Efka DC 1550 User manual

FRANKL & KIRCHNER EFKA OF AMERICA INC. EFKA ELECTRONIC MOTORS
GMBH & CO KG SINGAPORE PTE. LTD.
dc1550
CONTROL PF321A6012
Instruction Manual
-Putting into Service
-Settings
-Functional Description
No. 402337 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
Use of the C200 compiler
Adapter cords

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CONTENTS Page
1Range of Applications 6
1.1 Use in Accordance with Regulations 6
2Scope of Supply 6
2.1 Special Accessories 7
3Putting into Service 8
4Top part detection 8
5Setting and Putting into Service with the Aid of the Fast Installation Routine (SIR) 9
6Setting the Basic Functions 11
6.1 Direction of motor rotation 11
6.2 Use of a HSM001 Hall Sensor Module or IPG... Pulse Encoder 11
6.3 Transmission Ratio 12
6.4 Selection of Functional Sequences (Thread Trimming Operations) 12
6.5 Functions of the Keys Inputs in1...i10 13
6.6 Positioning speed 13
6.7 Maximum Speed Compatible with the Sewing Machine 13
6.8 Maximum speed 13
6.9 Positions 14
6.9.1 Setting the Reference Position (Parameter 270 = 0 or 6) 16
6.9.2 Setting the Positions on the Control (Parameter 270 = 0 or 6) 16
6.9.3 Setting the Positions on the V810 Control Panel (Parameter 270 = 0 or 6) 17
6.9.4 Setting the Positions on the V820/850 Control Panel (Parameter 270 = 0 or 6) 17
6.10 Display of the Signal and Stop Positions 18
6.11 Positioning shift 19
6.12 Braking Characteristics 19
6.13 Braking Power at Standstill 19
6.14 Starting Characteristics 19
6.15 Actual Speed Display 20
6.16 Operating Hours Counter 20
6.16.1 Set and Reset Operating Hours Counter 21
6.16.2 Total Operating Hours Display 22
7Functions with or without Control Panel 23
7.1 First Stitch after Power On 23
7.2 Softstart 23
7.2.1 Softstart speed 23
7.2.2 Softstart stitches 23
7.3 Sewing foot lifting 23
7.4 Backtacking 24
7.4.1 Backtack disabling of all automatic backtacking 24
7.4.2 Stitch length in the automatic backtacks 25
7.4.3 Start Backtack/Start Stitch Condensing 25
7.4.3.1 Speed n3 at the Start of the Seam 25
7.4.3.2 Stitch Counting for Start Backtack/Start Stitch Condensing 25
7.4.3.3 Stitch Correction and Speed Release 26
7.4.3.4 Double start backtack 26
7.4.3.5 Single Start Backtack / Start Stitch Condensing 26
7.4.4 End Backtack / End Stitch Condensing 26
7.4.4.1 Speed n4 at the Seam End 27
7.4.4.2 Stitch Counting for End Backtack/End Stitch Condensing 27

Instruction Manual
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7.4.4.3 Stitch Correction and Last Stitch Backward 27
7.4.4.4 Double End Backtack/End Stitch Condensing 27
7.4.4.5 Single End Backtack / End Stitch Condensing 27
7.4.5 Start Ornamental Backtack/Stitch Condensing 28
7.4.6 End Ornamental Backtack/Stitch Condensing 28
7.4.6.1 Stitch counting for ornamental backtack 29
7.4.7 Intermediate Backtack 29
7.4.8 Pilgrim backtack 30
7.4.9 Stitch lock at the seam end 30
7.4.10 Stitch Regulator Suppression/Recall 30
7.4.11 Holding Power of the Stitch Regulator Solenoid 31
7.5 Reverse motor rotation 31
7.6 Machine run blockage 31
7.7 Stop function 32
7.8 High lift for walking foot 33
7.8.1 High lift for walking foot signal output M16 (flip flop 1) 33
7.8.2 High lift for walking foot operational mode not stored 33
7.8.3 High lift for walking foot operational mode stored (flip flop 1) 33
7.8.4 Minimum number of stitches for high lift for walking 33
7.8.5 High Lift Walking Speed Run-Out Time 33
7.8.6 Speed Limitation Depending on High Lift 33
7.8.6.1 Setting the Speed Limitation Depending on High Lift 34
7.9 Speed Limitation n9 34
7.10 Speed Limitation n11 with Signal Output M10 / flip flop 2) 34
7.11 Disabling of flip-flop functions at the seam end 35
7.12 Bobbin thread monitor 35
7.12.1 Bobbin thread monitoring with sensors 35
7.12.2 Bobbin thread monitoring using stitch counting 36
7.13 Thread Trimming Operation 36
7.13.1 Thread Trimmer/Thread Wiper 37
7.13.2 Trimming speed 37
7.14 Seam with Stitch Counting 37
7.14.1 Number of Stitches for a Seam with Stitch Counting 37
7.14.2 Stitch Counting Speed 37
7.14.3 Seam with Stitch Counting When Light Barrier Is On 38
7.15 Free Seam and Seam with Light Barrier 38
7.16 Light barrier 39
7.16.1 Speed after Light Barrier Sensing 39
7.16.2 General Light Barrier Functions 39
7.16.3 Reflection Light Barrier LSM002 40
7.16.4 Automatic Start Controlled by Light Barrier 40
7.16.5 Light barrier filter for knitted fabrics 40
7.16.6 Functional Variations of the Light Barrier Input 40
7.17 Inputs for switches and keys 41
7.17.1 Switching Functions of Inputs in1...i13 41
7.17.2 Multiple-function key bar in machine head 43
7.17.3 Multiple-function key 43
7.17.4 Software Debouncing of All Inputs 43
7.18 F1/F2 Function Key Assignment on the V810/V820/V850 Control Panels 43
7.19 Target stitching function/move to needle function by key 44
7.20 Speed Limitation by means of External Potentiometer 44
7.21 Signals A1 and A2 45
7.21.1 Puller Function Using Signal A1 and/or A2 46
7.21.2 Edge trimmer with signal A1 46
7.22 Signal “Machine Running“ 47
7.23 Signal Output Position 2 47
7.24 Signal Output G1/G2, 512 Impulses per Rotation 47
7.25 Actuator 47
7.25.1 Digital actuator 47

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7.25.2 Analog actuator 48
7.26 Acoustic Signal 49
8Signal Test 49
8.1 Signal Test Using the Incorporated Control Panel or the V810/V820/V850 49
8.1.1 Inputs to the control 49
8.1.2 Keys on the multiple-function key bar on the machine head 50
8.1.3 Outputs of control 50
8.1.4 LEDs of the multiple-function key bar on the machine head 50

Instruction Manual
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1 Range of Applications
The drive is suitable for PFAFF lockstitch machines models 2235 Premium and 2545.
It can be operated with or without control panel.
The easy-to use V810, V820 or V850 control panels extend the range of functions.
Further control functions can be programmed using the Efka Compiler C200 software and the user-friendly
V900 touchscreen panel.
When using optionally available SM210A controllers, stepping motor operation is also possible. See also
connection scheme in the separate instruction manual “General Operation “)
1.1 Use in Accordance with Regulations
The drive is not an independently operating machine, but is designed to be incorporated into other machinery by
specially trained personnel.
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!
2 Scope of Supply
Standard Scope of Supply
1
Direct current motor for AB221/AB222 etc.
DC1550
1
Electronic control/Power supply unit
PF321A6012/N206A
1
Variocontrol
V820
1
Adapter plate for V8.. for Pfaff model 2545
1
B18 adapter control on Pfaff PD handwheel sensor
1
Actuator
EB301A
1
Set of accessories (standard)
B161
consisting of:
Plastic bag for B159, documentation and
motor mounting parts, Undertable mounting
reinforced
1
Set of accessories
Z65
consisting of:
Pitman rod 400...700mm long, potential
equalization cord, bracket for fastening EB...
and screws in a plastic bag.
1
Pulley A 80-L DC15
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!

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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.
Control panel Variocontrol V810
5970153
Control panel Variocontrol V820
5970154
Control panel Variocontrol V850
5990159
Control panel Variocontrol V900 (only in conjunction with compiler programming)
5990161
Reflection light barrier module LSM002
6100031
Hall sensor module HSM001
6100032
Pulse encoder IPG001
6100033
EFKANET Interface IF232-USB
7900081
Adapter cord for the connection of light barrier module and/or Hall sensor module
HSM001 and/or pulse encoder IPG001 and/or EFKANET
1113229
Compiler C200 for programming additional functions
1113262
Adapter cord for the connection of sockets B18 each on the SM210A stepping motor
control and on the control described here (see connection scheme in the separate
instruction manual “General Operation “)
1113172
Actuating solenoid type EM1.. (for e. g. sewing foot lifting, backtacking, etc.)
Ask for available models
Extension cable approx. 1000 mm long for commutation transmitter DC15..
1113151
Extension cable approx. 1000 mm long for Netz DC15.. line
1113150
Potential equalization cord 700 mm long, LIY 2.5 mm2, gray, with spades on both
sides
1100313
Actuator (analog) type EB401
4170028
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 KN3 (pushbutton) with cord of approx. 950 mm length without plug
5870013
Knee switch type KN19 (pushbutton) with cord of approx. 450 mm length without
plug
5870021
Undertable mounting kit for DC15..
1113235
Undertable mounting kit (reinforced) for DC15..
1113427
Sewing light transformer
please indicate line
voltage and sewing light
voltage (6.3V or 12V)
9-contact SubminD male connector
0504135
9-contact SubminD female connector
0504136
Half-shell housing for 9-contact SubminD
0101523
37-contact SubminD male connector, complete
1112900
Single pins for 37-contact SubminD with strand of 50 mm length
1112899

Instruction Manual
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3 Putting into Service
Before putting the control into service, the following must be ensured, checked and/or adjusted:
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...249
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 setting of the number of angular degrees after the sensor position using parameter 271
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 Top part detection
In machines equipped with a top part detection module (OTE module), all parameters needed for the sewing
process are set according to the values stored in the module.
Whether an OTE module is present and, if so, which module, is tested each time the power is turned on.
Depending on the result of the test, different messages appear on the display of the control panel, and different
operations are possible and/or required:
Detection status
Display on the control panel
Further sequence / options
1
The PF321A control type
is correctly detected
3500 PF321A
Sewing process released with the
parameter read out of the OTE module
2
No OTE module
connected
no IdEnt
Sewing process released with the
parameters set in the control
3
SP74D control type
detected
id wrong (2 sec.)
ote format 0
0 = do not format iLL idEnt .
All functions remain disabled
1 = format with the parameters read out of
the control.
Continue with # 7
4
No valid control type
detected
iLL IdEnt
All functions remain disabled
5
Invalid OTE frames
SizE Error
All functions remain disabled
6
Checksum incorrect
crc bAd (2 sec.)
nEw IdEnt
After Por Ekey, continue with # 7
7
New version detected
sEt cLass 01
Select machine class. After automatic
setting of the parameters in question, it is
necessary to determine the transmission
ratio Pully *1).
8
Program ID of control
more recent than that of
the OTE module
nEw ProgId (2 sec.)
otE updAtE
0 = do not overwrite OTE
1 = overwrite OTE with the parameters
read out of the control.
9
Program ID of control
older than that of the
OTE module
oLd ProgId (2 sec.)
otE updAtE
0 = do not overwrite OTE
1 = overwrite OTE with the parameters
read out of the control.
The possible options (e.g. 0or 1) are selected by pressing the + / - keys on the control panel. Confirmation with
the Por Ekey.
*1) To determine the transmission ratio, the pedal must be pushed fully forwards. The drive runs at a reduced
speed until the transmission ratio has been determined, then releases the pedal controlled speed. The
display Pulley goes out.
It is also possible to format a top part detection module using parameter 850.

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F-272
End SIR
F-451
F-453
F-270
No
P
E
E
E
E
Yes
KL2438a
F-161
F-290
F-500
Code 3112
F-200
E
E
>>
E
E
5 Setting and Putting into Service with the Aid of the Fast Installation
Routine (SIR)
The Fast Installation Routine (SIR) passes through all parameters necessary for programming the functional
sequence and the positions.
Input parameter 500 
Parameter for functional sequence “thread trimming operations” 
Parameter for direction of motor rotation 
Parameter for transmission ratio 
Important! The transmission ratio should be
determined and indicated as precisely
as possible.
Parameter for type of position sensor 
Parameter for position 1 
Parameter for position 2 
The values can be varied by pressing key +/-. When the parameter is displayed on the V810 control
panel, press the E key once more for the value to be displayed.
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. The setting of other parameters is not affected.

Instruction Manual
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Functions
Parameter
Call-up of the Fast Installation Routine SIR
(Sir)
500
Setting on the V810 control panel:
Input code number 3112!
Press the Ekey

the lowest parameter 2.0.0. of this level appears
select 500

Parameter 5.0.0. displayed
Press the Ekey

the character [o] appears and flashes
Press the >> key

Parameter 2.9.0. appears (functional sequence "thread trimming
operations")
Press the Ekey

Parameter value 05 appears
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 1.6.1. appears (Direction of motor rotation)
Press the Ekey

Parameter value 1appears
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 2.7.2. appears (transmission ratio)
Press the Ekey

Parameter value 100 appears
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 2.7.0. appears (type of position sensor)
Press the Ekey

Parameter value 0appears
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 4.5.1. appears (position 1 leading edge, position 1 trailing edge
is automatically set at 60°)
Press the Ekey

Parameter value appears
Press the +/-key

The parameter value can be changed
or turn handwheel

Set position for at least 1 rotation.
Press the Ekey

Parameter 4.5.3. appears (position 2 leading edge, position 2 trailing edge
is automatically set at 60°)
Press the Ekey

Parameter value appears
Press the +/-key

The parameter value can be changed
or turn handwheel

Set position for at least 1 rotation.
Upon pressing the Ekey once more the program returns to parameter 290!
Press the Pkey twice

The system exits the SIR routine
Setting on the V820/V850 control panel:
Input code number 3112!
Press the Ekey

the lowest parameter 2.0.0. of this level appears
select 500

Parameter 5.0.0. displayed
Press the Ekey

the character [o] appears and flashes
Press the >> key

Parameter 290 FAm 05 appears (functional sequence "thread trimming
operations")
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 161 drE 1 appears (Direction of motor rotation)
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 272 trr 100 appears (transmission ratio)
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 270 PGm 0 appears (type of position sensor)
Press the +/-key

The parameter value can be changed
Press the Ekey

Parameter 451 appears (position 1 leading edge, position 1 trailing edge is
automatically set at 60°)
Press the +/-key

The parameter value can be changed.
or turn handwheel

Set position for at least 1 rotation.
Press the Ekey

Parameter 453 appears (position 2 leading edge, position 2 trailing edge is
automatically set at 60°)
Press the +/-key

The parameter value can be changed
or turn handwheel

Set position for at least 1 rotation.
Upon pressing the Ekey once more the program returns to parameter 290!
Press the Pkey twice

The system exits the SIR routine