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Summary of Contents for Perfecta 76 UC
- Page 1 SERVICE INSTRUCTIONS PERFECTA 76 / 92 / 115 / 132 / 168 UC / TV (Servo) The Service Instructions manual belongs to the hands of the repair and maintenance personnel ! 1/01 E Service Instructions...
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Page 2: Table Of Contents
Table of Contents Page General Instructions ........................4 Safety Inspection ........................... 4 Knife Drive ............................. 6 Setting the Automatic Stopping Device ................6 Knife Drive Clutch and Brake Assembly ................6 Clutch/Brake Assembly Maintenance ................. 8 Malfunctions in the Knife Drive .................... 8 Clamping System .......................... - Page 3 Computer Control ........................... 33 Control Processor ....................... 33 Safety Module ........................34 PC Design ........................... 35 Software ............................35 UC Software Change ......................35 TV Software Change ......................36 Settings/Operating Data ......................... 37 Service Nenu ..........................39 I/O Test Menu ..........................41 Keyboard Code ..........................
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Page 4: General Instructions
According to the Accident Pre- Fig.2 shows an acceptance check sisting of hazardous movements vention Procedures for the Print- list as used by PERFECTA. such as clamping and cutting, ing and Paper Processing In- guillotines must meet a number of dustry, VBG 7i, §... - Page 5 Fig. 2 1/01 E Service Instructions...
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Page 6: Knife Drive
When the knife beam runs over Knife Drive The cam of S52 should be set the UDC (S54 no longer oper- so that the machine would stop ated at stop position), any subse- at the upper dead centre and Setting the quent cut triggering is disabled. - Page 7 Checking and Setting the Air Under normal operating condi- tions, the air gap should be checked once per year. For air gap A, refer to the Table (Fig. 5). • Engaged state (clutch "ON"): If air gap A min is smaller than specified in the Table, Fig.
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Page 8: Clutch/Brake Assembly Maintenance
Clutch/Brake Malfunctions in the Assembly Knife Drive Maintenance Check the air gap annually as The following malfunctions may • The knife or clamp drive cannot described above and correct with occur in the knife drive and are be started. not indicated by the computer shims, if required. -
Page 9: Clamping System
Clamping System In addition to gap s between the Machine Size 76 (Fig. 7) knife back and the clamp edge, the play of the clamp in its • Slacken screws 3 to release guideways is decisive to obtain a clamp guideway 4 at the clamp high-quality and high-accuracy left and right rear sides. -
Page 10: Play In The Clamp Guideways
Machine Size 92 (Fig. 8) Machine Sizes 115/132 (Fig. 9) Fig. 8 shows shims 3 under pre- • Slacken lower nuts 3 at the tensioned roller guideway 4 by clamp left and right sides. means of which the position of clamp 1 with respect to cutting •... -
Page 11: Clamp Parallelism With The Cutting Table
Machine Size 92 (Fig. 8) • Reset adjusting strip 8 against The clamp is guided by pre- guide blocks 9 by adjusting tensioned roller guideways, i. e. it screws 6 until play a between the is play-free. Therefore, readjust- adjusting strip and the guide block ing is not necessary. - Page 12 - Reducing the distance between • Tighten screw 1 and re-fit the the pusher rod eyes moves up paneling. the clamp on the right. • Tighten clamping screws 1, check for parallelism as described above, and re-fit the paneling. Machine Size 92 (Fig. 12): Adjusting the clamp right-hand side is analogue to that for ma- chine size 76.
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Page 13: Cutting System
< 0.05 mm. rectification are summarized in our "Cutting Compendium" that Checking the play: you can ob-tain from PERFECTA. • Push the knife beam (without Play in the Knife knife) against the frame from the Beam Guideways rear at the top and bottom posi- tions. - Page 14 Machine Sizes 115/132 (Fig. 17) Machine Size 168 (Fig.18) Knife beam 1 moves between Knife beam 1 moves between the slide surfaces 2 on the machine slide surfaces on machine frame frame and guide strips 3. The 2 and guide strips 3. On top, the guide strips are supported in guide strips rest on two stud bolts machine front part 5 by guide pins...
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Page 15: Readjusting The Knife Cut-Through Position
"Knife to "Setting the Automatic Stop- Drive Assembly Overload Pro- ping Device". tection Device". In addition, all PERFECTA guillotines are provided with a mechanical non-repeat device (catch/locking pin), a third safety means for the upper dead center, which locks the knife beam to the machine frame. - Page 16 Setting Instructions Machine Size 76 (Fig. 20) The length of chain 1 between solenoid Y80 and catch 2 is set by a screw 3 so that the catch forms a gap s = 0.6 - 1.0 mm with re-spect to the bearing surface on the frame.
- Page 17 Machine Sizes 115 and 132 (Fig. 22) Screw in chain 1 which connects solenoid Y80 with catch 2 with the aid of threaded pin 3 to be turned in deep enough and lock it so that between catch 2 and catch stop 4 is a gap of s = 0.6 - 1.0 mm when the solenoid is dead.
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Page 18: Cutting System Maintenance
Never use any caustic agents. abrasive cloth or sand paper. Ti- The clean table is susceptible to tanium fleece or a conventional For PERFECTA guillotines of the household fibre scouring pad has corrosion, particularly in the han- same models and sizes, the knives dling area. -
Page 19: Backgauge Guidance
Backgauge Guidance Machine Sizes 76 and 92 Machine Sizes 115 and 132 The backgauges of the 76 and 92 The backgauges of the 115 and size guillotines are guided by pre- 132 size machines have a round tensioned linear guideways (roller guidance (slide guidance) located guideways), i. -
Page 20: Thread Backlash Compensation
Machine Sizes 168 (Fig. 25) If some play should occur after a Then check the rollers for smooth longer period of operation, you running over the entire length of Backgauge 1 is guided by a car- can use the eccentric rollers to the guideway. -
Page 21: Measuring System
Calibrating the Measuring Setting the Proximity Measuring System Switches System On PERFECTA guillotines, the Select the "Calibration" (TV)/ Adjust front proximity switch B39 actual and desired measurements "Factory Calibration" (UC) option so that it is activated at 200 ± 50 are displayed on the control panel. -
Page 22: Hydraulic Clamping System
Hydraulic Clamping System PERFECTA guillotines have a continuously adjustable double- = Fast-speed pressure-relief = Test point for "free circu- piston hydraulic system with a valve lation" and pre-clamping very wide clamping force range. = Clamping pressure-relief = Clamping pressure test... - Page 23 The individual working stages of the hydraulic clamping system are: Machine at Basic Position (free circulation) (Fig. 29) The main motor is on. The pump runs. The knife beam and the clamp are at their topmost posi- tions. Multi-way valves VW1 and VW2 are at rest (Y1, Y2 not operated).
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Page 24: Pre-Clamping
Pre-Clamping (Fig. 30) From the basic position, the VDR valve is operated by the pedal. The former inlet of VW1/VW2 is closed. Pressure builds up from pump P, via RV1, VW1/VW2 as well as VD1 and VD1.1 which de- termine the value of the pressure. The oil flow is applied to the fast- speed piston. -
Page 25: Cut Triggering
Cut Triggering Clamp Fast Speed (Fig.31) Operating the two-hand knife con- trol pushbuttons activates Y1/ VW1 and Y2/VW2. This blocks the oil circulation and applies the entire oil flow to the fast-speed piston of cylinder Z. The plunger comes out with fast speed and moves the clamp down. -
Page 26: Main Clamping
Main Clamping (Fig. 32) Due to the overflowing of VD2, the main pressure preset by clamping pressure valve builds up in the fast-speed and main cylinder chambers. Fig. 32 1/01 E Service Instructions... -
Page 27: Decompression
Decompression (Fig. 33) After the knife has cut through, the computer control system turns off Y1/VW1 which then goes open. The pressure existing in the cylin- der chamber can thus relax. The oil flow from the pump returns to the tank via VW1, VDR and F. Fig. -
Page 28: Clamp Return
Stroke Limit Function Clamp Return (Fig.34) You can preselect the stroke limit Due to the decompression, VD3 For the 76 and 92 machines, the from the machine's setting menu is no longer overflown, the flow clamp is brought to its topmost (refer to the Operating Instructions indicator does not detect any position by a compression spring,... -
Page 29: Start-Up
Start-Up For reasons of fire precautions, With the aid of the VD2 acting as Important! the machine is supplied with an Insufficient alignment of the acceleration or fast-speed valve, empty oil tank. the clamp fast speed is regu- machine at its place of installation lated. -
Page 30: Checking The Adjustment
"Cutting Compendium" you can obtain from PERFECTA . Stock-dependent empirical val- ues can be obtained from the tables in the "Cutting Compen- 2nd Switching Point (Fig.37) dium"... -
Page 31: Malfunctions In The Hydraulic Clamping System
Malfunctions in the Remedy: - Fatigue of the clamp balancing - The flow indicator remains op- spring. Hydraulic Clamping erated. For machine sizes 76 and 92: System - Reed contact welding. Replace- Replace spring assembly. ment of the contact is necessary. For machine sizes 115 and 132: Tension the tension spring as- If malfunctions occur in the hy-... - Page 32 Adjusting the S69.1 Stroke • No clamping pressure build-up, • The hydraulic oil forms much Limit Pedal Switch or clamping pressure is built up foam. too slowly. Remedy: When the stroke limit function is Remedy: - The suction line of the pump is active, adjust switch S69.1 on the - See above: "No clamp fast- not immersed deep enough into...
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