Atlas Copco MT Focus 400 Instruction sheet

MT Focus 400
Printed Matter No. 9836 6294 01 Control and drive unit
Publication Date 2020-04-16
Valid from Serial No. A5690001
Valid to Serial No. A2509999 Product Instructions
MT FOCUS 400A 8432085000
WARNING
Read all safety warnings and instructions
Failure to follow the safety warnings and instructions may result in
electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference

2© Atlas Copco Industrial Technique AB - 9836 6294 01
Table of Contents
Product Information................................................................................................4
General Information ..........................................................................................4
Safety signal words ...............................................................................4
Warranty ................................................................................................4
Website..................................................................................................4
ServAid ..................................................................................................5
Safety Data Sheets MSDS/SDS............................................................5
Country of Origin ...................................................................................5
Dimensional Drawings...........................................................................5
Overview...........................................................................................................5
Applications ...........................................................................................5
Main parts and functions .......................................................................5
Technical data .......................................................................................6
Technical Product Data .........................................................................6
Accessories ...........................................................................................6
Service Overview..............................................................................................6
Service recommendations .....................................................................6
Installation ...............................................................................................................7
Installation Instructions .....................................................................................7
Basic set-up...........................................................................................7
Connecting accessories ........................................................................8
Mechanical installation of controller.....................................................12
Operation ...............................................................................................................13
Ergonomic guidelines .....................................................................................13
Configuration ..................................................................................................13
Operating Instructions.....................................................................................14
Start .....................................................................................................14
Controller .............................................................................................14
Service ...................................................................................................................18
Preventing ESD problems ..............................................................................18
Maintenance Instructions................................................................................18
Service recommendations ...................................................................18
Maintenance ........................................................................................18
Controller ........................................................................................................19
Opening the cover ...............................................................................19
Changing the front panel .....................................................................19
Changing the display ...........................................................................20
Closing the cover.................................................................................21
Controller software update..............................................................................22
Troubleshooting....................................................................................................23
Controller reference ........................................................................................23
Controller messages............................................................................23

3
© Atlas Copco Industrial Technique AB - 9836 6294 01
Controller system information..............................................................24
Recycling ...............................................................................................................25
Environmental Regulations.............................................................................25

Product Information EN MT Focus 400
4© Atlas Copco Industrial Technique AB - 9836 6294 01
Product Information
General Information
WARNING Risk of Property Damage or Severe Injury
Ensure that you read, understand and follow all instructions before operating the tool. Failure to follow
all the instructions may result in electric shock, fire, property damage and/or severe bodily injury.
►Read all Safety Information delivered together with the different parts of the system.
►Read all Product Instructions for installation, operation and maintenance of the different parts of
the system.
►Read all locally legislated safety regulations regarding the system and parts thereof.
►Save all Safety Information and instructions for future reference.
Safety signal words
The safety signal words Danger, Warning, Caution, and Notice have the following meanings:
DANGER DANGER indicates a hazardous situation which, if not avoided, will result in death or se-
rious injury.
WARNING WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if
not avoided, could result in minor or moderate injury.
NOTICE NOTICE is used to address practices not related to personal injury.
Warranty
■Product warranty will expire 12 months after the product is first taken into use, but will in any case ex-
pire at the latest 13 months after delivery.
■Normal wear and tear on parts is not included within the warranty.
■Normal wear and tear is that which requires a part change or other adjustment/overhaul during
standard tools maintenance typical for that period (expressed in time, operation hours or other-
wise).
■The product warranty relies on the correct use, maintenance, and repair of the tool and its component
parts.
■Damage to parts that occurs as a result of inadequate maintenance or performed by parties other
than Atlas Copco or their Certified Service Partners during the warranty period is not covered by the
warranty.
■To avoid damage or destruction of tool parts, service the tool according to the recommended mainte-
nance schedules and follow the correct instructions.
■Warranty repairs are only performed in Atlas Copco workshops or by Certified Service Partners.
Atlas Copco offers extended warranty and state of the art preventive maintenance through its ToolCover
contracts. For further information contact your local Service representative.
For electrical motors:
■Warranty will only apply when the electric motor has not been opened.
Website
Information concerning our Products, Accessories, Spare Parts and Published Matters can be found on
the Atlas Copco website.
Please visit: www.atlascopco.com.

MT Focus 400 EN Product Information
© Atlas Copco Industrial Technique AB - 9836 6294 01 5
ServAid
ServAid is a portal that is continuously updated and contains Technical Information, such as:
■Regulatory and Safety Information
■Technical Data
■Installation, Operation and Service Instructions
■Spare Parts Lists
■Accessories
■Dimensional Drawings
Please visit: https://servaid.atlascopco.com.
For further Technical Information, please contact your local Atlas Copco representative.
Safety Data Sheets MSDS/SDS
The Safety Data Sheets describe the chemical products sold by Atlas Copco.
Please consult the Atlas Copco website for more information www.atlascopco.com/sds.
Country of Origin
For the Country of Origin, please refer to the information on the product label.
Dimensional Drawings
Dimensions Drawings can be found either in the Dimensional Drawings Archive, or on ServAid.
Please visit: http://webbox.atlascopco.com/webbox/dimdrw or https://servaid.atlascopco.com.
Overview
Applications
The MicroTorque screw fastening systems are ultra low-torque applications.
Main parts and functions
The controller has three buttons and a display, for setting of tightening parameters.

Product Information EN MT Focus 400
6© Atlas Copco Industrial Technique AB - 9836 6294 01
Technical data
Ordering No 8432085000
Overall width mm
Voltage V
Power 240 W
Motor voltage V
Motor power W
Weight kg
Weight lb
Technical Product Data
Technical Product Data can be found on either ServAid, or the Atlas Copco website.
Please visit: https://servaid.atlascopco.com or www.atlascopco.com.
Accessories
Included accessories
ToolsTalk MT 8432 0831 30
USB Cable 4222 1238 02
Connector assembly 4216 2130 80
RS232 Cable 4216 2174 80
Optional accessories
Power supply 8432 0830 93
Wall bracket for MT Focus 400 8432 0833 83
I/O adapter 4216 2179 80
Remote control 8432 0830 08
I/O-Y cable 8432 0831 99
Service Overview
Service recommendations
Preventive maintenance is recommended at regular intervals. See the detailed information on preventive
maintenance. If the product is not working properly, take it out of service and inspect it.
If no detailed information about preventive maintenance is included, follow these general guidelines:
■Replace any defective or worn parts

MT Focus 400 EN Installation
© Atlas Copco Industrial Technique AB - 9836 6294 01 7
Installation
Installation Instructions
Basic set-up
NOTICE Always disconnect the USB connector before connecting or disconnecting the power supply plug.
NOTE
■Some functions in the controller, such as the built-in clock, are powered by a built-in battery. The
charging time is 5 hours and the function is maintained for 100 days if not recharged.
Controller connectors
1. USB: PC, connected with a USB cable.
2. POWER: Power supply connection.
3. RS232-C: Serial interface, for various accessories.
4. VP: Vacuum pump connection.
5. Tool, connected with the tool cable.
6. I/O: Single digital input for special purpose.
7. DIGITAL I/O: Connection for various accessories.
8. Connection for ESD protective wrist strap

Installation EN MT Focus 400
8© Atlas Copco Industrial Technique AB - 9836 6294 01
NOTE
■The torque measuring function in the controller is sensitive to strong magnetic fields. Do not
place magnetic items, for example bits, on or near the controller.
NOTICE Make sure the cable is not bent more than a radious of 55 mm (2.2 in).
Connecting accessories
CAUTION
■The internal 24 V supply can be loaded with max 700 mA. If the sum of all loads tend to exceed this
value - use an external +24 V source.
Serial interface (RS232-C)
3-pole socket connector for the serial interface.
COM port settings: 115200Baud, 8Data bits, 1Stop bit, No parity, No handshake.
Use a 3-pole pin plug from the Binder 719 Series.

MT Focus 400 EN Installation
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Pin Signal Description
1 TxD Transmitted data
2 GND Data ground
3 RxD Received data
Vacuum pump output (VP)
5-pole socket connector for the connection of Atlas Copco Vacuum pump VPX6 (24 V, 600 mA).
Use a 5-pole pin plug from the Binder 719 Series.
Pin Output Description Default
1 +24 V Internal +24 V
2 +24 V Internal +24 V
3 Pump on Digital output
4 GND (0 V) Internal 0 V
5 GND (0 V) Internal 0 V
Configurable single input (I/O)
5-pole pin connector, configurable, e.g. as input for foot switch.
For information on configuration of the input, see ToolsTalk MT - Reference - I/O status.
Use a 5-pole socket plug from the Binder 719 Series.
NOTICE
■This input is not opto-isolated.
Input resistance 10 kΩ
NOTICE
■If used to reset the tool, the signal duration must be more than 40 ms.
Pin Output Description Default
1 +24 V Internal +24 V
2 GND (0 V) 0 V output
3
4
5 Digital in Digital input Start tightening
A 2 wire switch (e.g. a reed switch) is connected to pin 1 and 5.
A sensor with PNP output is connected to pin 1, 2 and 5.

Installation EN MT Focus 400
10 © Atlas Copco Industrial Technique AB - 9836 6294 01
Configurable digital inputs and outputs (DIGITAL I/O)
15-pole D-sub socket connector for configurable signals.
Use a 15-pole D-sub pin plug.
Voltage range 11-30 VDC
Input resistance >5 kΩ
Output resistance 23-35 Ω
Output current protection 120 mA max. peak/continuous current, over current
protected.
Input response time <25 ms (with de-bouncing filter)
Output response time <5 ms
NOTICE
■If the max. current is exceeded, the output voltage will switch off. This can be resolved by switch-
ing the output off and on again.
Pin I/O Description Default
1 INT 24V Internal 24 V supply
2 EXT-OUT-COM0 External common line for
outputs
3 EXT-OUT0 Configurable Busy
4 EXT-OUT1 Configurable Tightening OK
5 EXT-OUT2 Configurable Tightening NOK
6 EXT-OUT3 Configurable Batch OK
7 Not used
8 EXT-IN0 Configurable Start tightening
9 EXT-IN1 Configurable Reset tool
10 EXT-IN2 Configurable Start loosening
11 EXT-IN3 Configurable Reset batch
12 Not used
13 Not used
14 EXT-IN-COM0 External common line for
inputs
15 DGND Internal ground
For information on configuration on the outputs and inputs, see ToolsTalk MT - Reference - I/O status.
NOTICE
■All inputs are opto isolated.
■If used to reset the tool, the signal duration must be more than 40 ms.
■Interface connection can be connected in PNP mode (source type, positive logic), or in NPN
mode (sink type, negative logic).

MT Focus 400 EN Installation
© Atlas Copco Industrial Technique AB - 9836 6294 01 11
PNP mode
I/O Description
INT -24V +24 V output
EXT-OUT-COM0 Connect to INT +24V
or external +24 V
(not at the same time)
EXT-OUT0...EXT- OUT3 The outputs will be connected to the external +24 V
when activated.
EXT-IN0...EXT- IN3 The inputs will be activated by a +24 V signal applied
to the input pin.
EXT-IN-COM0 Connect to DGND
or external 0 V.
DGND 0 V output
NPN mode
I/O Description
INT -24V +24 V output
EXT-OUT-COM0 Connect to DGND
or external 0 V.
EXT-OUT0...EXT- OUT3 The outputs will be connected to the external 0 V
when activated.
EXT-IN0...EXT- IN3 The inputs will be activated by a 0 V signal applied to
the input pin.

Installation EN MT Focus 400
12 © Atlas Copco Industrial Technique AB - 9836 6294 01
I/O Description
EXT-IN-COM0 Connect to INT +24V
or external +24 V
(not at the same time)
DGND 0 V output
Mechanical installation of controller
The controller can be used in three ways:
■Standing on a work bench.
■Attached to a vertical surface using the wall bracket.
■Attached to a vertical surface using screws from the rear side.
Wall bracket attachment
1. Attach the bracket to the surface using four 5 mm screws.
2. Pull out the plunger of the underside of the bracket and slide the controller into the bracket.
3. The controller is held in placed by the plunger when released.
Rear screw attachment
1. Remove the two crews holding the controller foot.
2. Drill two 5 mm holes in the surface, corresponding to the holes in the controller rear side. Leave
space over the holes for the connectors and the sound opening.
3. Attach the controller to the surface, preferrably with the removed screws.
NOTICE
■The screws must not protrude into the controller more than 10 mm.

MT Focus 400 EN Operation
© Atlas Copco Industrial Technique AB - 9836 6294 01 13
Operation
Ergonomic guidelines
Consider your workstation as you read through this list of general ergonomic guidelines and see if you can
identify areas for improvement in posture, component placement, or work environment.
■Take frequent breaks and change work positions frequently.
■Adapt the workstation area to your needs and the work task.
■Adjust for convenient reach range by determining where parts or tools should be located to avoid
static load.
■Use workstation equipment such as tables and chairs appropriate for the work task.
■Avoid work positions above shoulder level or with static holding during assembly operations.
■When working above shoulder level, reduce the load on the static muscles by reducing the weight
of the tool, using for example torque arms, hose reels or weight balancers. You can also reduce
the load on the static muscles by holding the tool close to the body.
■Make sure to take frequent breaks.
■Avoid extreme arm or wrist postures, particularly for operations requiring a degree of force.
■Adjust for convenient field of vision by minimizing movement of the eyes and head during the work
task.
■Use the appropriate lighting for the work task.
■Select the appropriate tool for the work task.
■Use ear protection equipment in noisy environments.
■Use high-quality inserted tools or consumables to minimize exposure to excessive levels of vibration.
■Minimize exposure to reaction forces.
■When cutting:
A cut-off wheel can get stuck if the wheel is either bent or if it is not guided properly. Make sure to
use the correct flanges for cut-off wheels and avoid bending the wheel during cut-off operation.
■When drilling:
The drill might stall when the drill bit breaks through. Makes sure you use support handles if the
stall torque is too high. The safety standard ISO11148 part 3 recommends using something to ab-
sorb the reaction torque above 10 Nm for pistol grip tools and 4 Nm for straight tools.
■When using direct-driven screw or nutrunners:
Reaction forces depend on tool setting and joint characteristics. The ability to bear reaction forces
depends on the operator’s strength and posture. Adapt the torque setting to the operator's strength
and posture and use a torque arm or reaction bar if the torque is too high.
■Use dust extraction system or mouth protection mask in dusty environments.
Configuration
Please refer to User guide 9836 5637 01: ToolsTalk MT.

Operation EN MT Focus 400
14 © Atlas Copco Industrial Technique AB - 9836 6294 01
Operating Instructions
Start
Press and hold the OK button (A) on the controller until the display lights up.
The system initializes. All basic functions are checked and displayed during initialization.
CAUTION
■The spindle rotates when the system is switched on and the tool is calibrating.
After successful initialization, the system is ready for use.
Controller
NOTICE
■PSets are stored in the controller. The controller is initially programmed with a number of default
PSets that will work on any tool type.
■If a PSet is changed in any way, it will be assigned to the connected tool type. If a tool of a differ-
ent type is connected, this PSet can not be used. Another PSet must then be choosen, or the
PSet must be reconfigured, either in Tools Talk MT, or using Auto-set.
Buttons and indicator
UP button:
■Enter the system menu
■Move the selection up
DOWN button:
■Enter the system menu
■Move the selection down
OK button:
■Switch the controller on and off
■Confirm the selection
STATUS indicator:
■Green - Tightening OK
■Blue - Batch finished
■Red - Error

MT Focus 400 EN Operation
© Atlas Copco Industrial Technique AB - 9836 6294 01 15
Auto-set
1. Press either the UP or the DOWN button
2. Select Autoset in the menu.
3. Press OK.
4. If required, enter the password. Use the OK button to select a position and the UP or the DOWN but-
tons to select the number.
5. Set the required tightening torque. Use the UP or the DOWN buttons to set the torque.
6. Press OK.
7. Check that the correct PSet is shown. If so, select yes and press OK.
If not, return by selecting no and pressing OK.
8. Perform three tightenings.
NOTICE
■Each tightening should be done using a new joint.
9. If tightenings are not successful, repeat the tightening. if all tightenings are successful, Auto-set
done is shown.
10. If the speed is to be changed, press the DOWN button and use the UP or the DOWN buttons to set
the speed. Press OK to continue.
11. If the min. angle is to be changed, use the UP or the DOWN buttons to set the min. angle. Press OK
to continue.
12. If max. angle is to be changed, use the UP or the DOWN buttons to set the max. angle. Press OK to
continue.
13. If the trigger torque for angle counting is to be changed, use the UP or the DOWN buttons to set the
trigger torque for angle counting. Press OK to continue.
14. In order to revise the settings, repeat steps 10-13.
15. Press OK to finish.
Select program set (PSet)
1. Press either the UP or the DOWN button
2. Select Select PSet in the menu.
3. Press OK.
4. If required, enter the password. Use the OK button to select a position and the UP or the DOWN but-
tons to select the number.
5. Select the required program set.
6. Press OK.

Operation EN MT Focus 400
16 © Atlas Copco Industrial Technique AB - 9836 6294 01
Batch control
To set the batch size:
1. Press either the UP or the DOWN button
2. Select Batch control in the menu.
3. Press OK.
4. Select Set batch size in the menu.
5. Press OK.
6. If required, enter the password. Use the OK button to select a position and the UP or the DOWN but-
tons to select the number.
7. Select the number of tightenings in the batch.
8. Press OK.
To increment the batch number:
1. Press either the UP or the DOWN button
2. Select Batch control in the menu.
3. Press OK.
4. Select Increment batch in the menu.
5. Press OK.
To decrement the batch number:
1. Press either the UP or the DOWN button
2. Select Batch control in the menu.
3. Press OK.
4. Select Decrement batch in the menu.
5. Press OK.
To reset the batch number:
1. Press either the UP or the DOWN button
2. Select Batch control in the menu.
3. Press OK.
4. Select Reset batch in the menu.
5. Press OK.
Auto-start
If Auto-start has been enabled from ToolsTalk, an extra menu option, Auto-start, appears.
To activate Auto-start:
1. Select Auto-start control in the menu.
2. Press OK.
3. Select Auto-start ON.
4. Press OK.

MT Focus 400 EN Operation
© Atlas Copco Industrial Technique AB - 9836 6294 01 17
To de-activate Auto-start:
1. Select Auto-start control in the menu.
2. Press OK.
3. Select Auto-start OFF.
4. Press OK.
To temporarily disable Auto-start:
Put a non-magnetic object in the hole (A) on the front of the controller, for example a pencil.
The Auto-start function will resume when the object is removed.

Service EN MT Focus 400
18 © Atlas Copco Industrial Technique AB - 9836 6294 01
Service
Preventing ESD problems
The components inside the tool and controller are sensitive to electrostatic discharge. To avoid future mal-
function, make sure that service and maintenance is carried out in an ESD approved work environment.
The figure below shows an example of an appropriate service work station.
Maintenance Instructions
Service recommendations
Preventive maintenance is recommended at regular intervals. See the detailed information on preventive
maintenance. If the product is not working properly, take it out of service and inspect it.
If no detailed information about preventive maintenance is included, follow these general guidelines:
■Replace any defective or worn parts
Maintenance
There are certain general maintenance procedures you should perform to keep your MicroTorque system
clean and operating at its efficiency.
The system is a sophisticated instrument with many sensitive components.
A built-in service reminder can be configured in Tools Talk MT. When it is time to perform service on the
tool, a reminder is shown on the controller display.
Preventive Maintenance:
■The system should never be exposed to harsh environment with rapid temperature changes or ex-
cessive dust.
■Never expose the system to excessive vibration or high humidity.
■Prevent overheating by use only in the permitted temperature range. Do not cover tool or controller or
power supply.
■Cleaning of the tool and controller should be done regularly, but not with aggressive cleanser.
■Check wear of the bit regularly.
■Replace worn cables immediately.
Tools which have been opened by anyone else than Atlas Copco Industrial Technique AB, will not be ser-
viced.
Calibration and preventive maintenance is recommended at regular intervals once per year or after maxi-
mum 1.000.000 tightenings depending on which occurs sooner.
More frequent overhaul may be needed if the machine is used in heavy-duty operations.
If the machine is not working properly, it should immediately be taken away for inspection.

MT Focus 400 EN Service
© Atlas Copco Industrial Technique AB - 9836 6294 01 19
Controller
Required tools:
■Screwdriver T8
■Small flat-bladed screwdriver
Opening the cover
1. Remove the four screws indicated by circles.
Do not open the unit when faced down.
2. With the unit in upright position, open the housing carefully to the left.
Do not strain the flat cable from the front.
Do not loose the USB isolator.
Changing the front panel
1. Open the connector using a small screwdriver and carefully pull out the flat cable.
2. Unscrew the tool holder.
3. ■Peel off the front panel. You can press from the inside on the display window.
■Clean the inside surface of the cover with spirit.
Do not loose the light pipe.
4. Peel off the protection covers from the self-adhesive panel.
■One cover protecting the self-adhesive sections.
■One cover protecting the inside of the transparent window.
■One cover protecting the outside of the transparent window.
5. Route the flat cable from the new front panel through the hole in the housing, attach the new front
panel to the housing.
Make sure the light pipe is correctly positioned.
6. Mount the tool holder.
7. Insert the flat cable into the connector, and close the connector by pressing in the movable part using
a small screwdriver.

Service EN MT Focus 400
20 © Atlas Copco Industrial Technique AB - 9836 6294 01
Changing the display
1. Open the connector by folding the movable part up and forward, and carefully pull out the flat cable.
2. Disconnect the white connector by pulling straight up.
3. Remove the display.
Do not loose the spacers.
4. Make sure the four spacers are correctly positioned and put the new display in position. The small
pins at the bottom of the display should rest in the holes of the bottom spacers.
5. Connect the white connector.
6. Insert the flat cable into the connector.
Make sure the cable runs under the small tabs at each side of the connector
7. Close the connector by turning the movable part back inte position.