Nofdson* CORPORATlOU / Amherst. Ohio 44001

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1 Nofdson* CORPORATlOU / Amherst Ohio 441 TECHNICAL PUBL /CATION 57-l 5-o MANUAL 57-I 5 PALLETIZING TIMER MOD/EL CT-8 P/N /SSUED SUPERSEDES 12/76 NORDSON CORFORATION 1981 Rights Reserved

2 5 7-Pi-oi Nordson coapoaba TIOU / Amherst, Ohio 441 TECHNICAl PUBLICATION CONTENTS Title Page o Contents - Description -1 Specifications -2 Installation -3 Operation -5 Adjusting Bead Placement -6 Daily Operation -6 Trouble Shooting -7 Electrical Diagram -1 Illustrated Parts List -11 Recommended Spare Parts List -13 Supplemental Parts List -13 ISSUF o 12/76 SUPERSEDES US A

3 CORPORATION / Amhersr, Ohio 441 TECHNICAL PUBLICATION PALLETIZING MODEL TIMER CT-8 Figure 1 - Model CT-8 Timer DESCRIPTION The Model CT-8 T tmer is a solid-state sequential timing device that has four (4) timers and two (2) output channels A photocell-light source triggering device starts the timing sequence which consists of an initial time interval followed by three additional independent time intervals The initial time interval may be programmed to provide a delay or duration sequence depending upon application requirements The CT-8 Timer may be used in conjunction with a single-acting pump applicator and automatic gun(s) to accurately position hot melt beads on cases in palletizing applications In such an application the initial time interval and three following interval sequences signal the single-acting pump The second and forth time interval trigger the automatic gun(s) NOTE: The CT-8 has two output channels each capable of accommodating a maximum current draw of 2 24 VDC However, no more than 2 amperes may be actuated during any one time interval momentary short When the CT-8 must be used The timer output will withstand a is used with the HM VIII applicator a low current draw solenoid Use filter-regulator-solenoid assembly P/N Part No Description 1 Qty Solenoid/Filter-Regulator, 115 VAC/24 VDC Ref Valve, Solenoid, 115 VAC/24 VDC 1 Nipple, Close, l/8 NPT 1 e Filter-Regulator w/gage, l/4 NPT 1 Bushing, Reducing, l/4 to l/8 NPT 1 1 SIIPFRcFncc 17/7h CCFYRIGHT fi> 1977 NCIRDSON

4 Nordson CORPORATION / Amhersr, Ohio TECHNICAL PUBLICATION A r E SPECIFICATIONS A 135 in (3429 mm) B 15 in (2667 mm) c 525 in (1334 mm) D 8 in (232 mm) E 1275 in (3239 mm) li, i k-----c t Figure 2 - Model CT-8 Dimensions T m 1 - I - PUMP OUTPUT - GUN OUTPUT Time lnterva Range (mill i seconds) Low High Time lnterva ms 15-1, ms 8-18 ms 3-36 ms ms 15-1, ms 8-18 ms 3-36 ms Input Trigger Photosensor,, Break1 ig ht Repeat Accuracy Error Less than + 1% of set time - Temperature Drift Less than + :3% from 32-14OOF - (O -6 C) Operating Temperature Range 32OF (OOC) to 14O F (6O C) I output 24 VDC - Two outputs with 2 ampere maximum current draw Input Power Requirements VAC, 5/6 Hz, 1 Phase VAC, 5/6 Hz, 1 Phase VAC, 5/6 Hz, 1 Phase VAC, 5/6 Hz, 1 Phase Input Trigger Parts List: Part No Description Light Source, Photosensor Receiver, Photosensor ISSUED 7/79 SUPERSEDES 7/i77 USA

5 Nordson CORPORATION /Amherst, Ohio 441 TECHNICAL PUB1 /CATION INSTALLATION Remove the CT-8 Timer from the shipping container Careful I y inspect the components for shipping damage Open the CT-8 cabinet door and visually check for loose connections and broken wires 1 Install the timer on the parent machine or separate stand so that the front panel is readily accessible, NOTE: Do not subject the timer to excessive vibration Use vibration insulators if necessary Do not subject the timer to excessive dust or moisture 2 Open the cabinet door after loosening the two (2) retaining clip screws 3 Make all electrical connections on the terminal board (TB-1) located in the upper right corner of the cabinet NOTE: There are four (4) models of the CT-8 Timer available Be sure to connect the timer to the correct power supply Applying the incorrect voltage may damage the components To make the electrical input connections follow these steps: a Confirm the voltage requirements of your CT-8 Check the nameplate for part number and voltage specifications NOTE: Do not field convert the timer from one voltage requirement to another b Attach Ll to terminal #l; attach the neutral side of the power supply to terminal #2; secure the grounding wire to terminal # TB- 1 & GND NEUTRAL LINE t AC INPUT Figure 3 - Input Power Electrical Connections To avoid electrical shock during installatiion and trouble shooting install a circuit breaker on the service line ahead of the Timer Using this circuit breaker, shut off all power to the timer during installatiion and service operations Position and secure the photocell and light source on the parent machine in the appropriate location For best results, position the photocell and light source as close together as possible The maximum distance should be no more than 6 Ft (18 meters) Make the electrical connections using the following steps: USA /SSUEO 12/ NORDSON

6 Nordson CORPORATION /Amherst, Ohtb 44t TECHNICAL PUBLICATION INSTALLATION, (Continued) 4 To connect the trigger input (photocell receiver) electrically to the CT-8: For photosensor break1 ig ht (or normally closed switch) mode connect each lead wire to termina Is #4 and #5 Then s cure the cab le shield to terminal P 4 NOTE: Ground the shield at terminal #4 Do not ground the shield at the other end - false triggering may result The Black lead must be connected at terminal #4 See 57-O-9 PHOTOSENSOR BREAKLIGHT (BkL) MODE PHOTOSENSOR RECEIVER NOTE: NO JUMPER BET WEEN 485 T Figure 4 - Trigger Input Connections 5 Connect the light source electrical leads to terminals #7 and #8 6 Connect the pump and gun solenoids (24 VDC only) to the Timer in this manner: a Pump solenoids are connected to terminals #9 and #lo - b Gun solenoids are connected to terminals #l 1 and #12 7 The CT-8 is ready for operation Maximum current draw is 2 amps Do not short out or jumper terminals #9, #lo, #ll, and #12 (ELK) (GRN) INPUT BREAKLIGHT MODE (~~VAC) TO SOLENOID VALVE COILS (24VDC) Figure 5 - TB-1 Electrical Connections ISSUED 7/77 SUPERSEDES 5p7 US /

7 Nordson CORPORATION /Amherst Ohio 441 TECHNICAL PUB1 /CATION OPERATION The CT-8 Timer is signalled by a photocell-light source The gun(s) solenoid 24 VDC only, is connected electrically to the gun output channel of the timer terminals #ll and 412 on TB-1 The single-acting pump solenoid (24 VDC only) is connected to the pump output channel (terminals #9 and #lo on TB-1) NOTE: Each gun must be activated by its own solenoid The CT-8 will accommodate a maximum of two 24 VDC solenoids with a maximum current draw of 2 amperes Circuit Board Controls The CT-8 offers two time ranges for each time interval The time range is selected by moving a slide switch to the appropriate position Each slide switch corresponds with a single-turn potentiometer located on the cabinet face Switch ~ I- Time Interval1 A B C D TI-1 TI-2 TI-3 TI-4 Sliding the switches toward the rear of the cabinet provides the low (short) time range Sliding the switches toward the front of the cabinet provides the high (long) time range The PUMP INTERVAL OUTPUT switch E determines whether the single-acting pump will be actuated during the first time interval Sliding switch E toward the front of the cabinet will cause thepump to actuate during the Time Interval 1 Sliding switch E toward the rear of the cabinet will delay the pump actuating until Time Interval 2 Figure 6 - Circuit Board The fuse@protects the circuit board from damage due to electrical failure (overload) USA ISCIIEII s/77 COPYRIGHT (?) 1977 NORDSON

8 Nordson CORPORATION /Amherst, Ohio 44~1 TECHNICAL PUB1 ICATION OPERATION, (Continued) Adiustina Bead Placement on the Case 1 Turn on the Hot Melt applicator and gun system,allow the system to reach the recommended application temperature NOTE: Refer to the Applicator Service Manual for correct operation instructions 2 3 Turn the CT-8 ON I Slide switch E (see Figure 6) to the appropriate position a If the pump is to actuate during the initial time interval slide the switch to the rear of the cabinet b If the pump is to actuate during the second time interval slide the switch to the front of the cabinet Using the Nomograph (57-O-5) set the potentiometers to the approximate time intervals Run a case through the machine Check case flaps for bead position Adjust potentiometers if bead position is not correct When the bead position and pattern is acceptable lock the potentiometers in place The CT-8 is programmed for use Once the CT-8 Timer has been installed and the time intervals set, it is not necessary to readjust the Timer unless the line speed is altered or substrate size (bead pattern) is changed Dail Y Start-Uo 1 Turn the Timer ON at its toggle switch 2 Turn the Hot Melt applicator ON Daily Shut-Down 1 Turn the Timer OFF at its toggle switch 2 Turn the Hot Melt applicator OFF lssum 12/76 SUPERSEDES USA

9 Nordson CORPORATION /Amherst Ohio 441 TECHNICAL PUBLlCATlON General TROUBLESHOOTING As with any solid-state device, the Model CT-8 requires no periodic maintenance unless the unit is subjected to adverse environmental conditions such as dust, vibration or moisture Nevertheless, difficulties may occur with the operation of a timer system Before trouble shooting the CT-8, determine that the problem does in fact rest with the control Applicator Operation The capability of an applicator is also a factor in obtaining satisfactory operation Insure that air pressure to the pump and the gun solenoids are correct and constant Erratic gun firing can result if the triggering air pressure is inadequate Operating air to the solenoid must be filtered to remove dirt and water Lubrication usual I y is not required Physical Conditions The guns should be mounted securely, constant and the distance to the substrate should be uniform and Air movement around the guns can have an adverse effect upon the system s operation guns should be shielded from moving air that cannot otherwise be eliminated The CT-8 Operation Trouble shooting the CT-8 usually can be limited to the terminal board (in the upper right corner of the cabinet) and the potentiometers I If the adhesive output lamps (on the cabinet face) flash, the problem is probably outside the Time Interval Control The following chart will help in checking out the CT-8 unit: PROBLEM No power to timer (unit on lamp OFF) I CAUSE Chleck 1 amp slow blow fuse Chleck continuity of toggle switch Check input power connections Guns or pump not firing (output light FLASHES) Check nozzle for clog Check solenoid and coil Check photocell/light source Check solenoid circuit voltage Guns not firing (output light NOT FLASHING) Check output lamp Check fuse on circuit board Check slide switch(s) for continuity Check transformer secondary Check potentiometers Check transistor and circuit board for 1 proper vol tage (see Page o) USA ISSUED 1 z/76 SUPERSEDES 1976 NCIRDSON

10 5 7- I 5-8 Nordson CORPORATION /Amherst, Ohio 441 TECHNKAL PUB1 ICATION TROUBLE SHOOTING, (Continued) PROBLEM I CAUSE I Guns fire erratical I y Check photocell/light source (or limit switch) Check potentiometers Check gun solenoid coil Replace circuit board Shut off all power to the CT-8 before opening the control cabinet Use the circuit breaker you installed ahead of the timer Conduct all continuity and resistance checks with the power off To check the sinale-turn dials: 1 Unplug the printed circuit board at Jl (refer to Electrical Diagram) 2 Rotate the dials counter-clockwise to zero 3 Attach an ohmmeter to the two outside terminals on the potentiometer 4 Set the meter to the 1OOK scale 5 Slowly rotate the dial clockwise The resistance should increase steadily to 1OOK ohms if the resistance drops off during the test replace the potentiometer (A dead spot in the potentiometer may cause erratic gun firing) 6 Repeat this test with each potentiometer To check the transformer primary: 1 Turn on the power to the Time Interval Control,, 2 A voltage reading within the operating line voltage limits should be obtained between terminal #l on TB-1 and the ground stud (at the top of the cabinet) Be careful Electrical shock can be deadly Do not come in contact with the electrically hot terminal board To check the transformer secondary: 1 Turn on the power to the Time Interval Control, 2 Push the timer toggle switch to ON 3 Check the voltage across pins #3 and #5 in the six-pin circuit board plug (these are the two red wire I eads) A reading between 2 and 3 VAC should be obtained If not, replace the transformer Electrical shock can kill Do not come in contact with the input power leads on TB-1 (terminals #l, #2, and #3) ISSUED 12/76 SUPERSEDES US A

11 NOrdSott CORPORATION /Amherst, Ohio 441 TECHNICAL PUB1 ICATION TROUBLE SHOOTING, (Continued) To check the solenoid circuit voltage: 1 Turn on the CT-8 P lug in the circuit board at Jl 2 Check the voltage across terminal #9 on TB-1 and the ground stud (at the top of the cabinet) A reading between 24 and 28 VDC should be obtained If not, replace the transistor or circuit board To check the gun solenoid for proper resistance: 1 Shut off power to the CT-8 2 Remove the solenoid lead wires from terminals #9, #lo, #ll and #12 on TB-1 3 Check for proper resistance across each solenoid coil If the reading does not meet this specificiation, replace the solenoid NOTE: If the circuit board fuse blows, check the solenoids for proper resistance To check the photosensor/light source: 1 Turn on power to the Time Interval Control 2 Check the voltage across terminals #7 and #8 on TB-1 A reading of 63 VAC should be obtained If not, replace the transformer NOTE: In the case of a photocel I trigger device, care should be taken to insure the photocell and light source are in line If the are not proper1 in line the system wi II not function Check to see that t ti e light beam is i eing projetted in the direction the light source is aimed 3 4 Check the photosensor e lectrica I connections,, The black lead and the ground shield must be connected to terminal #4 The red lead is connected to terminal #5 (breaklight mode) Confirm the phototransistor receiver alignment With the timer power ON, test for minimum voltage (less than 5 volt) across the red and black leads See 57-o-1 for complete instructions USA ISSUED 7177 SUPERSEDES 12/ NORDSON

12 5 7- I 5-1 O Nordson CORPORA TION / Amherst, Ohio 44~ TECHNICAL PUB1 /CATION PUMP INTERVAL OUTPUT Figure 7 - Electrical Diagram, 115 VAC Figure 8 - TB2, 1 VAC Figure 9 - TB2, 2 VAC Figure 1 - TB2, 23 VAC NOTE: Do not convert the Time Interval Control from one voltage to another Order the appropriate unit for the input voltage available ISSUED 12/76 SUPERSEDES USA

13 CORPORATION /Amherst, Ohio 441 TECHNICAL PUB1 /CATION!i Figure 11 - CT-8 Control Cabinet Fig 11 Key Part No Description Req d Timer, CT-8, 1 VAC Ref Timer, CT-8, 115 VAC Ref Timer, CT-8, 2 VAC Ref i Timer, CT-8, 23 VAC Ref Switch, Toggle Lamp, Indicator (Unit On) Fuse, 1 Amp, Slow Blow Potentiometer w/jiumper, Locking Lamp, Indicator (Output) 2 6 Cabinet, CT Nameplate, CT I Latch, Cabinet Screw w/nylok, l/4-28 x 5/ Nut, Dress 1 USA ISSUED 12/76

14 CORPORATION /Amherst Ohio 441 TECHNICAL PLIBLICATION 1: I \ 8 12,13 Figure 12 - CT-8 Control Cabinet (Inside) Fig 12 Key Part No Description Req d Timer, CT-8, 1 VAC Ref Timer, CT-8, 115 VAC Ref Timer, CT-8, 2 VAC Ref Timer, CT-8, 23 VAC Ref Post, Fuse Potentiometer w/jumper Tag, Wiring Instruction Lamp, Indicator (Unit On) Lamp, Indicator (Output) Nut, Hex, Brass, lo , Lockwasher, Split, #lo Panel w/hardware 1 8 Panel, Enclosure Screw, Pan Hd, 6-32 x 5/l Screw, Pan Hd, 6-32 x 3/l Lockwasher, # Strip, Marker, 12 Station Tag, Wiring 1 U S A

15 Nordson CORPORATION /Amherst, Ohio 441 TECHNICAl PUBLICATION PARTS LIST, (Continued) Fig 12 Key Part No Description Req d Spacer, Stand-Off , o Screw, Pan Hd, lo-24 x 3/ c Lockwasher, #lo e Transformer w/harness 1 15 Harness, Wire Capacitor, Filter I I Clip, Component Guide, Card I iircuit Board CT Fuse, Amp, 25 VAC 1 SO : iransistor w/heat Sink 1 Transistor, RCA or Motorola #2N Screw Pan Hd 8-32 x l/ I Lockwbsher, # Gasket, Cabi net 35 Ft RECOMMENDED SPARE PARTS LIST Fig/Key Part No Description Qty 1 l/ Lamp, Indicator (Unit On) 1 11/ Lamp, Indicator (Output) 1 1 l/ Fuse, 1 Amp, Slow Blow 2 12/ Potentiometer 1 12/ Circuit Board, CT / Fuse, 2-l/2 Amps, 25 VAC 2 12/ Transistor, RCA or Motorola #2N Lamp, Photocell Lig,ht Source, GE # Phototransistor 1 SUPPLEMENTAL PARTS LIST The CT-8 Timer is designed to be triggered by a photocell/light source Part No Description Req d Light Source, Photocell I Lamp, G E # Receiver, Phototransistor Phototransistor 1 LlTtlO USA ISSUED U/81 SUPERSEDES 7/77 LOPYRIG 1977 NORDSON

Time Interval Control

Time Interval Control Model CT-6 Part 4 495A NORDSON CORPORATION. AMHERST, OHIO. USA Corporation welcomes requests for information, comments and inquiries about its products. Address all correspondence