Công nghệ SMT máy DEK cung cấp và phân phối điện power supply and distribution

Công nghệ SMT máy DEK cung cấp và phân phối điện power supply and distribution POWER SUPPLY AND DISTRIBUTION OVERVIEW ELECTRICAL SCHEMATIC M37 POWER SUPPLY ENCLOSURE Safety System Components PSU Monitor Board Circuit Breakers M37 Rear Panel

CHAPTER 5 POWER SUPPLY AND DISTRIBUTION

OVERVIEW

Figure 5-1 Sliding Glass Cover Design

A

6

View on Arrow A

5

5

4

3

2 1

Figure 5-2 SGC iX Cover Design

6

5

4

3

3

2 1

Figure 5-3 Metal Covers Design

4 Mains Isolator Switch

6

7

5

4 3 2 1

Mains input power (100V to 240V) to the machine is routed to the mains isolator switch at the front of the machine From the mains isolator it is fed to the M37 power supply crate, through the cable gland at the rear panel, to the three terminal blocks TB1 (live), TB2 (neutral) and TB3 (earth) From the terminal blocks mains power is supplied to the following:

• M37SK31 PC Supply

• M37SK32 Monitor Supply

• M37SK33 Spare

• M37SK34 Spare

• M37SK35 Internal Vac Pump via Mains Filter and CB34

• PSU 1

• PSU 2 PSU 1 is a 350W high range input Switched Mode Power Supply Unit (SMPSU) which converts the ac into the following dc supplies:

• +24V US

• +24V SW

• +5.5V

• +12V

• -12V PSU 2 is a 600W high range input Switched Mode Power Supply Unit (SMPSU) which converts the ac into dc The PSU 2 fitted is one of two types, one supplies +42V dc, the other supplies +48V dc

The dc supplies from both PSU 1 and PSU 2 are fed to the power distribution PCB Mounted on the power distribution PCB is the PSU monitor board which enables monitoring of the power supplies

An E Stop loop, front cover interlock, rear cover interlock/interlock blanking plug and E Stop relay are fitted to ensure motor power is removed if the front printhead cover or rear cover is opened or the machine is crash stopped by pressing an E Stop button

A two handed safety relay, left jog button and right jog button are fitted to enable certain functions to be performed with the front printhead cover open

The M37 power supply crate has mains power available; when access to the components of the enclosure is required, observe the following warning:

WARNING LETHAL VOLTAGE DANGEROUS VOLTAGES EXIST IN THIS EQUIPMENT

ENSURE ALL ELECTRONIC COVERS AND MAIN MACHINE COVERS ARE FITTED BEFORE OPERATING THIS EQUIPMENT.

ELECTRICAL SCHEMATIC

ELECTRICAL SCHEMATIC

M37SK31 PC Supply M37SK32

PIHZ X1 RL2

E Stop Relay PNOZ X2

Part CON1 Part CON2

Part CON3

Rear Cover Interlock - Interlock Blanking Plug

Camera X I/O Node 8 Servo Motor Power

Print Carriage I/O Node 7 Servo Motor Power

M37 POWER SUPPLY ENCLOSURE

Figure 5-4 M37 Power Supply Enclosure Layout - Plan View

10 Terminal Block TB2

1

2

3

4 5

6 7 8 9 10 11 12 13 14

15 16

17

19 18

M37 POWER SUPPLY ENCLOSURE

Safety System

Components

The safety circuit comprises the following:

• The E Stop Relay

• The Two-Handed Relay

• System Switch

• Front Cover Interlock Switch

• Rear Cover Interlock/Interlock Blanking Plug

• E Stop Loop Circuit

• E Stop Blanking Plug

• Jog Buttons

Figure 5-5 Simplified Safety Circuit

CON 1 AUX

CON 2 CON 3 Sys Switch AUX AUX

E Stop Relay

0V

E Stop Loop and

E Stop Blanking Plug

E Stop Loop Supply (Software E Stop)

Contactors

1, 2 & 3 Supplies 24V SW and 42V dc or 48V dc to the motors

Front Cover Interlock CB1

3.15A 24V US

2 Handed Relay

0V

Contactors

1 & 3

Jog

Buttons

Supplies 24V SW to the motors

Rear Cover Interlock/

Interlock Blanking Plug

Figure 5-6 Machine Safety Circuit

Reset Control

E

E

E

Front Cover Interlock

A1 A2

3 5

4 6

A1 A2

3 5

4 6

A1 A2

3 5

4 6

M37 POWER SUPPLY ENCLOSURE

E Stop Loop

WARNING

E STOP CIRCUIT THE E STOP CIRCUIT FITTED TO THE MACHINE ONLY ISOLATES THE 24V AND 42V SUPPLIES TO THE MAIN CONTACTORS LETHAL VOLTAGES ARE STILL PRESENT WITHIN THE MACHINE AFTER THE E STOP HAS BEEN ACTIVATED.

The emergency stop loop consists of a series circuit connecting the E Stop blanking plug, the E Stop button, the front cover interlock and the rear cover interlock/interlock blanking plug The E Stop loop supply (software E Stop) from the NextMove interface card passes through the E Stop loop to the solenoid of the E Stop relay Once energised the E Stop relay feeds 24V US from PSU 1

to the solenoids of contactors Con 1, Con 2 and Con 3 Once energised contactor Con 1 feeds 24V SW via contactor Con 3 to provide stepper motor drive Contactor Con 2 feeds +42V dc or +48V dc from PSU 2 via contactor Con 3 to provide servo motor power

If any component in the loop becomes open circuit or if the E Stop loop supply drops to 0V, the E Stop relay PNOZ X2 de-energises Contactors Con 1, Con

2 and Con 3 de-energise, this ensures the immediate shut down of all motors

On E Stop activation, the machine monitor displays the Restore Power window The recovery method is to remove the E Stop condition and press the System

button

The M37 power supply enclosure has been designed to be machine generic, because of this, blanking plugs are fitted where interlocks are not required Two-Handed Relay With the front printhead cover open the machine sees this as an E Stop

condition and motor power is not available The two-handed relay enables functions such as priming paper and priming solvent to be carried out with the front printhead cover open The operator selects the required function on the MMI prior to opening the front printhead cover Once selected both jog buttons are used to perform the task

Provided the two jog buttons are pressed within 0.5 seconds of each other, the two-handed safety relay internal control circuit allows the safety relay contacts

to switch Contactors Con 1 and Con 3 activate to enable the 24V SW supply

As contactor Con 2 does not become energized, power is not available for servo motor drive

The 24V SW power is enabled whilst the jog buttons are held on The software, having being notified that a prime paper or prime solvent function has been selected, provides drive to the relevant circuit

System Switch Provided the E Stop loop is intact, the E Stop loop supply is at 24V and is

available at the E Stop relay solenoid System power is controlled by the system switch which is connected to the reset terminals of the E Stop relay control circuit Internal auxiliary contacts CON1, CON2 and CON3 are wired in series with the system switches, this allows the E Stop relay to monitor the contactors

to ensure that they have not welded shut

By pressing and releasing the system switch, the relay control circuit enables the activation of the 24V switching contacts and power is available to contactors Con 1, Con 2 and Con 3 Contactor Con 2, via contactor Con 3, enables system power to be available and this is signalled to the control enclosure with the switching on of Q1 With the 24V SW supply now available, the system lamp comes on and stays on even though the system switch has been released Contactor Con 2, via contactor Con 3, also enables the 42V dc or 48V dc servo motor supply

PSU Monitor

Board

The board monitors the voltages at circuit breakers CB1 to CB31 on the power distribution PCB and sends a data stream via the USB port M37SK30 to the machine PC

The voltages monitored and where used are as follows:

A separate application is used to display the voltage readings on the machine monitor, to access this window carry out the following:

1 Switch ON and initialise the machine.

2 On the keyboard, press the Windows key to access the taskbar.

PSU MONITOR BOARD

181507 ISSUE

+24V US NextMove Interface, MIU, Camera Lighting, Stepper Logic, Machine Fans, I/O

Node Power, Grid-Lok Tooling, High Throughput Conveyor (HTC), Euroflex and Servo Motor Logic.

+24V SW NextMove Interface, MIU, Belt Motors, I/O Node Power, Grid-Lok Tooling and

High Throughput Conveyor (HTC).

+5.5V NextMove ES, USB Hub +12V I/O Node Power, Grid-Lok Tooling and High Throughput Conveyor (HTC).

+42V/+48V Servo Motor Supply

M37 POWER SUPPLY ENCLOSURE

3 On the taskbar, select Start, Programs, DEK Power Monitor The

follow-ing window is displayed:

4 Clicking on the channel ID button, ie (CH01) 24V, opens a further informa-tion window, an example of which is shown below

Circuit Breakers

CCT Breaker Current Rating CCT Breaker Function

CB1 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 CB10 CB11 CB12 CB13 CB14 CB15 CB16 CB17 CB18 C 19 B CB20 CB21 CB22 CB23 CB24 CB25 CB26 CB27 CB28 CB29 CB30 CB31

Part View of Rear Panel

CB1 CB3 CB5 CB7 CB9 CB11 CB13 CB15 CB17 CB19 CB21 CB23 CB25 CB27 CB29 CB31

CB2 CB4 CB6 CB8 CB10 CB12 CB14 CB16 CB18 CB20 CB22 CB24 CB26 CB28 CB30

M37 POWER SUPPLY ENCLOSURE

CCT Breaker Current Rating CCT Breaker Function

CCT Breaker Current Rating CCT Breaker Function

10A Type C

10A Type C

16A Type C

Part View Of Front Panel

M37 Rear Panel

M37SK04 Machine I/O Node (Node 2) M37SK21 Camera X & Y Servo Motor Power (Linear) M37SK05 Print Carriage I/O Node (Node 3) M37SK22 Front Cover Interlock

M37SK06 Screen Cleaner I/O Node (Node 4) M37SK23 Interlock Blanking Plug

M37SK08 Paste Dispenser I/O Node (Node 10) M37SK25 Left and Right E Stop Buttons

M37SK17 Print Carriage Servo Motor Power

CB1 CB2 CB3 CB4 CB5 CB6 CB7 CB8 CB9 CB10 CB11 CB12 CB13 CB14 CB15 CB16 CB17 CB18 CB19 CB20 CB21 CB22 CB23 CB24 CB25 CB26 CB27 CB28 CB29 CB30 CB31

View on Rear Panel

VAC PUMP

M37SK02 M37SK35

M37SK16

M37SK17

M37SK18

M37SK19

M37SK20

M37SK21

MAINS OUT M37SK04

M37SK05

M37SK06

M37SK07

M37SK08

M37SK09

M37SK10

M37SK11

M37SK15

M37SK12

M37SK13

M37SK14

M37SK22

M37SK23

M37SK01

M37SK24

M37SK25

M37SK30 M37PL26

M37SK27

M37SK03

M37SK31

M37SK32

M37SK33

M37SK34

MAINS IN

M37 POWER SUPPLY ENCLOSURE

M37SK01

M37SK02

M37SK03

1 2

2 Way Trident

5 +24V US (NextMove I/F, MIU, Camera Lighting)

6 +24V US (NextMove I/F, MIU, Camera Lighting)

1 15

15 Way D Type Socket

Logic, Fans)

1 8

8 Way Power D Type Socket

M37SK04 to M37SK11

M37SK12 to M37SK14

M37SK15

1

4

6 Way Trident

1 3

3 Way Trident

1

1 Way Trident 2

7 4

10

M37 POWER SUPPLY ENCLOSURE

M37SK16 to M37SK21

M37SK22

M37SK23

1 5

5 Way Power D Type Socket

1 E Stop Loop Supply to Front Cover Interlock

3 0V from Front Cover Interlock

2 E Stop Loop Supply from Front Cover Interlock

4 0V to Front Cover Interlock

1 4

4 Way Trident

1 E Stop Loop Supply to Interlock Blanking Plug

2 E Stop Loop Supply from Interlock Blanking Plug

1 4

4 Way Trident

M37SK25

M37PL26

2 External E Stop Link to Pin 3 5 External E Stop Link from Pin 1

1

4

6 Way Trident

1

4

6 Way Trident

1

9

9 Way D Type Plug

M37 POWER SUPPLY ENCLOSURE

M37SK27

M37SK30

M37SK31 to M37SK35

8 Left Jog Button

1 15

15 Way D Type Socket

1

4 USB Type B Socket

1 2

AC Mains Socket 3