the Work Reset Timer is operational and the Work Complete
Buzzer is sounding, and only if loosening of the screws is required after the final screwof the work piece has been tightened.
(Work Reset Timer VR can be adjusted from 0.1 to 3 seconds)• Any reverse rotation at this stage will be considered as an error in the tightening sequence. The slightest reverse rotation (regardless of the Reverse Rotation Count Timersettings) will result in a count-up.
• Normal rotation tightening is possible while the Work Complete Buzzer is sounding,however count-down will not be performed.
• Counting errors may result in using PS-type (push start type) electric screwdrivers totighten screws freely, or repeatedly turning electric screwdrivers ON and OFF for shorttimes for screws with short threads.
Contact our Sales Department if you wish to tighten screws in these situations.

4. TM-4 Timing chart (method 1 for stopping error buzzers)* How to stop a signal being generated from the ER BZ terminal due to a Reset signal.
1) The work set is removed and the SET signal is temporarily OFF.
2) Start of ER BZ output.
3) Reset the system by inputting the RESET signal or manually pressing the RESET SW.
4) DRV LED turns off and the electric screwdriver becomes unusable.
5) End of VALVE signal output.
6) End of ER BZ output.
- 26 -

5. TM-5 Timing chart (method 2 for stopping error buzzers)* How to stop a signal being generated from the ER BZ terminal due to a count-down.
1) The work set is removed and the SET signal is temporarily OFF.
2) Start of ER BZ output.
3) Manually turn ON with start lever.
4) Start of screw tightening with electric screwdriver.
5) Count Timer changes from start to stop.
6) Torque-up, end of screw tightening.
7) End of electric screwdriver operations.
8) Display will show 00.
9) Start of Work Reset Timer.
10) End of Work Reset Timer.
11) DRV LED turns off and the electric screwdriver becomes unusable.
12) End of VALVE signal output.
13) End of ER BZ output.

■ Troubleshooting
Investigate the issue in the table below and, if an irregularity is found, contact the supplying
dealer.
Symptoms
Even if the main powerswitch is turned on, it does
not supply power

Confirmation① Confirm that the power supply cord is connected correctly toa specified voltage outlet.
• If unplugged, and after connecting correctly, turn on the main
power switch again and confirm that the main power switch
LED lamp lights.
② Confirm that the fuse has not failed.
• If the fuse has failed, turn on the main power switch again
and confirm that the main power switch LED lamp lights after
replacing it with a spare.

Unit does not power up evenafter replacing the fuse with

③ Contact the supplying dealer.

a spareIf you have any questions concerning after-sales service, please contact the supplying
dealer.
- 27 -

■ The Following Table Is for China RoHS2
If you are asked by China Customs, please show this table to them.
有害物质名称及含量标识格式
产品中有害物质的名称及含量
有害物質
部件名称

铅（pb）

汞（Hg)

镉（Cd)

六价铬
（CR(VI))

多溴联苯
（PBB）

多溴二苯醚
（PBDE）

电路板总成

×

○

○

○

○

○

外壳

○

○

○

○

○

○

电源电缆

×

○

○

○

○

○

本表格依据 SJ/T 11364 的规定编制。
○ ：表示该有害物质在该部件所有均质材料中的含量均在 GB/T 26572 规定的限量要求以下。
× ：表示该有害物质至少在改部件的某一均质材料中的含量超出 GB/T 26572 规定的限量要求。

In addition, the China RoHS marks also is required at the product and product box.
At the product, you can find it at the bottom and it is marked on the product box.
If you cannot find the mark, please ask your distributor.
In case of emergency, please cut the mark below and stick at the bottom of product andon the product box.
China RoHS mark- 28 -