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| 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 :
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Manual spraygun |
Automatic spraygun |
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PEM-C1, PEM-C2, MCG-S1 |
PEA-C1, PEA-C2, PEA-C2A, ACG-S1 |
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PEM-CG1, PEM-CG2 |
PEA-M1, PEA-M2 |
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PEM-M2 |
PEA-T1 |
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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:
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.
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.
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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. |
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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. |
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This symbol draws your attention to useful additional information and tips. |
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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:
The following German standards or guidelines have been applied:
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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: |
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· 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"
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Keep your workplace well organized Store your tools carefully Wear suitable work clothing Use breathing protection for work which produces powder. Take good care of the system |
Always remain alert Check your equipment for damage |
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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! |
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HAZARD |
PREVENTION |
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Electrostatic arcing may cause an
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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. |
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Explosion or fire. Mixtures of powder |
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. |
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Toxic Substances: Some materials |
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. |
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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. |
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 |
Configuration |
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Manual guns PEM-C1, -PEM-C2, MCG-S1 |
1 |
A, B |
3 |
A, B |
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Automatic guns PEA-C1, PEA-C2, PEA-C2A |
1 |
A, B, C |
3 |
A, B, D |
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Config. 1 |
for guns: |
Config. 2 |
for gun: |
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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 |
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Config. 3 |
for guns: |
Config. 4 |
for gun: |
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(Standard)
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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 |
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: |
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PEM-C1, PEM-C2 |
| PEM-CG1, PEM-CG2 | |
| PEM-M2 | |
| PEA-C1, PEA-C2 | |
| PEA-M1, PEA-M2 |
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.
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Config. B |
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The maximum high voltage is set to 80 kV. |
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Config. C |
for gun: |
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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 |
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| Part Nr. 9952 591 |
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Config. D |
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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 |
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| Part Nr. 9952 591 |
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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). |
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Any warranty claim vanishes if warranty label (M) is damaged! |
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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! |
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Any warranty claim vanishes if warranty label (M) is damaged! |
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.
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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:
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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:
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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 . |
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High ambient temperatures must be avoided; in particular, the hoses must not be routed through factory areas exposed to direct sunlight ! |
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Do not forget to configure the EPG for your type of spraygun, according to paragraph 2.1. |
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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.
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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.
Proceed as follows:
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Proceed as follows to make the setting:
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:
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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:
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:
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You achieve a good degree of application with most types of powder with a standard value of 80 kV.
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.
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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. |
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Proceed as follows:
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:
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If the current limitation is adjusted to another value, the shut-off feature must also be readjusted. |
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:
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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.
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Adjustment |
Air |
Value |
Function |
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0 |
out |
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1 |
feeding air: |
200 ms |
Delayed switch-on |
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2 |
feeding air: |
500 ms |
Delayed switch-on |
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3 |
feeding air: |
1000 ms |
Delayed switch-on |
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4 |
feeding air: |
1500 ms |
Delayed switch-on |
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5 |
dosage air: |
200 ms |
Delayed switch-on |
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6 |
dosage air: |
500 ms |
Delayed switch-on |
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7 |
dosage air: |
1000 ms |
Delayed switch-on |
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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:
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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:
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In order to save a parameter record for alternative use, proceed as described in the following:
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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. |
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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. |
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Malfunction |
Cause |
Remedy |
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Power indicator does not light up |
- Mains power not turned on - 1 AT slow blow fuses defective |
- Turn on mains power - Replace fuses |
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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 |
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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
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No high voltage |
- High voltage generator is turned off - High voltage generator defective |
- Turn on and adjust the high voltage - Inform Wagner service center |
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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
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No powder delivery |
- 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 |
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No display showing flow |
- 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 |
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This equipment may only be used for the above described application ! |
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 |
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Dimensions: |
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| Width: | 270 mm |
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Height: |
136 mm |
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Depth: |
370 mm (with cover 420 mm) |
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Weight: |
approx. 7 kg (with cover 7.8 kg) |
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Electrical: |
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| Mains power: ( AC ) | 85 VAC to 250 VAC |
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Frequency: |
47 Hz to 440 Hz |
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Input power: |
max. 40 W |
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EMI filter: |
EN 55022 class B |
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Output voltage: |
max. 22 Vpp |
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Output current: |
max. 0.9 A |
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Corona current limitation: |
40 to 160 µA (adjustable) |
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Protection class: |
IP 64 |
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Radio interference level: |
FN |
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Display: |
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| High voltage: | 0 to 100 kV | Resolution: | 5 kV | 1 kV |
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Corona current: |
0 to 200 µA |
Resolution: |
10 µA |
5 µA |
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Tribo current: |
0 to 4 µA |
Resolution: |
0.2 µA |
- - |
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Pneumatic: |
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| Input air pressure: | 6 ... 8 bar | min. 6 bar | |
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Output air flows: |
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Feeding air volume: |
0.1 ... 4.5 Nm3/h |
Resolution: |
0.1 Nm3/h |
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Dosage air volume: |
0.1 ... 4.5 Nm3/h |
Resolution: |
0.1 Nm3/h |
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Atomizing air pressure: |
0 ... 2.5 bar |
Resolution: |
0.1 bar |
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Fluid- Tribo air pressure: |
0 ... 2.5 bar |
Resolution: |
0.1 bar |
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Compressed air quality acc. to ISO 8573.1: |
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| Residual water content in compressed air: | max. 1.3 g H2O/Nm3 at a dew point of 7 °C |
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Residual oil content in compressed air: |
max. 0.01 mg oil/Nm3 |
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Residual dust content in compressed air: |
max. 1 mg dust/Nm3 |
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Ambient conditions: |
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| Working temperature: | 5 to 45 °C |
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If low temperature powders are used the ambient temperature may have to be lower than 30 °C. |
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Volume measures 1 Nm3/h = 35.3 ft3/h |
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1) |
EN 50050 |
Electrical equipment for explosion-hazard areas Electrostatic manual powder coating equipment |
(published by |
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2) |
EN 50053 - 2 |
Regulations for the selection, installation and use of electrostatic spraying equipment for inflammable sprays |
(published by |
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3) |
ZH 1/443 and |
Electrostatic powder coating with manual powder coating equipment and fixed spraying equipment |
(published by |
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4) |
EX-RL / ZH 1/10 |
Guidelines for explosion protection |
(published by |
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5) |
VDE 0165 |
Installation of electrical equipment in explosion-hazard areas |
(published by |
|
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EN 50014 |
Electrical equipment for explosion-hazard areas |
(published by |
|
6) |
VDMA 24371 |
Guidelines for electrostatic coating using synthetic resin powders |
(published by |
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7) |
ELEX V |
Regulation for electrical systems in |
(published by |
|
8) |
VDE 0100 |
VDE guidelines for the construction of |
(published by |
|
9) |
EN 60204 part 1 |
VDE guidelines for the electrical equipment of machines |
(published by |
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10) |
VDE 0147 |
Guidelines for the construction of stationary electrostatic spraying equipment |
(published by |
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11) |
VDE 0105 |
Guidelines for the operation of high power converters |
(published by |
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12) |
VDE 0105 |
Operation of high power converters (additional regulation for stationary electrostatic spraying equipment) |
(published by |
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13) |
VDE 0132 |
Instructions for fire fighting in electric equipment and nearby |
(published by |
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14) |
VDE 0134 |
Instructions for first aid in case of accident |
(published by |
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15) |
VDS 2093 |
Association of insurance companies |
(Riehlerstr. 36 |
|
16) |
EN 50081-1 |
Electro-magnetic compatibility (EMV) generic standard interference emissions |
(published by |
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17) |
EN 50082-1 |
Electro-magnetic compatibility (EMV) generic standard resistance to interference |
(published by |
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:
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.