EPG Digiflow
Universal Control Unit
for Powder Sprayguns

06/99
Valid starting with serial
No. 300


Danger!

High voltage! Turn power off before servicing! Read rules for safe operation and instructions carefully!


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  Operating Manual  

Table of contents

EPG Digiflow
1. Introduction
1.1 Safety Regulations
1.2 General Safety Rules
2. Preparing the EPG Digiflow for its initial use
2.1 Configure the EPG Digiflow according to your own requirements
2.1.1 This is how the EPG Digiflow is configured as a stand alone unit
2.1.2 This is how the EPG Digiflow is configured as a control unit of an ECOTECH system
2.1.3 How to deactivate the proximity shut-off with Corona sprayguns
2.1.4 This is how the automatic maximum high voltage change-over is deactivated
2.1.5 This is how the EPG Digiflow is remotely controlled (only for stand alone units)
2.1.6 How to recall the settings for coating 2 from an external control unit
2.2 Connecting the EPG Digiflow to your powder coating system
2.2.1 This is how the EPG Digiflow is connected to manual sprayguns
2.2.2 This is how the EPG Digiflow is connected to automatic sprayguns
2.3 Grounding the EPG Digiflow
2.3.1 If the EPG Digiflow is operated within Zone 11
3. The EPG Digiflow is now ready for operation
3.1 This is how the EPG Digiflow is switched on and off
3.2 Corona or Tribo?
3.3 This is how the fluid air is set
3.4 This is how the atomizing air or Tribo air is set
3.5 How to set the dosage air and the feeding air as well as the total air volume
3.5.1 Settings in "Total" mode
3.5.2 Settings in mode "Dosage air"
3.5.3 Standard values for total air and feeding air
3.6 This is how you set the high voltage for Corona operation
3.6.1 Standard values for high voltage
3.7 What is Corona current limitation?
3.7.1 This is how you set the Corona current limitation
3.8 Automatic switch-off on contact with a workpiece
3.9 This is how you flush the powder hose and spraygun
3.10 Anti-Surge – minimizing the gush which occurs on switching on
3.11 How to optimize the powder cloud for your coating
3.11.1 Set standard coating
3.11.2 This is how you set the values for a second coating
4. Trouble shooting
5. Supplement
5.1 Part numbers
5.2 Specification
5.3 Applicable Safety Regulations and List of Sources
5.4 Warranty


EPG Digiflow

1 Button "Standby"   18 LED "feeding air"
2 LED "Standby"   19 Button "dosage air" or "total"
3 Button "high voltage"   20 LED "dosage air" or "total"
4 LED "high voltage"   21 Display "feeding air"
5 High voltage scale   22 Display "dosage air" or "total"
6 Display "high voltage"   23 Button "reduce"
7 LED "fault"   24 Button "increase"
8 Button "current"   25 LED "dosage air"
9 LED "current"   26 LED "total"
10 LED "Corona current scale"   27 LED "purge / spülen"
11 Corona current scale   28 LED "anti-surge"
12 LED "Tribo current scale"   29 LED "air no. 3"
13 Display "current"   30 LED "air no. 4"
14 Tribo current scale   41 compressed air regulator "air no. 3"
15 Button "coating 2"   42 pressure gauge "air no. 3"
16 LED "coating 2"   43 compressed air regulator "air no. 4"
17 Button "feeding air"   44 pressure gauge "air no. 4"

The control unit EPG Digiflow can be used as stand alone equipment in manual powder coating systems or in combination with other equipment in the ECOTECH Automatic Control System. The following sprayguns can be connected to this control unit :

Manual spraygun

Automatic spraygun

PEM-C1, PEM-C2, MCG-S1

PEA-C1, PEA-C2, PEA-C2A, ACG-S1

PEM-CG1, PEM-CG2

PEA-M1, PEA-M2

PEM-M2

PEA-T1

PEM-T1

PER-C1

For the EPG Digiflow, the high voltage necessary for powder coating is created in the spraygun. Further, all air flows are regulated with this device:

  • for adjusting the powder output
  • for adjusting the shape of the powder cloud

The control unit EPG Digiflow provides numerous additional functions, which guarantee optimum operation under a wide range of working-conditions. For protection against sparking and overheating an adjustable current limitation is provided.


1. Introduction

This technical manual contains information and hints for the service, repair and maintenance of the equipment. The observation of this manual is element of the warranty agreements.

Wagner powder systems are designed to meet the most stringent safety requirements. They can be operated in compliance with generally applicable safety codes and applicable national safety regulations.

Please pay particular attention to the parts marked by the following symbols. Follow the instructions exactly, in the interests of both your own safety and the correct functioning of the unit.


"Warning"

This symbol draws attention to the fact that if the operating instructions, working instructions, prescribed working sequences etc. are not followed exactly, this can lead to injury or even fatal accidents.


"Caution"

This warning indicates that if the operating instructions, working instructions, prescribed working sequences etc. are not followed exactly, this can lead to damage to the unit.


"Hint"

This symbol draws your attention to useful additional information and tips.

Wagner hereby declares that the unit described in these operating instructions has been designed and manufactured according to the provisions of EU Directive 89/392/EEC.

The following European standards have been applied:

EN 50014
EN 50117
EN 50050
EN 50053
EN 50081
EN 50082

The following German standards or guidelines have been applied:

ZH 1/443
VDE 0839
VDMA 2371 Part 1
ZH 1/444
VDE 0165


1.1 Safety Regulations


Warning

This equipment can be dangerous if it is not operated in accordance with this operating manual! There might be additional regulations to be observed, put into effect by governmental, state or other official agencies or local security (fire) departments.

The following rules must be observed in order to ensure a safe and efficient use of the equipment:

· Under no circumstance may persons with a cardiac pacemaker come close to the area between the tip of the spraygun and the workpiece to be coated.

The user has to observe particularly the safety guidelines of the VdS or the local professional and security institutions.2) 3) 6) 15)

The user has to ensure that the medium value of the powder/air concentration does not exceed 50% of the LEL u ) (maximum allowed concentration of powder in air). If the LEL is not known, the user should assume a value of 20 g/m³.2) 3) 6)

The main power connection for operation of the Wagner powder equipment must be electrically interlocked with the exhaust system of the powder coating booth. 2) 3) 6)

In the event of faults or defects, repair work is to be performed at the user's discretion. 7)

Repairs may only be carried out by specially trained personnel. 7)

Repairs must never be performed in an explosion-hazard area. 7)

The work area must have an electrostatically conductive floor (measured in accordance with DIN 51953). 2) 3) 6)

All conductive parts in the work area must be electrostatically grounded (work area = 1.5 m at the sides, 2.5 m to the front and rear of every spray location or opening in the booth). 3)

All persons inside the work area must wear electrostatically conductive footwear. 2) 3)

If gloves are used, they must be of antistatic material or have cut-out palm areas. 2) 3)

x) See paragraph 5.3. "Applicable Safety Regulations and List of Sources"


1.2 General Safety Rules

Keep your workplace well organized
A disorganized workplace creates a hazard.

Store your tools carefully
Unused tools should be stored in a dry, locked room and out of the reach of unauthorized persons.

Wear suitable work clothing

Use breathing protection for work which produces powder.

Take good care of the system
Keep the system clean to ensure that it works well and safely. Check the plug and line cord regularly and have them replaced by customer service if damaged. Check the extension cord regularly and replace it when damaged.

Always remain alert
Watch your work. Proceed in a reasonable manner. Do not use tools when you lack concentration.

Check your equipment for damage
Before using the system, carefully inspect slightly worn parts for proper operation. Check whether the moving parts operate properly, whether they jam and whether parts are damaged.

All parts must be properly assembled in order to ensure proper operation of the unit. Damaged parts should be repaired or replaced by a Wagner customer service


Warning

For your own safety, use only accessories and equipment listed in the operating manual. The use of individual parts other than those recommended in the operating manual may create a hazard to personal safety.

Use only original Wagner replacement parts!

HAZARD

PREVENTION

Electrostatic arcing may cause an
explosion or fire. Mixtures of powder
and air can explode or ignite causing property damage and/or severe injury.

Operator must be grounded. Grounding straps must be used when wearing rubber soled shoes.

Operator must be in contact with the spraygun handle; cut out palm section and trigger fingers of any work gloves to be used.

Operator must remove all metal objects from his or her person, which are not grounded.

The object being sprayed must be grounded.

All metal objects within the spray area must be grounded (including spray booth, part hangers, fire extinguishers, etc.)

Grounded conductive floor must be provided in spray area.

Turn off the Power Pack and unplug from outlet before flushing out the gun, cleaning or replacing parts on the gun such as changing tips.

Explosion or fire. Mixtures of powder
and air can explode or ignite causing property damage and/or severe injury.

Exhaust and fresh air introduction must be provided to keep the air within the spray area free of accumulation of flammable atmosphere.

Smoking must not be allowed in spray area.

Fire extinguishing equipment must be present and in working order.

Electrostatic arcing must be prevented. (See Electrostatic arcing)

When cleaning the system, use only materials recommended by the coatings manufacturer. Be sure Power Pack is turned off and unplugged.

Avoid all ignition sources such as static electricity sparks, open flames such as pilot lights, hot objects such as cigarettes and sparks from connecting and disconnecting power cords and working light switches.

To prevent hazardous concentrations of flammable atmospheres, spray only in a properly ventilated spray booth.

Never operate spraygun unless ventilation fans are operating properly.

Check and follow all National, State and Local codes regarding air exhaust velocity requirements.

Ventilation must be maintained during the cleaning operation.

Toxic Substances: Some materials
may be harmful if swallowed or come
in contact with the skin.

Follow the requirements of the Material Safety Data Sheet supplied by the coatings manufacturer.

Exhaust and fresh air introduction must be provided within the spray area to keep the air free of high powder accumulations.

Wear a mask or respirator. Read all instructions for the mask to insure that it will provide the necessary protection against the inhalation of powder.

General

Read all instructions and safety precautions before operating.

Comply with all appropriate local, state and national codes governing ventilation, fire prevention, and operation of Electrostatic equipment usage.

The United States Government Safety Standards have been adopted under the Occupational Safety and Health Act. These standards, particularly the General Standards, Part 1910 and the Construction Standard, Part 1926, should be consulted.

NFPA Standard No. 33 is to be followed when setting up your spray area. Contact the National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts, 02269 for more information.

Check with insurance company for additional requirements.

Use only identical replacement parts.

Personnel must be given training in accordance with the requirements of NFPA Standard No. 33 chapter 15.

It is the duty of all personnel responsible for the spray equipment operation and maintenance to read and understand all safety information furnished with this equipment.


2. Preparing the EPG Digiflow for its initial use

2.1 Configure the EPG Digiflow according to your own requirements

The EPG Digiflow can be used with various Wagner powder sprayguns. It can be configured for the desired spraygun with the DIP switches at the rear side of the unit. By default, the EPG Digiflow is configured as stand alone unit according to configuration 1 (see next paragraph).

Here is a summary of the different possibilities for configuring:

Gun type

Configuration
Stand alone systems

Configuration
ECOTECH Systems

Manual guns

PEM-C1, -PEM-C2, MCG-S1
PEM-CG1, PEM-CG2
PEM-M2
PEM-T1

 

1
1
1
1

 

A, B
A, B
A, B

 

3
3
3
3

 

A, B
A, B
A, B

Automatic guns

PEA-C1, PEA-C2, PEA-C2A
PEA-M1, -M2
ACG-S1, PER-C1
PEA-T1

 

1
1
1
2

 

A, B, C
A, B, C
A, B, C
C

 

3
3
3
4

 

A, B, D
A, B, D
A, B, D


2.1.1 This is how the EPG Digiflow is configured as a stand alone unit

Config. 1

for guns:

Config. 2

for gun:


(Standard)

PEM-C1, PEM-C2 PEA-T1
PEM-CG1, PEM-CG2  
PEM-M2, MCG-S1  
PEA-C1, PEA-C2, PEA-C2A  
PEA-M1, PEA-M2  
PER-C1, ACG-S1  
PEM-T1  

2.1.2 This is how the EPG Digiflow is configured as a control unit of an ECOTECH system

Config. 3

for guns:

Config. 4

for gun:

(Standard)

 

PEM-C1, PEM-C2 PEA-T1
PEM-CG1, PEM-CG2  
PEA-C1, PEA-C2  
PEA-M1, PEA-M2  
PEM-M2  
PEA-C2A  
PER-C1  
ACG-S1  
PEM-T1  

2.1.3 How to deactivate the proximity shut-off with Corona sprayguns

The sprayguns listed in the following are set by default with an active proximity shut-off. If you should require to deactivate them, switch the DIP switch no. 4 to the "ON" position.

Config. A for guns:
PEM-C1, PEM-C2
PEM-CG1, PEM-CG2
PEM-M2
PEA-C1, PEA-C2
PEA-M1, PEA-M2

2.1.4 This is how the automatic maximum high voltage change-over is deactivated

The EPG Digiflow is supplied by the manufacturer with an automatic change-over of the maximum high voltage between 80 and 100 kV. This may be switched off by switching DIP switch no. 5 to the "ON" position.

Config. B

 

The maximum high voltage is set to 80 kV.

2.1.5 This is how the EPG Digiflow is remotely controlled (only for stand alone units)

Config. C

for gun:

PEA-C1, PEA-C2 Diese Einstellung bietet die Möglichkeit, die Hochspannungs- und/oder Pulverfreigabe für eine Automatiksprühpistole mit einem einzelnen Steuergerät durch einen externen, potentialfreien Relaiskontakt fernzusteuern (Steuerspannung).
PEA-M1, PEA-M2
PEA-T1

Cable connector CCM socket
Part Nr. 9952 591  


2.1.6 How to recall the settings for coating 2 from an external control unit

Config. D

 

This configuration allows you to recall the settings for the second coating from an external control unit.

For this, a 24 V DC supply with GND connected to earth is required (see following diagram)

 

Cable connector CCM socket
Part Nr. 9952 591  


Hint

If the settings for coating 2 are recalled from an external control unit, you can switch back to coating 1 only from the same external unit (key 15 of the EPG Digiflow will not be enabled).


2.2 Connecting the EPG Digiflow to your powder coating system

2.2.1 This is how the EPG Digiflow is connected to manual sprayguns


Warning

Any warranty claim vanishes if warranty label (M) is damaged!


2.2.2 This is how the EPG Digiflow is connected to automatic sprayguns


Warning

A Polyamid (Ø8±0,1) or Polyurethan (Ø8±0,15) pneumatic hose must be used to fit the compressed air supply to connection N (air no. 4).

A reduction device (part no. 9998 137) must be fitted to connection N (air no. 4) of the control unit on connecting up the Tribo air supply!


Warning

Any warranty claim vanishes if warranty label (M) is damaged!


2.3 Grounding the EPG Digiflow

In order to achieve a good powder coating and for security reasons the control unit must be properly grounded. The use of a min. 4 mm2 copper cable with sufficient mechanical strength is recommended for the connection to the system ground.

  • A poorly grounded workpiece causes:
  • very bad wrap-around
  • uneven coating
  • back-spray onto spraygun and user
  • dangerous electric charging of the workpiece


Warning

Sparks between workpiece and conveyor hooks (hangers) can occur if hooks or other hanger parts are not completely cleaned! These sparks can cause heavy radio frequency interferences.

Preconditions for good grounding as well as coating are:

  • Good grounding of the workpiece to be coated, of conveyors and hangers.
  • Grounding of the powder spray booth and the transport and mounting equipment with the installation of a 16 mm2 copper conductor to system ground.
  • Regular cleaning of hangers from powder deposits.
  • The grounding resistance of the workpiece must not exceed 1 MW (Mega Ohm).

2.3.1 If the EPG Digiflow is operated within Zone 11


Warning

When used inside the zone 11 the control unit may only be operated with the mounted protection cover (A).

In several countries there are country-specific regulations, according to which the control unit must be installed outside the dust explosion-hazard zone (Zone 11 according to ZH 1/443 and ZH 1/444). With the safety device (A) mounted to the control unit it is allowed to install the equipment inside zone 11 according to the certificate PTB No. Ex-92.C.9102 (see appendix).

Part Nr. 0265 902

This is how the safety device is fitted to the EPG Digiflow:

For use inside the zone 11 connect a grounding cable (H) from the cover terminal (J) to the grounding screw (K). Mount the cover terminal (J) with the fastening screws (L) at the housing back plate (M) of the control unit .


Caution

High ambient temperatures must be avoided; in particular, the hoses must not be routed through factory areas exposed to direct sunlight !


3. The EPG Digiflow is now ready for operation

3.1 This is how the EPG Digiflow is switched on and off


Hint

Do not forget to configure the EPG for your type of spraygun, according to paragraph 2.1.

Switch the main switch on the rear side of the unit upwards to position "I" in order to switch the unit’s power supply on.

  • The EPG is ready for operation in a few seconds.
  • In order to switch the EPG to standby mode, activate the ON/OFF key 1 on the operating side.


3.2 Corona or Tribo?

Before you start, make sure that the EPG Digiflow is correctly configured for the spraygun you are going to use. You can switch from Corona to Tribo mode and back to Corona by simultaneously pressing key 3 and 8. According to the mode you have chosen, LED 10 or 12 will light up.


3.3 This is how the fluid air is set

Proceed as follows:

  1. Press buttons 3 and 19 simultaneously for at least 5 seconds in order to reach setup operating mode.
    · If you do not activate any key for longer than 20 seconds, setup mode will be left automatically.
  2. Press buttons 3 and 19 three times simultaneously. LED 30 "air no. 4" illuminates.
  3. The following settings can be made with keys 23 and 24:
    · 0 = the air output is always switched off.
    · 1 = the air output is always switched on.
    · A = the air output is automatically switched on and off via the powder release
  1. Press buttons 3 and 19 simultaneously to save the setting and to leave setup mode.
  2. In setting A, LED "air no. 4" illuminates only if powder release takes place, that is, if you press the trigger on a manual spraygun
  3. Then set the fluid air with rotary knob "air no. 4" as required.

3.4 This is how the atomizing air or Tribo air is set

Proceed as follows to make the setting:

  1. Press buttons 3 and 19 simultaneously for at least 5 seconds in order to reach setup mode.
  2. Press buttons 3 and 19 twice simultaneously. LED 29 "air no. 3" illuminates.
  3. You can make the following settings with buttons 23 and 24:
    · 0 = the air output is always switched off
    · 1 = the air output is always switched on
    · A = the air output is automatically switched on and off via the powder release
  4. Press buttons 3 and 19 twice simultaneously to save the setting and to leave setup mode.
  5. In setting A, LED "air no. 3" illuminates only if powder release takes place, that is, if you press the trigger on a manual spraygun.
  6. Then set the Tribo or atomizing air with rotary knob "air no. 3" as required.

3.5 How to set the dosage air and the feeding air as well as the total air volume

3.5.1 Settings in "Total" mode

In this mode you can alter the volume of feeding air and the total air volume. The dosage air results automatically from the difference between the two air flows.

Proceed as follows:

  1. Press buttons 17 and 19 simultaneously to change to mode "total".
  2. You can now read on displays 21 and 22 the set values for the feeding air or total air volume.
  3. Set the feeding air with buttons 23 and 24.
  4. Press button 19 in order to change from feeding air to total air and buttons 23 and 24, to set the desired values.

3.5.2 Settings in mode "Dosage air"

In this mode you can change the volume of the feeding air and the volume of the dosage air independently of each other. The total volume of air then results automatically from the total of the two air flows.

Proceed as follows:

  1. Press buttons 17 and 19 simultaneously, in order to change to "Dosage air" mode:
    On displays 21 and 22 you can now read the set values for the volume of feeding air or the volume of dosage air.
  2. You can now set the feeding air with buttons 23 and 24.
  3. Press button 19, in order to change from feeding air to dosage air and buttons 23 and 24, to set the desired values.

3.5.3 Standard values for total air and feeding air

  • Total air:
    a value of 4.5 results in a good average value for the powder flow.
  • feeding air:
    a value of 2 results in a powder output of about 150 g/min, depending on powder, hose, type of spraygun etc.

3.6 This is how you set the high voltage for Corona operation

The high voltage is set by default to the maximum of 100 kV. If this value does not meet your requirements, you can alter it as follows:

  1. Press high voltage button 3 "kV"
  2. Set the desired value with buttons 23 and 24.
    · The High Voltage can be set between 20 and 100 kV.
    · s You can read the set value on the high voltage scale and the two displays.
    · With value 100, the two displays are used as a single display with three places of digits.

3.6.1 Standard values for high voltage

You achieve a good degree of application with most types of powder with a standard value of 80 kV.


3.7 What is Corona current limitation?

When a gun approaches the workpiece, the Corona current increases while the high voltage is reduced correspondingly. With Corona current limitation, the Corona current can be held at a constant rate on further approaching the workpiece.

The high voltage will be held to the preset limiting value by the control unit. Limitation of the maximum Corona current can be set to a value between 40 and 160 m A (factory setting = 160 m A).

This function is particularly useful when using powder types which are very easy to charge or with short workpiece spacing. In such cases symptoms of over-charging (craters) can occur particularly in the area of edges.


3.7.1 This is how you set the Corona current limitation

Proceed as follows:

  1. Press button 8 "Current" in order to activate the setting mode for the current limitation.
    · LED 9, 10 and 13 light up.
    · If you wait longer than 10 seconds, setting mode will be deactivated again.
  2. Press buttons 23 and 24, to set the desired value.
    · The value will be shown on the light scale and in both displays.


3.8 Automatic switch-off on contact with a workpiece

The EPG Digiflow is factory-set for no automatic shut-off in case of workpiece contact. The enabling of the automatic shut-off feature and the adjustment of a certain shut-off distance depends on the gun type used and must therefore be enabled for every gun separately.

Proceed as follows:

  1. Turn the potentiometer (RT3) on the rear of the unit counter clockwise to the stop (best done with a size 1 to 2 screwdriver).
  1. Switch the unit off with button 1 so that the high voltage is switched off.
  1. Hold the manual or automatic spraygun at a distance of about 1 cm from the grounded workpiece. .
  1. Switch the unit on again with button 1.

    Press the trigger when using the manual spraygun (the current display is visually higher than the voltage display).
  1. Turn the potentiometer (RT3) on the rear side of the unit slowly clockwise until the high voltage switches off

    The automatic shut-off feature is now adjusted for automatic switch-off at approx. 1 cm distance.


Caution

If the current limitation is adjusted to another value, the shut-off feature must also be readjusted.


3.9 This is how you flush the powder hose and spraygun

In mode "purge" you can set whether and to what extent the powder hose and spraygun are to be freed of excess powder after the powder delivery has been switched off.

The intensity of flushing is shown on display 21 and the flushing time is given on display 22. The settings can be altered with buttons 23 and 24:

Display 1: setting range: 0 ... 95 % adjustment steps: 5 %
Display 2: setting range: 0 ... 10 s adjustment steps: 1 s

The settings are made as follows:

  1. Press buttons 3 and 19 simultaneously for at least 5 seconds in order to get into setup mode.
  2. Set the flushing time with buttons 23 and 24.
  3. Press button 17 in order to change to flushing intensity and then set this with buttons 23 and 24.
  4. Press buttons 3 and 19 simultaneously four times, to leave "purge" mode and setup mode at the same time.

3.10 Anti-Surge – minimizing the gush which occurs on switching on

On switching a powder system on, a gush of coating powder can occur if the powder hose has not been flushed out before the last switching off.

In order to prevent or minimize this, the EPG Digiflow has what is called an anti-surge function. The following values can be set.

Adjustment

Air

Value

Function

0

out

 

 

1

feeding air:

200 ms

Delayed switch-on

2

feeding air:

500 ms

Delayed switch-on

3

feeding air:

1000 ms

Delayed switch-on

4

feeding air:

1500 ms

Delayed switch-on

5

dosage air:

200 ms

Delayed switch-on

6

dosage air:

500 ms

Delayed switch-on

7

dosage air:

1000 ms

Delayed switch-on

8

dosage air:

1500 ms

Delayed switch-on

The gush build-up depends on various factors, such as the length and diameter of the powder hose, its filling, the properties of the powder etc. In order to find the suitable setting, it is advisable to test the individual steps.

For this you can proceed as follows:

  1. Activate setup mode by simultaneously pressing buttons 3 and 19 (for at least 5 seconds).
  2. Re-press the same buttons simultaneously. The "Anti-Surge" LED lights up.
  3. With buttons 23 and 24, you can now set the desired stage of the gush suppression.
  4. Press buttons 3 and 19 three times simultaneously, in order to leave "Setup Mode" again.

3.11 How to optimize the powder cloud for your coating

With the EPG Digiflow you have the opportunity of saving settings for two different coatings, for example, for two different workpieces or for standard and re-coating etc.

Before you begin making the settings, ensure that:

  • the current limitation is set according to paragraph 3.7.1 (Corona).
  • the automatic shut-off is set according to paragraph 3.8 (Corona).
  • the air flows "air no. 3" and "air no 4" are switched to active according to paragraphs 3.3 and 3.4


3.11.1 Set standard coating

  1. Hold the spraygun in the booth and switch the powder supply on.
    · You have to press the trigger with the manual spraygun.
  2. Switch the unit over to "total" mode (instructions for this in paragraph 3.5.1).
  3. Set the powder output (feeding air and total air) with buttons 23 and 24.
  1. Regulate the size of the cloud with rotary knob 41 (Corona).
  2. With Tribo operation, set a value from 1.2 to 2 µ A.


3.11.2 This is how you set the values for a second coating

In order to save a parameter record for alternative use, proceed as described in the following:

  1. Press button 15 to activate the program for the second coating .
    · LED 16 lights up.
  2. Set the powder cloud, the high voltage and the current limitation to meet your own requirements.
  3. Save the settings by pressing button 15 and thereby again leaving the program for the second coating.
    · LED 16 extinguishes.


Hint

Check on every change of job if you are going to operate the same type of spraygun with the EPG Digiflow.

If not, re-configure the EPG Digiflow according to paragraph 2.1 and 3.2.


4. Trouble shooting


Caution

Maintenance, repair or replacement of the powder spray unit or its components may only be performed by trained personnel in a suitable location outside the hazard area.

If there is a malfunction, first check whether the EPG Digiflow is correctly configured for the type of spraygun you are operating. Read instructions in paragraph 2.1. and 3.2 for this.

Malfunction

Cause

Remedy

Power indicator does not light up

- Mains power not turned on

- 1 AT slow blow fuses defective

- Turn on mains power

- Replace fuses

No Corona current reading

- High voltage generator is turned off

- The display is adjusted for Tribo current

- High voltage generator defective

- Turn on and adjust the high voltage

- Check configuration according to paragraph 2.1 and 3.2

- Inform Wagner service center

No tribo current reading

- Unsuitable powder

- The display is adjusted for Corona current

- No powder delivery to the spraygun.

- Break in interconnect cable to spraygun

- Use suitable powder

- Check configuration according to paragraph 2.1 and 3.2

- Check powder delivery


- Please inform Wagner customer services for replacement of the interconnect cable

No high voltage

- High voltage generator is turned off

- High voltage generator defective

- Turn on and adjust the high voltage

- Inform Wagner service center

Fault indicator lights up

- No spraygun is connected at the control unit

- Spraygun too close to workpiece (Wrong adjustment of the proximity shut-off)

- Break in interconnect cable to spraygun, that means no grounding between control unit and spraygun

- Connect spraygun


- New adjustment of the proximity shut-off (see paragraph 3.8.)


- Please inform Wagner customer services for replacement of the interconnect cable

No powder delivery
and / or no high voltage

- Unit is switched off

- High voltage generator defective

- powder delivery is blocked

- Switch the unit on

- Inform Wagner service center

- Clean hoses, injectors and all powder leading components or replace if necessary

No display showing flow
(display = zero)

- No air connection to the control unit

- Powder hose has a kink or is blocked

- Clean hoses, injectors and all powder leading components or replace if necessary


Caution

This equipment may only be used for the above described application !


5. Supplement

5.1 Part numbers

1. EPG Digiflow for ECOTECH:

  Standard Japan USA
Part-No. 0265 111 0265 111 0265 112

2. EPG Digiflow for manual powder coating systems:

  Standard Japan USA
Part-No. 0265 111 0265 113 0265 112

5.2 Specification

Dimensions:

Width: 270 mm

Height:

136 mm

Depth:

370 mm (with cover 420 mm)

Weight:

approx. 7 kg (with cover 7.8 kg)

Electrical:

Mains power: ( AC ) 85 VAC to 250 VAC

Frequency:

47 Hz to 440 Hz

Input power:

max. 40 W

EMI filter:

EN 55022 class B
VDE 0878 PT3 class B

Output voltage:

max. 22 Vpp

Output current:

max. 0.9 A

Corona current limitation:

40 to 160 µA (adjustable)

Protection class:

IP 64

Radio interference level:

FN

Display:

High voltage: 0 to 100 kV Resolution: 5 kV 1 kV

Corona current:

0 to 200 µA

Resolution:

10 µA

5 µA

Tribo current:

0 to 4 µA

Resolution:

0.2 µA

- -

Pneumatic:

Input air pressure: 6 ... 8 bar min. 6 bar  

Output air flows:

 

 

 

Feeding air volume:

0.1 ... 4.5 Nm3/h

Resolution:

0.1 Nm3/h

Dosage air volume:

0.1 ... 4.5 Nm3/h

Resolution:

0.1 Nm3/h

Atomizing air pressure:

0 ... 2.5 bar

Resolution:

0.1 bar

Fluid- Tribo air pressure:

0 ... 2.5 bar

Resolution:

0.1 bar

Compressed air quality acc. to ISO 8573.1:

Residual water content in compressed air: max. 1.3 g H2O/Nm3 at a dew point of 7 °C

Residual oil content in compressed air:

max. 0.01 mg oil/Nm3

Residual dust content in compressed air:

max. 1 mg dust/Nm3

Ambient conditions:

Working temperature: 5 to 45 °C

If low temperature powders are used the ambient temperature may have to be lower than 30 °C.


Hint

Volume measures
All volume indications (m3/h) are Nm3/h. (Norm cubic meters per hour). One cubic meter of a gas at 0 °C and 1.013 bar is called norm cubic meter.

1 Nm3/h = 35.3 ft3/h


5.3 Applicable Safety Regulations and List of Sources

1)

EN 50050
DIN VDE 0745
part 100

Electrical equipment for explosion-hazard areas

Electrostatic manual powder coating equipment

(published by
VDE-Verlag,
Berlin)

2)

EN 50053 - 2
DIN VDE 0745
part 102

Regulations for the selection, installation and use of electrostatic spraying equipment for inflammable sprays

(published by
VDE-Verlag,
Berlin)

3)

ZH 1/443 and
ZH 1/444

Electrostatic powder coating with manual powder coating equipment and fixed spraying equipment

(published by
C. Heymanns-Verlag,
Cologne)

4)

EX-RL / ZH 1/10

Guidelines for explosion protection

(published by
C. Heymanns-Verlag,
Cologne)

5)

VDE 0165

Installation of electrical equipment in explosion-hazard areas

(published by
VDE-Verlag,
Berlin)

 

EN 50014

Electrical equipment for explosion-hazard areas

(published by
VDE-Verlag,
Berlin)

6)

VDMA 24371
part 1

Guidelines for electrostatic coating using synthetic resin powders

(published by
Beuth-Verlag,
Berlin)

7)

ELEX V

Regulation for electrical systems in
explosion-hazard areas

(published by
VDE-Verlag,
Berlin)

8)

VDE 0100

VDE guidelines for the construction of
power converters with a nominal voltage up to
1000 V

(published by
VDE-Verlag,
Berlin)

9)

EN 60204 part 1
VDE 0113

VDE guidelines for the electrical equipment of machines

(published by
Beuth-Verlag,
Berlin)

10)

VDE 0147
part 1

Guidelines for the construction of stationary electrostatic spraying equipment

(published by
Beuth-Verlag,
Berlin)

11)

VDE 0105
part 1

Guidelines for the operation of high power converters

(published by
Beuth-Verlag,
Berlin)

12)

VDE 0105
part 4

Operation of high power converters (additional regulation for stationary electrostatic spraying equipment)

(published by
Beuth-Verlag,
Berlin)

13)

VDE 0132

Instructions for fire fighting in electric equipment and nearby

(published by
Beuth-Verlag,
Berlin)

14)

VDE 0134

Instructions for first aid in case of accident

(published by
Beuth-Verlag,
Berlin)

15)

VDS 2093

Association of insurance companies

(Riehlerstr. 36
50668 Cologne)

16)

EN 50081-1
DIN VDE 0839
part 81-1

Electro-magnetic compatibility

(EMV) generic standard interference emissions

(published by
VDE-Verlag,
Berlin)

17)

EN 50082-1
DIN VDE 0839
part 82-1

Electro-magnetic compatibility

(EMV) generic standard resistance to interference

(published by
VDE-Verlag,
Berlin)


5.4 Warranty

What is covered by this warranty:

Faulty parts are replaced according to our general delivery conditions.

Within the applicable warrant period, Wagner will repair or replace, defective parts without charge if such parts are returned with transportation charges prepaid to the nearest authorized service center. If Wagner is unable to repair this product so as to conform to this limited warranty after a reasonable number of attempts, Wagner will provide, either a replacement for this product or a full refund of the purchase price of this product.

These remedies are the sole and exclusive remedies available for breach of express and implied warranties.

What is not covered by this warranty:

This warranty does not cover any damage or defects:

  1. Caused by use or installation of repair or replacement parts or accessories not manufactured by Wagner,
  2. Caused by repair performed by anyone other than a Wagner authorized service center, or
  3. Caused by or related to abrasion, corrosion, abuse, misuse, negligence, accident, normal wear, faulty installation or tampering in a manner which impairs normal operation.

Limitation of remedies:

IN NO CASE SHALL WAGNER BE LIABLE FOR ANY INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS, INCLUDING TRANSPORTATION COSTS, WHETHER SUCH DAMAGES ARE BASED UPON A BREACH OF EXPRESS OR IMPLIED WARRANTIES, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT, OR ANY OTHER LEGAL THEORY.

Disclaimer of implied warranties:

THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

No ability to transfer:

This warranty is extended to the original purchaser only and is not transferable.

Your rights under state law:

Some states do not allow limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.