Penta Series with Video Process-CNC – Instruction Manual – Edition 05-1985

 

Hydraulic and Electrical Adjustments – Section III

Abbreviated setup notes taken from manual.

Do Not exceed 12V output when setting Max-Min trimmers.

Before VP2 (proportional valve), set min-max voltages of VP6 (proportional valve).

VP6 – Flow Calibration – 3.10

Card 30 - meter 71-70 (top) - RV1 mould sensing, RV3 max speed, RV4 min speed

• Final Braking Speed
  • when mold opening (P2 pressed) adjust RV1 for smooth travel – Note avoid sharp mold movement
• min flow level calibration (speed)
  • when mold closing (P1 pressed) adjust RV4 for approx 4V
  • when mold closed – does toggle crosshead stay put (toggle fully extended), no opening begins
  • increase RV4 to see if opening starts
  • decrease RV4 until crosshead locked
• max flow level calibration (speed)
  • view page-02
    • CONSTANT SPEED OPENING = YES
    • MOLD OPENING STROKE = set for machine type spec)
    • SPEED 1-3 STAGE OPENING = 50%
    • FINAL OPENING BREAKING SPEED = 99%
  • open mold (press P2) – LED stays on ??
    • no : reduce stroke of mold jack (RLC device, code 035) until P2 LED lights
  • adjust RV3 for 7.2V

VP2 – Flow Calibration

Hydraulic Calibration

• remove coil VP2 from solenoid
• on manual, close then open mold – watch both movements
  • if smooth (no pulsation), calibration is correct or high
  • adjust spindle (fig 3-2, detail 1, under nut-cap), anti-clockwise 1-deg at a time, repeating open-close cycle, for lowest speed without pulsation.
    • if pulsating, rotate spindle clockwise 1-deg at a time
  • lock spindle, replace cap
• replace coil VP2 on solenoid

Electrical Calibration – 3.2.2.

Card 29 - meter 62-61 (top) - RV3 max flow, RV4 min flow

• Minimum speed level calibration – 3.2.2.1
• view page-02
  • BREAKING THROUGHOUT THE STROKE = YES
• view page-03
  • SET MAXIMUM MOLD PRESSURE TO CLOSE TOGGLE : for machine type ???
• on manual, open the mold
• adjust RV4 for approx 2.5V (while open/close active)
• view page-02
  • BREAKING THROUGHOUT THE STROKE = YES
  • CONSTANT SPEED CLOSING = YES
  • CONSTANT SPEED OPENING = YES
  • SPEED 1-3 stage closing = 15%
  • SPEED 1-3 stage opening = 15%
• on manual, close and open mold looking for noticeable variation in speed
  • if yes, min speed level calibration is valid
  • if no, voltage low, increase RV4 until there is a noticeable variation

• Maximum speed level calibration – 3.3.3.2
• Note: MUST BE MATERIAL IN THE HOPPER
• view page-08
  • SCREW ROTATION WITH 2 PUMPS = NO
• view page-02
  • SLOW SPEED COMPLETE STROKE = YES
• view page-10
  • SPEED-VI = 99%
• on manual close mold then screw rotation (pressing P1 and P4) – maintain during calibration
• adjust RV3 (still on card 29) for maximum screw rotations – likely approx. 5V
• check if number of screw rotations varies with speed setting
  • view page-10
    • change SPEED-VI = from 99% to 95%
  • press screw rotation button P4
    • does screw rotations decrease
      • if no, max set too high so decrease V with RV3
• NOTE: screw rotation P4 must be cycled after each change to check rotations

Pressure Control – VP1 – 3.4

• Hydraulic Calibration
• Ensure maximum hydraulic pressure – 3.4.1
  • remove cap – loosen locknut – seat spindle – lock locknut

• Electrical Calibration – 3.4.2.1 – Card 29 – meter 60-61 (bottom)
  • see pressure chart bottom of page 3-3
• Minimum pressure level calibration
• view page-03
  • HIGH PRESSURE LOCKING = (min mm from bottom of page-03 under “position, high press from…to…mm”)
• on manual close mold – hold P1 during whole calibration operation
• adjust RV8 (min level), V approx 1V
• view page-03
  • HIGH PRESSURE = at least 10 Bar higher than machine min setting
• on manual mold closing – button P1
  • pressure gauge P1 on the gauge – check level
  • adjust RV8 until gauge shows page-03 HIGH PRESSURE
• if no change when page-03 setting changed
  • adjust RV7 to reduce voltage on meter
• NOTE: mold closing P1 must be cycled after each change to check pressure

Electrical calibration can be considered complete – go to “Final Hydraulic Calibration”

• Maximum pressure level calibration

Final Hydraulic Calibration – 3.5

• view page-03
  • HIGH PRESSURE = (max value (MAX….BAR)
• set pressure gauge to position P1
• on manual close mold (pressing P1) watching pressure
• remove cap, loosen locknut – fig. 3-4 detail-1
  • turn spindle anti-clockwise for reading approx 10 bar below working pressure
  • turn spindle clockwise to working pressure
  • lock spindle and replace cap

Flow Calibration – VP4 – 3.6

Electrical Calibration

Card-31 - meter 64-65 (top) - RV3 max flow RV4 min flow

• Minimum speed level calibration – 3.6.1.1
• Maximum speed level calibration – 3.6.1.2

Pressure Calibration – VP3 – 3.7

Hydraulic Calibration

Electrical Calibration

• Min pressure level calibration – 3.7.2.1
• Max pressure level calibration – 3.7.2.2

Final Hydraulic Calibration – 3.8

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Flow Calibration – 3.10

See beginning of Section 3.  This is done first.

Moog Valve Calibration – VP5 – 3.11 replaces 3.9

Card-33 and 33 - meter 64-65 (top) - RV3 max flow RV4 min flow

• Supply voltages on back of Card-32 and Card-33 must be within spec. (manual page 3.9) – 3.11.1
• Servovalve zero calibration – 3.11.2
• Check of the suck-back signal – 3.11.3
• Check of the speed setting – 3.11.4
• Check of the real injection speed – 3.11.5
• Check of the hold pressure – 3.11.6
• Calibration of CPO-CPC transducers – 3.11.7
• Check of hold pressure – 3.11.8
• Check of screw back pressure – 3.11.9

Calibration of Injection Carriage Transducer – 3.12

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Calibration of Hydraulic Ejector Position Transducer – 3.13

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Calibration of Mould Position Transducer – 3.14

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Calibration of Injection Axes Position Transducer – 3.15

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Calibration of Hydraulic Pressure Transducer (CPO) – 3.16

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Calibration of Cavity Ppressure Transducer (CPC) – 3.17

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Temperature Controller Calibration – 3.18

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