Dolev 4press - Dolev 4press Parameters Description

Author/Submitter: A. Posner (01/29/96)
Document Released: 01/29/96

Product Family: Imagesetters / Platesetters

• General
• First Advance
• Advance
• Attachment
• Stretch
• Plot Parameters
• Relief

LDM - Load Motor

TKM - Take Motor

All the values in this description are for new DC motor driver and Pittman 31:1 motors

Please refer to the motors parameters updates for the correct numbers

First Advance

1. LDM Velocity    45
2. TKM Velocity    32
   Will determine the speed differences between the loading and unloading motors during first advance.
3. Motors Torque    28
   The current to the loading and take motors during first advance . It will determine the force of the motors. It can be change according to the media.

Advance

4. Advance LDM Velocity 50
5. Advance TKM Velocity 40
   Will determine the speed differences between the loading and unloading motors.
6. Advance ACC/DEC TIME msec 1000
   Acceleration time for loading and unloading motors during advance.
   To eliminate bumps in the system
   The system will work with known acceleration.
7. Advance DELAY TIME msec 400
   The delay time between the motors ( Loading motors first )
   This is to make sure that the unloading motor will start only after the loading and the film will not fall into the drum.
8. Motors Torque 28
   The current to the loading and take motors during advance . It will determine the force of the motors. It can be change according to the media.
9. Cassette Init. Velocity 50
   The Init voltage to the unloading cassette motor in order to stretch the film at the beginning of the loading for zeroing the buffer.

Attachment

10. ATTACH Velocity 55
    The voltage to the loading and unloading motors during attachment
11. LDM ATTACH Torque 22
    The current to the loading motor during attachment.
    Controlling the attachment force in the loading side.
12. TKM ATTACH Torque 30
    The current to the unloading motor during attachment.
    Controlling the attachment force in the unloading side.
13. ACC/DEC TIME msec 1000
    Acceleration time for loading and unloading motors during attach.
14. Period (msec ) 1500
    The time of the attachment.

STRETCH

15. STRETCH Velocity 35
    The voltage to the unloading cassette motor in order to stretch the film at the end of the loading for zeroing the buffer.
    If it is too low it will not rotate.
16. STRETCH Torque 20
    The current to the unloading cassette motor . It will determine the force.
    If it is too much the film will be pulled from the drum.
17. Delay TIME msec 3000
    The stretching time for all the above sequences

LOOSE

18. LDM FILM LOOSE LENGTH ( mm ) 0
    The film length that is released ( Back to the cassette ) before loading. ( 0 for now might be use in the future to eliminate film braking)
19. TKM FILM LOOSE LENGTH (mm) 3
    The film length that is released before loading.
    It is important to prevent problems because of film and drum friction. ( After attachment )
20. Buffer length 7
    The buffer length between the unloading rollers and the cassette
    The buffer is needed to prevent stretching of film inside the drum and to prevent side driving of film because of the cassette.

Plot Parameters

21. LDM PLOT Torque 12
22. TKM PLOT Torque 12
    The same as for attachment but during plot.

Relief

23. LDM Relief Length 0
    The relief length by the Loading Motor ( Will be used only if a relief will be needed. )
24. TKM Relief Length 0
    The relief length by the Take Motor ( Will be used only if a relief will be needed. )