Fiessler AKAS-3PM User manual
Fiessler Elektronik GmbH & Co. KG
Kastellstr. 9 D-73734 Esslingen
CONTENTS:
Safety Instructions
Application
Instruction for use
Mechanical data
Electrical connection
Putting into operation
Telefon: 0711 / 91 96 97-0 Internet: http://www.fiessler.de
Muting
E2
E4
E6
Ausricht-
kontrollen
P1
P2
FiesslerElektronik- Kastellstrasse9 - D 73734 Esslingen - Tel.:0711/9196970
Empfänger / Receiver
Typ: AKAS®-3PF
OSSD1
OSSD2
OSSD1
OSSD2
SP
SGA
SGO
SGS
Kastenbiegen
box-bending
FIESSLER
E L E K T R O N I K
off
on
Typ 4
EN 61496
RXOK2
RXOK1
NLW
NA1
NA3
NA2
FUS
FUO
EDMO
EDMS
Adjustment
Press Brake Protection System safety category 4
AKAS®-3PM, AKAS®-3PF
Operating Instructions
USA Version
translation
FIESSLER
E L E K T R O N I K
Typ: AKAS® 3 FIESSLER
E L E K T R O N I K
1 = +Motor
2 = - Motor
Typ 4
EN 61496
IP 40 max. < 1mW / 670 nm + 15 nm
Laserstrahlung Laserbeam
Rayon Laser Raggio Laser
Nicht in den Strahl blicken !
Laserklasse 1 Class 1 Laser product Laser classe 1
Do not look direktly into the beams
Nes pas mettre les yeux dans les rayons!
Non Puntare Direttamerte Negli Occhi!
Warnung Caution Attention Attenzione
Warnung Caution Attention Attenzione
Laser-Transmitter Laser-émetteur Emettitore Laser
Lasersender
Steckerbelegung
Connections
Connecteurs
Allaccamento
PE =
S - = 0V
S + = +24V
(+10%)
24V DC
DOK 850
Fiessler Elektronik - Kastellstrasse 9 - D 73734 Esslingen - Tel.: ++49-711-919 697-0
Achtung, tägliche Prüfung:
Vor jedem Schichtbeginn und nach jedem Werkzeug-
wechsel ist die Lichtschranke wie folgt zu prüfen:
Test 1: Bild 1 bis 3
Test 2: Bild 4 und 5
Test 3: Bild 6
Caution, check daily:
At the beginning of each shift or after every change
of tools the safety light barrier should be checked as
follows:
Test 1: Picture 1 to 3
Test 2:Picture 4 and 5
Test 3: Picture 6
Huomio! Päivittäinen tarkistus:
Valoverho on tarkistettava jokaisen työvuoron tai
työkalunvaihdon jälkeen seuraavasti:
Koe 1: kuvat 1: stä 3: een
Koe 2: kuvat 4 ja 5
Koe 3: kuvat 6
Stop
6. LS unterbrochen
light curtain interrupted
Barreira laser interrompida
valoverho häiritty
1. 2. 3.Test 1:
Test 2:
Test 3:
FIESSLER
E L E K T R O N I K
Stop
4. 5.
Test
Attention, contrôle quotidien:
Avant le début de chaque équipe de travail ou après
ou chaque changement d'outil, la barrière de sécurité
doit être contrôlée comme suit:
Test 1: image 1 - 3
Test 2: image 4 et 5
Test 6: image 6
DokuNr.878
Doku Nr. 1379 Stand 27.1.2017 /Aui
Zertifiziertes QM-System
nach DIN ISO 9001:2000
EC type examination certified
SI Safety Instruction See page S1/ 52
Read and understand this section prior to
installing and operating the system AKAS®
Please observe always!!!
2
Contents
Doku Nr. 1379 Stand 27.1.2017 /Aui
FIESSLER
E L E K T R O N I K
Chapter Contents Page
1Indicator lights on Frontpanel and switches for safe operation 3 - 4
2General Safety Instructions . 5
2.1 Prerequisites for using the press brake protection AKAS®. 6-7
3 Description and fields of application for the equipment 8
3.1 General Instructions 8
3.2 Function Description / Characteristics 9
3.3 Function description during bending of flat sheet metal / bending of wavy sheet metal 10-11
3.4 Function description during Box bending / bending of small items 12
4 Mechanical data, dimension drawings 13
4.1 AKAS®-3PM / -3PF 13
4.2 max. Standard-Range,max. positioning range of the supports, Fiessler holders14
5Mounting 15
5.1 How to proceed during the mounting of the AKAS® -system 15
5.2 1a. Overrun Traverse Measuring / 1b. Dip Switch Adjustiment 15
5.3 2. Design of a Mechanical Suspension Device - void if Fiessler holders are used 16
5.4 3. Mounting of the suspension devices at the ram 16
5.5 4. Mounting of the AKAS® components on the holders 17
5.7 6. Adjustment of the AKAS® during first installationn 18
5.8 7. Adjustment of the distance of the AKAS® from the bending punch (self-acting if supports are used) 22
5.9 8. Function Verification of all electrical connections in view of the safety classs 4 requirements 23
5.10 9. Self-Acting Overrrun Traverse Test 23
6Electrical connections -Descriptions / wiring diagrams 24
6.1 Electrical Data 24
6.2 Instructions for Integrating the AKAS® inti the machine control system 25
6.3 AKAS®-3PM (operation only with additional safety PLC) 26
Functions / Terminals 26
Connection 27
6.4 AKAS®-3PF -with additional safety functions (operation also without additional safety PLC) 28
Functions / Terminals 29
Connection example: safety monitoring of the machine by AKAS®-...F 30
6.4.1 AKAS®-...F -selectable Safety functions 31
1. Operation with additional safety control 31
2. Monitoring of the Foot Pedal 31
Connection: Foot Pedal for 1 Operator / 2 Foot Pedals for 2 Operators 31
3. Soft-braking if the Foot Pedal was released (Delayed Foot Pedal Reaction) 31
4. Overrun Traverse Control 31
5. Monitoring of the Stop Valves (EDM) 32
6. Monitoring of the door- and the Emergency OFF-circuits, Emergency-OFF of the Motor-driven rear stoppers 32
Connection: Reset Button wiring for the rear protective grid if operated without EDM 32
Connection: Safety light Grid ( equivalent switching) as rear guard 33
Connection: Safety light Grid ( antivalent switching) as rear guard 33
7. Installation operation/ protection by monitored slow speed without activated protective field 34
Connection: when equivalent switching door contacts are used 34
Connection: when antivalent switching door contacts are used 34
8. Slow speed traverse information -Connection of traverse measuriung device 35
9.Enhancement of Switching-over tolerances of the valve position monitors 35
6.4.2 Programming of the safety functions by Hex switches 36
6.5 Displaying outputs, Indicator LEDs 38
-Muting lamp , adjustment control LEDs , indicator LEDs 38
-Outputs via serial RS232-interface 39
7Service / Maintenance / Warranty. 42
8Signals as a function of time, way, rate........................................................................................................ 43-47
9Order Codes 48
10 AKAS®-Inspection sheet 49
11 Declaration of Conformity50
12 Terms 51
SI Safety Instructions.......................................................................................................................................... S1-S5
3
Indicator lights on Frontpanel and switches for safe operation
Muting
E2
E4
E6
Ausricht-
kontrollen
P1
P2
Fiessler Elektronik - Kastellstrasse 9 - D 73734 Esslingen - Tel.: 0711/9196970
Empfänger / Receiver
Typ: AKAS®-3PF
OSSD1
OSSD2
OSSD1
OSSD2
SP
SGA
SGO
SGS
Kastenbiegen
box-bending
FIESSLER
E L E K T R O N I K
off
on
Typ 4
EN 61496
RXOK2
RXOK1
NLW
NA1
NA3
NA2
FUS
FUO
EDMO
EDMS
Adjustment
1
3
4
5
6
1
2
3
4
5
ajustment controll-Leds of the receiver elements E2, E4, E6
LEDs are on if the beam does focus at all (see page 21)
ajustment controll-Leds P1, P2 for self-acting ajustment
after tool change
LEDs are of if the beam does focus at all (see page 21)
integrated mutinglamp
lamp is on if the protective field of the AKAS is not activated
lamp is flashing if EDM- or SP-input-signals are wrong (see
page 38)
LEDs for safety outputs (OSSDs, Fail-Safe PNP)
red LEDs are on if the OSSDs are in OFF status
green LEDs are on if the OSSDs are in ON status
LED is on if box bending funktion is activated
SP
SGA
SGO
SGS
RXOK2
RXOK1
NLW
NA1
NA3
NA2
FUS
FUO
EDMO
EDMS
6
view after removing the lid
on the receiver
view of the receiver elements
1.1
0
8
0
8
0
8
0
8
2
14v
13v
12v
11v
10v
9v
8v
7v
6v
5v
4v
3v
2v
1v
123
14h
13h
12h
11h
10h
9h
8h
7h
6h
5h
4h
3h
2h
1h
view after removing the
connection lid on the recei-
ver support
1
hex-switch 4
hex-switch 3
hex-switch 2
hex-switch 1
(see page 36,37)
bendingline
connector plug
dip-switches (see page 15)
Indicator lights for in- and out-
puts (see page 38)
Outputs for
release of rear stoppers
Input for Overruntraverse controll
Inputs for control of protective grids or
doors and emergency-off circuits
Inputs for press start / stop
(release of closing stroke)
Input for stop contactor control
Input for safety point
Output for demand for slow speed
Input for position control in slow speed
AKAS®-3PF
FIESSLER
E L E K T R O N I K
Doku Nr. 1379 Stand 27.1.2017 /Aui
E1
E2
E3
E6 E5
P1
E4
P2
4
Indicator lights on Frontpanel and switche for safe operation
Muting
E2
E4
E6
Ausricht-
kontrollen
P1
P2
Fiessler Elektronik - Kastellstrasse 9 - D 73734 Esslingen - Tel.: 0711/9196970
Empfänger / Receiver
Typ: AKAS®-3PM
OSSD1
OSSD2
OSSD1
OSSD2
SP
SGA
SGO
SGS
Kastenbiegen
box-bending
FIESSLER
E L E K T R O N I K
off
on
FUS
FUO
Adjustment
Typ 4
EN 61496
1
3
4
5
6
Indicator lights
for in- and outputs
(see page 38)
Inputs for press start / stop
(release of closing stroke)
Input for safety point
Output for demand for slow speed
Input for position control in slow speed
view of the receiver elements
AKAS®-3M 1.2
2
14h
13h
12h
11h
10h
9h
8h
7h
6h
5h
4h
3h
2h
1h
123
5v
4v
3v
2v
1v
6v
1
SP
SGA
SGO
SGS
FUS
FUO
6
ajustment controll-Leds of the receiver elements E2, E4, E6
LEDs are on if the beam does focus at all (see page 21)
ajustment controll-Leds P1, P2 for self-acting ajustment
after tool change
LEDs are of if the beam does focus at all (see page 21)
integrated mutinglamp
lamp is on if the protective field of the AKAS is not activated
lamp is flashing if EDM- or SP-input-signals are wrong
(see page 38)
LEDs for safety outputs (OSSDs, Fail-Safe PNP)
red LEDs are on if the OSSDs are in OFF status
green LEDs are on if the OSSDs are in ON status
LED is on if box bending funktion is activated
bendingline
connector plug
dip-switches (see page 15)
view after removing the
connection lid on the recei-
ver support
1
2
3
4
5
FIESSLER
E L E K T R O N I K
Doku Nr. 1379 Stand 27.1.2017 /Aui
E1
E2
E3
E6 E5
P1
E4
P2
This is the operating instruction for the AKAS® models: AKAS®-3PM, AKAS®-3PF.
Special instructions for each model are provided with its individual model marking. Attention is
drawn to all safety instructions by this symbol.
Particular attention must be paid to such instructions.
These operating instructions provide to the user important information concerning the correct use of the AKAS®.
These instructions are a component of the light barrier concerned. It is essential that they are easily available at
the location where the safety light barrier is installed. Before the initial operation of the AKAS®, all requirements
detailed in these operating instructions must be observed. Other relevant regulations and the requirements of the
employers' liability insurance associations have also to be complied with.
Mounting, initial operation and maintenance may only be performed by qualified persons.
Light barriers do not protect anybody from machine-caused flying objects.
The AKAS® protects fingers and hands that hold the sheet during the operation. Therefore it does not protect
during any fast engagement between the bending punch and the matrix short time before those are
closed. The protection function of the system is cancelled when the Muting lamp is on.
The front beams E3-E6 (AKAS®-3PM, AKAS®-3PF) which are turned to the operator before the bending
line do not protect, if the box-bending function has been activated earlier.
With the integration of a AKAS ® safety system, the standard should be strictly complied with the
European Standard (EN 12622).
Protection circuits and Emergency can only stop the opening movement when the movement is
interupted with the RXOK outputs.
5
Read the operating
instructions
Qualified Personnel
Safety warning
A-Test:
putting into operation
B-Test: daily check
(at least every 24 hours)
Safety instructions
please notice absolutely
2
Doku Nr. 1379 Stand 27.1.2017 /Aui
The setting must be done in a way that the following test will be passed:
!!! If either test A or B fails, the machine must not be used until the problem is resolved !!!
- The B-Test must be done for safety reasons each 5 times on the left end and on the right end of
the upper tool.
- The press brake must be equipped completely with the heaviest upper tool.
- Start of the closing movement from the maximum top dead centre (T.D.C)
At the beginning of each shift and after each change of tools, the AKAS® press brakes protection
must be checked as follows (see also EN 12622):
Test must be carried out at both left and right ends of the bending punch.The punch must not touch the
step-shaped test rod.
a.) Place the test piece in position "10" on the lower tool. Select the box bending function if you use a
system of the AKAS®3... product family. Now start the close down movement.
b.) The press brake stops.
c.) The test piece must be placed in position "15" under the upper tool. In this position ("15") the test
piece may not touch the upper tool.
d.) Drive up the press brake. Place the test piece in position "35" on the lower tool. Select the
normal bending function if you use a system of the AKAS®3... product family.
Now start the close down movement.
e.) The press brake must be stopped in a way that the test piece ("35") may not touch the upper tool.
f.) Turn on the sender ( adjustment keyswitch to ON position )and move the test piece ("14") along
the tip of the upper tool. The adjustment
controll LED P1 on the AKAS® receiver
has to remain ON during the test.
Fig.5/ 2
a.
b.
c.
d.
e. f.
Stop
Stop
LC interrupted
10 15
35 14
Fig.5/1
FIESSLER
E L E K T R O N I K
1. Use only tools with the same height in the same fixing on the press. All utilized tools must have one common bending
line.
2. According EN 12622 the press brake safety safety system AKAS® is designed specifically and only for the use of “V”
type tools.
3. Stoppers, which are mounted at the matrix, lead to a premature switching-off of the downward movement
4. The maximum allowable overrun traverse of the machine: 11mm / AKAS®-3P..
The press must have an automated overrun traverse control for the first stroke. If not, it can be realised by the AKAS®-3PF
and a cam controller or by the Fiessler AMS-system . Before the initial start-up, the overrun traverse must be checked either by
using the test rod (see page 9) or by using an Overrun Traverse measuring device. (upon customer's request, Fiessler Elektro-
nik will perform the Overrun Traverse Measuring on the customer's machine.) If one results of 10 consecutive measure-
ments is larger than 11mm / AKAS®-3..., the fast speed must be reduced.
5. Due to the missing sychronization during fast speed, AKAS® cannot be used for two machines aligned in parallel
(e.g. "tandem press brake") .
6. Muting of AKAS.
During the slowspeed closing movent the control system of the machine must send the mute
signal to the AKAS receiver. Please refer page 15 how to setup the correct blanking / mute point values .
The control system of the machine must reliably guarantee, according to safety category 4,
that from this point the stroke speed is <= 10mm / s.
6.1 Bending boxes with AKAS If the “boxbending” mode of AKAS is activated the
blanking and the muting signal must be activated before the receiver element E2 (for Details see page 12) is interrupted.
Please refer page 15 columns “boxmode” how to setup the correct blanking / mute point values
for boxbending mode.
6.2 Bending flat sheets with AKAS Before the blanking signal is sent to the AKAS receiver
any of the receiver elements E1 and E3 – E6 must not be interrupted by the sheet or the
lateral die cover (for Details see on page 10)
But the receiver element E2 must be interrupted by the sheet or the lateral die cover.
The blanking signal can be a output signal from the machine NC.
The closing stroke can continue in high speed until the mute point is reached
7. The protection of a pressbrake by the AKAS® does not permit bending in the bottom of a box inside the box in fast
speed.
8. The AKAS® does not protect: -if the machine is only run in the work speed, or AKAS will be
interrupted during fast speed and the stroke will be continued in
work speed
-if the overrun traverse of the press brake is too long
-from squeezing during the bending operation
-if the mutinglamp is constantly on
-if the lateral stencil cover is higher than the top of the die ans the blanking
signal (SP) is set to this wronh position of the leteral die cover.
See pic 6/3 together with a wrong SP setting
9. The hazardous state of the machine must be terminated by the sensor function.
10. The safety level (class 4) of the accident preventing light barrier should at least correspond to the safety level of the control
system of the machine.
11. Laser beams may be deviated due to air currents, this may cause unwanted and unforeseen machine stops.
Therefore the machine must be erected at a place free of air currents.
Safety Instructions
6
2
Fig.6/ 1 Fig.6/ 2
Prerequisites for using the press brake protection AKAS®
2.1
Doku Nr. 1379 Stand 27.1.2017 /Aui
FIESSLER
E L E K T R O N I K
Fig.6/ 3
leteral die cover
Acceptance test: the installation acceptance test and inspections should be carried out by a competent person in possession of all
the information supplied by the manufacturer of the machine and the ESPE.
Upon customer's request, Fiessler Elektronik will perform the initial acceptance as well as the annual test. Additionally,
customer training seminars on how to execute annual tests will be conducted at regular intervals.
The machine owner must make sure that a competent person is assigned to check the light barrier annually. This person can be an
employee either from the light-barrier manufacturer or from the operator's staff. The annual test shall be executed according to
the inspection sheet on pae 49.
“Complies with 21CFR and 1040.10 and 1040.11".
"Caution! the use of controlss or adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure."
Attention! L'utilisation de commandes ou de réglages ou l'exécution de procédures autres que ceux et celles spécifiés
dans le présent manuel risque d'entraîner une radioexposition dangereuse.
Safety Instructions
7
2
Prerequisites for using the press brake protection AKAS®
2.1
FIESSLER
E L E K T R O N I K
Annual Inspection
Acceptance
Doku Nr. 1379 Stand 27.1.2017 /Aui
Produkt conformance
Description and fields of application for the equipment
General Instructions
8
with Support:
AKAS®-3P...
Serial Numbers
AKAS®-3P...
3
3.1
Doku Nr. 1379 Stand 27.1.2017 /Aui
The laser - accident preventing light barrier AKAS® is an electro sensitive protective and controlling device
(ESPE) which has the function to protect operators from accidents.
This happens as follows : Before a part of the body is squeezed between two opposed moving machine parts,
this part of the body interrupts at least one light beam. By this means the movement of the machine is stopped,
before it comes to an injury.
AKAS®
- meets IEC 61496, Typ 4, prEN 12622
- is self- monitoring without additionally wiring.
- easy to adjust after tool changing.
Operative range for the laser-accident preventing light barrier of the AKAS® types are: press brakes
AKAS®-3PM / -3PF: equipped with electromotor driven supports for transmitter and receiver for self-acting tool
change if tools with diefferent heights are used (see fig. 8/1).
The serial numbers are located at the front side of the housings of both transmitter and receiver supports.
FIESSLER
E L E K T R O N I K
fig. 8/ 1
matrix
bending punch
Support
Support
Support
Support
ram
matrix
transmitter receiver
suspension devices with electromotor driven
supports:
the System AKAS®-3 automatically adjusts on-
to the required distance to the bending punch
after a tool change.
Description and fields of application for the equipment
Function Description / Characteristics
9
3
3.2
Doku Nr. 1379 Stand 27.1.2017 /Aui
Functions / Characteristics
AKAS®-3PM AKAS®-3PF
with / without Support
self-adjusting onto different tool heights
max. Overrun Traverse of the press brake
with
4 - 11 mm
with
4 - 11 mm
recommended turnover point
from fast speed into slow speed (according to overrun tra-
verse of the press) Distance between metal sheet and
bending punch)
Detecting beams / Receiver elements
Inputs
Overruntraverse control
NLW
0 - 6 mm
3 / 6
-
0 - 6 mm
3 / 6
1 -selectable with / without
3 inputs for control of protection doors / emer-
gency-OFF-circuit NA1, NA2, NA 3 for paired
use
1 pair lateral door circuit, equivalent or antivalent,
1 pair rear door circuit , equivalent or antivalent,
1 pair emergency-OFF-circuit s
Stopp contactor control
EDMO, EDMS
data of traverse in slow speed
SGW
start / stop of closing stroke
FUS, FUO
-
-
-
2 equivalent
position control in slow speed
SGO, SGS
selection of box bending
KAST
safety point
SP
Outputs
1
2 equivalent
1
3 Pairs -selectable with / without
2 -selectable with / without
1 -selectable with / without
2 -selectable antivalent or equivalent switching
1
1
2 -selectable antivalent or equivalent switching
Safety outputs for release of closing stroke
OSSD1, OSSD2
release and Emergency OFF of the rear stoppers
RXOK1, RXOK2
demand of a higher change-over point from fast
speed into slow speed above the slug during
box-bending HUSP
box bending function is displayed
HUSP
2
-
1
1
output for messages RS 232
TXD
demand for slow speed
SGA
1
1
2
2
1
1
1
1
systems without operating mode se-
lection operation only with additional safety
PLC (e.g. FPSC)
systems with operating mode selec-
tion with integrated safety fuunctions
FIESSLER
E L E K T R O N I K
- selectable with / without foot pedal delay
Description and fields of application for the equipment
Function description during bending of flat sheet metal
bending of flat sheet metal
At start of stroke
fast speed
Principle of function
bending of flat sheet metal
10
The V opening of the die must be covered with the lateral die cover. This is necessary because
the receiver element E2 must be interrupted before the SP signal ( blanking signal ) is activated.
The SP signal must be active before any of the receiver elements E1 or E3 – E6 is interrupted by the
sheet or the lateral die cover.
The machine can still move in high speed for a maximum of 800ms. After this time the machine
must move in slowspeed ( <= 10mm/s ).
-If the SP signal is not active all receiver elements E1 – E6 must be free. During the following closing stroke only E1 und
E3 – E6 must be free.
-If the SP signal is active the receiver element E2 must be interrupted. Attention, if SP is active but E2 is free, closing
stroke is not possible (e.g. lateral die cover is missing or not in correct position)
-If the SP signal is active and at least receiver element E2 is interrupted, AKAS will turn off the SGA
output (highspeed enable). Only a slowspeed stroke is allowed now.
-If the SP signal is not active and at least one of the receiver elements E1 or E3-E6 is interrupted (E2 does not matter
now) it is possible to start a slowspeed stroke by pressing the footpedal two times.
(SGA will turn off. E.g. for a bend inside a closed box)
-If the SP signal is not activated the receiver elements E1 and E3-E6 must be free.
-If receiver element E2 is already interrupted and the SP signal is just activated, the receiver elements E3 and E4
must stay free for at least 27ms. (Important: E2 must be interrupted before SP is activated)
-If receiver element E2 is already interrupted and SP will be activated, the machine can continue to move in high-
speed for up to 800ms. Before the 800ms are exceeded the machine must change to slowspeed. (Muting will only
be activated in slowspeed)
1.Release the closing movement by activating the foot pedal. Receiver E1 to E6 are activated.
2. Press brake closes in fast speed (> 10mm/s)
Receiver element E2 are deactivated, E1,E3 bis E6 activated (protection)
3. Position for AKAS blanking reached (SP signal is changing from SP = 0 to SP = 1):
The receiver elements E1, E5 and E6 will be muted. E4 will stay active for about 27ms
(max allowed travel distance 4mm). E3 will stay active.
4. After reaching the change-over point from fast speed to slow speed (= 10 mm/s):
(Distance between punch and sheet 0-6mm depending on the stopping distance of the machine)
Receiver element E3 will be muted, so the complete AKAS receiver is muted now.
5. All receiver elements are muted and the muting lamp is on. The bending procedure is finished.
(The fast speed mode and the slow speed mode are limited of about 2 min.)
3
3.3
Doku Nr. 1379 Stand 27.1.2017 /Aui
Fig.10/ 1
FIESSLER
E L E K T R O N I K
E1
E2
bendingline
E4 E3 E6 E5
flat sheet
Description and fields of application for the equipment
Function description during bending of flat sheet metal
Advice
Bending of wavy sheet metal
11
The beams of the AKAS® must be located at a certain distance to the bending punch.
(See chapter 5.2 Overrun Traverse Measurement and
chapter 5.8 Adjustment of the distance between the AKAS® and the bending punch.
Caution! Use only tools with equal overall height within one fixing.
Closing movement with interrupted protective field
The AKAS® system offers the possibility to execute a closing movement under monitored slow speed even when
the protective field is interrupted by a wavy sheet metal.
After the interruption of the protecfive field and the release and reactivation of the foot pedal, the AKAS will
deactivate the SGA output when the protective field is interrupted. By this, only slow speed will be enabled by the
machine control (NC).
AKAS® provides a reaction time of about 200ms for the machine control and then activated the safety switching
outputs for the closing movement (OSSDs). The OSSDs remain activated as long as the AKAS® receives a
slow speed message to SGS and SGO:
by AKAS®...Fwithin the next 70 ms + the selected enhanced tolerance (see page 35/36)
by AKAS®...Mwithin the next 170 ms (A tolerance enhancement is possible only with the AKAS®...F systems).
By twice pressing the foot pedal can also use this function to perform a stroke, when the protective field
of the AKAS ® is interrupted in the OT.
3
3.3
FIESSLER
E L E K T R O N I K
Doku Nr. 1379 Stand 27.1.2017 /Aui
Description and fields of application for the equipment
Function description during bending of boxes
Function principle
box bending
see diagram page 56
Bending of the box bottom
Bending of very small
pieces
12
1. "Box Bending" is activated by the box bending button. The signal at the box bending input KAST must be high
(+24V) for at least 100 ms and after that low (0V) for at least 100 ms.
(The box bending function can be canceled by twice activating the box bending button again)
2. AKAS® confirms the selection of the box bending by activating the output HUSP and the LED box-bending
- HUSP output active: The speed change point ( fast -> slow ) must be a bigger value (refer table 15/1)
The receiver elements E3 – E6 are muted, E1 and E2 are active.
3. Release the closing movement by activating the foot pedal. The press closes in fast speed (> 10mm/s).
4. After reaching the change-over point from fast speed to slow speed (= 10 mm/s) :
E2 is deactivated, E1 remains activated for 0,5s (5mm) more (=protection)
5. All Receiver elements are muted and the muting lamp is on. The bending procedure is finished.
(The fast speed mode and the slow speed mode are limited of about 2 min.)
6. After the bending procedure the box bending function is cancelled.
Closing movement with interrupted protective field
The AKAS® system offers the possibility to execute a closing movement under monitored slow speed even when
the protective field is interrupted.
After the interruption of the protecfive field and the release and reactivation of the foot pedal, the AKAS will deac-
tivate the SGA output when the protective field is interrupted. By this, only slow speed will be enabled by the ma-
chine control (NC).
AKAS® provides a reaction time of about 200ms for the machine control and then activated the safety switching
outputs for the closing movement (OSSDs). The OSSDs remain activated as long as the AKAS® receives a
slow speed message to SGS and SGO:
by AKAS®...Fwithin the next 70 ms + the selected enhanced tolerance (see page 36/37)
by AKAS®...Mwithin the next 170 ms (A tolerance enhancement is possible only with the AKAS®...F systems).
In the case of bending of very small pieces, which must be guided by the fingers, the box-bending function
must be selected. Otherwise, the fingers would interrupt E3, E4, E5, E6 (AKAS®-3P M/-F) which would
lead to the switching off of the bending process!
With activated box-bending function, a finger which is placed next to the slog on a large matrix, is not
detected!!
3
3.4
Doku Nr. 1379 Stand 27.1.2017 /Aui
E1
E2
bending line
Fig.12/ 1
E4 E3 E6 E5
side part of the
box
FIESSLER
E L E K T R O N I K
Mechanical data, dimension drawings
transmitter and receiver
13
4
4.1
Doku Nr. 1379 Stand 27.1.2017 /Aui
AKAS®-3PM /-3PF
FIESSLER
E L E K T R O N I K
The aluminium housing of both transmitter and receiver are powder coated in RAL 1020 yellow. The optical he-
ad is made of acid-resistant spherically reinforced plastic (polyamide). The support housings are of eloxal
coated aluminium.
With Fiessler tenon blocks
105
173
16,5
55
min 48
max 25
136 mm
13
M 6 x 30
M 8
max 23 mm
76
87,5
30
50
M 6 x 30
50
10
12,2
99
30 32
25
51
34 38
for Fiessler tenon blocks
with 150 mm positioning range: 665 - 680 mm with 190 mm positioning range: 705 - 720mm
bending line
fastening screws
Fig. 13/1
housing type
fastening
dimensions
Mechanical data, dimension drawings
Max. Standard-Range / Max. positioning range of the supports / Fiessler Holders
14
max. Standard-Range
between transmitter/receiver unit
8 m
max. Upper tool length
6m
(For longer range please get in
contact with Fiessler Elektronik or
your local dealer).
max. positioning range of the
supports
AKAS®-3...
Standard 150 mm
(190 mm as option)
(On demand, supports with larger
position ranges are available)
Fiessler Holders
4
4.4
Fig. 14/ 1
Upper tool
Matrix
trans-
mitter
receiver
Ram
Support
Support
Standard 150mm (190mm as option
200 ±10 mm
min
140 mm
167 mm
4 x11 Ø
4xM10
max
155 mm
10
30
50
70
AKAS
drawing, view from the top fig. 14/5
200 ±10 mm
min
140 mm max
155 mm
10
30
50
70
AKAS
DE
CAB
Holder for AKAS®-3...
order code AKAS/AS/U (optional)
swiveling adaptor for Holder AKAS/AS/U
order code AKAS/AS/U/S (optional)
drawing, view from the top fig. 14/3
closed fig. 14/6
open fig. 14/7
front view fig. 14/2
rear view fig. 14/4
max. 8m (between transmitter/receiver)
FIESSLER
E L E K T R O N I K
max. Upper tool length 6m
Doku Nr. 1379 Stand 27.1.2017 /Aui
How to proceed: Step by
step mounting the AKAS®
1a. Overrun Traverse
Measurement
1b. adjustment of the dip
switches
only AKAS®-3...
table 15/1
The press must have an automated overrun traverse control for the first stroke. If not, it can be realised by
the AKAS®-...F and a cam controller or by the Fiessler AMS-system . Before the initial start-up, the overrun tra-
verse must be checked either by using the test rod (see page 9) or by using an Overrun Traverse measuring
device. (upon customer's request, Fiessler Elektronik will perform the Overrun Traverse Measuring on the customer's machine.)
If the results of 10 consecutive measurements are larger than 11mm (AKAS®-3P...,) the fast speed must be re-
duced.
According to the induvidual overrun traverses of each machine, 7 different distances Z (=gap between uppermost receiver ele-
ment and bending punch, see Fig. 15/1 u. Fig. 15/2) can be programmed via 3 dis switches at the support. The adjustment to the re-
spective selected distance is carried out automatically. (s. chapter 5.7 (Adjustment of the distance of the AKAS® from
the bending punch). Fiessler delivers the system pre-adjusted "B".
Mounting
5
How to proceed when mounting the AKAS®
5.1
Overrun Traverse Measurement / According dip switch adjustment
5.2
E1
Z
Fig.15/1
Mark
AKAS®-3
* by this, a tolerance in
sheet metal waviness
of about 2mm is given.
B 11 mm 14 mm 19 mm
C
D
9 mm
8 mm
12 mm
11mm
17 mm
16mm
E
F
G
H
7 mm
6 mm
5 mm
4 mm
10mm
9mm
15mm
14mm
8mm
7mm
13mm
12mm
6 mm 19 mm
4 mm
3mm
17 mm
16mm
0mm
0mm
15mm
14mm
0mm
0mm
13mm
12mm
adjust-
ment
distance Z after completed automatical adjust-
ment in accordance to the max. allowable
overrun traverse of the press brake after the
interruption of the beams. AKAS®-3P...
Dip switch Position
recommended blanking point
SP->1 above the slug surface
AKAS®-3P...
recommended change-over point
(V->10mm/s) from fast speed into
slow speed*above the slug
surface *AKAS®-3P...
The distance must not be less than the
stopping distance of the machine
flat (HUSP=0) box (HUSP=1)
flat (HUSP=0) box (HUSP=1)
off
on
off
on
off
on
off
on
off
on
FIESSLER
E L E K T R O N I K
The adjustment A is not applicable for AKAS 3P.
off
on
off
on
1 a. Overrun traverse measurement / b. Dip switch adjustment at the support
2
3
Design of the mechanical holders - void if Fiessler holders are used
Mounting of the holders at the ram
4
5
6
7
Mounting of the AKAS® on the holders
Connection of the AKAS® / Selection of the operating mode at the ...F-series
Adjustment of the AKAS® during first installation
Adjustment of the distance of the AKAS® from the bending punch (self-acting if supports are used)
8
9
Function Verification of all electrical connections in view of the safety classs 4 requirements
Self-acting Overrun Traverse Test
The distance to the upper tool must be set so
that the A-test with the test block is passed.
15
Doku Nr. 1379 Stand 27.1.2017 /Aui
- The dimensions of the self-supplied holders must be individually laid out according to the dimensions
of the press brake.
- The self-supplied holders must be made of torsion-free rigid material, e.g. steel tubes 80 x 50 x 5 mm.
- They must be sufficiently long so that the largest and the shortest tool are still within the detection
range of the AKAS® .
- If frequent tool change requires the presence of a swivable holder, this should be installed at the recei-
ver arm, in order to leave the precise adjustment of the transmitter arm unchanged.
a) The holders must be mounted at the ram in a way that the marks on transmitter and receiver correspond exacl-
ty to the bending line. The receiver elements E5 (AKAS®3 fig. 20/3) must face the operator and E1 (AKAS®3 fig.
20/3) must remain free when the highest tool is utilized. (Fig. 16/ 2 u. /3)
d) The lowest edge of both supports must be at the same level.
c) The gap between the front edge of the AKAS®systems and the press brake should be > 100mm in order to
prevent injuriers while closing the press.
d) The existing mechanical guards of the machine must be modified in a way that any by-passing of the safety
equipment by the operator is not possible. Likewise, any danger of geeting caught between grids and safety
equipment must be excluded.
Transmitter and receiver of the AKAS® must not be subject to mechanical stress (e.g. bottles must not
be placed on it). To prevent this and to protect the AKAS® from any damages, a solid protection cap
should be always mounted.
Make sure that no material or solid parts are placed in the clearance beneath the AKAS® and the holders,
in order to exclude any collision caused by the closing movement of the press
brake. Fig. 16/ 5
Mounting
2. design of the holders
void if Fiessler holding Devices
are used
3. Mounting of the holders
at the ram
please observe!
16
5
Design of the holders / Mounting of the holders at the ram
5.3-5.4
Doku Nr. 1379 Stand 27.1.2017 /Aui
Fig.16/ 5
l ower edge at the same height
Fig. 16/ 1 distance at least
bending line
Mark
E5
AKAS®-3 Fig.16/ 3
E1
transmitter receiver
Fiessler holder fig. 16/4
Flange for fastening the
item at the ram
FIESSLER
E L E K T R O N I K
a) Support with tenon blocks at the rear
b) Support with fastening angles at the upper and lower side (as option)
Mounting
Mounting of the holders at the ram
4. Mounting of the AKAS®
on the holders
a) AKAS®-3...
Fiessler holder
Mounting on self-supplied holders
17
5
5.5
M6 adjustment screws with lock-
nuts for pivoting around the longi-
tudinal axis
upper fastening angle:
Boring 8,1 mm for fastening
lower fastening angle:
slot for pivoting around the lateral axis
and for fastening.
The M8 fastening screws must be
equipped with washers.
screws with locknuts for height fine
adjustment
To guarantee a trouble-free operation,
the supports of both the receiver and the
transmitter must be fixed at solid, defor-
mation-free plane-parallel constructions
at the ram.
The adjustment screws must be easily
accessible. Wihen pivoting around the
longitudinal axis, the locknuts of the lo-
wer M 10 screw at the angle bracket
should be unscrewed, the other M10
locknuts must be tightened.
Pay attention to avoid any deformation
of the profile. By unscrewing the M10
screws, fine height adjustment is ena-
bled.
Fig. 17/ 5
2 M5 s liding tenon blocks are loca-
ted in each groove for fastening
The adjustment is made with the
help of the holders.
Remove the fastening plate from the
Fiessler holder and tighly fasten it by
using the tenon blocks at the AKAS®.
Choose a mounting position according to
the directions given in chapter 5.7 Ad-
justment of the AKAS® during first
installation.
Pay attention to avoid any deformation
of the profile.
Fig. 17/ 1
up: B
down: C up: A
down: C
Fig. 17/ 4
Fiessler holder front view fig. 17/2 Fiessler holder rear view fig. 17/3
fastening plate
M6 adjustment screws for swive-
ling around the lateral axis
M6 adjustment screws
for swiveling around the
longitudinal axis M8 fastening screws
DE
C
AB
-AKAS®-3...
FIESSLER
E L E K T R O N I K
Doku Nr. 1379 Stand 27.1.2017 /Aui
Mounting
Adjustment of the AKAS® at the first installation
18
6. Adjustment of the
AKAS®
at the first installation
adjustment of the receiver
adjustment of the transmitter
5
5.7
both supports must be mounted in a way that:
1. the highest (biggest) bending punch and the smallest
bending puch is within the range of the supports.
2. using the smallest bending punch, the receiver
element E1+Z (AKAS®-3 see fig. 18/1) are covered by
the punch at the highest range position of the support.
3. using the highest bending punch, the receiver element
E1+Z (AKAS®-3 see fig. 18/1) can still be positioned
correctly at the lowest position.
Adjust the support with the help of a spirit level vertically,
i.e. parallel to the guiding rails of the ram.
Set up the receiver with the M6 adjustment screws until
the white line on the receiver cover is in line with the
bending line of the machine.
Verify that the white line on the receiver is in line with
the bending line all over the entire movement range of
the receiver support.
Check this over during the whole travel of the support of
the receiver by turning the key-operated switch to "ON"
and carrying the receiver upwards with pressing the but-
ton "RECEIVER UP". For doing this, the adjustment mo-
de must be in manual mode s. chap. 5.8.). During the up-
ward movement of the receiver, repeatedly turn the key-
operated switch to "OUT" and check the distance bet-
ween the mark and the perpendicular (bending line) to
make sure that the receiver is carried up parallelly to the
bending line. The displacement by the motor is not inten-
ded for nonstop carrying up and down. In this case the
thermal protection switches off the motors. After letting go
the button and a short brake you may continue the carry-
ing procedure.
Set up the transmitter with the M6 adjustment screws
until the white line on the transmitter cover is in line
with the bending line of the machine.
Verify that the white line on the
transmitter is in line with the bending
line all over the entire movement
range of the transmitter support.
The red transmitting beams should
meet the receiver like it is shown in the
opposite illustration. When doing so,
please observe that the receiver stays
in the lower stop of the support. To check this, cover the
transmitter entirely. Then the receiver should not move
further downwards. The adjustment mode must be in ma-
nual mode (s. chap.5.8.)
Transmitter and receiver must be mounted at the same
height if both are installed in the lowest position of the
supports.
The receiver and the transmitter must be swiveled around the longitudinal axis in a way that their housings are pla-
ne parallel to the ram. With pivoting around the longitudinal axis, the adjustment screw or the locknut that counte-
racts the screwing movements, must be loosened.
Ram receiverhousing Fig.18/1
transmitter beams
AKAS®-3 Fig.18/3
-AKAS®-3...
FIESSLER
E L E K T R O N I K
Doku Nr. 1379 Stand 27.1.2017 /Aui
Mounting
adjustment of the AKAS® at the first installation
19
fine adjustment
5
5.7
lateral axis longitudinal axis angluar fastening: When
turning around the longitu-
dinal axis the lock nut of the
single M10 screw which is
located at the angle must
be loosened. (Otherwise
there is a danger of defor-
mation of the support hou-
sing!)
For checking whether the
laser beams are parallel to
the ram, a tool may be
clamped alternately in front
of the transmitter and the
receiver (Fig. 19/5).
Bild 19/1
The support of the transmitter must be turned around both the longitudinal and vertical axis until the laser beams
are aligned parallel to the ram.
The transmitter is moved upwards to the ram until the
tip of the ram covers a small segment of the highest
transmitting beam (Fig. 19/3). This will be in the
1o'clock positiion. When moving
the AKAS® for the first moun-
ting, the manual mode has to be
selected
If the tool is mounted completely
on the left or on the right hand
side, there must be always the
same projection (Fig. 19/3) on a
sheet of paper held behind the
tool (Fig. 19/5).
This check must be done with the highest (biggest)
and lowest (smallest) tool.
Fade-out
(dark edge)
Ram
Ram
tool pos.1
tool pos. 2
transmitter
paper
tool
tool
Fig. 19/5
paper
Then, the transmitter is carried upwards by pressing
the button "transmitter up/down". This action makes
the receiver follow.
When the highest highest position is reached, plea-
se check whether the receiver is also free and whet-
her the transmitting beams meet the receiver as
shown in Fig. 19/3. By this it is guaranteed that both
transmitter and receiver move parallel to each other
and to the bending line.
Doku Nr. 1379 Stand 27.1.2017 /Aui
Sending rays image on
white paper
-AKAS®-3...
FIESSLER
E L E K T R O N I K
It is important to note that the marker line is only a rough guide. After the coarse adjustment is finished please
activate the box bending mode and do the following tests:
a) an object which protrudes 3mm beyond the bending line into the machine must be detected
b) an object which protrudes 2mm beyond the bending line into the machine must not be detected
If a) is not met, the transmitter and receiver must be adjusted further forward towards the operator.
If b) is not met, the transmitter and receiver must be adjusted further backward, away from the operator.
Mounting
Adjustment of the AKAS® at the first installation
correction of adjustment errors
20
5
5.7
correct transmitter adjustment in correct transmitter adjustment
Fig. 20/1
case A
C
Dejustage possibility
AKAS®-3P...
Remedy
AKAS®-3P...
Position of dark (=covered) section is
not in 1 o'clock position but 12 o'clock
or earlier.
Position of dark section is not in 1
o'clock position but 2 o'clock or later.
By unscrewing all M6 adjustment
screws that are responsible for the lon-
gitudinal adjustment, (A,B,C) the sup-
port must be positioned further away
behind the bending line.
By tightening all M6 adjustment screws
that are responsible for the longitudinal
adjustment, (A,B,C) the support must
be put closer to the bending line.
If the position of dark section is not lo-
cated in 1 o'clock position but earlier
when using the lowest tool, and if it is in
the 1 o'clock position when using the
highest tool, the support stands too clo-
se to the bending line.
If the position of dark section is not lo-
cated in 1 o'clock position but later
when using the lowest tool, and if it is in
the 1 o'clock position when using the
highest tool, the support is too far away
from the bending line.
In the left tool position the dark section
is bigger than in the right tool position =
case B Fig. 20/1
In the left tool position the dark section
is smaller than in the right position = ca-
se C Fig. 20/1.
By unscrewing the upper M6 adjust-
ment screws that are responsible for the
longitudinal adjustment, (A,B,C) the
support must be positioned further away
behind the bending line.
By tightening the lower M6 adjustment
screws that are responsible for the lon-
gitudinal adjustment the support must
be put closer to the bending line.
The support of the transmitter must be
swiveled to the right in the slot.
The support of the transmitter must be
swiveled to the left in the slot.
In the left tool position the dark section
is located in the 1 o'clock position, in
the right tool position in an earlier posi-
tion.
In the left tool position the dark section
lies in the 1 o'clock position, in the right
tool position in an earlier position.
After unscrewing the M6 adjustment
screws B and after readjusting the up-
per right M6 adjustment screws A , the
support must be swiveled clockwise
around its longitudinal axis.
After unscrewing the upper left M6 ad-
justment screw A and after readjusting
the M6 adjustment screws B the sup-
port must be swiveled counterclock-
wise.
Doku Nr. 1379 Stand 27.1.2017 /Aui
case B case C
FIESSLER
E L E K T R O N I K
This manual suits for next models
1
Table of contents
