1. Engineer Training Electrical System Overview and Requirements

2. Engineer Training XL1500 Electric + PDU’s Confidential 2 Block Diagram

3. Engineer Training XL1500 Electric + PDU’s Confidential 3 PDU Latest Revision – Inside Look

4. Engineer Training XL1500 Electric + PDU’s Confidential 4 Upper PDU Components 1 2 3 4 Temp. controllers 1.IR Temp. controller 2.Heating table Temp. controller 3.Phase Contactors 55A 4.For the drivers For the IR Temp controllers adjustment procedure

5. Engineer Training XL1500 Electric + PDU’s Confidential 5 Mid Level – Inside Look Circuit breaker 3 phase, 63A Main Switch S1Lamps 220v Fuse holder

6. Engineer Training XL1500 Electric + PDU’s Confidential 6 Lower Level-PDU UPS rotary switch Circuit breakers 2*6A 7*10A 2*16A Main filter 3 Phases

7. Engineer Training XL1500 Electric + PDU’s Confidential 7 PDU – Main Safety Safety relay

8. Engineer Training XL1500 Electric + PDU’s Confidential 8 PDU – Main Safety  Phase R starts the following loops:  Phase RUPS K1  K1 is the Safety relay – Responsible for shutting down the motion system in case of emergency.  When the 24v loop is cut, emergency is active.

9. Engineer Training XL1500 Electric + PDU’s Confidential 9 Open Cabinet – Old Revision

10. Engineer Training XL1500 Electric + PDU’s Confidential 10 Upper PDU We have the following parts: 1.Temperature Display / Control for the Heating Table. 2.Heating Hood Row Selection / OFF Switch 3.Heating Hood Zone Selection Switch 1 2 3

11. Engineer Training XL1500 Electric + PDU’s Confidential 11 Mid Level PDU Heating Hood 3 Phase Magnetic Relay Here is where the computer turns on the heating. Power Pilot Lamps. (Right) Fuses for the Pilot Lamps (Left) Main Power Breaker Main Power Switch

12. Engineer Training XL1500 Electric + PDU’s Confidential 12 Lower Level PDU Main Power Filter Surge / Spike Suppressor Circuit Safety System Relay Heating Table Relay UPS / Main Selector Switch

13. Engineer Training XL1500 Electric + PDU’s Confidential 13 New PDU (UL Certified) – Last Revision New Safety Relay  New Safety relay K3 (the same relay type as used for activating the Drying System) for the drivers replaces the old problematic one.  The K3 relay has been moved to a new position, and the RL3 relay is installed into its place (see Figure 4). K3K3 RL 3

14. Engineer Training XL1500 Electric + PDU’s Confidential 14 Last PDU Revision (UL Certified)

15. Engineer Training XL1500 Electric + PDU’s Confidential 15 Last PDU Revision (UL Certified) (Cont.) New Main 3-phase Circuit Breaker  The main Circuit Breaker F1 (see green line) includes the Switch Tripped mechanism (terminals 9,10). The two phases are connected (see dashed green line) via the Emergency Switch.  When the Switch Tripped is powered, the F1 contacts are closed and the machine is connected to the power line.  When the Emergency Switch is pressed, the Switch Tripped will be powered off and the F1 contacts will be opened, (i.e. the machine will be disconnected from the power line).

16. Engineer Training XL1500 Electric + PDU’s Confidential 16 Last PDU Revision (UL Certified) (Cont.) New Emergency Stop Button The new PDU is equipped with its own Emergency Stop button When pressed, the RL3 relay will be activated and the electrical power will be disconnected before the Main 3-phase Circuit Breaker and from the UPS to the machine – see Figure (next slide).

17. Engineer Training XL1500 Electric + PDU’s Confidential 17 Main Safety – PDU To UPS

18. Engineer Training XL1500 Electric + PDU’s Confidential 18 Main Safety – PDU  The green dash line marks the circuit UPS  Emergency Switch  RL3 coil  UPS. When the Emergency Switch is pressed, this circuit is open.  The cyan dot line specifies the circuit UPS  RL3 contacts  Drivers  Left Cabinet (PC, Power Supplies)  UPS. When the Emergency Switch is pressed, this circuit is open.  The magenta dot line specifies the self-sustain loop for holding the RL3 powered in case of general electric failure (i.e. Switch Tripped is not powered and the green circuit is open).

19. Engineer Training XL1500 Electric + PDU’s Confidential 19 PDU with Heating Control Unit (External or Built-in)

20. Engineer Training XL1500 Electric + PDU’s Confidential 20 XL Premium – PDU

21. Engineer Training XL1500 Electric + PDU’s Confidential 21 XL Premium – PDU 1.XL Premium printing table has an Extra 5 heating table elements (Total of 10 heating elements). 2.Circuit breaker on the PDU is changed from 16A to 20A in order to support it. 3.Controlling the heating tables is from the Printing table heating controller (F5 circuit breaker on the PDU) 4.Once the heating table gives signals that the current temperature is lowered then the desired temperature, a 24v input signal will operate the SSR and the heating table will work.

22. Engineer Training XL1500 Electric + PDU’s Confidential 22 XL Premium – PDU 20A Circuit breaker