Fromm FS 250 User manual

FROMM CH12-TI-FS250.EN10
MASKED PARAMETERS FS 250 – FS 270 – FS 270+
As we have tried to make the machine as friendly a possibele, for maintenance purposes. We decided
to develop only one control board. All programms possibele in the FS 2XX series are already installed
on the board. We only have to change the different setting for some parameters to swich On or Off
these different functions.
To enter the parameter section:
Press the STOP button for five seconds
The indication of the parameter (F0, F1, F2, F3, F4, F5, F6 etc. ), which may be changed by means of
the «+» or «–», is shown on the left-hand side of the display.
The value of the parameter, which may be changed by means of the «+» or «–» is shown on the right-
hand side of the display.
These parameters are associated with:
F0 = Pallet overlap ( 7 ) (Settings between 0 – 100)
F1 = Friction delay ( 0 – 11 )
F2 = Friction voltage (motor pre stretch 100 )
F3 = Film cutting system ( 0 = OFF, 1 = ON )
F4 = Friction voltage before cutting (Settings between 0 – 255)
F5 = Cutting time ( 10 = 0,1 sec ) (Settings between 0 – 255)
F6 = Slow time (10 = 0,1 sec ) (Settings between 0 – 255)
We also have the possibility to regulate some parameters. This regulation can also be done on the
inverter itself. In any case it is advisebel the cheque the standard settings before any adjustment is be
done.
Regulation of the parameters
Push the button Stop + Manual toppress for 5 seconds
Insert password 16-07 than press stop again
T0 = Analog output 1 Inverter turntable (55Hz = 100 = 10V )
T1 = Analog output 2 Inverter carriage (60Hz = 100 = 10V )
T2 = Analog output 3 Inverter Pré – Stretch (60 Hz = 100 = 10V )
T3 = Analog signal offset = 10 Inverter
T4 = Gain signal offset = 10 Inverter
T5 = Pré stretch ( 0 = No, 1 = Yes )
T6 = Top press ( 0 = No, 1 = Yes )
T7 = Film broken ( 0 = OFF, 1 = ON )
T8 = Block parameters possible ( 0 = No, 1 = Yes ) (Standard 1)
T9 = Horse shoe turntable ( 0 = No, 1 = Yes )
T10 = Pre stretch indepentedly adjutabele
during carriage movement up and down ( 0 = No, 1 = Yes )
T11 = Sound of the alarm during the cycle ( 0 = No, 1 = Yes ) (Standard 0)
T12 = Different parameters for every cycle ( 0 = No, 1 = Yes ) (Standard 0)
T13 = Left side PW for un-blocking parameters ( 22 )
T14 = Right side PW un-blocking parameters ( 3 )
After changing or regulation of the parameters always switch of the machine. Wait for approx.
10 seconds and switch on the machine again.
MASKED PARAMETERS

FROMM CH12-TI-FS250.EN10
Differences with F7:
1. When you push START the 3 beeps of the buzzer are much faster (150msec vs 1sec),
2. Password for un-block the parameters
To block the parameters press the 2 buttons of the top presser for approx. 5 seconds, (1) +(2)
To un-block parameters press the 2 buttons of the top presser for approx. 5 seconds, (1) +(2)
then this will appear on the displays
Left side : “B_L” (D_L)
Right side: “B_R” ( D_R )
Notice!
ATTENTION NOW YOU ARE IN A SPECIAL MODE
DO NOT PRESS STOP
DO NOT PRESS EMERGENCY
Input value T13 on the left side
Input value T14 on the right side
then PRESS STOP and you have un-blocked the parameters.
Important NOTE:
If you put program F8 in a board, in wich there was F7 or older releases
you have to enter the hidden parameter menu to input all the correct
values. See page 20 for the standard values
We advise after uploading a new programm to check all the parameters:
-F0 – F6,
-Speeds and turns,
-Parameters of the cycles
MASKED PARAMETERS
D_L D_R
1 2

FROMM CH12-TI-FS250.EN10
CONTROL CARD FS 250 – FS 270 – FS 270+
Figure 1
Uploading a new programm
9Turn OFF the machine by switching the main switch to Zero
9Connect the standard modem cabel to ( 1)
9Replace the jumpers ( 2) both to the right (RUN = Left)
9Turn On the machine (Output on the machine display is )
9Start up the programm Flash 16
When you have started the programm you should see the screen at the next page.
Please see to it that all setting are equal.
Input J6 Digital
Input J7 Digital
Output J8 Digital
Output J9 Digital
Input J5 A Input J3
Flatcable to control unit
Jumpers (RUN = left side)
Standard Modem cable 2-2 / 3-3 / 5-5
Programm Eprom F0
1
2
CONTROL CARD FS 250 – 270

FROMM CH12-TI-FS250.EN10
Figure 2
9Search for the program on your hard disk, with extension .mhx (standard = out.mhx)
9Select the name AUTO (A) on your computer screen (The program will check the settings of
the machine and will upload the new program which is selected. When the computer is ready
with the uploading it will display the message “ALL OK”
9Select OK on the screen
9Turn off the stretch wrapping machine
9Take away the standard modem cabel from ( 1) (Figure 1)
9Place the jumpers ( 1) in the original position ( Leftside )
9Turn On the machine
9After pushing RESET the machine is ready for production
PROGAMMING FS 250 - 270

FROMM CH12-TI-FS250.EN10
Drawing Cabinet FS250 – 270
INVERTER SETTINGS FS 250 – FS 270
N5.5470
25
4
1
6
INVERTER SETTING FS 250 - 270
3

FROMM CH12-TI-FS250.EN10
How to change the inverters parameters.
When the inverter is in running mode the LED on is FREF (1)
In order to enter in programm mode push the cycle button (2) until the LED PRGM (3) becomes ON
On the display there is now n01, in order to enter another parameter push on the button (4) and (5)
Pushing the button (6) we enter in the actual parameter program, in order to change the values use
the buttons (4) and (5) and memorize it with (6)
With the button (2) you can turn-off the LED PRGM (3) and turn-on FREF (1)
STANDARD INVERTER SETTINGS
INVERTER OMRON SETTINGS
Turntable Carriage Pre - stretch
N01 Initialization 1 1 1
N02 Selection for the run control 1 1 1
N03 Selection for reference frequency 2 2 2
N09 Max. output frequency 55.00 60.00 90
N10 Max. voltage 230 230 230
N16 Acceleration ramp time 6.00 0.3 0.3
N17 Deceleration ramp time 3.00 0.1 0.3
N30 Upper output frequency limit 100 100 100
N31 Lower output frequency limit 8 30 0
N40 Assignment for the multifunctional exit 0 0 0
After installation of a NEW inverter please do not forget to start the inverter
first!
Otherwise the inverter will never work!!!
Start up procedure to decrease the intervent threshold with alarm Uul
N01 = 15
N97 = 2 + 10 = 12
N01 = 20
N01 = 12
Usefull to know !
Before maintenance ore trouble shooting always check the digital inputs of the machine. No digital
input mostly the connect switch is broken en has to be replaced. Always check the connections very
thoroughly.
Or check the latest version at the website www.fromm-stretch.com
Instruction FLASH MCU Programmer for F2MC-16LX.pdf
INVERTER SETTING FS 250 - 270

FROMM CH12-TI-FS250.EN10
ALARMS AND ERRORS
THE CARRIAGE DOES NOT STOP AT THE LOWER OR UPPER LIMIT STOP MICROSWITCH
The arrised problem Possible remidies
- Limit switches and not connected properly - Check the wiring
- Limit switch malfunctioning - Replace the limit switch
- Limit stop cam incorrectly positioned - Check for the position of the cams by
adjusting the respective adjuster screws
THE PHOTO ELECTRIC CELL IS NOT WORKING
The arrised problem Possible remidies
- Photo electric cell is not detecting the pallet - Check if the machine is not in program 6
- Check parameter 0 “pallet overlap”
- Check the background of the machine (To much white gives problems
- Is the colour of the stretchfilm
corresponding with the required photo cell
WHEN THE FILM TENSION VALUE IS INCREASED OR DIMINISHED, TENSION DOES NOT
CHANGE
The arrised problem Possible remidies
- clutch not connected properly - Check the connection
- clutch not working - Replace the clutch
Option kit 16.8240
ALARMS AND ERRORS

FROMM CH12-TI-FS250.EN10
THE MACHINE DOES NOT STOP WHEN THE EMERGENCY MUSHROOM-HEAD BUTTON IS
PRESSED
The arrised problem Possible remidies
- emergency circuit failure - Check the circuit
- emergency mushroom-head button not working -Replace the emergency mushroom-
head button
THE TURNS AT THE BOTTOM AND AT THE TOP OF THE LOAD ARE NOT REGULATED
PROPERLY
The arrised problem Possible remidies
- limit switches (1) not connected properly - Check the wiring
- limit switch malfunctioning - Replace the limit switch
-The control card (2) is not working properly - Replace the faulty card by carefully
referring to the wiring diagram attached to
the machine documentation
ALARMS AND ERRORS
1
2

FROMM CH12-TI-FS250.EN10
ALARMS AND ERRORS FS 250 / 270 / 270+
AL 1 = Carriage emergency limit switch
AL 2 = Main contactor
AL 3 = Inverter overload
AL 4 = Transpallet sensor
AL 5 = Film tearing alarm (optional)
AL 6 = Encoder sensor
AL 7 = Toppres sensor
ALARM RESET
After having cleared the fault, push the RESET button
AL1 CARRIAGE EMERGENCY LIMIT SWITCH
The arrised problem Possible remidies
-This alarm signals that exerted pressure on the
carriage has been detected by the microswitch that
interlocks the crush-proof guard
- Check the situation
- Microswitch incorrectly positioned or connected - Position the microswitch correctly
- Microswitch not working properly - Replace the microswitch
AL2 MAIN CONTACTOR
The arrised problem Possible remidies
- This alarm signals that the emergency button was
pressed
- Check the situation and deactivate the
mushroom-head button
- Emergency button not working properly - Replace the emergency button
ALARMS AND ERRORS

FROMM CH12-TI-FS250.EN10
AL 3 INVERTER FAULT IN FS 250 – FS 270
The arrised problem Possible remidies
-This alarm signals the blocking of an inverter
-Turn off the machine. Wait 20 seconds
and turn it on again.
If the problem persists:
-Check the situation on the display of the
inverter referring to the inverter
instruction manual that is enclosed with
the machine documentation
-Check for the presence of mechanical
motor locks, if any, and proceed as
required
-Inverter gives the alarm “OL1” -Change parameter N32 to 2,77
If the alarm persist
-Increase the value of N31 for example
from 18 to 22 (Minumum frequency)
If the alarm persist
-if the cycle is longer than 8 minutes.
Increase value N34 from 8 to 12
-Pré stretch not working after building in option
package 16.8242
-Check the connection of the wires
-Place the inverter manualy on PNP
-Check the output on J3 analogue value
Wire A3 = 10 Volts
-Parameter T5 = Pré stretch = 1
After changing the parameter switch OFF
and ON the machine.
- Inverter not working properly -Replace the inverter
Al 4 TRANSPALLET / Horse shoe turntable
The arrised problem Possible remidies
- Phonic wheel sensor incorrectly positioned
- Check for the correct positioning of the
sensor as compared to the phonic wheel
The distance should not be more than 2mm
- Check for the correct connection of the
sensor by means of the associated
connector
- Sensor not connected properly - Replace the sensor
ALARMS AND ERRORS

FROMM CH12-TI-FS250.EN10
AL 5 FILM TEARING ALARM (Option 16.8242)
The arrised problem Possible remidies
This alarm indicates that the non-work time set for
the rubber pin (1) has elapsed due to:
Film roll finished
- Replace the roll
- Film tearing - Restore the film
- Card (2) not working - Replace the card
COUNT SENSOR FOR CARRIAGE PHONIC WHEEL
The arrised problem Possible remidies
-Phonic wheel sensor incorrectly positioned
- Check for the correct positioning of the
sensor as compared to the phonic wheel
The distance should not be more than 2mm
- Sensor not connected properly
- Check for the correct connection of the
sensor by means of the associated
connector
- Sensor not working properly - Replace the sensor
1
2
ALARMS AND ERRORS