UV- TECHNOLOGY Technical Documentation ELC PE22 / PE32

�� 

our name is our principle 

� 

UV- 

TECHNOLOGY 

Technical Documentation 

ELC PE22 / PE32 

eta plus electronic gmbh 

Lauterstraße 29, D-72622 Nürtingen, Telefon +49 (0) 70 22 - 60 02-80, Fax +49 (0) 70 22 – 6 58 54 

Postfach 1411, D-72604 Nürtingen, e-mail: info@eta-uv.de 

–––––––––––––––––––––––––––– 

Eingetragen unter HRB 724321 AG Stuttgart, USt.-Id.-Nr. DE 146267800 

Geschäftsführer: Dr. Peter Schwarz-Kiene

ELC ® („Electronic Lamp Control“) is a registered trademark of 

IST Metz GmbH. 

ELC PE22_PE32-V2.2-09.11-GB Subject to technical alterations

Contents page I 

Contents 

1 Safety ................................................................................................. 1 

1.1 Definition of Symbols.................................................................................1 

1.2 Safety Advice ..............................................................................................1 

1.3 Correct operation........................................................................................2 

1.4 Extended use ..............................................................................................2 

2 Description of functions................................................................... 3 

3 Installation......................................................................................... 4 

3.1 Mounting of casing.....................................................................................4 

3.1.1 Vertical installation position ............................................................................5 

3.1.2 Horizontal installation position ........................................................................6 

3.2 Connection ..................................................................................................7 

3.3 Control- and bus connections .................................................................11 

3.4 Comments on the safety functions of the ELC ......................................14 

3.4.1 Safety relay...................................................................................................14 

3.4.2 Initialisation signal.........................................................................................15 

3.5 Configuration ............................................................................................15 

3.5.1 Setting up the PROFIBUS address...............................................................16 

3.5.2 Checking the PROFIBUS connection ...........................................................17 

3.5.3 Setting lamp power via PROFIBUS ..............................................................18 

3.5.4 To read out ELC serial number and softwareversion....................................20 

4 Operation of ELC ............................................................................ 21 

4.1 Initial operation .........................................................................................21 

4.2 Switching on the ELC...............................................................................21 

4.3 Activating the safety circuits ...................................................................21 

4.4 Switching on the lamp..............................................................................21 

4.5 Dimming operation ...................................................................................23 

4.6 Standby operation ....................................................................................23 

4.7 Switching off the lamp..............................................................................23 


Contents page II 

5 Monitoring, warning, error, repair ................................................. 24 

5.1 Earth fault control.....................................................................................24 

5.2 Warning messages ...................................................................................25 

5.3 Error...........................................................................................................27 

5.3.1 Error messages ............................................................................................27 

5.3.2 Troubleshooting ............................................................................................28 

5.3.3 Resetting the error register ...........................................................................29 

5.4 Repair ELC ................................................................................................29 

6 Technical Data................................................................................. 30 


1 Safety page 1 

1 Safety 

1.1 Definition of Symbols 

� 

Stop (Stop Danger). This symbol warns of serious danger of severe injury to 

persons. It must be strictly observed. 

Attention (Warning). This symbol indicates information the non-observance of 

which can lead to extensive damage to property. The safety warning must be 

strictly observed. 

Information. This symbol indicates key information on use. Non-observance can 

lead to failure. 

1.2 Safety Advice 

The ELC must be installed and connected in compliance with existing 

regulations and practices. This is e.g. EN 60204-1 in Europe. 

Repairs on the ELC may only be carried out by the manufacturer. 

The installation and starting up may only be carried out by skilled electricians. 

Do not open the ELC before it is disconnected from the mains. BEWARE OF 

RESIDUAL VOLTAGE! The unit may still be live up to three minutes after it has 

been switched off. 


1 Safety page 2 

The ELC causes a leakage current greater than 3.5 mA! 

Safeguarding by means of leakage current protection type A and type AC 

according to IEC 60755 is not permitted! 

The ELC operates in principle as a frequency converter and is equipped with a 

mains filter whose leakage current could activate fuse protection. 

Contact to the grounding connector must always be ensured. 

Additional measures must be taken to ensure that there is no danger when 

touching the appliance. This could be by means of a universal leakage current 

protection type B, taking into consideration the increased response threshold, or 

by means of an independent equipotential connection. 

1.3 Correct operation 

The ELC is an electrical unit intended to be installed in the switch cabinets of 

industrial high-voltage power installations. It is conceived as an electronic ballast 

for the operation of lamps intended for this purpose. 

Any other use is deemed as misuse. The manufacturer will not assume liability 

for damage resulting from misuse. 

A pre-requisite for authorised operation of the ELC is the observance of both the 

operating and maintenance instructions and the safety advice. 

1.4 Extended use 

Extended use beyond the operating specifications as stated is not permitted. 

The manufacturer will not assume liability if the equipment is used in any other 

way. The operator acts at his own risk. 

Any operation beyond the scope of the authorised operation is considered to be 

misuse. 


2 Description of functions page 3 

2 Description of functions 

The ELC is an electronic power supply unit for the operation of gas discharge lamps with 

electrical properties as described in chapter 6. 

In contrast to conventional ballasts (inductive lamp ballast or transformer or transformer with 

transductor), the lamp with an electronic ballast is operated with high frequency (approx. 

100 kHz). The lamp does not flicker and dimming is infinitely adjustable to a range between 

20 % and 100 % of the electric power or to between 15 % and 100 % of the UV radiation 

respectively. 

Dimming 

The possibility of dimming the lamp has two advantages. Firstly the lamp can be switched to 

minimum load (standby operation) during longer idle times and energy can thus be saved. 

Secondly the optimum lamp power can be determined and adjusted as appropriate. 

Power control 

The ELC offers a high level of lamp power constancy due to its integrated power control. 

Variations in operating voltage of ± 10 % do not affect lamp power. 

Ignition device 

When the lamp is switched on the ELC initiates trigger pulses to fire the lamp; a separate 

ignition device is not required. 

Other performance characteristics 

• High level of electrical efficiency. 

• Configuration, control and monitoring of the ELC is carried out via PROFIBUS-interface. 

• The ELC monitors the lamp cables for earth fault. 

• The lamp output potential is separated from that of the supply voltage. 

• The ELC is both short-circuit proof and safe in open circuit operation at the lamp output. 


3 Installation page 4 

3 Installation 

3.1 Mounting of casing 

The ELC must be installed in a control cabinet with at least IP 54 protection (see 

EN 60529). Operation without a control cabinet or in a control cabinet with a 

lower degree of protection is not permitted. 

It is only permitted to install the appliance in the positions described in 3.1.1 or 

3.1.2. When installed vertically, as described in Fig. 1, the control connections 

must be positioned at the bottom and supply connections at the top. Installation 

must allow for the minimum spacing. 

The ELC should not be mounted in the immediate proximity of sensitive 

electronic equipment. An appropriate distance must be maintained to scatter 

field transformers or other inductors. 

The flow of cool air for the ELC must be safeguarded. The ambient temperature 

must not exceed the values prescribed in chapter 6. 

Ventilation must be provided for the switch cabinet. 

The amount of air necessary is determined by the size and positioning of the 

switch cabinet, the total electrical losses and the external temperature. Please 

consult your switch cabinet manufacturer. For the recommended throughput of 

air please see the technical data in chapter 6. 

Impure cooling air could affect the functionality of the ELC. This can be avoided 

by installing a fine air filter. 



3.1.1 Vertical installation position 

Lufteintritt 

air entrance 

Lufteintritt 

air entrance 

Netzanschluß 

line input 

Lampenstecker 

lampconnection 

261 mm 

Steckerleiste für Steuersignale 

Oben 

top 

control connector 

ELC PE22_PE32-V2.2-09.11-GB Subject to technical alterations 

540 mm 

484 mm 

31 mm 200 mm 

31 mm 

Luftaustritt 

air exhaust 

Luftaustritt 

air exhaust 

Fig. 1: Assembly of the ELC, vertical installation position (all dimensions in mm). 

min. 150 

min. 150 

501 mm 

650 mm


3.1.2 Horizontal installation position 

Lufteintritt 

air entrance 

Lufteintritt 

air entrance 

261 mm 

Steckerleiste für Steuersignale 

control connector 

484 mm 


min. 150 

650 mm 

501 mm 

Fig. 2: Assembly of the ELC, horizontal installation position (all dimensions in mm). 

min. 150


3.2 Connection 

L1 

L2 

L3 

N 

PE 

L1 L2 L3 

EVG 

out1 out2 

lamp assembly 

earthed lead network side 

automatic cutout 

power choke 

cable shield 

lamp feeder cable 

Fig. 3: Power connection PE22 / PE32 

Mains connection 

Fig. 4: Mains PE22 

� PE22: 


Fig. 3 shows the electrical installation. 

Operation of the ballasts requires a power 

choke in series (see technical data chapter 

6) in order to limit the total harmonic 

distortion of the line current to below 50%. 

The lamp feeder cable shielding must be 

connected to the ELC. To this end the 

connector has an EMC screw connection 

(also see: connection lamp cable). 

If wished, the shielding can also be 

connected to the lamp unit. 

The connection of mains supply cables and lamp feeder cables must be 

separated from control cables. 

Fig. 5: Mains PE32 

The cross section of the 

earthed wire must be at least 

10 mm². 

The three phases must be 

provided with an automatic 

cutout. 

In order to avoid damaging the terminal pins, please do not exceed the following 

torque: 

L1, L2, L3: 1,5 – 1,8 Nm 

Grounding conductor: 3,0 – 4,0 Nm 

PE32: 

L1, L2, L3: 1,5 – 1,8 Nm 

Grounding conductor: 1,5 – 1,8 Nm


Connecting the lamp feeder cable 

� 

The lamp feeder cable must correspond with the cable parameters described in 

chapter 6. 


Components of the connector: 

connector module 

crimp contacts 

hood 

EMC cable gland with 

plastic insert 

Preparing the lamp feeder cable: 

• Remove sheath 

• Free metal braid and put over cable 

sheath 

• Insulate conductor 

7,5 

100 12 

(measurements in mm) 

A suitable contact crimping tool is required of 

the type: 

Amphenol group C146 

Part No.: VN01 025 0029 1C 

Closed crimp barrels (individual contacts) 

2.5mm



Top: Correct crimp connection 

Middle: Stripped part of the wire too long, 

gap between insulation and crimp barrel too 

large 

Bottom: Stripped part of the wire too short 

because conductor is not visible through 

inspection hole. 

• Insert cable into the cable gland and 

bush casing 

• Insert crimp contacts into the connector 

module until they lock into place 

• Ensure that the shield evenly covers the 

plastic inset of the cable gland (360° 

contact) 

• Tighten EMC cable gland



• Screw the module into the hood casing. 

The picture on the left shows the 

recommended orientation. 

The lamp feeder cable between the switch cabinet and lamp assembly must be laid 

protected. For the correct installation of the lamp assembly and lamp please observe the 

corresponding manufacturer’s instructions.


3.3 Control- and bus connections 

Fig. 6 Control and bus connections 

Fig. 7 Coding control plug 

All control circuits must be earthed upon installation. 


The control and bus cables are connected to the 

underside of the casing (see Fig. 6) by means of the 

plug connections available as accessories. 

In order to minimise the danger of mixing up the control 

connectors, the sockets on the appliance have been 

coded with the red code profiles. They are positioned 

according to the following picture: 

When the control connectors are delivered they are not 

coded and cannot be connected in this condition! In 

order to code the control connector the corresponding 

code “nose” must be removed (see Fig. 7). Pin 1 is 

marked by means of a stamping:


Overview pin assignment 

The connector pin assignment is shown in Fig. 8 and will be explained in the following tables. 

X1.1 X1.2 X1.3 X3.1 X3.2 X3.3 X3.4 

INIT 

PIN 

SAFETY 

CONT1 

INIT 

GND 

SAFETY 

REL 

BUS 

VCC 


BUS B BUS A BUS 

GND 

SAFETY PROFIBUS 

SAFETY 

CONT2 

SAFETY 

GND 

BUS 

VCC 

BUS B BUS A BUS 

GND 

X2.1 X2.2 X2.3 X4.1 X4.2 X4.3 X4.4 

Fig. 8 Connector strip for ELC control 

Pin assignment of initialisation signal 

Designation Number Description technical 

INIT PIN X1.1 Input initialisation signal for 

safety shutdown +24Vext. 

24V DC ± 10% external 

supply 

INIT GND X1.2 GND Reference potential for X1.1 

Pin assignment of safety relay 


SAFETY REL X1.3 Control signal input safety relay 

+24V DC 

Control pulse (+24V DC ± 

10% / 35mA) for the safety 

relay in reference to X2.3 

(GND) 

SAFETY CONT1 X2.1 Feedback contact 1 safety relay NCC 24V / 4A 

SAFETY CONT2 X2.2 Feedback contact 2 safety relay NCC 24V / 4A 

SAFETY GND X2.3 GND Reference potential for X1.3 

(safety relay)


Pin assignment of PROFIBUS 


BUS VCC X3.1 external supply voltage 5V 

isolated for PROFIBUS 

BUS B X3.2 Data line PROFIBUS B Bus signal B 

BUS A X3.3 Data line PROFIBUS A Bus signal A 


+5V DC isolated, output for 

terminator 

BUS GND X3.4 GND isolated for PROFIBUS Shield connection PROFIBUS 

BUS VCC X4.1 external supply voltage 5V 

isolated for PROFIBUS 

BUS B X4.2 Data line PROFIBUS B Bus signal B 

BUS A X4.3 Data line PROFIBUS A Bus signal A 

+5V DC isolated, output for 

terminator 

BUS GND X4.4 GND isolated for PROFIBUS Shield connection PROFIBUS 

The PROFIBUS contacts of X3 and X4 are internally connected. According to requirements 

apply a terminator in compliance with PROFIBUS-Norm IEC 61158: 

Fig. 9: Termination of PROFIBUS


3.4 Comments on the safety functions of the ELC 

Fig. 10: Safety circuits of the ELC 

3.4.1 Safety relay 


ELC with PROFIBUS feature 

two safety circuits, as shown 

schematically in Fig. 10: 

1. Safety relay K1 with 

feedback via the normally 

closed contact (paragraph 

3.4.1) 

2. Monitoring of the 

initialisation signal 

(paragraph 3.4.2) 

To set the ELC ready for operation, the safety relay K1 has to be activated by applying +24V 

to pin X1.3 and GND on pin X2.3. 

As long as the safety relay is not activated, lamp operation is not possible! There are two 

feedback paths: 

• a normally closed relay contact. It may be tapped on pins X2.1 and X2.2. 

• the [Warning Register] of the PROFIBUS-input-data (see below and paragraph 5.2: 

Bit 4 {Safety Relay Open}) 

If the safety relay is deactivated during lamp operation, lamp operation will be shut down. 

After reactivating the safety relay, the lamp has to be restarted.


3.4.2 Initialisation signal 

Furthermore lamp operation will not be allowed unless +24V are applied to pin X1.1 and 

GND on pin X1.2. This is an additional monitoring function for the safe operation of the 

installation. The status of pin X1.1 is visualized in the [Warning Register] of the PROFIBUSinput-data 

(see below and paragraph 5.2: Bit 7 {Init Signal Ok}). 

If the initialisation signal is deactivated during lamp operation, lamp operation will be shut 

down. After re-applying the initialisation signal, the lamp has to be restarted. 

3.5 Configuration 

Communication between ELC and installation control is carried out via PROFIBUS DPV0. 

The ELC represents a non-modular DPV0-Slave, the installation control functions as the 

Master. 

For configuration, control and monitoring of the ELC 16 input registers (Master receiving data 

from ELC) were implemented, as well as 6 output registers (Master sending data to ELC). 

For registers overlapping more than one byte, the byte order was determined according to 

”Big-Endian“. 

The preset baud rate is recognized automatically by the ELC. Software supports all baud 

rates from 9.6kBit to12MBit; tested values can be taken from the technical data in chapter 6 

(limitations may be caused by the connector). 

The necessary adjustments during the installing of the ELC will be explained in this 

paragraph, the adjustments for lamp operation will follow in chapter 4. 

PROFIBUS-input-data (ELC → Master) 

Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

Name [ELC 

Serial 

Number] 

[Software 

Version] 

[ELC 

Nominal 

Power] 


[Error 

Register] 

PROFIBUS-output-data (Master → ELC) 

Byte- 

Nr. 

Name [Power 

Set 

Value] 

0 1 2 3 4 5 

[Installed 

Lamp 

Power] 

[Lamp 

Control] 

[Reserved] 

[Warning 

Register] 

[Lamp 

Status] 

[Actual 

Power] 

[Actual 

Voltage] 

[Actual 

Current] 

[Reserved]


3.5.1 Setting up the PROFIBUS address 

Fig. 11: LED status (red left, green right) and rotary coding switch for low and high nibble 

The PROFIBUS address must be set using the rotary coding switches. 

The address space extends from 01hex to 7Dhex (corresponding to 1 to 125), whereby low and 

high nibble are allocated according to Fig. 11. Each address may be used only once per 

installation. 

The address is adopted when current is applied to the ELC (paragraph 4.2). If the appliance 

is already under power supply, it must first be disconnected. 



3.5.2 Checking the PROFIBUS connection 

The Status-LED (Fig. 11) may be used to check the successful connection of ELC and 

Master and furthermore the existence of an error (ELC not ready for operation): 

LED red 

(left) 

LED green 

(right) 


Status Corrective action 

off on ELC ready for operation, 

PROFIBUS-connection ok 

off blinking ELC ready for operation, no 

PROFIBUS-connection 

blinking on ELC not ready for 

operation, PROFIBUSconnection 

ok 

blinking blinking ELC not ready for 

operation, no PROFIBUSconnection 

Check plug contact, bus 

termination (see paragraph 3.3), 

check address and panelprogramming. 

The error cause detected by the 

ELC may be read out in the Error 

Register (see paragraph 5.3.1) 

Detach ELC from mains and 

restart. 

blinking off Internal error. Detach ELC from mains and 

restart. 

off off Internal error or no supply. Check power supply


3.5.3 Setting lamp power via PROFIBUS 


Byte- 

Nr. 

0 1 2 3 4 5 

Name [Power 

Set 

Value] 

[Installed 

Lamp 

Power] 

[Lamp 

Control] 


[Reserved] 

The set value for lamp power has to be written into the register [Power Set Value]. The 

ELC’s output power is defined by the control characteristic of Fig. 12. 

Lamp power 

ELC-nominalpower 

20% ELC-nominal-power 

Fig. 12: Control characteristic 

20% ELC-nominal-power ELC-nominalpower 

The lamp power can be set in steps of 32 W. 

[Power Set 

Value] 

The ELC’s nominal power is written into the register [ELC Nominal Power] of the 

PROFIBUS-input-data: 


Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

[Software 

Version] 


Nominal 

Power] 

[Error 

Register] 

[Warning 

Register] 

[Lamp 

Status] 

[Actual 

Power] 

[Actual 

Voltage] 

[Actual 

Current] 

[Reserved]



Byte- 

Nr. 

Name [Power 

Set 

Value] 

0 1 2 3 4 5 

[Installed 

Lamp 

Power] 

[Lamp 

Control] 


[Reserved] 

To limit the maximum output power, use the register [Installed Lamp Power] (see Fig. 13). 

This function is appropriate if the nominal power of the lamp is lower than the nominal power 

of the ELC. 

Lamp power 


[Installed Lamp 

Power] 

20% ELC-nominal-power 

Fig. 13: Limited output power characteristic 

� 

20% ELC-nominal-power Installed lamp 

power 


Sollleistungs- 

[Power 

vorgabe 

[Power 

vorgabe 

Set 

Value] 

[Power 

Value] 

[Power Set 

Value] 

The control characteristic of Fig. 12 comes into effect, if the register [Installed 

Lamp Power] is 

• not set 

• below 20% of ELC nominal power 

• above ELC nominal power


3.5.4 To read out ELC serial number and softwareversion 

These data may be accessed via display or PROFIBUS and may be of interest e.g. for 

service and in case of a defect. 


Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

↓ 

[Software 

Version] 


Nominal 

Power] 


[Error 

Register] 

[Warning 

Register] 

[Lamp 

Status] 

[Actual 

Power] 

Byte 2 Byte 1 Byte 0 

[Actual 

Voltage] 

[Actual 

Current] 

7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 

consecutive number 

month year 

[ELC Serial Number] is indicated by the first three registers. The exact division of the bits 

into year, month and consecutive number is defined by the brackets. 

Example: 01F30516 stands for: consecutive number = 62, month = 6 and year = 5. 

[Software Version] contains the currently installed software version. The high nibble 

represents the main version (e.g. 10), the low-nibble the secondary version (e.g. 2). 

Accordingly the example Version 10.2 is written as A216. 

[Reserved]

4 Operation of ELC page 21 

4 Operation of ELC 

4.1 Initial operation 

• The operative parameters of the ELC, such as the scope of the trigger pulse when 

switching on the lamp, are set by the manufacturer. 

• You must always ensure that the correct lamp type is used (see chapter 6) and that all 

wireing is properly connected! 

4.2 Switching on the ELC 

• The ELC is switched on by applying the operating voltage and the 24V supply. 

4.3 Activating the safety circuits 

• Activate the safety relay 

• Apply the initialisation signal 

4.4 Switching on the lamp 


Byte- 

Nr. 

0 1 2 3 4 5 

Name [Power 

Set 

Value] 

[Installed 

Lamp 

Power] 

[Lamp 

Control] 

↓ 


[Reserved] 

Bit 7 6 5 4 3 2 1 0 

Name n/a n/a n/a n/a n/a n/a Clear 

Error 

Start 

Lamp 

• Before starting the lamp it is necessary to write the desired lamp power into the register 

[Power Set Value] in Watts. To transfer the lamp and its surrounding into a thermally 

stable condition, it is recommended to choose the maximum lamp power for [Power Set 

Value] during the lamp warm-up period. 

• To ignite the lamp set the {Start Lamp}-Bit in register [Lamp Control] to 1. 

• {n/a}: not available. These bits are reserved for future applications.


� 

� 

� 

Power must be applied to the ELC for at least 2 seconds before attempting to 

fire the lamp. 

In case of an error the ELC will not try to ignite the lamp. After eliminating the 

error the [Error Register] has to be cleared additionally (see paragraph 5.3). 

As long as the safety circuits are not activated the ELC will not try to ignite the 

lamp (see paragraph 5.2). 

During warm-up the lamp power stays at a very low level over a longer period of time and 

after approximately 60 seconds rapidly increases to its nominal power. The lamp is operated 

with increased current until the nominal power is reached. The actual condition of the lamp 

may be read out from register [Lamp Status] of the PROFIBUS-input-data: 


Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

[Software 

Version] 


Nominal 

Power] 

Bits in use in register [Lamp Status]: 


[Error 

Register] 

[Warning 

Register] 

[Lamp 

Status] 

↓ 

[Actual 

Power] 

[Actual 

Voltage] 

[Actual 

Current] 

Bit 7 6 5 4 3 2 1 0 

Name n/a n/a n/a n/a n/a Lamp 

Ignition 

• Bit 2 {Lamp Ignition}: during the ignition phase of the lamp the ”ignition“ bit is set (value = 

1, otherwise 0). 

• Bit 1 {Run Up}: during warm-up of the lamp the “run-up“-bit is set (value = 1, otherwise 0). 

• Bit 0 {Lamp On}: as soon as the lamp has reached the required power and lamp voltage 

is in a steady state, the ”lamp-on“-bit will be set (value = 1, otherwise 0). 

Further operation data of the continuous operation state may be read out from the registers 

[Actual Power], [Actual Voltage] and [Actual Current]: 

• [Actual Power] returns the actual power in Watts. 

• [Actual Voltage] gives account of the actual lamp voltage in Volts. 

• [Actual Current] contains the actual current in Ampère*10 with an accuracy of 100 mA 

(e.g.: [Actual Current] = 12 means 1,2 A). 

Run 

Up 

[Reserved] 

Lamp 

On


4.5 Dimming operation 

After having reached nominal operation the desired lamp power can be infinitely adjusted. 

• Enter the desired power in Watts in register [Power Set Value]. 

� 

A set value of less than 20% of the ELC-nominal-power will automatically be 

increased by the ELC to 20% of the ELC nominal- power. 

4.6 Standby operation 

During longer idle times the ELC can be switched to standby operation. The lamp is operated 

at minimum power but can be brought up to nominal power within a few seconds. 

• Standby operation corresponds to 20% of the ELC nominal power. This can be attained 

by setting the register [Power Set Value] at a value equal to or lower than 20% of ELC 

nominal power. 

The warm-up time from standby operation to nominal operation depends on the lamp's 

ambient conditions. If cooling is too intensive during dimming operation, the acceleration time 

is prolonged. 

4.7 Switching off the lamp 

• The lamp is switched off by setting the {Start Lamp}-bit to 0 in register [Lamp Control]. 

� 

In order to avoid heat accumulation in the ELC the power supply should be left 

on for a few minutes. Before restarting, the lamp must be sufficiently cooled 

down as it cannot be fired otherwise. 


5 Monitoring, warning, error, repair page 24 

5 Monitoring, warning, error, repair 

5.1 Earth fault control 

Supplementary to the safety functions of paragraph 3.4 which prevent danger to the 

operator, the earth fault control of the ELC lamp circuit represents another monitoring 

function. 

Lamp 

R_error 

Error Register 

PROFIBUS-connection 

Fig. 14: Earth fault monitoring 

Earth Fault Bit 

PROFIBUS input data (ELC → Master) 

Byte- 

Nr. 


An earth fault occurs when the isolation resistance 

R_error (see Fig. 14) drops below approx. 200 kOhm. 

The ELC will shut down the lamp automatically in 

case of an earth fault. 

In order for the earth fault control to function properly 

it is essential that the ELC is connected as 

prescribed, particularly the earth connectors. 

An earth fault is reported by the {Earth Leakage 

Fault}-bit in the [Error Register] (in normal 

operation status the bit value is 0). 

Earth fault monitoring is also active if the lamp is not 

running. However the error message will only be 

effectuated when trying to start the lamp. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

[Software 

Version] 


Nominal 

Power] 

[Error 

Register] 

Byte 6 

↓ 

[Warning 

Register] 

[Lamp 

Status] 

[Actual 

Power] 

[Actual 

Voltage] 

Bit 15 14 13 12 11 10 9 8 

Name n/a n/a Lamp 

Power 

Low 

internal internal Earth 

Leakage 

Fault 

[Actual 

Current] 

internal internal 

[Reserved]


Byte 7 

Bit 7 6 5 4 3 2 1 0 

Name Lamp 

Voltage 

High 

� 

internal Bus 

Connection 

Error 


internal ELC 

Temperature 

High 

internal Main 

Voltage 

Low 

internal 

In order to avoid an unwanted reaction of the earth fault control during faultless 

operation, the isolation resistance of the lamp cables and all lamp connectors 

must be greater than 10 MΩ. 

5.2 Warning messages 

The bits in the [Warning Register] are divided into two groups: 

• Group1-Nibble: the bits 0-3 represent critical operating conditions of the lamp. However 

they won’t shut down the lamp. 

• Group2-Nibble: If a bit in the Group2-nibble (bits 4-7) is set, the lamp cannot be started 

or will be shut down during operation. 

The bits of the [Warning Register] will automatically be reset as soon as the triggering status 

has been resolved. 


Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

[Software 

Version] 


Nominal 

Power] 

[Error 

Register] 

[Warning 

Register] 

↓ 

[Lamp 

Status] 

[Actual 

Power] 

[Actual 

Voltage] 

[Actual 

Current] 

Bit 7 6 5 4 3 2 1 0 

Name Init 

Signal 

Ok 

n/a Lamp 

Ignition 

Failed 

Safety 

Relay 

Open 

Group 2: 

Lamp operation not 

possible 

n/a n/a Run 

Up 

Long 

Group 1: 

No shut 

down 

[Reserved] 

Lamp 

Voltage 

Low


Bit 0: The {Lamp Voltage Low}-bit is set if the burning voltage of the lamp falls 

below its minimum (set by the manufacturer). This bit will be reset if the lamp 

voltage exceeds the minimum. 

Bit 1: The {Run Up Long}-bit is set if the warm up of the lamp takes longer than 

expected. Reset occurs as soon as the {Start Lamp}-bit in register [Lamp 

Control] is set to 0 (the lamp being thus actively shut down by the operator 

via the PROFIBUS output data). 

Bit 4: The {Safety Relay Open} bit is set if the safety relay is not closed (e.g. on 

emergency shutdown). There are two different cases: 

• If in register [Lamp Control] {Start Lamp} bit is 0, the {Safety Relay 

Open} bit is automatically reset as soon as the safety relay is closed. 

• During lamp operation ({Start Lamp}=1 in [Lamp Control]) the {Safety 

Relay Open} bit remains set and the lamp will be shut down by the ELC. 

In this case {Safety Relay Open} will only be reset if {Start Lamp} in 

[Lamp Control] is reset and the safety relay has been closed. 

Bit 5: If the ELC cannot ignite the lamp the {Lamp Ignition Failed} bit will be set 

and remains in this status as long as {Start Lamp}=1 in [Lamp Control]. The 

{Lamp Ignition Failed} bit is reset as soon as {Start Lamp} in [Lamp 

Control] is reset. 

Bit 7: The {Init Signal Ok} bit reflects the status of the Init-Pin X1.1 of the 

initialisation signal (see paragraph 3.4.2). 

• {Init Signal Ok}=1 means 24 V on X1.1, the lamp may be ignited and 

operated normally. 

• {Init Signal Ok}=0 means 0 V on X1.1, the lamp cannot be operated. 

To render the ELC operational again in case {Init Signal Ok}=0 the 

initialisation signal on X1.1 has to be 24V and the start signal {Start Lamp} 

has to be reset. 

Bit 2, Bit 3 und Bit 6: {n/a} bits (not available) are reserved for future applications. 



5.3 Error 

5.3.1 Error messages 

Effects of an error: 

• The lamp will be immediately shut down, 

• In case of an error the red Status-LED is blinking (s. Fig. 11), 

• Bits in the [Error Register] will be set as soon as the correspondent error occurs. 


Byte- 

Nr. 

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 


Serial 

Number] 

[Software 

Version] 


Nominal 

Power] 


[Error 

Register] 

[Warning 

Register] 

Byte 6 

↓ 

[Lamp 

Status] 

[Actual 

Power] 

[Actual 

Voltage] 

Bit 15 14 13 12 11 10 9 8 

Name n/a n/a Lamp 

Power 

Low 

Byte 7 

internal internal Earth 

Leakage 

Fault 

[Actual 

Current] 

internal internal 

Bit 7 6 5 4 3 2 1 0 

Name Lamp 

Voltage 

High 

internal Bus 

Connection 

Error 

internal ELC 

Temperature 

High 

internal Main 

Voltage 

Low 

internal 

Bit 1: An error of the mains is recorded in the {Main Voltage Low}-bit if the mains 

voltage falls below the allowed minimum (see chapter 6) during lamp 

operation. 

Bit 3: The {ELC Temperature High} bit is set as soon as the acceptable 

temperature is exceeded. 

Bit 5: If the PROFIBUS connection is interrupted during lamp operation the {Bus 

Connection Error} bit is set. Additionally the green Status-LED (see Fig. 11) 

is blinking, or completely off as soon as the internal communication of the ELC 

is interrupted. 

Bit 7: If the burning voltage of the lamp is too high the {Lamp Voltage High} bit is 

set. 

[Reserved]


Bit 10: The {Earth Leakage Fault}-bit is set if a leakage current to ground on Rerror 

(see paragraph 5.1) is detected. 

Bit 13: If the lamp extinguishes on its own during lamp operation, the {Lamp Power 

Low} bit is set. 

Bit 0, Bit 4, Bit 6, Bit 8, Bit 9, Bit 11, Bit 12: bits for analysis by the manufacturer.. 

Bit 2, Bit 14 und Bit 15: {n/a} bits (not available) are reserved for future 

applications. 

5.3.2 Troubleshooting 

Troubles Possible causes Corrective action 

Bit 1: mains voltage too low mains voltage drop or 

fluctuations 

Bit 3: ELC-temperature too 

high 

Bit 5: No bus connection Bus termination faulty, 

loosend connector 

Bit 7: Burning voltage of the 

lamp too high 

Bit 10: Earth fault in lamp 

circuit 

Bit 13: Lamp extinguishes 

on its own 


Check connections and mains 

voltage (if possible) 

Ambient temperature too high Check fans of cabinet 

(direction of air current, change 

filter mats) 

Check termination and 

connector 

Lamp type not correct Check lamp type and switch 

lamp 

Bad wiring on the lamp, high 

air humidity, polluted cables or 

connections 

Cooling too strong or lamp 

defect 

Check lamp wiring and 

isolation resistance (if 

possible) 

Reduce cooling or replace 

lamp


5.3.3 Resetting the error register 

Each error has to be acknowledged by setting the {Clear Error} bit in register [Lamp 

Control] to “1”. First of all set the {Start Lamp} bit in register [Lamp Control] to 0. Then 

only the transgression of the {Clear Error} bit from “0” to “1” can reset the [Error Register]. 

After the PROFIBUS has transmitted the [Lamp Control] Register (check e.g. via the [Error 

Register]: if error eliminated all error bits are „0“ again) and after an ELC internal 

synchronisation time of additional 15 ms, the {Clear Error}-bit has to be reset to „0“. 


Byte- 

Nr. 

Name [Power 

Set 

Value] 

0 1 2 3 4 5 

5.4 Repair ELC 

[Installed 

Lamp 

Power] 

[Lamp 

Control] 

↓ 


[Reserved] 

Bit 7 6 5 4 3 2 1 0 

Name n/a n/a n/a n/a n/a n/a Clear 

Error 

Start 

Lamp 

Only the manufacturer is permitted to repair the ELC. In case of failure please contact the 

following address: 

eta plus electronic gmbh 

Lauterstraße 29 

D-72622 Nürtingen 

Tel: +49 7022 / 6002-80 

Fax: +49 7022 / 65854 

e-mail: Info@eta-uv.de

6 Technical Data page 30 

6 Technical Data 

General data ELC 

Power choke Uk = 4% 

Power factor Typ. 0.88 

at Uk = 4% of the upstream power choke 

Power efficiency Typ. 0.94 

Mains frequency 50 / 60 Hz 

Tolerance mains voltage nominal voltage ± 10 % 

Recommended air throughput 

for cabinet ventilation 


300 m 3 / h per ELC installed at ∆T = 10 K 

Control range approx. 20 - 100 % 

Firing voltage / duration < 3500 V / < 1 sec. 

Protection IP 20 

Permissible pollution pollution severity 2 according to VDE 0110 

Permissible humidity relative atmospheric humidity 80 %, non-condensing 

Dimensions (H x W x D) approx. 650 x 261 x 484 mm 

Installation position vertical (lamp and power connection at the top; control connections at the 

bottom) or horizontal respecting the minimum spacing in 3.1 

Baud rate Tested up to 500kBit 

EMC EN 55011 

EN 61000-3-3 

EN 61000-6-2 

Safety EN 50178 

Leakage current Leakage current > 3 mA, see chapter 1 “Safety“

6 Technical Data page 31 

Type specific data (nominal values) 

Typ ELC 

PE22-400-210 


ELC 

PE32-400-280 

Power supply 3 x 400 V 3 x 400 V 

Supply current 38,2 A 57,0 A 

Max. supply current 42,6 A 62,6 A 

Weight approx. 29 kg approx. 37 kg 

Line protection * 50 A 63 A 

Max. ambient 

temperature 

in operation 

Max. ambient 

temperature 

during storage and 

transportation 

0°C bis +45°C 0°C bis +40°C 

-20°C bis +70°C -20°C bis +70°C 

before initial operation leave at 

least 4 hrs at room temperature 

Lamp output 22 kW 32 kW 

Lamp voltage 2100 V 2800 V 

Tolerance lamp voltage ± 5 % ± 5 % 

*Line protection: 3-channel automatic cut-out characteristic C 

Lamp feeder cable: approved types and lengths 

� 

The use of cable types which have not been approved by the manufacturer can 

lead to malfunction. The possibility of damage to the electronic ballast cannot be 

excluded. 

Article no. Type ELC PE22-400-210 ELC PE32-400-280 

8067 

Lamp feeder cable 4kV 

2x2.5 mm² 

external-Ø 13,5 mm 

5-40 m 5-40 m 

The data refers to distance between ELC and lamp.

UV- TECHNOLOGY Technical Documentation ELC PE22 / PE32

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?