Efka AB611A5021 User manual

FRANKL & KIRCHNER EFKA OF AMERICA INC. EFKA ELECTRONIC MOTORS
GMBH & CO KG SINGAPORE PTE. LTD.
CONTROL AB611A5021
AB611A5022
Operating manual
With parameter list
-Putting into Service
-Settings
-Functional Description
-Connection Diagrams
-Timing Diagrams
No. 402442 English

Important Notes
The particulars used in various figures and tables, such as type, program number, speed, etc.,
serve as examples. They may differ from those in your display.
For current versions of the Instructions for Use and Lists of Parameters, necessary for operating EFKA drives
in accordance with regulations, please refer to the EFKA web site www.efka.net, page “Downloads”.
On our web site, you will also find the following supplementary instructions for this control:
General instructions for use and programming
Use with USB Memory Stick
Adapter cords

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CONTENTS Page
1Range of Applications 5
1.1 Use in Accordance with Regulations 5
2Scope of Supply 6
2.1 Special Accessories 6
2.1.1 Adapter Cords for Special Machines 7
3Putting into Service 7
4Setting and Putting into Service with the Aid of the Fast Installation Routine (SIR) 8
5Setting the Basic Functions 11
5.1 Direction of motor rotation 11
5.2 Use of a HSM001 Hall Sensor Module or IPG... Pulse Encoder 11
5.3 Transmission Ratio 12
5.4 Selection of Functional Sequences (Thread Trimming Operations) 12
5.5 Functions of the Keys Inputs in1...in7 12
5.6 Positioning speed 12
5.7 Maximum Speed Compatible with the Sewing Machine 13
5.8 Maximum speed 13
5.9 Positions 13
5.9.1 Setting the reference position (Parameter 170) 14
5.9.2 Setting the positions (Parameter 270 = 0 or 6) 14
5.10 Control display of signal position and stop position 15
5.11 Positioning shift 15
5.12 Braking Characteristics 15
5.13 Braking Power at Standstill 15
5.14 Starting Characteristics 16
5.15 Operating hours counter 16
5.15.1 Set and Reset Operating Hours Counter 17
5.15.2 Total Operating Hours Display 17
6Functions 17
6.1 First Stitch after Power On 17
6.2 Softstart 17
6.2.1 Softstart speed 17
6.2.2 Softstart stitches 18
6.3 Sewing foot lifting 18
6.4 Reverse motor rotation 19
6.5 Unlocking the Chain (Mode 5/6/7) 19
6.6 Machine run blockage 20
6.7 Thread trimming operation 20
6.7.1 Thread Trimmer/Thread Wiper (Lockstitch Modes) 20
6.7.2 Trimming speed 21
6.7.3 Chainstitch thread cutter (var. modes) 21
6.7.4 Chainstitch Machine Trimming Signal Times 21
6.8 Overlock Machine Functions (Mode 7) 21
6.8.1 Start and End Counts 22
6.9 Tape Cutter/Fast Scissors (Modes 6/7) 22

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6.9.1 Tape Cutter/Fast Scissors in Mode 6 22
6.9.2 Tape Cutter/Fast Scissors in Mode 7 22
6.10 Manual Tape Cutter/Fast Scissors 23
6.11 Seam with Stitch Counting 23
6.11.1 Number of Stitches for a Seam with Stitch Counting 23
6.11.2 Stitch Counting Speed 23
6.11.3 Seam with Stitch Counting When Light Barrier Is On 24
6.12 Free Seam and Seam with Light Barrier 24
6.13 Light barrier 24
6.13.1 Speed after Light Barrier Sensing 24
6.13.2 General Light Barrier Functions 24
6.13.3 Reflection Light Barrier LSM002 25
6.13.4 Automatic Start Controlled by Light Barrier 25
6.13.5 Light barrier filter for knitted fabrics 25
6.13.6 Functional Variations of the Light Barrier Input 26
6.14 Switching Functions of Inputs in1...i13 26
6.15 Software Debouncing of All Inputs 27
6.16 Special pedal function Single stitch / Full stitch 27
6.17 Signal “Machine Running“ 27
6.18 Signal Output Position 1 28
6.19 Signal Output Position 2 28
6.20 Signal Output 512 Impulses per Rotation 28
6.21 Actuator 28
6.21.1 Analog actuator 28
7Signal Test 29
7.1 Signal Test Using the Incorporated Control Panel 29
7.1.1 Inputs to the control 29
7.1.2 Outputs of control 29
8Table of Machine Functions and Adapter Cords 30
9Operating Elements and Socket Connectors 32
9.1 Positions of the Front Side 32
9.2 Positions of the rear side 32
9.3 Connection Diagrams 33
10 Timing Diagrams 38
11 Parameterlist 55
11.1 Operator Level 55
11.2 Technical level (Code no. 1907) 58
11.3 Supplier level (Code No. 3112) 63
12 Error Displays 69

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1 Range of Applications
The drive is suitable for lockstitch, chainstitch and overlock machines of various manufacturers.
With the help of adapter cords (adapter cords see Special Accessories), the drive can be used in replacement of
the controls listed in the table below, as long as backtacking, stitch condensing, and chain suction are not used.
Machine
manufacturer
Replacing
Machine
Model
Thread
trimming
mode
Adapter cord
Aisin
AB62AV
Lockstitch
AD3XX, AD158, 3310,
EK1
0
1112815
Brother
AB62AV
Lockstitch
737-113, 737-913
0
1113420
Brother
AC62AV
Chainstitch
FD3 B257
5
1112822
Dürkopp Adler
DA62AV
Lockstitch
210, 270
0
1112845
Global
Chainstitch
CB2803-56
5
1112866
Juki
AB62AV
Lockstitch
5550-6
14
1112816
Juki
AB62AV
Lockstitch
5550-7, 8500-7, 8700-7
14
1113132
Kansai
AC62AV
Chainstitch
RX 9803
5
1113130
Pegasus
AC62AV
Chainstitch
W500/UT, W600/UT/MS,
with/without stitch
condensing
5
1112821
Pegasus
AB60C
Backlatch
8
1113234
Pfaff
PF62AV
Lockstitch
563, 953, 1050, 1180
0
1113746
Rimoldi
Chainstitch
F27
5
1113096
Singer
SN62AV
Lockstitch
212 UTT
2
1112824
Union Special
AC62AV
Chainstitch
34700 with stitch lock
5
1112844
Yamato
AC62AV
Chainstitch
VC series
5
1113345
Yamato
Chainstitch
VG series
5
1113345
Yamato
AB60C
Backlatch
ABT3
9
1112826
Yamato
Backlatch
ABT13, ABT17
9
1113205
Medium-duty sewing machine,
general
Lockstitch
e.g. Dürkopp Adler, Juki,
Pfaff, Sunstar, Golden
Wheel
3
Suitable
adapter, upon
request
1.1 Use in Accordance with Regulations
The drive is not an independent functional machine. It has been designed for integration into other machines by
trained specialists.
It must not be put into service until the machinery into which it is to be incorporated has been declared in
conformity with the provisions of the EC Directive (Appendix II, paragraph B of the Directive 89/392/EEC and
supplement 91/368/EEC).
The drive has been developed and manufactured in accordance with the relevant EC standards:
IEC/EN 60204-31 Electrical equipment of industrial machines:
Particular requirements for industrial sewing machines, sewing units and sewing systems.
Operate the drive only in dry areas.
ATTENTION
When selecting the installation site and the layout of the connecting cable, the Safety
Instructions must be followed with no exceptions.
Particular attention should be paid to maintaining the proper distance from moving parts!

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2 Scope of Supply
Standard Scope of Supply
1
Direct current motor
DC1200 optional DC1250
1
Electronic control/Power supply unit
AB611A5021/N214
1
Set of accessories (standard)
B156
1
Actuator
EB401
Consisting of:
Plastic bag for B156 + documentation
and
1
Set of accessories
Z55
Consisting of:
37-contact SubminD plug,
potential equalization cord
Option 1
1
Actuator
EB401
and
1
Set of accessories
Z66
Consisting of:
37-contact SubminD plug, tension rod,
potential equalization cord
Additional options
Below table assembly set
Z71 AB6..-DC12.. Below table assembly
Pulse encoder IPG001
Z72 AB6..-DC12.. IPG
NOTE
If there is no metallical contact between drive (motor) and machine head, the potential equalization cord
supplied with the unit is to be wired from the machine head to the terminal provided on the control box!
2.1 Special Accessories
The special accessories available ex works allow the augmentation and enhancement of functions, operating,
connecting, and mounting options.
Since the range of available components is continually expanded, we kindly ask you to contact us in case of
need.
Designation
Material No.
Reflection light barrier module LSM002
6100031
Hall sensor module HSM001
6100032
Pulse encoder IPG001
6100033
Adapter cord for the connection of light barrier module and/or Hall sensor module
HSM001 and/or pulse encoder IPG001
1113229
Extension cable approx. 1000 mm long for commutation transmitter DC12.. + DC15..
1113151
Extension cable approx. 1000 mm long for Netz DC12.. line + DC15..
1113931
Potential equalization cord 700 mm long, LIY 2.5 mm2, gray, with spades on both
sides
1100313
Foot control type FB302B with three pedals for standing operation, with
approx. 1400 mm connecting cable and plug
4170025
Fitting piece for position transmitter
0300019
Knee switch type KN19 (pushbutton) with cord of approx. 450 mm length and
western plug (RJ11)
5870021
Knee switch type KN20 (pushbutton + selector switch ) with cord of approx.
1640 mm length and Western plug (RJ11)
5870022
Adapter set for DC12. + DC15.. on PEGASUS model W600
1113125
Adapter set for DC12. + DC15.. on PEGASUS Ex/Ext
1113126
Adapter set for DC12. + DC15.. on PEGASUS model W1500N, W1600
1113647
Undertable mounting kit for DC1200/DC1250
1113956
Undertable mounting kit for DC1500/DC1550
1113427
9-contact SubminD male connector
0504135

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9-contact SubminD female connector
0504136
Half-shell housing for 9-contact SubminD
0101471
37-contact SubminD male connector, complete
1112900
Single pins for 37-contact SubminD with strand of 50 mm length
1112899
Adapter set direct drives DC1210 & DC1230
Mounting kit for DC1210 on JUKI M067, M069
1114085
Mounting kit for DC1210 on JUKI M068
1114093
Mounting kit for DC1210 on PEGASUS EX
1114082
Mounting kit for DC1210 on PEGASUS M900
1114088
Mounting kit for DC1210 on YAMATO AZ, CZ
1114084
Mounting kit for DC1230 on PEGASUS chainstitch
1114119
Mounting kit for DC1230 on YAMATO VC, VE, VF, VG
1114102
2.1.1 Adapter Cords for Special Machines
For interconnection diagrams of the adapter cords, please refer to our web site at www.efka.net/downloads.
Machine / Type / Model
Material No.
AISIN high-speed seamer AD3XX, AD158, 3310 and overlock machine EK1
1112815
BROTHER models 737-113, 737-913
1113420
BROTHER Lockstitch machines, with 100 Ω selective resistance,
cl. 7xxx, B84xx, 877B, B87xx, 878B (mode 31)
1113420
BROTHER chainstitch machines, with 150 Ω selective resistance,
cl. FD3-B257, 25xx, 26xx, 27xx (mode 32)
1112822
BROTHER models B721, B722, B724, B737, B748, B772, B774, B778, B842, B845,
B872, B875
Connection of the position sensor incorporated in the hand wheel
1113433
DÜRKOPP ADLER models 210 and 270
1112845
GLOBAL model CB2803-56
1112866
JUKI high-speed seamer with index -6
1112816
JUKI high-speed seamer with index -7
1113132
JUKI lockstitch machines
Connection of the position sensor incorporated in the hand wheel
1113157
JUKI DNU1541, LU2210, LU1510
1114023
JUKI LU2810-6
1114024
JUKI PLC 2760
1114025
KAISER models 1245 & 335
1114003
KANSAI machines model RX 9803
1113130
PEGASUS models W500/UT, W600/UT/MS with or without stitch condensing
1112821
PEGASUS backlatch machine
1113234
PFAFF models 563, 953, 1050, 1180
1113746
PFAFF models 1245 & 335
1114003
SINGER models 211, 212U, 212UTT and 591
1112824
TYPICAL models 1245 & 335
1114003
UNION SPECIAL lockstitch machine model 63900AMZ (in replacement of US80A)
1112823
UNION SPECIAL model 34700 with stitch lock
1112844
UNION SPECIAL models 34000 and 36200 (in replacement of US80A)
1112865
UNION SPECIAL models CS100 and FS100
1112905
YAMATO VC/VG series chainstitch machines + stitch lock
1113345
YAMATO backlatch machine ABT3
1112826
YAMATO backlatch machine ABT13, ABT17
1113205
MAUSER models 1245 & 335
1114003
MITSUBISHI lockstitch machines
Connection of the position sensor incorporated in the hand wheel
1113411
3 Putting into Service
Before putting the control into service, the following must be ensured, checked and/or adjusted:
Designation
Material No.

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Selection of motor type using parameter 467
The correct installation of the drive, position transmitter and accompanying devices, if necessary
The correct selection of the trimming operation using parameter 290
If necessary, the correct adjustment of the direction of motor rotation using parameter 161
The correct selection of the functions of keys (inputs) using parameters 240...246
The setting of the transmission ratio between motor shaft and machine shaft using parameter 272
The setting of the type of position sensor using parameter 270
If necessary, the adjustment of the positions using parameter 171
if necessary, the setting of the positions using parameter 171 (possible with all settings of parameter 270)
The correct positioning speed using parameter 110
The correct maximum speed compatible with the sewing machine using parameter 111
The setting of the remaining relevant parameters
Begin sewing in order to save the set values
4 Setting and Putting into Servicewith the Aid of the Fast Installation
Routine (SIR)
Function with or without control panel
Parameters
Call-up of the Fast Installation Routine SIR
(Sir)
500
The Fast Installation Routine (SIR) passes through all parameters necessary for programming the functional
sequence and the positions.
With SIR you can do the most important settings for initial operation with menu prompting.
For safety reasons, the menu must be executed point by point. This ensures correct setting of all important
parameters.

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Input of the code number for the fitting level. 
Parameter 500 is displayed. 
Parameter 290 for functional sequence of the cutting procedures. 
Parameter 467 for selection of motor. 
Parameter 111 for the maximum speed. 
Parameter 161 for direction of motor rotation. 
Parameter 270 for type of position sensor. 
Parameter 272 for transmission ratio. 
Important! The transmission ratio should be determined and
indicated as precisely as possible.
If parameter 270 =0 or 5, continue with input of 451.
Check the transmission ratio.

Move pedal forwards. Let the drive run until ready (rdy) is displayed.
Press pedal to position 0. The check is complete.

if parameter 270 = 6, set the reference position. 
Turn hand wheel until symbol odisplay goes off. 
Set reference position (e.g. height of the stitch plate, lower dead point).
Parameter 451 for position 1. 
Parameter 453 for position 2. 
To repeat the cycle from parameter 290, push button E. 
Or end with button P(2x). 
The values can be varied by pressing key +/-.
The input of the code number is described in the general operating manual!

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Setting on the operating part of the controls (onboard)
1
Input code number 3112!
2
Press the Ekey

Parameter 5.0.0. displayed
3
Press the Ekey

Sir displayed. The 2 lower segments of the right 7 segment display flash.
4
Press the >> key

Parameter 2.9.0. appears
(Functional cycle cutting
processes)
5
Press the Ekey

Parameter value e.g. 05 appears.
6
Press the +/-key

The parameter value can be changed.
7
Press the Ekey

Parameter 4.6.7. appears
(Selection of motor)
8
Press the Ekey

Parameter value e.g. 3appears.
9
Press the +/-key

The parameter value can be changed.
10
Press the Ekey

Parameter 1.1.1. appears
(Maximum speed)
11
Press the Ekey

Value of the set speed appears.
12
Press the +/-key

The parameter value can be changed.
13
Press the Ekey

Parameter 1.6.1. appears
(Direction of motor rotation)
14
Press the Ekey

Parameter value e.g. 1appears.
15
Press the +/-key

The parameter value can be changed.
16
Press the Ekey

Parameter 2.7.0. appears
(Type of position sensor)
17
Press the Ekey

Parameter value e.g. 0appears.
18
Press the +/-key

The parameter value can be changed.
19
Press the Ekey

Parameter 2.7.2. appears
(Transmission Ratio)
20
Press the Ekey

Parameter value e.g. 1000 appears.
21
Press the +/-key

The parameter value can be changed.
22
If parameter 270 =0 or 5, or the check of the
transmission ratio is already done, continue with
Point 30.
23
Press the Ekey

PULY is displayed.
(Check the transmission ratio)
24
Move pedal forwards
Let the drive run until ready (rdy) is displayed.
For a maximum speed that is too high, an error
message A12 is generated. Push button Eas
often as needed until parameter 111 (Point 12) is
reached again to set the permitted maximum
speed.
25
Press pedal to position 0
(neutral)
The check is complete.
26
When parameter 270 ≠ 6, continue with Point
31.
27
P0 o is displayed (oin red).
(Setting the reference position)
28
Rotate the hand wheel in the running direction until oextinguishes *.
Set reference position (e.g. height of the stitch plate, lower dead point).
29
Press the Ekey

Parameter 4.5.1. appears
(Position 1 leading edge,
position 1 trailing edge is
automatically set 60° higher)
30
Press the Ekey

Angle from position 1 is displayed.
31
Turn the hand wheel

Set position 1 (at least 1 rotation *).
32
Or press the +/-key

The parameter value can be changed.
33
Press the Ekey

Parameter 4.5.3. appears
(Position 2 leading edge,
position 2 trailing edge is
automatically set 60° higher)
34
Press the Ekey

Angle from position 2 is displayed.
35
Turn the hand wheel

Set position 2 (at least 1 rotation *).
36
Or press the +/-key

The parameter value can be changed.
37
Upon pressing the Ekey once more the program returns to parameter 2.9.0.!
38
Press the Pkey twice

The system exits the SIR routine.
*) All operations carried out by turning the hand wheel must always be carried out in the direction of rotation set up on the
machine. Under no circumstances should you turn against the machine direction.

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5 Setting the Basic Functions
5.1 Direction of motor rotation
Function with or without control panel
Parameters
Direction of motor rotation
(drE)
161
161 =0
Clockwise motor rotation (look at the motor shaft)
161 =1
Counterclockwise motor rotation
ATTENTION
If the motor is mounted differently, e. g. at a different angle or with gear, make sure that the
value set using parameter 161 corresponds to the direction of rotation.
5.2 Use of a HSM001 Hall Sensor Module or IPG... Pulse Encoder
Representation and installation of a HSM001 Hall sensor module or IPG... pulse encoder !
Representation and installation of a HSM001 Hall sensor module or PG... pulse encoder together with a
LSM002 light barrier module by means of adapter cord no. 1113229 !
Operation with HSM001 Hall sensor module
Operation with IPG... pulse encoder

- Get machine to the needle-up position.
- Position bore for magnet such that the magnet is located
approx. 15° after the sensor in the sense of rotation.
- Get machine to the needle-up position.
- Turn disk in the pulse encoder such that the leading edge
will be located approx. 15° after the sensor on the board
in the sense of rotation.


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5.3 Transmission Ratio
NOTE
The transmission ratio must always be input if no transmission ratio of 1:1 exists, because only motors with
integrated incremental transmitters will be used. The transmission ratio should be determined and set as
precisely as possible!
The transmission ratio between motor shaft and shaft of the sewing machine head must be input, so that the set
speeds of parameters 110...117 correspond to the sewing speeds.
Function with or without control panel
Parameters
Transmission ratio between motor shaft and machine shaft
(trr)
272
The transmission ratio can be selected within a range of 150...40000 using parameter 272.
Example: With a motor pulley diameter of 40 mm and a sewing machine head pulley diameter of
80 mm the value 500 can be calculated using the formula below.
If the value 2000 has been selected in parameter 272, it follows that the motor pulley is
double the size of the sewing machine head pulley.
Motor pulley diameter
Value of parameter 272 =
-------------------------------------------------------------------- x 1000
Machine pulley diameter
5.4 Selection of Functional Sequences (Thread Trimming Operations)
This drive is suitable for different lockstitch, chainstitch and overlock machines. The mode for the functional
sequence required on the respective machine can be selected using parameter 290.
ATTENTION
Before switching the functional sequences, you must disconnect input and output plug-and-
socket connections between control and machine. Please ensure that the functional sequence
(mode) suitable for the respective machine is selected.
Settings with parameter 290 are possible only after the power is turned On.
You will find a summary of the modes that can be set and the corresponding machines and adapter cords, to
include available output signals in the List of Parameters chapter: Table of adapter cords.
Further information see chapter "Timing Diagrams" for the various modes.
5.5 Functions of the Keys Inputs in1...in7
The function that is started when a button or switch connected to one of the inputs in1 to in7 is actuated can be
selected using parameters 240...246.
The possible functions are listed in the section "Parameter list".
5.6 Positioning speed
Function with or without control panel
Parameters
Positioning speed
(n1)
110
The positioning speed can be set using parameter 110 on the control within a range of 70...390 RPM.

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5.7 Maximum Speed Compatible with the Sewing Machine
The maximum speed of the machine is determined by the selected pulley and by the following settings:
Set the maximum speed using parameter 111 (n2).
Set the maximum speed limitation to the specific level according to the application as described in chapter
"Direct Input of Maximum Speed Limitation (DED)".
5.8 Maximum speed
Function with or without control panel
Parameters
Maximum speed
(n2)
111
NOTE
See instruction manual of the sewing machine manufacturer for the maximum speed of the sewing machine.
NOTE
Select the pulley such that the motor runs at approx. 4000 RPM with max. number of stitches.
5.9 Positions
Function with or without control panel
Parameters
Mode for the position sensor
Setting the needle positions
Transmission ratio between motor shaft and machine shaft
(PGm)
(Sr2)
(trr)
270
171
272
A sensor can be used as a position sensor, e.g. Efka Hall sensor module (HSM1) or pulse generator (IPG) with
either NC or NO functionality.
It is connected to socket B18/7.
Parameter 270 is used to select the mode to be selected depending on the type and mounting of the sensor
used (see section Parameter List under parameter 270 for a description and flow chart).
After configuration of parameter 270 to "1, 2, 3 o 4", parameter 171 must be used to set the angle for positions 1
and/or 2, incoming and outgoing.
Alternatively, the positions can be configured using the fast-installation routine.
The transmission ratio must already have been input using parameter 272.

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5.9.1 Setting the reference position (Parameter 170)
The angular positions necessary on the machine e.g. “needle down position“ or “thread lever up position“ are
stored in the control. A reference position is needed in order to establish a relationship between position
transmitter information and actual mechanical position.
The reference position must be set:
For initial operation
After replacing the motor
Setting the reference position on the control
Input code number and select parameter 170!
Press the E key

Display
Sr1_
Press the >> key

Display
P o u (character “o”rotating) *1
Turn hand wheel until rotating
character ogoes off on the display.

Display
P o
By turning the hand wheel, set the
needle to the bottom dead center or
the needle point to the height of the
needle plate in the direction of rotation
of the motor shaft, while needle is
moving downward.

Configuration of the zero point of the machine
Press the Pkey once

Actual parameter number 170 is displayed *2
or
Press the Pkey twice

Exit programming at the technician level.
5.9.2 Setting the positions (Parameter 270 = 0 or 6)
Do these settings whenever the encoder incorporated in the motor is used (Parameter 270 =0), or a position
transmitter mounted on the machine head (e.g. IPG pulse encoder or HSM Hall sensor) (Parameter 270 =6),
whose preset values must be adapted.
Setting the positions on the control
Input code number and select parameter 171!
Press the E key

[o] is displayed
Press the >> key

P1E is displayed; set "position 1 On" on the hand wheel
Press the E key

P2E is displayed; set "position 2 On" on the hand wheel
Press the E key

P1A is displayed; set "position 1 Off" on the hand wheel
Press the E key

P2A is displayed; set "position 2 Off" on the hand wheel
Press the Pkey twice

Exit programming at the technician level.
*1) If P 0 or Pos 0 is displayed, the reference position is already set. To repeat the setting the power must be switched off
and the code number reentered.
*2) The next parameter to be set can be selected.
*3) The button >>(F2) is the farthest button to the right on the control part.
If error message A3 (reference position not set) appears, repeat the above setting sequence.

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5.10 Control display of signal position and stop position
Function
Parameter
Display of position 1 and 2
(Sr3)
172
Control display
Segment

is turned on
corresponds to position 1 On
Segment

is turned off
corresponds to position 1 Off
Segment

is turned on
corresponds to position 2 On
Segment

is turned off
corresponds to position 2 Off
5.11 Positioning shift
Function
Parameters
Positioning shift
(PSv)
269
Determine by means of parameter 269 whether the drive is to stop exactly on the position (Parameter 269 =0)
or some increments after the position.
5.12 Braking Characteristics
Function
Parameters
Braking ramp running
Braking ramp stop
Braking ramp for n < 350 when drive stopped
(br1)
(br2)
(br3)
207
208
219
Parameter 207regulates the braking effect between speed stages
Parameter 208 influences the braking effect for the stop
Parameter 219 influences the braking effect before the stop
The following applies to all setting values: the higher the value, the stronger the braking reaction!
5.13 Braking Power at Standstill
Function
Parameters
Braking Power at Standstill
(brt)
153
This function prevents unintentional "wandering" of the needle at standstill.
The effect can be checked by turning the hand wheel.
The braking power is effective at standstill
- at stop in the seam
- after the seam end
The effect can be set
The higher the set value, the stronger the braking power

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5.14 Starting Characteristics
Function with or without control panel
Parameters
Starting edge
(ALF)
220
The drive acceleration dynamics can be adapted to the sewing machine characteristic (light/heavy).
High setting value = high acceleration
With a high starting edge setting and, in addition, possibly high braking parameter values on a light machine, the
characteristic may appear coarse. In this case, one should try to optimize the settings.
5.15 Operating hours counter
Function with or without control panel
Parameters
Acoustic signal (operating part)
Service routine for total operating hours
Service routine for operating hours before service
Input of operating hours before service
(AkS)
(Sr6)
(Sr7)
(Sr)
127
176
177
217
The integrated operating hours counter records the time of motor operation. Downtimes are not recorded. Time
recording accuracy is 1ms. There are two ways of operating hours counting.
1. Basic operating hours counting:
217 =0
Operational mode: Operating hours counting
2. Service Hours Monitoring:
217 =>0
Operational mode: Number of operating hours before the next service.
Input of operating hours before the next service.
This value is compared to the operating hours counter.
The input of hours is done in steps of 10. i. e. the lowest display of 001 corresponds to 10 hours
(e. g. 055 = 550 hours).
When the set number of operating hours are reached, the message "C1" will show on the display
after each trimming operation. In addition, the speed indicator blinks on the control during operation
or after drive standstill.
176
In this service routine, the total operating hours can be read out according to the procedure
example described below for parameter 177.
177
Display of operating hours since the last service.
Display example of operating hours or hours since the last service and operating hours counter reset.
Display on the control:
Select parameter 177
Press the E key

Sr7
Press the >> key

h t
(hours /thousands letter symbol)
Press the E key

000
hours /thousands display)
Press the E key

h h
(hours / hundreds letter symbol)
Press the E key

000
(hours / hundreds display)
Press the E key

Min
(minutes letter symbol)
Press the E key

00
(minutes display)
Press the E key

SEc
(seconds letter symbol)
Press the E key

00
(seconds display)
Press the E key

MS
(milliseconds letter symbol)
Press the E key

000
(milliseconds display)
Press the E key

rES
See chapter "Set and Reset Operating Hours Counter"
Press the E key

The process will be repeated from the hours display.
Press the Pkey twice

e.g. 400
(sewing process can be started)

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5.15.1Set and Reset Operating Hours Counter
The number of hours has been reached (service necessary):
Press the >> key once

The operating hours counter is set to "0" and restarted.
The number of hours has not yet been reached:
Press the >> key three times

The operating hours counter is set also to "0" and
restarted.
A value in parameter 177 has been changed:
After displaying rES ..., when the Ekey is pressed again, SEt will then be displayed.
If the changed value is to be saved, press the >> key 3 times.
5.15.2Total Operating Hours Display
In this service routine enabled using parameter 176, the total number of operating hours is displayed.
The sequence of displayed values is as with parameter 177.
The values can only be displayed, not varied. Therefore, letter symbols "rES" for "reset" and "SEt" for "set"
will not appear.
6 Functions
6.1 First Stitch after Power On
Function
Parameters
1 stitch at positioning speed after power On
(Sn1)
231
If parameter 231 is on, the first stitch after power on will be performed at positioning speed for the protection of
the sewing machine. This is independent of the pedal position and the softstart function.
6.2 Softstart
Function
Parameters
Softstart On/Off
(SSt)
134
Functions:
After power on
At the beginning of a new seam
Speed pedal controlled and limited to (n6)
Lower speed of a parallel function prevailing (e. G. Stitch count)
Stitch counting synchronized to position 1
Suspension with pedal in position 0 (neutral)
Interruption by full heelback (position -2)
6.2.1 Softstart speed
Function
Parameters
Softstart speed
(n6)
115

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6.2.2 Softstart stitches
Function
Parameters
Number of softstart stitches
(SSc)
100
6.3 Sewing foot lifting
Function
Control
Automatic in the seam
Automatic after thread trimming
Segment 7 on
Segment 8 on
Key –(S4)
Function
Parameters
Automatic sewing foot with pedal forward at the seam end if light barrier or stitch
counting is On
Coupled thread tension release and sewing foot lifting. The function can be activated
only with a thread trimmer that depends on the angle.
Switch-on delay with pedal in position –1
Start delay after disabling the sewing foot lifting signal
Time of full power of sewing foot lifting
Duty ratio (ED) with pulsing
Delay after thread wiping until sewing foot lifting
Delay after thread trimming without thread wiper until sewing foot lifting
Upper limit ON period of sewing foot lifting 1...100
(AFL)
(FSP)
(t2)
(t3)
(t4)
(t5)
(t7)
(tFL)
(EF-)
023
024
201
202
203
204
206
211
254
Sewing foot is lifted:
in the seam by heelback (position -1)
or automatically (using the - S4 key on the control, segment 7 lights up)
by pressing a key depending on the pre-selection of parameters 240...246
after thread trimming by heelback (position -1 or -2)
or automatically (using the - S4 key on the control, segment 8 lights up)
by pressing a key depending on the pre-selection of parameters 240...246
automaticallybylight barrier when pedal forwards, according to the setting of
parameter 023
automaticallybystitch counting when pedal forwards, according to the setting of
parameter 023
Switch-on delay after thread wiper (t7)
Switch-on delay without thread wiper (tFL)
It is possible to prevent unintentional foot lifting before thread trimming when changing from pedal position 0
(neutral) to position -2 by setting a switch-on delay (t2) using parameter201.
Holding power of the lifted foot:
The sewing foot is lifted by full power. Then the system switches automatically to partial power in order to
reduce the load for the control and the connected solenoid.
Set the duration of full power using parameter 203 and the partial holding power using parameter 204.
ATTENTION
If the holding power is set too high, the solenoid and the control may be permanently damaged.
Please observe the permissible duty ratio (ED) of the solenoid and set the appropriate value
according to the table below.
Value
Duty ratio (ED)
Effect
1
1 %
Low holding power
100
100 %
High holding power (full power)
Sewing foot lowers:
Press pedal to position 0 (neutral)
Press pedal to position ½ (slightly forward)
Release key for manual sewing foot lifting
Upon pressing the pedal forward from lifted sewing foot, the start delay (t3) that can be set using parameter 202
becomes effective.

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6.4 Reverse motor rotation
Function
Parameter
Positioning speed
Reversing angle
Switch-on delay of reverse motor rotation
Reverse motor rotation On/Off
(n1)
(ird)
(drd)
(Frd)
110
180
181
182
The function "reverse motor rotation" is performed after trimming. When the stop position is reached, the drive
stops for the duration of the switch-on delay of reverse motor rotation. Then it runs in reverse direction at
positioning speed according to the set degrees.
6.5 Unlocking the Chain (Mode 5/6/7)
Function with or without control panel
Parameters
Number of run-out stitches when unlocking the chain
Function “unlock the chain” in modes 5, 6 and 7
(c6)
(mEk)
184
190
Upon unlocking the chain at the seam end, the functions thread trimming and tape cutter/fast scissors are
automatically suppressed. When setting parameter 190 = 3, the function tape cutter/fast scissors is however
possible. After pressing the key "unlocking the chain" and with pedal in position 0 (neutral), the drive always
stops in position 1.
Settings necessary for the operation “unlocking the chain”:
Set “unlock the chain” using parameter 190 =1 / 2 / 3 / 4 (190 =0 “unlock the chain” off)
Set switch-on delay using parameter 181 and reversing angle using parameter 180
Determine the function of the key “unlock the chain” using one of the parameters 240...246
If parameter 290 is set at“
190 =0
Unchaining switched off
190 =1
Sequence with pedal in position -2 from machine run or from position 2:
- Press key "unlock the chain"
- Run at positioning speed to position 1
- Sequence of reversing angle at positioning speed after a switch-on delay that can be set
190 =1
Sequence with pedal in position -2 from standstill in position 1:
- Press key "unlock the chain"
- Run at positioning speed to position 1
- Sequence of reversing angle at positioning speed after a switch-on delay that can be set
190 =2
Automatic sequence with light barrier at the seam end without tape cutting / pedal in
position –2 according to the setting of parameter 019
- Press key "unlock the chain"
- Run to position 1 after light barrier sensing
- Sequence of reversing angle at positioning speed after a switch-on delay that can be set
190 =3
Automatic sequence with light barrier on the seam end with tape cutter and run-out
stitches(Only possible in mode 7 and if parameter 018 =0 )
- Press key "unlock the chain"
- After light barrier detection, sequence of the compensation stitches and end count up to tape
cutting
- Run-out stitches up to unlocking the chain, adjustable with parameter 184
- Sequence of reversing angle at positioning speed after a switch-on delay that can be set
190 =4
Sequence with pedal in position –2 / no unlocking of the chain if seam end with light
barrier, cutting and run-out stitches is set:
- Press the pedal to position -2
- Run at positioning speed to position 1
- Sequence of reversing angle at positioning speed after a switch-on delay that can be set
- No unlocking of the chain at the seam end with light barrier
- Reverse motor rotation is suppressed when the drive stops. The signals “blow fabric onto stack”,
M2 and “sewing foot lift” will be issued.

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6.6 Machine run blockage
ATTENTION
This is not a safety function. The line voltage must still be switched off during maintenance and
repair work.
The function “machine run blockage” is enabled by connecting a switch to socket ST2, depending on the pre-
selection of parameters 240...246
Display after enabling machine run blockage without control panel:
Control display 
Machine run blockage in the free seam, seam with stitch counting and light barrier seam:
The seam is suspended by opening and/or closing the switch.
Stop in the basic position
Needle up is not possible
Sewing foot lifting is possible
Machine run blockage in the start backtack / start stitch condensing:
The start backtack / start stitch condensing is interrupted by opening and/or closing the switch.
Stop in the basic position
Needle up is not possible
Sewing foot lifting is possible
New start after machine run blockage
Function
Parameter
New start after machine run blockage
(Pdo)
234
Parameter 234 determines how a new start is possible after closing and/or opening the switch.
234 = 0
New start after disabling machine run blockage without influence by the pedal. This setting is
applicable, for example, to automats.
234 = 1
New start after disabling machine run blockage only if the pedal is in position 0 (neutral).
6.7 Thread trimming operation
Function
Parameters
Thread trimmer On/Off
Thread wiper On/Off
FA
FW
013
014
6.7.1 Thread Trimmer/Thread Wiper (Lockstitch Modes)
Function
Parameters
Thread wiper time
Thread wiper switch-on delay
Holding power output M1 of the thread trimmer backward
Thread trimmer activation angle
Switch-off delay of thread tension release
Thread tension release switch-on delay
Stop time for thread trimmer
Upper limit ON period of thread trimmer backward
Switch-on delay angle of the thread trimmer
(t6)
(dFw)
(t11)
(iFA)
FSA
FSE
(tFA)
EV-
FAE
205
209
213
250
251
252
253
255
259
Thread trimming in the lockstitch modes is performed at trimming speed.
When the thread trimmer is off, the drive stops in position 2 at the seam end; it stops in position 1 at the end of
programmed seams.
The thread wiper ON period can be set depending on the selected trimming mode (see chapter "Timing
Diagrams" in the List of Parameters). The delay time (t7) (Parameter 206) prevents sewing foot lifting before the
thread wiper is in its initial position.
If the thread wiper is not connected, there will be a delay time (tFL) after thread trimming until sewing foot lifting.
A 2