Dungs MPA 5111 User Manual

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Page 1

Manual

MPA 5111

Edition: 02.14

1 … 68

Printed in Germany • Edition 08.09 • Nr. 255 270

Nr. 254 722 - GB

Page 2

1 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

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Table of Contents

1 Short description ..................................................................................................................................................4

2 Accessories ...........................................................................................................................................................4

3 Classication according to EN298 ......................................................................................................................4

4 Approvals ...............................................................................................................................................................4

5. Technical data .......................................................................................................................................................5

5.1 General information ..............................................................................................................................................5

5.2 Outputs .................................................................................................................................................................5

5.3 Inputs ....................................................................................................................................................................6

5.4 Extension module .................................................................................................................................................6

6 Connection diagram .............................................................................................................................................7

7 Description of the behaviour ...............................................................................................................................9

7.1 Unlocking function ................................................................................................................................................9

7.2 Special operating modes .....................................................................................................................................9

7.2.1 Operation without valve testing system (VPS) ....................................................................................................9

7.2.2 Operation with valve testing system ...................................................................................................................9

7.2.3 Operation with reduced pre-aeration time ........................................................................................................14

7.2.4 Operation with ignition gas ame .....................................................................................................................14

7.3. Special setting options .......................................................................................................................................14

7.3.1 Dierent types of the air pressure detector monitoring .....................................................................................14

7.3.2 Dierent types of the temperature controller default or heat request ................................................................14

7.3.1 Dierent types of the modulation degree default ..............................................................................................14

7.3.4 Waiting program with open safety chain or lack of gas on the GDWVPS ..........................................................14

7.5 State description .................................................................................................................................................15

8 Parameters ...........................................................................................................................................................19

8.1 P1x General parameters .....................................................................................................................................19

8.2 P2x - Fan ............................................................................................................................................................23

8.3 P3x Stepped motor ............................................................................................................................................26

8.4 P4x - VPS ............................................................................................................................................................28

8.5 P5x - Additional valve ..........................................................................................................................................29

8.6 P6x - Startup .......................................................................................................................................................30

8.7 P7x - Operation ...................................................................................................................................................31

8.8 P8x - Switch-o ...................................................................................................................................................33

8.9 P9x - Waiting program .........................................................................................................................................34

8.10 Internal parameters ...........................................................................................................................................35

8.11 Parameter record and stick for continuous run ..................................................................................................36

9 Curve settings/modulation degree ....................................................................................................................37

9.1. Stick and VisionBox ............................................................................................................................................37

9.2 Denition of terms ...............................................................................................................................................38

9.2.1 Burner capacity ................................................................................................................................................38

9.2.2 Modulation degree ...........................................................................................................................................38

9.2.3 Curve point ......................................................................................................................................................38

9.2.4. Special point ...................................................................................................................................................38

10 Error overview ...................................................................................................................................................39

10.1 Errors from processor 2 ....................................................................................................................................39

10.2 Error from the basic system (0x01 to 0x3F) ................................................................................................39

10.3 Error from the extended functions (0x40 to 0x9F) .............................................................................................40

10.4 Error from the application (from 0xA0) ..............................................................................................................41

11 Display unit ....................................................................................................................................................... 43

11.1 Overview display modes ...................................................................................................................................43

11.2 Key assignment MPA 5111 and MPA 5112 .......................................................................................................44

11.4 Operational status display MPA5111 ................................................................................................................45

11.6 Error display ......................................................................................................................................................46

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11.7 Information display ............................................................................................................................................47

11.8 Service display ..................................................................................................................................................48

11.9 Parameterisation display ...................................................................................................................................49

11.9 Parameterisation display ...................................................................................................................................50

11.10 Reset display ..................................................................................................................................................51

11.11 Error memory display ......................................................................................................................................53

11.12 Password entry parameter record stick ...........................................................................................................54

12 VisionBox ...........................................................................................................................................................55

13 Flame detector...................................................................................................................................................56

14 Stepped motor ...................................................................................................................................................57

14.1 Overview of the possible stepped motor types ..................................................................................................57

14.2 Reference point "Standard" ...............................................................................................................................57

14.3 Reference point "Exchanged" ...........................................................................................................................57

14.4 Mathematical angle positions............................................................................................................................58

14.5 Wiring diagram SAD15Power supply ................................................................................................................59

14.6 Power supply of the stepped motors .................................................................................................................60

15 Time diagram ............................................................................................................................................... 62-63

Appendix

Appendix A Versions and variants Appendix B Parameter overview

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1 Short description

Microprocessor-controlled burner control system for intermittent operation or continuous operation for controlling and monitoring pneumatically modulating fan-assisted gas burners with speedregulated or controlled fan and power controller input.

Extension modules for:

• analogue inputs/outputs

• Stepped motor

• Continuous operation

2 Accessories

• MPA-Extension module / Parameter record-Stick

• Flame monitoring system

• Display unit

• VisionBox

3 Classication according to EN298

According to the programming, the

following classications are possible:

• FBLLBB

• FBCLBB

• FMLLBB

• FMCLBB

4 Approvals

EC-type examination certicate

according to EC-gas appliances directive

CE number: CE 0085 BT 0056

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5. Technical data

5.1 General information

Rated voltage 230 V AC -15 % ... +10 % Frequency 50 ... 60 Hz Fuse MPA 5111 6.3 A slow-blow fuse or 10 A fast-blow fuse, integrated,

exchangeable Type of protection IP 20 Ambient temperature 0 °C +60 °C Humidity DIN 60730-1, no dewing admissible Electrical connection Correct phase sequence and protective earth conductor according to the wiring dia-

gram Mounting position as desired Dimensions approx. 200 x 105 x 115 mm

The admissible cable length to the display is max. 3 m

The admissible cable length to the stepped motor is max. 3 m

5.2 Outputs

Designation Safety-

Type of output Electrical data MPA

5111

Extension Module

Additional valve Y1 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ● Valve Y2 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ● Valve Y3 ● Relay contact 230 V AC / 2 A (∑ < 5 A) ● Spark generator ● Relay contact 230 V AC / 3 A (∑ < 5 A) ● Fan Relay contact 230 V AC / 4 A ● PWM 1 (for ex.

PWM 24-31 V DC / 4 kHz ●

fan) Fused mains

Main volltage 230 V AC / 4 A _ ●

power supply Operation display Internally via V2 230 V AC / 1 A (∑ < 5 A) ● Fault output Relay contact 230 V AC / 1 A ● Supply

ame detector

PWM 2 (e.g. 0...10 V)

Internally via fan

for example analogue

230 V AC / 0.1 A ●

for example 0...10 V _ ●

output

PWM 3 (e.g. 4...20 mA)

for example analogue

for example 4...20 mA _ ●

output Stepped motor Plug ● Display Plug ● TWI communica-

Plug ● tion

Cable length max. 10 m

The sum of the currents of all safety-related consumers must not exceed 5 A!

The sum of the currents of all consumers must not exceed 6.3 A (10 A)

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5.3 Inputs

Designation Safety-

Flame

● Ionisation Threshold value: approx.

detector Air pressure

●

switch Gas pressure

●

detector Gas pressure

● Switching con-

detector VPS

Safety chain ● Temperature

controller Power controller

+/-

Fan speed

Exchangeable backup fuse

Remote unlocking Analogue set-

point

Type of input Electrical data MPA

Extension Module

5111

●

1.2 µA

Switching contact

24V DC / 10 mA ●

(potential-free) Switching contact

24V DC / 10 mA ●

(potential-free)

24V DC / 10 mA ●

tact (potentialfree)

Switching contact Switching contact

Switching contact

230V AC / max. 10 A ●

230V AC ●

Hall sensor 24V DC ●

Fuse 6.3 A slow-blow or 10 A

●

fast-blow

Switching contact

230V AC ●

Plug ●

Cable length max. 10 m

5.4 Extension module

equipped with analogue inputs and outputs (e.g. MPA-EM1/3):

Analogue outputs

0/2...10 V, load >= 2 kilo ohms 0/4...20 mA, load <= 500 kilo ohms

(Attention! The output must not connected to GND!)

Analogue input

0/2...10 V, Imax = 0.5 mA

0/4...20 mA, apparent ohmic resistance R <= 500 kilo ohms

The inputs and outputs are NOT electrically isolated from the mains!

Integrated function MPA-EM1/1 MPA-EM1/2 MPA-EM1/3 MPA-EM1/4

Display ● ● ● ● TWI ● ● ● ● Parameter record-stick - ● ● ●

0...10 V input - - ● ●

0...10 V output - - ● ●

4....20 mA input - - ● -

4...20 mA output - - ● Stepped motor output ● ● ● ● {component protection / encapsu-

● ● ● -

lated version} Type of wiring diagram A A A A P18: Operating mode PWM output 0 0 11 8 P27: Modication method Modulation 0,1 0,1 0,1,2,3 0,1, 2 , 3

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6 Connection diagram

Operation

Fault

Fan motor

Spark generator

Safety chain

GDW min.

GDW VPS

Air pressure switch

MPA5111

Controller chain

Mains ~(AC) 230 V

50/60 Hz

Power controller

Remote

Fuse

unlocking 230 V

Fan

Ionisation

Attention! The designations Y1, Y2 and Y3

refer to the slots of the MPA.

Attention!

Output "operation" is internally connected to V2, i.e. it is also active in the states such as valve check.

Attention!

F1 is only necessary if no internal backup fuse is integrated!

variable

Display

Extension module

EMX/Y

TWI

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Wiring diagram for extension module

The extension modules EMX/Y are plug-in printed circuit boards. For the conguration the EM1/1 is the minimum requirement. Old extension modules have a slot for display connection and a slot for PC/laptop connection via VisionBox for system conguration.

Additional connection options are provided in the "variable area".

The functions and pin assignments are dierent depending on the EM variant.

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7 Description of the behaviour

7.1 Unlocking function

If the MPS is locked (state 0), it can be unlocked by pressing the unlock key. In order to distinguish the function from potential EMC interfering impulses, the key must be kept de-

pressed for at least 1/4 second.

The same applies for the 230 V unlocking.

According to DIN EN 14459 (annexe J), the number of possible unlockings are limited to 5 in 15 minutes, that means the automatic system denies further unlockings if the MPA has been unlocked more than 5 times within a short time period. Only after a waiting time during which the MPA is provided with power, it is possible to unlock the MPA again.

The waiting time is 15 minutes or 3 minutes for each unlocking

Extended unlocking

The described limitation to 5 unlockings in 15 minutes can be reset using the "Extended unlocking". To do this, the unlock key must be pressed for at least 5 s (max.. 10 s) (after 5 s, the dis-

play begins to ash).

The "Extended unlocking" is active in all operational states of the MPA,

that means that a safety cut-o with

restart of the MPA in operation can be carried out via the "Extended unlock-

ing" also in the presence of a ame.

230 V unlocking input!

7.2 Access level

Write access to MPA is dened on different access levels. Each parameter is assigned to a certain access level. In order to modify a parameter, MPA must be at the assigned or higher level.

If the access level is not sucient to

modify a parameter, the VisionBox reports it, or a message is output on the MPA display prompting the user to enter the valid password. At higher levels, the users must press a key to

conrm that they are "on site". For this purpose the display is ashing for 30 s

if a key is pressed; otherwise, the MPA remains at the previous level. To change the access level, the correct password must be entered in the

"VisionBox → Settings MPA → Access

level". The access level is automatically reset after 5 hours or after power

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failure. Exception: If the automatic gas

burner performs a restart during these 5 hours, for example due to an error, these 5 hours for the current access level are counted again from the beginning.

NOTE: After completing conguration

of the automatic gas burner it is recommended to reset the access level immediately manually (display) by

means of the shortcut - and ←, setting

"E1" (see chapter Display unit).

Level Designa-

tion

Key conrmation

required

1 Dungs yes 2 OEM Ex-

yes

pert 3 OEM yes 4 Service yes 5 Operator no

7.3 Parameter change Parameter types:

1-bit parameter (U1) - setting 0 and 1

(displayed as ON/OFF), no limits

8-bit parameter (U8) - value setting within variable limits 16-bit parameter (U16) - value setting within variable limits.

A parameter can be modied on the

display (see Appendix BMA_display) of MPA or via the VisionBox software on a PC.

In order to change a parameter, the access level assigned to the parameter must be set, see chapter Access level.

The value must be within the variable limits; a value outside these limits is not possible or it is rejected by the MPA. Experts can change the variable up-

per and lower limits, usually it requires

a higher access level than the level assigned to the parameter value. The variable limits may only be changed by means of VisionBox, not on the MPA display. The variable limits are restricted by means of xed limits. The variable limits cannot be changed outside of these limits. These xed limits cannot be changed. There are parameters which cannot be changed during normal operation, see Appendix Parameter table. To change these parameters it is necessary to switch to the state "Waiting for heat re-

quest".

The parameter stick (extension module) monitors selected parameters during start-up (see 8.11)

7.4 Special operating modes

7.4.1 Operation without valve check system

If the valve check during start-up (P40) and the valve check after a regular switch-o (P41) are inactive, a simultaneously activated double gas valve can also be used instead of two individual gas valves. This double valve must be activated using the valve output V2 of the MPA since V1 opens before the safety time for the start-up has elapsed! Note: Even if P46 is "active", the input GDWVPS is still monitored!

7.4.2 Operation with valve check system

If the valve check is active during startup (P40), it will be carried out during

each start-up. The time required for

the valve check is not included in the Adjustable pre-aeration time (P60 and P61) and, therefore, it can be reduced. If the valve check after a regular

switch-o (P41) is active, it will be carried out after every regular switch-o.

Additionally, a valve check during start-up is carried out if the valve check

after the last regular switch-o has not

been successful, if the automatic sys-

tem has been switched o by a safety

shutdown or if a power failure has oc-

curred since the last switch-o.

If the valve tightness test has been completed successfully and P41 is inactive, the tightness test and the state "Pre-aeration B" are skipped during the next start-up (see section "Operation with reduced pre-aeration time").

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For a correct evaluation of the tests carried out, the parameters P40 to P46 must be correctly calculated and set.

pe * VP * In (pe / (pe - pS1))

= ------------------------------- * 3600 s/h * S

test V1

* Q

atm

pe * VP * In (pe / pS2)

= ------------------------------- * 3600 s/h * S

test V2

P43

P45

= t = t

test V1

test V2

* Q

atm

* 16/s * 16/s

Formula to calculate the test times for V1 and V2:

test V1

test V2

P43

P45

[s] Test time for V1 [s] Test time for V2 [ ] to be entered in P43 [ ] to be entered in P45 [mbar] Gas inlet pressure [mbar] Increasing switching pressure

(set pressure at the controller +15 %

+ switching dierence)

[mbar] Falling switching pressure

(set pressure at the controller -15 %)

atm

[mbar] Atmospheric pressure = 1013

mbars

[dm3] Test volume between the valves to

be monitored

[dm3/h] Admissible leakage rate according

to EN1643. The leakage rate corresponds to

0.1 % of the burner's gas consumption at maximum burner load, but at least 50 dm3/h. A limit value of 200 dm3/h is recommended by DUNGS!

S [ ] Safety factor, DUNGS recom-

mends triple safety

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Example

A DMV-D(LE) 525/11 with 20 mbars

inlet pressure is used. In this application, the admissible leakage rate according to EN1643 is3 / h. The gas pressure detector is set to 10 mbars.

20 mbar * 0.44 dm3 * In (20 mbar / (20 mbar - 12.5 mbar))

= ------------------------------------------------------------------------ * 3600 s/h * 3 = 1.84 s

test V1

P43

1013 mbar * 50 dm3 / h

= 1.84 s * 16/s = 29.5

To be entered in P43: 30 or more (corresponds to 1.88 s)

20 mbar * 0.44 dm3 * In (20 mbar / 8.5 mbar)

= ------------------------------------------------------------------------ * 3600 s/h * 3 = 1.61 s

test V2

1013 mbar * 50 dm3 / h

pe = 20mbars VP = 0.44 dm3see Test volume table, page 12 QP = 50 dm3 / h (determined according to DIN EN 1643) pS1 = 10mbars + 15 % + 1mbar switching dierence = 12.5 mbars pS2 = 10mbars - 15 % = 8.5 mbars

S = 3 (recommendation DUNGS)

= 1.61 s * 16/s = 25.7

P45

To be entered in P45: 26 or more (corresponds to 1.63 s)

Valve/valves leaking

1. Switch o system

2. Check valve V1 and/or V2 for leakage

3. If leaking, replace valve V1 and/or V2.

Attention! In case of interference suppression, always observe the

application- and country-specic requirements as well.

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Test volume of the DUNGS Multiple actuators MB-D ..., MB-ZR..., MB-VEF..., DMV-...., MBC....

Type Nominal diameter

Test volume

Rp / DN

DMV-D(LE) 503/11 Rp 3/8 0.03 l DMV-D(LE) 507/11 Rp 3/4 0.10 l DMV-D(LE) 512/11 Rp 1 1/4 0.24 l DMV-D(LE) 520/11 Rp 2 0.24 l DMV-D(LE) 525/11 Rp 2 0.44 l DMV-D(LE) 5040/11 DN 40 0.38 l DMV-D(LE) 5050/11 DN 50 0.39 l DMV-D(LE) 5065/11 DN 65 0.69 l DMV-D(LE) 5080/11 DN 80 1.47 l DMV-D(LE) 5100/11 DN 100 2.28 l DMV-D(LE) 5125/11 DN 125 3.56 l

DMV-1500-D Rp 2 0.44 l

DMV-...(DLE) –65 DN 65 1.47 l DMV-...(DLE) –80 DN 80 2.28 l DMV-...(DLE) –100 DN 100 3.55 l MB-D(LE) 403 Rp 3/8 0.04 l MB-D(LE) 405 Rp 1/2 0.11 l MB-D(LE) 407 Rp 3/4 0.11 l MB-D(LE) 410 Rp 1 0.33 l MB-D(LE) 412 Rp 1 1/4 0.33 l MB-D(LE) 415 Rp 1 1/2 0.24 l MB-D(LE) 420 Rp 2 0.24 l MB-ZRD(LE) 405 Rp 1/2 0.11 l MB-ZRD(LE) 407 Rp 3/4 0.11 l MB-ZRD(LE) 410 Rp 1 0.33 l MB-ZRD(LE) 412 Rp 1 1/4 0.33 l MB-ZRD(LE) 415 Rp 1 1/2 0.24 l MB-ZRD(LE) 420 Rp 2 0.24 l

MB-VEF 407 Rp 3/4 0.11 l MB-VEF 412 Rp 1 1/4 0.33 l MB-VEF 415 Rp 1 1/2 0.24 l MB-VEF 420 Rp 2 0.24 l MB-VEF 425 Rp 2 0.44 l MBC 300 Rp 3/4 0.05 l MBC 700 Rp 1 1/4 0.61 l MBC 1200 Rp 2 2.05 l MBC 1900 DN 65 1.47 l MBC 3100 DN 80 2.28 l MBC 5000 DN100 3.55 l

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Determination of the test volumes for DUNGS Single solenoid valves.../5

Nominal diam-

Test volumes = volume V1

output side

+ V2

input side

+ pipeline

eter

Rp / DN

direct 0.5 m 1.0 m 1.5 m 2.0 m

Rp DN Rp DN Rp DN Rp DN Rp DN

Rp 3/8 0.01 l 0.06 l 0.11 l 0.16 l 0.21 l Rp 1/2 0.07 l 0.17 l 0.27 l 0.37 l 0.47 l Rp 3/4 (DN 20) 0.12 l 0.27 l 0.42 l 0.57 l 0.72 l

Rp 1 (DN 25) 0.20 l 0.45 l 0.70 l 0.95 l 1.20 l

Rp 1 1/2 / DN 40 0.50 l 0.7 l 1.10 l 1.35 l 1.70 l 2.0 l 2.20 l 2.65 l 2.80 l 3.3 l Rp 2 / DN 50 0.90 l 1.2 l 1.90 l 2.2 l 2.90 l 3.2 l 3.90 l 4.2 l 4.90 l 5.5 l

DN 65 2.0 l 3.7 l 5.3 l 7. 0 l 8.6 l DN 80 3.8 l 6.3 l 8.8 l 11. 3 l 13.8 l DN 100 6.5 l 10.5 l 14.4 l 18.4 l 22.3 l DN 125 12.0 l 18.2 l 24.3 l 30.5 l 36.6 l DN 150 17. 5 l 26.5 l 35.2 l 4 4.1 l 52.9 l DN 200 46.0 l 61.7 l 77.4 l 93.1 l 108.9 l

Typical values for the leakage rate

DN Test volume [litres]

direct / 2 m

~ Burner capacity [kWh adm. leakage rate

[dm3 / h]

0.1 % of the burner

capacity or 50 dm3 / h

5 mbars 30 mbars

20 0.12 / 0.72 110 240 50 25 0.20 / 1.20 170 370 50 40 0.50 / 3.30 310 710 50 -71 50 0.90 / 5.20 500 1100 50 -110 65 2.00 / 8.60 910 2000 91-200

80 3.80 / 13.8 1250 2900 125-290 100 6.50 / 20.0 2050 4600 205-460 125 12.5 / 20.0 3500 7700 350-770

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7.4.3 Operation with reduced preaeration time

Under specic circumstances, the

MPA can be started with a reduced pre-aeration time. For doing this, the valve tightness test after a regular switch-o (P41) must have been successful. Settings for the operation without reduced pre-aeration: a) Pre-aeration time A (P60): desired

duration of the pre-aeration

b) Pre-aeration time B (P61): 0 (= is

never carried out)

7.4.4 Operation with ignition gas ame

Basically, the MPA can be used for the operation with ignition gas

ame.

Attention!

There is only one input for ame

monitoring (ionisation).

Setting for the operation with reduced pre-aeration time: a) Pre-aeration time A (P60): 0 or

pre-aeration time that is always

required

b) Pre-aeration time B (P61): desired

duration of pre-aeration if the valve tightness test was NOT nished successfully. This duration is ignored if the valve tightness test was successful after the last

regular switch-o (duration 0)!

additional

V Zusatz

The common pre-valve must be connected to V1. The ignition gas valve is connected to the output V2 of the

MPA and the main gas ame to the freely congurable additional valve

output.

7.5 Special setting options

7.5.1 Dierent types of the air pressure detector monitoring

See section 8 "Parameter description" - P14.

GDW VPS

Attention!

The additional valve output must be

congured according to the desired

behaviour, that means that the moment for opening (P50 and P52) and closing (P51 and P53) must be de-

ned via the respective parameters.

It is useful to open the main gas valve

7.5.2 Dierent types of the temperature controller default or heat request

See section 8 "Parameter description" - P15.

7.5.3 Dierent types of the modulation degree default

See section 8.7 "Parameter description" - P72.

Main gas

Hauptgas

Ignition gas

Zündgas

shortly after the state has switched to the stabilisation time B. So the ignition gas ame can be stabilised during the stabilisation time A, then, after the state has switched to the stabilisation time B, the fan power can be increased and, with a delay of a few seconds (P52), the main gas valve can be opened (for ex. if 50% of the typical duration time to reach the new fan power has been elapsed).

7.5.4 Waiting program with open safety chain or lack of gas on the

GDWVPS

See section 7.5 State 36: "Waiting program".

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7.6 State description

MPA 5111

State xx Designation Description

00 Error or initialisation The automatic control system is in the initialisation phase

(e.g. reference run of the stepped motor) or an error is active. If an error is active, the display shows an error message and indicates the current fault (e.g. "F 11") instead of the state number 00.

01 Waiting for heat request The automatic control system is ready for operation but

there is no heat request.

02 Adjustment parameter

record to stick

If the function parameter record stick (P10) is active, the adapted parameter record is compared to the settings in the MPA and, if necessary, the data are copied to the MPA after a password has been entered. If necessary, the password must be entered via the display. For this, a small "c"

ashes.

03 Idle state control fan and stepped

motor

The system waits until the fan and the stepped motor are in the OFF position If the fan has not completely stopped

after at least 2 minutes and/or the stepped motor has not yet reached its position, the MPA is switched o and a re-

spective error message is displayed.

04 Idle state control LDW

(air pressure detector)

Depending on the operating mode of the air pressure detector (P14), it is checked if the air pressure detector reports "no air pressure"..

05 Watchdog loading phase The safety-related watchdog -circuit is activated. 06 Startup fan and stepped motor The system waits until the stepped motor has moved to its

nominal pre-aeration position and the fan has reached its nominal pre-aeration speed.

Attention! The fan control does not check the feedback of the fan!

07 Waiting for air pressure Depending on the operating mode of the air pressure de-

tector (P14), the system waits until the air pressure detector indicates the air pressure.

08 VPS A - Decision In this state the decision is made if a valve test during star-

tup must be carried out. See also section 7.3.2 Operation with valve testing system. If no valve test must be carried out, the state "Pre-aeration A" is activated.

This state lasts only 1/16 of a second.

09 VPS A - Empty the area between

the valves

V2 is opened (P42) in order to empty the area between the valves and to compensate the possibly existing gas pressure.

10 VPS A - Test time V1 In the dened test time (P43), no gas pressure may be built

up in the area between the valves otherwise the valve 1 is considered as "leaking".

11 VPS A - Fill the area between the

valves

V1 is opened (P44) in order to ll the area between the

valves with gas pressure.

12 VPS A - Gas pressure detection This states lasts only one-eighth of a second and serves

for the monitoring of the gas pressure detector GDWVPS.

13 VPS A - Test time V2 The gas pressure may not drop within the dened test time

(P45) otherwise the valve 2 is considered as "leaking".

Note: When the MPA with ignition gas ame is used, also the additional valve (= main gas ame) may be leaky al-

though the error message refers to V2.

14 Pre-aeration A This state provides a sucient pre-aeration. The dened

duration (P60) is observed for every startup.

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7.6 State description

MPA 5111

State xx Designation Description

15 Pre-aeration B This time is a second pre-aeration time.

Contrary to the "Pre-aeration A" state, this state is skipped

if the last switch-o of the MPA was a regular switch-o

with successful valve tightness test. Moreover, no power

failure must have been occurred since the last switch-o.

This state can be used, for example, to realise a "Reduced

pre-aeration" whose duration (P61) is dened in the state

"Pre-aeration B" and the duration of the "Pre-aeration A"

(P60) is set to 0 seconds or to the minimum required pre-

aeration time. Please observe: The actual pre-aeration time increases by the time for the valve tightness tests (P40 to P45) in the startup phase, if they are activated.

See also section 7.2.3 "Operation with reduced pre-aeration".

16 Ignition position The MPA moves to the special modulation point "Ignition

position".

This state lasts as long as the stepped motor has reached its new position and the fan works with the set speed. The fan monitoring of the MPA waits until the fan has swung into the regular operation (detection of upper and lower limit in the tolerance range).

17 Gas detection GDWVPS The valve 1 is opened so that a gas pressure can be built

up between the valves and the GDWVPS can detect a gas pressure (P62). If both types of valve test (startup P40 and switch-o P41) are deactivated, the GDWVPS is not monitored! A bridge is not necessary.

18 Pre-ignition The ignition is already activated here (P63) without open-

ing valve 2. The valve output 1 is already active!

19 SZA - Ignition During this period (P64), the ignition remains active and

valve 2 is open. The gas can ow now and a ame can be

generated.

This state is 0.5 seconds shorter than the time set in P64 because the safety time for startup is divided in state 19 and 20!

20 SZA - Flame detection The ignition is deactivated 0.5 seconds before the end

of the safety time for startup (P64) and the procedure for

ame detection (ionisation input) is started.

If an ionisation current is detected, the MPA reports a

ame.

21 Stabilisation ame A The ame can be stabilised with the help of a congurable

special modulation point. The duration of the stabilisation

phase (P65) can be congured.

22 Stabilisation ame B Another special modulation point can be dened for this

stabilisation phase (P66). When using the MPA with pilot

burner, this state can be used to activate the main ame. The main gas valve (=additional valve) can be activated af-

ter an adjustable time (P50 and P52) after the changeover to the state.

See also section 7.4.4 Operation with ignition gas ame

23 Changeover to the standard mode The MPA leaves the current special modulation point and

moves to the start simulation point of the standard mode (P67).

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Page 18

7.6 State description

MPA 5111

State xx Designation Description

24 Standard mode In this mode, the MPA can be modulated via several types

(see P70 to P76, especially P72).

A voluntary switch-o after a dened time can be activated

(P70). If this time is set to a maximum of 23 hours and 59 minutes, the MPA is in the intermittent mode. Continuous operation (≥ 24 h) is only possible using acontinuous operation stick, see section 8.11

25 Changeover after regular switch-oThis state can be used to dene the modulation degree

after a regular switch-o (see also P80 and P81).

Possible application: In order to avoid a switch-o when

the system is under full load, this state can be used to

reduce (or increase) the power to a dened value.

26 VPS B - Decision In this state the decision is made if a valve test must be

carried out. See Operation with valve testing system.

This state lasts only 1/16 of a second.

27 VPS B - Empty the area between

the valves

V2 remains open (P42) in order to empty the area between the valves and to compensate the possibly existing gas pressure.

28 VPS B - Test time V1 In the dened test time (P43), no gas pressure may be built

up in the area between the valves otherwise the valve 1 is considered as "leaking".

29 VPS B - Fill

the area between the valves

V1 is opened (P44) in order to ll the area between the

valves with gas pressure.

30 VPS B - Gas pressure detection This states lasts only one-eighth of a second and serves

for the monitoring of the gas pressure detector GDWVPS.

31 VPS B - Test time V2 The gas pressure may not drop within the dened test time

(P45) otherwise the valve 2 is considered as "leaking".

Note: When the MPA with ignition gas ame is used, also the additional valve (= main gas ame) may be leaky al-

though the error message refers to V2.

32 Follow-up time During this time (P82), a ame signal may be present from

the previous mode caused by e.g. existing residual gas in the combustion chamber. The external light monitoring is only started in the following state.

33 Post-aeration In this state, the post-aeration of the combustion chamber

is carried out (P83).

17 … 68

In this state, no ame must be detected. Since the duration of the state with the setting P83=0 is only a few milli-

seconds, the MPA reacts also to external light if "no" post-

aeration is congured.

34 Restart protection In this state, the temperature controller is not evaluated,

that means if another heat request is sent or activated, the

automatic is not restarted.

35 Lack of gas GDWMIN If the input GDWMIN of the automatic system is not closed,

the automatic system waits in this state until the gas pressure is detected.

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7.6 State description

MPA 5111

State xx Designation Description

36 Waiting program The MPA switches to this state if a lack of gas on the GD-

WVPS (depending on P46) or an open safety chain has been detected during startup.

The MPA remains in this state for a certain waiting time and then carries out another restart test. The number of

restart tests is congurable (P90).

The waiting time duration depends on the number of wait-

ing times that have been executed before. The rst time,

the waiting time is 2 minutes, the second time 5 minutes and the third time 1 hour and afterwards a time duration

dened by a parameter is applied. If the waiting time dened by a parameter (P91) is shorter than the rmly dened times of the rst 3 restart tests, these are also reduced to the parameter-dened time.

The respective waiting time can be interrupted by setting the temperature controller to OFF (OFF depends on the operating mode in P15!).

The waiting program start from the beginning if the automatic system a) has been separated from the mains, b) has been unlocked or c) has reached the standard mode after a restart test.

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8 Parameters

8.1 P1x General parameters

Parameter

Designation Description Setting / Examples

P1x

P10 Parameter stick: ac-

tive

P11 Restart

attempts

P12 Restart

attempts due to a missing ame

P13 Restart

attempts after the ame has gone out

Indicates if the parameter record stick is to be checked or copied, if necessary, during the restart phase. See also section 8.11 Stick for parameter record and continuous run.

Here you can set the number of restart attempts the MPA is allowed to be carried out before the fault switch-

o is activated (state "Error").

The anti-oscillation counter is reset to this value as soon as the MPA has reached the state "Standard mode" or the MPA has been unlocked. The number of restarts is internally counted by means of the anti-oscillation counter.

The number of restart attempts (P11) can be limited here for the

special case that no ame has been

generated during the safety time. For this purpose, the restart counter is internally implemented. The anti-oscillation counter as well as the restart counter are activated!

The number of restart attempts (P11) can be limited here for the

special case that a ame has gone

out. For this purpose, also the restart counter is internally used. The antioscillation counter as well as the restart counter are activated!

Setting 0: Parameter stick deactivated

Setting 1: Parameter stick active

Example:

P11 = 5, P12 = 1 During the rst start phase, no ame is generated → 1. Restart attempt → Error idle state control LDW → 2. Restart attempt → Error idle state LDW 3. Restart attempt After the third restart attempt LDW OK, there is still no ame Automatic

burner control is locked. Example:

P11 = 5, P13 = 1

Flame gone out during operation

1. Restart attempt Error Idle state

control LDW 2. Restart attempt Error Idle state control LDW 3. Restart attempt No ame is gener-

ated after the third restart attempt

LDW OK Automatic burner control

is unlocked.

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8 Parameters

8.1 P1x General parameters

Parameter

Designation Description Setting / Examples

P1x

P14 Operating mode LDW The LDW (air pressure detector)

must be activated! It must be set in a way to guarantee an activation also if there is only a minimum power.

Basically, DUNGS recommends to use the operating mode 0. Exceptions can partly be accepted. The LDW can be operated in 4 operating modes.

Setting 0: The LDW is active and is monitored.

Setting 1: No idle state control is carried out.

Otherwise, the LDW is permanently active. Attention! Ifthe LDW is

jammed or if there is a wire bridge there will be no error message during the startup phase!

Setting 2:

The LDW is monitored only during

startup, that means only to the state "Waiting for air pressure". In the fol-

lowing state, an LDW which is not

active does NOT result in an error message.

Setting 3:

The LDW is monitored during the

startup phase if the current modulation degree is higher than the start modulation degree in the standard mode. That means that, in case of

small modulations, the LDW can switch-o without generating the

error message "No air pressure" and deactivating the MPA. Moreover, the LDW is not monitored after the pre-aeration until the standard mode is reached and, in

case of a regular switch-o, it is not

monitored until the post-aeration is reached. Attention! This operating mode is only allowed, if the fan is controlled (internal plausibility check of the feedback signals).

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8 Parameters

8.1 P1x General parameters

Parameter

Designation Description Setting / Examples

P1x

P15 Operating mode

Temperature controller

The temperature controller can be operated in the following operating modes:

Setting 0: The temperature controller is always switched OFF, independently of the hardware input

Setting 1: The temperature controller is always switched ON, independently of the hardware input

Setting 2: The temperature controller is OFF, however, this operating mode must

be dened again within one minute.

Otherwise the automatic burner control switches to the setting 3. This can happen, for example, if the communication is interrupted.

Setting 3: The temperature controller is assigned to the hardware input "Temperature controller".

P16 Parameter record:

Customer ID

Internal setting (cannot be changed)

4...255: These values are used for the time monitoring for the setting 2, that means that, if the parameter P15

is congured to the setting 2, the

MPA changes this setting to values between 4 and 255 and reaches the setting 3 after 1 minute (cyclical decrementation).

This parameter indicates the cus-

tomer ID dened in the parameter

record stick. This allows to assign a parameter record to a customer.

0 means "No parameter record found" or "Startup (state 2) not yet carried out".

The parameters P16 and P17 are read and updated during each startup (state 2). If no parameter stick was found, this value is 0. The value is also 0 if no startup has been carried out since the last processor start, that means if the automatic burner control never has reached the state 2. This applies also for a processor start, for ex. after a safe-

ty switch-o!

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8 Parameters

8.1 P1x General parameters

Parameter

Designation Description Setting / Examples

P1x

P17 Parameter record:

Record ID

P18 Operating mode

PWM outputs

This parameter indicates the

record ID dened in the parameter

record stick. This allows to distinguish several parameter record versions of a customer.

0 means "No parameter record found" or "Startup (state 2) not yet carried out".

The behaviour is the same as described in P16.

Using this parameter, the behaviour of the outputs PWM2 and PWM3 can be changed in order to, for ex., activate analogue outputs correctly.

The external function activated by

PWM2 and PWM3 are dened by

the plugged-in extension module which allows to activate each of the two outputs by a digital signal

(PWM for fan, frequency converter,

...) or by an analogue signal with

0...10 V or 4...20 mA.

The correct setting for P18 is indicated in the following table

Setting P18 Conguration PWM2 as: Conguration PWM3 as:

0 OFF OFF 1 OFF PWM signal 2 OFF Analogue 0...10 V 3 OFF Analogue 4...20 mA 4 PWM signal OFF 5 PWM signal PWM signal 6 PWM signal Analogue 0...10 V 7 PWM signal Analogue 4...20 mA 8 Analogue 0...10 V OFF

9 Analogue 0...10 V PWM signal

10 Analogue 0...10 V Analogue 0....10 V

11 Analogue 0...10 V Analogue 4....20 mA

12 Analogue 4...20 mA OFF 13 Analogue 4...20 mA PWM signal 14 Analogue 4...20 mA Analogue 0...10 V 15 Analogue 4...20 mA Analogue 4...20 mA

P18 Example: The extension mod-

ule MPA-EM1/3 is equipped with a

conversion from PWM2 to 0...10 V and with a conversion from PWM3 to

4...20 mA. The correct setting results from:

P18 = 11 ( for MPA-EM1/3)

P18 Note

If the conguration "4...20 mA" is

selected for a voltage output, this corresponds to a voltage output of

2...10 V.

If the conguration "0...10 V" is

selected for a current output, this corresponds to a current output of

0...20 mA.

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Page 24

8.2 P2x - Fan

The MPA51 controls the fan by means of PWM signal and evaluates a hall sensor signal delivered by the fan in form of a rotation speed. The number of feedback pulses per

rotations has to be indicated in P24. In case of wrong values in P24, the MPA calculates a wrong rotation speed! The MPA can control or regulate the fan (PI controller).

8 Parameters

8.2 P2x Fan

Parameter

Designation Description Setting

P2x

P20 Fan: Control Indicates if the fan is controlled

or regulated. For the regulation, a feedback signal to record the fan

speed is required!

P21 Fan: Delay / ramp a) For fan control:

This parameter is used to smoothen jumps of the fan activation signal (PWM signal).

b) For fan regulation: The desired fan behaviour can be reached by means of the KP and TN factors. However, jumps in the setpoint values for the fan can be slowed down via the ramp delay function.

Setting 0: Control Setting 1: Regulation

Setting 0 means that even big jumps are immediately transformed. The bigger the set value the slower the PWM signal is adapted to its new nominal value in case of changes.

The value of the parameter should be set to 0.

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8 Parameters

8.2 P2x Fan

Parameter

Designation Description Setting

P2x

P22 Fan: KP factor a) For fan control:

This factor is only relevant if the fan is controlled!

b) For fan regulation:

The Kp factor denes the eect of the dierence between nominal

value and actual value on the regulating value.

Kp is no proportional factor:

• small Kp values result in a slow

adaptation to the nominal value.

• big Kp values result in a fast regulation, but can also create an overshooting

Always observe the interaction between the P and I part, that means that a separate consideration of Kp and Tn is not possible!

P23 Fan: TN factor a) For fan control:

This factor is only relevant if the fan is controlled!

P24 Fan: Pulses per rota-

tion

b) For fan regulation:

The Tn factor denes the eect of

the history, that means the accu-

mulated dierence between the

nominal and the actual value (integration), to the regulating value.

Tn is a division factor:

• small Tn values result in a fast but

more instable regulation. Resonance and swinging-up systems

are the possible eects of wrong

values.

• big Tn factors stabilise the system.

Always observe the interaction between the P and I part, that means that a separateconsideration of Kp and Tn is not possible!

a) For fan control: This value is only relevant if the fan speed is to be recorded! The

recording has no inuence on the

behaviour of the MPA.

b) For fan regulation: The number of impulses per rotation provided by the fan must be set here. If an incorrect value is indicated, the determined speed is incorrectly calculated.

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8 Parameters

8.2 P2x Fan

Parameter

Designation Description Setting

P2x

P25 Fan: allowed toler-

ance

a) For fan control: not relevant b) For fan regulation: Here the allowed deviation between the fan speed and the current nomi-

nal speed is dened. If the speed

has been outside this tolerance range for a longer time period, the

MPA is switched o.

P26 Fan: Min. speed. a) For fan control:

The minimum PWM activation

can be dened. If this value is not

reached, the fan does not work correctly. Typically, a fan only works properly if the PWM signal reaches approx. 10 to 20 %. If this value is not reached, the fan begins to oscillate or does not work.

If a fan activation lower than this value is calculated due to the settings in the curve segment, the

MPA is switched o displaying a

corresponding error message.

Attention! There is no direct relation to the speed at a modulation degree of 100 %!

b) For fan regulation: A minimum speed can also be entered here If this value is not reached during the calculations from the curve segment, the MPA creates a corresponding error message.

Attention! There is no direct relation to the speed at a modulation degree of 0 %!

P27 Fan: Max. speed a) For fan control:

This parameter should be set to 100 %. If another value is entered here,

this will inuence the programmed

values in the curve segment!

b) For fan regulation: Here, the maximum speed of the fan must be entered. A fan reaches the maximum speed if it is activated

with 100% PWM and the air ow is

blocked.

25 … 68

Attention! There is no direct relation to the speed at a modulation degree of 100 %! (apply for adjustment a) and b))

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8 Parameters

8.3 P3x Stepped motor

Parameter

Designation Description Setting

P3x

P30 Stepped motor:

Selection Stepped motor type

Type

Possible types:

Parameter value Conguration PWM2 as: Conguration PWM3 as:

0 No stepped motor – 1 reserved – 2 SAD 1.2 or SAD 3.0 (IP54) Standard / delivery position 3 SAD 1.2 or SAD 3.0 (IP54) "changed" reference point 4 SAD 1.5 or SAD 3.0 (IP40) *1 Standard / delivery position 5 SAD 1.5 or SAD 3.0 (IP40) *1 "changed" reference point 6 SAD 15 Standard / delivery position 7 SAD 15 "changed" reference point 8 SAD 1.2 WG (Q3) or SAD 3.0 WG (Q3) Standard / delivery position

9 SAD 1.2 WG (Q3) or SAD 3.0 WG (Q3) "changed" reference point 10 SAD 10 WG (Q3) Standard / delivery position 11 SAD 10 WG (Q3) "changed" reference point

Attention!

A stepped motor must only be connected to the MPA or separated from the MPA if it is disconnected from the mains. The change of this parameter only

becomes eective after a restart of

the MPA. The MPA can be restarted by interrupting the power supply or by means of the "Extended unlocking" (press the unlock key for 5 seconds).

If this parameter is programmed for

a specic stepped motor type, this

stepped motor must be connected.

An incorrect conguration of this

parameter can lead to an overspeed-

ing which may destroy the incorrectly

congured stepped motor!

If the selected stepped motor is not found, it is not possible to change the stepped motor via the display of the MPA51xx. But there is the possibility to correct the parameters using the VisionBox.

Further information can be found in the annex 13: "Stepped motors".

*1 Attention! The stepped motors SAD 1.5 and SAD 3.0 with IP40 have another step width. If the nominal value is 90° (VisionBox), these stepped motors have an actual angle of 93.37°, that means that all angle indications referring to nominal and current position must be converted to the actual position using the factor 0.963957. Vice versa, the factor 1.03739 is applicable.

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8 Parameters

8.3 P3x Stepped motor

Parameter

Designation Description Setting

P3x

P31 Stepped motor:

allowed tolerance

This value denes the highest allowed deviation between the nominal value and the actual value of the determined stepped motor without

activating a safety switch-o

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8 Parameters

8.4 P4x - VPS

Parameter

Designation Description Setting

P4x

P40 VPS: active during

startup

Setting 0: The valve test is not always carried out during startup (depending on P41)

Setting 1: The valve test is carried out in each startup phase

P41 VPS: active after

switch-o

Setting 0: The valve test is never carried out after a regular switch-

o

Setting 1: The valve test is carried

out after every switch-o and, if

necessary, in the startup phase (see section "Operation with valve testing system")

P42 VPS: Duration Emp-

tying area between

valves

Indicates how long V2 will be opened in order to let the possible overpressure escape into the combustion chamber.

P42 VPS: Test time V1 Indicates the duration of the test in

order to nd out whether a pressure

is being built up in the area between the valves.

P44 VPS: Duration Filling

area between valves

Indicates how long V1 will be

opened in order to let gas ow into

the area between the valves.

P45 VPS: Test time V2 Indicates the duration of the test in

order to nd out whether gas escapes from the area between the valves.

P46 VPS: GDWVPS as

minimum monitoring

The GDWVPS input can also be used for the monitoring of the minimum gas pressure. For doing this, this parameter must be set to "Active". If this value is inactive, the GDWVPS input is only evaluated during the valve test.

For the calculation of these parameters or for the settings recommended by DUNGS, see 7.4.2 Operation with valve testing system.

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8 Parameters

8.5 P5x - Additional valve

Parameter

Designation Description Setting

P5x

P50 Additional valve:

Activation state

P51 Additional valve: De-

activation state

P52 Additional valve:

Time-delayed activation

P53 Additional valve:

Time-delayed deactivation

In the state dened here, the output

of the additional valve is activated. Attention! The actual activation can take place with a delay in time! See also P52.

In the state dened here, the output

of the additional valve is deactivated. Attention! The actual deactivation can take place with a delay in time! See also P53.

Using this parameter, the time-

delayed activation is dened, that

means that the additional valve is switched on a set time period after

the activation of the state dened in

P50. Attention! If the duration of the

state is shorter than the dened

delay, the additional valve is only activated with the start of the sub-

sequent state. For example, if the

state "Pre-aeration A" is set with a delay in time of 40 seconds (P50 and P52), the pre-aeration time A, however, (P60) lasts only 30 seconds, the additional valve is already activated after 30 seconds when the next state is started (e.g. "pre-aeration B) and not 40 seconds after the start of the state "pre-aeration A".

Same function as P52, but with a

delay in time for the switch-o key.

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8 Parameters

8.6 P6x - Startup

Parameter

Designation Description Setting

P6x

P60 Pre-aeration time A Denes the duration of the pre-aer-

ation A. For the dierence between

pre-aeration A and B, see section "Operation with reduced pre-aeration"

P61 Pre-aeration time B Denes the duration of the pre-aer-

ation B. For the dierence between

pre-aeration A and B, see section "Operation with reduced pre-aeration"

P62 Duration gas detec-

tion startup phase

Denes the duration of the gas

detection GDWVPS in the section

7.5 State 17: "Gas detection GDWVPS" Here, the valve 1 is opened in order

to let gas ow into the area between

the valves. The GDWVPS must detect a gas pressure at the end of the state otherwise V2 is not opened due to a lack of gas and the MPA switches to the waiting program (see state 36: "Waiting program").

If both types of valve test are deactivated, the GDWVPS is not evaluated and the time duration can be set to 0!

P63 Pre-ignition time Denes the duration of a pre-igni-

tion.

P64 Safety time for star-

tup phase

Denes the duration of the safety

time for startup phase (SZA). Attention! This duration is divided in the two states "SZA ignition" and

"SZA ame detection" while the state "SZA ame detection has al-

ways a duration of 0.5 seconds

P65 Stabilisation time A Denes the duration of the stabi-

lisation time A. For the dierence

between stabilisation time A and B, see section 7.2.4 "Operation with

ignition gas ame.SDSq

P66 Stabilisation time B Denes the duration of the stabi-

lisation time B. For the dierence

between stabilisation time A and B, see section 7.2.4 "Operation with

ignition gas ame.SDSq

P67 Start modulation de-

gree Standard mode

Indicates the modulation degree that the automatic burner control should adopt in the standard mode

after the creation of the ame and

after the stabilisation times A and B have elapsed.

As soon as the standard mode has been reached, there are several

options to modiy the modulation

degree (P72).

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Page 32

8 Parameters

8.7 P7x - Operation

Parameter

Designation Description Setting

P7x

P70 Duration Standard

mode

P71 Modulation degree:

new nominal value

P72 Modulation degree:

Type of modication

Here you can dene whether the

automatic burner control should

carry out a voluntary switch-o. If yes, dene the operating time (in

minutes)

This value can be used to dene a

new modulation degree. As soon as the automatic burner control has recognised a new value, this param-

eter is reset to 0xFFFF (=65535). Denes the type of modulation de-

gree that is predened for the op-

eration:

Typical settings:

0xFFFF = 65535 Continuous operation / no switch-o. 1439 = 23h 59 min intermittent op-

eration.

Also other values are possible, e.g.

60 = switch-o after 1 hour. Continuous operation (≥ 24 h) is

only possible using acontinuous operation stick, see section 8.11

Setting 0: Externally, that means only by means of one of the communication interfaces to a new absolute value

*1: The analog value is accepted as soon as the detected modication is > 5 % of the nal value (e.g. > 1 mA at 4...20 mA). Modications < 5 %

are accepted only after a certain time (see P74).

Modications between 0% and

+0.5% are considered as "Noise" and are eliminated.

Setting 1: Plus / Minus, that means

via a communication interface to an absolute value or upwards (plus) or downwards (minus) relative to the currently set modulation degree via the two corresponding hardware inputs.

Setting 2: By means of a suitable extension module via an analogue

input to an analogue predened

absolute value with the full range of values, for example 0 V (0 %) to 10

V (100 %). *1

Setting 3: By means of a suitable extension module via an analogue

input to an analogue predened

absolute value with a limited range of values, for example 4 mA (0 %)

to 20mA (100 %). *1

31 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 33

8 Parameters

8.7 P7x - Operation

Parameter

Designation Description Setting

P7x

P73 Modulation degree:

Step width of the modication

P74 Modulation degree:

Interval Acceptance

of analogue values

Denes the maximum step width of a modulation degree modica-

tion without intermediate control.

a) By means of relative modication via the plus or minus input, the

nominal value is modied upwards or downwards by the value dened in P73. Further modications are

accepted as soon as the fan and the stepped motor work again in the allowed tolerance range (P25 and P31). b) Due to new absolute setpoints, the MPA modies its current modulation degree step by step by the

value dened here until the new

setpoint is reached. After each intermediate step, the automatic burner control waits until the fan and the stepped motor work in the allowed tolerance range (P25 and P31).

Denes the time interval for the

evaluation and acceptance of the analogue input in the operating mode "Modulation degree setpoint via analogue input" (setting 2 and 3 of P72).

P75 Modulation degree:

Lower limit

P76 Modulation degree:

Upper limit

Particularly for the operation with stepped motor, this time interval should not be too short in order to avoid repeated one-step movements forward and backward of the stepped motor.

See also *1 of P72

Denes a lower limit below which

the modulation degree must not fall. Setpoints which fall below this limit are adjusted to the allowed range.

Example: Lower limit = 10 %, new setpoint = 8 % Automatic burner

control corrects the setpoint to 10 %. Denes an upper limit of the modu-

lation degree which must not be exceeded. Setpoints which are outside this limit are adjusted to the allowed range.

Example: Upper limit = 90 %, new setpoint = 97 % Automatic burner

control corrects the setpoint to 90 %.

Printed in Germany • Edition 02.14 • Nr. 254 722

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Page 34

8 Parameters

8.8 P8x - Switch-o

Parameter

Designation Description Setting

P8x

P80 Regular switch-o:

Transition time

P81 Regular switch-o:

Power during transi-

tion

Using this parameter, a transition time can be activated in which the MPA remains after the failure of the

temperature controller / heat request. The ame remains burning.

During this time, the MPA moves to

the modulation degree dened in

P81.

This function can be used to avoid that the MPA switches o in an undesired modulation degree.

Attention! This setting can only be

applied for the regular switch-o. In case of a safety switch-o, the MPA switches o without changing the

modulation degree to the desired setting.

This value denes the desired

modulation degree for a regular

switch-o. Chose the value so that

no undesired noise or vibrations are generated during the regular

switch-o.

Attention! A suciently long transition time after a regular switch-o (P80) must be dened in order to

reach this modulation degree.

Attention! This setting can only be

applied for the regular switch-o. In case of a safety switch-o, the MPA switches o without changing the

modulation degree to the desired setting.

P82 Follow-up time See state: "Follow-up time".

Denes the time during which the

external light is not monitored after

a regular switch-o.

P83 Post-aeration time Denes the post-aeration time after

a regular switch-o.

Attention! After a safety switch-o,

this post-aeration is not carried out!

P84 O-period before

restart

Denes the duration of the compulsory waiting time until the automatic burner control is allowed to start again.

33 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 35

8 Parameters

8.9 P9x - Waiting program

Parameter

Designation Description Setting

P9x

P90 Waiting program:

Restart

attempts

P91 Waiting program:

Duration

Denes the number of restart attempts after the errors "Lack of

gas on GDWVPS" or "Safety chain open" until the MPA switches to the

fault switch-o.

The setting 0xFF and 255 means that an innite number of restart attempts can be carried out without

activating the fault switch-o of the

MPA.

Denes the time period after which

the MPA carries out another restart attempt.

Attention! For the rst restart attempts, the duration can dier from

this setting! See state: "Waiting program".

Printed in Germany • Edition 02.14 • Nr. 254 722

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Page 36

8 Parameters

8.10 Internal parameters

Parameter

Designation Description Setting

P10

P250 Internal parameters:

Modulation degree modication allowed

P251 Parameter stick:

Password

P252 Internal parameters:

Programming of

curves

Please do not change!

35 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 37

8.11 Parameter record and stick

for continuous run

The MPA51xx oers the possibility to load predened parameter records

from a stick.

The parameter record stick is adjusted during the startup phase (state

2). That means that, if the parameter

P10 is active (=1), the data of the

stick are compared with the data of the automatic burner control. If deviations are detected, the data on the stick are copied into the automatic burner control. To copy the data, a password which is adapted to the

stick must be entered (a "c" ashes

in the display).

If the parameter is not active (= 0),

the function "Parameter record stick" is considered as not desired. Therefore, the data are not compared and not copied. The automatic burner control works with the data stored in the MPA.

The continuous run function is only possible using a stick. There is always a check (independent of P10) whether a continuous run stick is plugged in. At the same time, this can also be a parameter record stick.

It is not possible to copy a data record from the MPA to a parameter record stick. Parameter records must be generated and created by DUNGS.

Attention!

The parameters in the MPA only comply with the parameters of the parameter record stick if the parameter P10 is active!

Attention!

There are parameter record sticks which do not compare and copy all

parameters but only a part quantity.

Please observe which parameters are compared and copied by the plugged-in parameter record stick and which not.

a) Conguration of the burner ver-

sion with astick permanently plugged in:

As soon as the stick is plugged

in and the password is entered,

a specic parameter record is

transmitted to the MPA. Is is possible to modify parameters but, during the next startup phase

(state 2), the modications are

recognised and the automatic burner control copies the data from the stick.

If the stick is removed, the MPA

does not start again.

Attention!

According to the stick, some

parameters are not considered during the adjustment process

(stick with a part quantity of the

parameters).

Attention! For this application, the param-

eter P10 must never be deactivated!

This version is suitable for a per-

manent denition of the burner.

When a (defective?) MPA is replaced, the stick connected to the burner guarantees that the new MPA uses the same settings than the old one.

b) Conguration of the burner version

by a stick which is used only once:

As soon as the stick is plugged

in and the password is entered,

a specic parameter record is

transmitted to the MPA (P10 must be active).

During a restart (recommended!)

the new parameter record is again compared in state 2 with the values on the stick and thus the adjustment process is controlled. If a restart is carried out or not, the user has to check the new data and to enable the new settings by deactivating the parameter 10. Note: the parameter view in the VisionBox must be updated!

After the unique copy process

and the deactivation of the parameter 10, the stick may remain plugged in or can be replaced by another stick.

Even if the stick remains plugged

in, modications of the parameters are not recognised. For another data adjustment with the MPA, the parameter 10 must be activated. During the next startup phase

(state 2), the MPA carried out an-

other data adjustment (protected by a password).

Attention! According to the stick, some

parameters are not considered during the adjustment process

(stick with a part quantity of the

parameters).

This version is suitable to pro-

gram a unique conguration in a

MPA, for example, in the produc-

tion during a rst startup, as a

"Return-To-Factory-Settings function",...

Attention!

A special access level is dened

for activation or deactivation of the parameter records on the extension module.

A parameter record stick can be used for the following applications:

Printed in Germany • Edition 02.14 • Nr. 254 722

36 … 68

Page 38

9 Curve settings/ modulation degree

9.1. Stick and VisionBox

The programming of curves is only possible using the VisionBox and a parameter record stick! The curves cannot be processed via the 3 segments display!

It is possible to plug in the desired parameter record stick or to start the respective interface of the application software of the connected VisionBox under "View Programming of curves".

37 … 68

Here you can: a) read the current settings of the

MPA,

b) change the setting of the modula-

tion degree point and the special points by a right mouse click,

c) transmit the modied settings

temporarily to the MPA for test purposes.

Attention! Settings are reset after

a restart of the MPA!

Printed in Germany • Edition 02.14 • Nr. 254 722

d) apply the modied settings in the

MPA.

Attention! Applied settings are

permanently active and remain stored.

PWM 2 and PWM 3 can be used according to the connected extension module for analogue output signals (for ex. 0...10 V or 4...20 mA).

Page 39

9.2 Denition of terms

9.2.1 Burner capacity

Indicates the capacity and/or heat

produced by the burner. Typically, the capacity is indicated in kWh.

9.2.2 Modulation degree

Normally, there is a dierence between the modulation degree and the burner capacity. However, it is possible to program the MPA in a way so that the two values comply with each other!

It is possible to predene the so-

called "modulation degree" of the burner in the state "Standard mode" on the MPA using several options (see P72).

A specic combination of nominal

value for the fan, stepped motor position and nominal value for PWM 2 and 3 is assigned to each modulation degree via the curve segment. That means that, if a new modula-

tion degree is predened, the MPA

calculates the corresponding nominal values for the fan, for the stepped motor, for PWM 2 and PWM 3. Afterwards, the fan, the stepped motor, PWM 2 and PWM 3 are adapted to the new value. The modulation degree can be changed in the range between 0 % and 100 %.

Attention!

0 % (100 %) do not comply necessarily to the lowest (highest) possible burner capacity! The actual burner capacity depends on the combina-

tion of all inuencing values.

But the MPA can be set in a way that 0 % of the modulation degree complies to the minimum burner capacity and 100% to the maximum burner capacity. Minimum means in

this case not "Flame O" / " No heat" but "smallest possible ame". Also

the modulation degrees between 0% and 100% can be programmed proportionally to the burner capacity. A relationship between modulation degree and burner capacity, however, is not necessary for the MPA.

9.2.3 Curve point

In the MPA, up to 30 curve points can be programmed for the standard mode. At least 2 points must be available: one for the modulation degree 0 % and the second for a modulation degree 100 %.

A curve point denes the nominal

value for the fan, the position of the stepped motor and the nominal values of the PWM signals 2 and 3 at the assigned modulation degree.

9.2.4. Special point

In order to dene the respective

combinations for fan, stepped motor, PWM 2 and PWM 3 also outside the standard mode, there are the socalled "Special points". They indicate

For modulation degrees which are

not explicitly dened as a curve

point, the MPA calculates the respective intermediate value from the

previous and the subsequent point

(linear interpolation).

2 curve points for the same modulation degree are not allowed! The curve points are automatically assorted in increasing order according to the modulation degree.

the nominal values, for ex. during the pre-aeration, the ignition, the postaeration, etc. These special points

are assigned to specic states. They

are not assigned to the modulation degree, since these special points

The programmed nominal values, for example for the stepped motor, can also be curves with changing curve directions, that means that even a curve can be programmed in the following way:

must represent not valid combinations of the curve segment.

Printed in Germany • Edition 02.14 • Nr. 254 722

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Page 40

10 Error overview

MPA 51xx

Error

Internal

error

Error description Possible cause of the error

10.1 Errors from processor 2

Display ashes

Display

●

No bus connection to processor 1 ? TWI bus connection blocked by an de-

fective external bus user, for example a

defective VisionBox or ....

Incorrect display ? The display AM03 (only for MPA 51) has

been connected to the MPA 51xx. Correct: Use AM08 or AM09

Password change for access level failed. ? Incorrect password for the access level

? Unlock key has not been pressed

ashes

10.2 Error from the basic system (0x01 to 0x3F)

0x01 ● ERROR_INTERRUPT_CYCL_STATEFRAME 0x02 ● ERROR_WD_TRIGGERING

0x03 ● ERROR_WD_HARDWARE

ERROR_UNLOCKING_DENIED ? more than 5 unlockings in the last 15

0x04

minutes, remedy: Wait or carry out an Extended unlocking

0x05 ● ERROR_ROM_TEST 0x06 ● ERROR_RAM_TEST

0x07 ● ERROR_PINSHORTCIRCUIT

0x08 ● ERROR_STACK_OVERFLOW

0x09 ● ERROR_PROGRAMMING

0x0A ● ERROR_DI_VARIABLE

0x0B ● ERROR_IN_TABCONTROLERROR 0x0C ● not used 0x0D ● ERROR_CPU_TEST

0x0E ● ERROR_EEPROM_PARAMETER

0x0F ● ERROR_ADDRESS_TEST

0x10 ● not used

0x11

ERROR_UNDERVOLTAGE ? The admissible lower voltage limit was

not reached at least for a short time

ERROR_POWERFAILURE ? The supply voltage was interrupted dur-

0x12

ing startup, in the operation or during the

regular switch-o

0x13 ERROR_WD_STATUS ? The safety chain is not potential-free 0x14 ● ERROR_DI_SEGMENT_TEST 0x15 ● ERROR_SFRREGISTER_TEST

ERROR_TWI_COMMUNICATION ? A user of the TWI bus must be con-

nected to the bus or separated from the bus while the MPA was disconnected from the mains. Remedy: Connect or separate a user of the TWI bus only if the MPA is

0x16

disconnected from the mains. ? Too many users are connected to the TWI bus or EMC faults occur on the TWI line. Remedy: Use shorter lines or reduce the number of users

39 … 68

0x17 ● ERROR_STATEFRAME_OVERLOAD

ERROR_EXTERNAL_APPLICATION A switch-o has been activated by an ex-

0x18

Printed in Germany • Edition 02.14 • Nr. 254 722

ternal user, for example by selecting the

function "Switch-o" in the PC software of

the VisionBox

Page 41

10 Error overview

MPA 51xx

Error

Internal

error

Error description Possible cause of the error

0x19 ● not used

0x1A ● ERROR_SWWD_DURING_INITIALISATION

0x1B ● ERROR_BUFFEROVERFLOW

0x1C ●

0x1D ●

ERROR_SYNCHRONISATION_DURING_INI-

TIALISATION ERROR_PROCESSORFAILURE ? MPA is inuenced by strong EMC inter-

ferences

0x1E ● ERROR_SFRREGISTER_STATEBLOCK

... not used

10.3 Error from the extended functions (0x40 to 0x9F)

ERROR_ FANDEFAULTS ? In the curve segment, a fan default is

predened, which is smaller than the mini-

mum speed or higher than the maximum speed of the fan (P26 or P27).

0x40

P26 (min. speed) is 500 U/min but the

speed for modulation degree 0% is set to 480 rpm. Or P27 (max. speed) is set to 5600 rpm but the pre-aeration B should be carried out with 5800 rpm.

ERROR_FAN_DEVIATION ? The number of pulses in the fan feed-

back is set to an incorrect value

0x41

? The fan is not suitable for the desired speed

? The predened tolerance is too low or

the fan controller is not optimised

ERROR_FAN_NO_FEEDBACK ? The feedback line of the fan is not cor-

rectly connected or is interrupted

0x42

? The fan is blocked and does not work ? The fan is not supplied with power or is

defective

0x43 ERROR_TEST_IONISATIONINPUT

ERROR_CURVECRC16_TEST ? The curve segment was temporarily

0x44

changed, for ex. for putting the MPA into operation, and was not correctly enabled later

0x45 ● ERROR_INVALID_MODULATIONDEGREE ? Modulation degree is outside the limits 0x46 not used 0x47 ● ERROR_INVALID_STEPPEDMOTORTYPE ? Check stepped motor (compare P30)

ERROR_STEPPEDMOTOR_TOLERANCE_EXCEEDED

0x48

? The lines to the stepped motor are not correctly connected or partly interrupted ? The stepped motor is charged with more

than the admissible torque, for example due to improper mounting of the ap or

pressure impulses.

0x49

ERROR_STEPPEDMOTOR_REFERENCE_ NOT_FOUND

? see error 0x48

0x4A ERROR_STEPPEDMOTOR_NO_REACTION ? see error 0x48

ERROR_PARAMETERRECORDSTICK_NOT_ FOUND

? Parameter record activated but not plugged in the MPA

? Stick defective ? Duration of the standard mode (P70) is

0x4b

higher than 23 h 59 min and the continuous run is not enabled

? PWM outputs congured to analogue

operation (0..10 V or 4...20 mA) but no suitable stick is plugged in.

Printed in Germany • Edition 02.14 • Nr. 254 722

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Page 42

10 Error overview

MPA 51xx

Error

Internal

error

Error description Possible cause of the error

ERROR_PARAMETER_RECORD_STICK_

0x4C

0x4d

BLOCK_ADJUSTMENT

ERROR_PARAMETER_RECORD_STICK_INCORRECT_PASSWORD

ERROR_PARAMETER_RECORD_STICK_

0x4E

0x4F

NO_CONTINUOUS_RUN

ERROR_PARAMETER_RECORD_STICK_ TYPE

0x50 ● ERROR_FEEDBACK_ADDITION_INCORRECT

ERROR_ADDITION_INVALID_DELAY ? Parameter P52 or P53 are set to an

0x51

0x52 not used

0x53 ERROR_LACKOFGAS_GDWVPS

ERROR_PWM_CALIBRATION_VALUES ? The EEPROM was changed or deleted

0x54 ●

? A parameter could not be copied from the stick, for ex. because the variable lim-

its in the MPA were conned.

? The entered password is not suitable for this stick

? Duration of the standard mode (P70) is higher than 23 h 59 min and the continuous run is not enabled

? The stick does not t with the type of au- tomatic burner control

invalid value because the concerned state (P50 or P51) cannot have the set duration

when programming the parameter record stick ? Parameter record stick defective

0x55 ●

ERROR_PARAMETER_RECORD_STICK_ CRC_DATA

... not used

10.4 Error from the application (from 0xA0)

ERROR_STATE_DURATION_TOO_LONG

0xA0

(Error fan and/or stepped motor)

ERROR_FAN_STARTUP

(Error fan and/or stepped motor)

0xA1

ERROR_SAFETY_CHAIN_OPEN ? The safety chain has been opened or is

0xA2

ERROR_PARAMETER_RECORD_STICK_

0xA3

NO_PASSWORD

0xA4 ● ERROR_FEEDBACK_V1_INCORRECT 0xA5 ● ERROR_FEEDBACK_V2_INCORRECT

ERROR_EXTERNAL_LIGHT ? Earth connection to an ionisation elec-

0xA6

? Parameter record stick defective

? in the state 3, 16 and 23: The fan and/or

the stepped motor cannot reach its nominal value within the expected time period

? other states: Internal error

? in the state 3, 16 and 23: The fan and/or

the stepped motor cannot reach its nominal value within the expected time period ? other states: Internal error

not closed ? The wires of the safety chain are interrupted

? The values in the MPA and in the parameter record stick are dierent. The requested password was not entered (timeout).

trode

? Gas ows out and is burned for ex. by

neighbouring burners ? Connected ame detector detects ex- ternal light

41 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 43

10 Error overview

MPA 51xx

Error

Internal

error

Error description Possible cause of the error

ERROR_NO_FLAME_DURING_SZA ? Ionisation electrode incorrectly set

0xA7

ERROR_FLAME_GONE_OUT_DURING_OPERATION

0xA8

0xA9

ERROR_FLAME_GONE_OUT_DURING_STABILISATION

ERROR_IDLESTATECONTROL_LDW ? The air pressure detector is defective

0xAA

ERROR_NO_AIR_PRESSURE ? the air pressure detector is incorrectly

0xAB

0xAC ● ERROR_FEEDBACK_IGNITION_INCORRECT

0xAD ERROR_LACKOFGAS_GDWMIN

0xAE ERROR_VPS_V1_LEAKING

0xAF ERROR_VPS_V2_LEAKING

0xB0 ● ERROR_TESTCIRCUIT_EXTENSION

... not used

? Ignition electrodes incorrectly set ? Insulated lines of the ignition electrodes

or the ionisation electrode defective

? Pneumatic composite incorrectly set /

Incorrect gas type

? Gas valves do not open the gas ow ? Incorrect conguration of the curve

points

? Connected ame detector (UV, ...)

detects light or is defective

? Lines of mains connection on the MPA exchanged ("N" and "L1")

? Gas supply or pneumatic composite

are not set/suitable for high capacities

? Flame body defective ? Connected ame detector (UV, ...)

detects no light or is defective

? see 0xA8, the problem occurs earlier.

? There is an air pressure during the idle

state control, for ex. due to an air ow from

the exhaust line,... ? The threshold value of the air pressure detector is set to an incorrect value

connected or defective

? the fan does not work ? the threshold value of the air pressure

detector is set to an incorrect value

Printed in Germany • Edition 02.14 • Nr. 254 722

42 … 68

Page 44

11 Display unit

11.1 Overview display modes

Mode Active

Operational status display in normal operation if no error is active Error display if the automatic burner control is in the fault switch-o phase Info display by pressing the key combination

(+ and ↵) in state 1 or 35

Service display by pressing the key combination

(- and ↵) in state 1 or 35

Display of the error memory by pressing the key combination

(+ and ←) in state 1 or 35

Parameterising display by pressing the key combination

(↵ and ←) in state 1 or 35

Reset display by pressing the key combination

(- and ←) in the operational status display

Password entry

if a new parameter record is to be copied

Parameter record stick Flashing display

Option 1: Request to conrm the access level change

Option 2: Keep the unlock key depressed for more than 5 s to restart the MPA

43 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 45

11.2 Key assignment MPA 5111 and MPA 5112

Characters

blue

Heat

request

blue

Flame

yellow

Fault

red

Printed in Germany • Edition 02.14 • Nr. 254 722

44 … 68

Page 46

11.4 Operational status display MPA5111

Display of the individual process states

45 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 47

11.6 Error display

Error display

An error message is automatically displayed as soon as the automatic system goes to the fault lock

▶

system.

▶ The error that has occurred last is displayed.

Automatic activation if a fault is active

As long as the Plus key is kept depressed, the state

number is displayed

Unlock

As long as the Minus key

is kept depressed, the

additional error message is

displayed

Printed in Germany • Edition 02.14 • Nr. 254 722

46 … 68

Page 48

11.7 Information display

Info display

▶ The info display is activated out of the operational status display.

Using the info display, information on the current counter reading such as

▶

start counter and permanent runtime meter can be called.

▶ This operating mode is left after a timeout of 20 s if no key is pressed within this time period.

Activation of the info display

by simultaneous pressing of

the keys

Display of the

quality

of the ionisation

current

Display of the fth

place before the

decimal point (1) on

the permanent run

time meter

Display of the fth

place before the

decimal point (1)

on the permanent

start counter

Display of the fth

place before the

decimal point (100)

on the permanent

start counter

Display of the fth

place before the

decimal point (100)

on the permanent run

time meter

Display of the fth

place before the decimal point (10000) on the permanent run

time meter

Back to the opera-

tional status display

47 … 68

from each info display state

Printed in Germany • Edition 02.14 • Nr. 254 722

Display of the fth

place before the decimal point (10000) on

the permanent start

counter

Switches to the

operational status

display

Page 49

11.8 Service display

Service display

▶ The service display is activated out of the operational status display.

▶ The service display can only be activated in the burner mode.

▶ A heat request must be active on the temperature controller input.

▶ Power setting by means of the ± keys

In this mode, the device does not react to the power setting signal of the inputs Power [+] and

Power [-]

Activation of the service display: press the keys simultaneously

back to the

operational status display

set modulation percentage

Reduces the power

Increases the power

Printed in Germany • Edition 02.14 • Nr. 254 722

48 … 68

Page 50

11.9 Parameterisation display

Parameterisation display

The parameterisation display can only be activated when the standby mode on the operational

▶

state indicator is active.

▶ The parameters which cannot be changed due to the access level are only displayed.

Switches to the

operational

status display

Conrm the param-

eter selection

Value equal to 0

Parameter type

Activation of the parameterisation display by

simultaneous pressing of the keys

Previous parameter

Next parameter

Action cancel

3,4

Saves the value

49 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Value equal to 1

Parameter type U8

Reduces the value

Increases the value

Cancel the action

Saves the value

Reduces the value

Increases the value

Page 51

11.9 Parameterisation display

cancel

Parameter type U16

Set the thousands

Value reduction

Value increase

Set the ones

conrmation

cancel

conrmation

Value reduction

Value increase

Value in P1 correctly saved

Code input

High Byte

Switches to

the

operational

status display

Value reduction

Value increase

conrmation

cancel

conrmation

Code input

Low Byte

Value reduction

Value increase

conrmation

Flashing display As long as the the level

change is conrmed by

pressing the reset key

back to the corresponding parameters

Incorrect password,

display ashes showing CCC

for 1 s orafter 30 s elapsed without passward entry

Printed in Germany • Edition 02.14 • Nr. 254 722

50 … 68

Page 52

11.10 Reset display

Reset display

▶ The reset display is activated out of the operational status display.

The error memory, the access levels, resettable runtime meter and start counter can be reset by

▶

means of the reset display.

▶ This operating mode is left after a timeout of 20 s if no key is pressed within this time period.

Activation of the reset display by simultaneous pressing of the keys

Parameter

Back to the operational

status display

Cancel the action

Action 0,1,2,3

Action to be carried out: 0 deletes the error memory 1 resets the access level 2 deletes the resettable runtime

meter

3 deletes the resettable start

counter

4 Change password for SERVICE

level

5 Change password for OEM

level

Action 4,5

51 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 53

Value reduction

Value increase

Value reduction

conrmation

Value increase

conrmation

Switches to the

operation display

Value reduction

Value increase

cancel

Correct password

Flashing display until the level

change is conrmed by means of

the reset key

Code input

New password

High byte

conrmation

30 s elapsed without level switching

conrmation

Incorrect password

Error,

ashing display

for 5 s

Back to

operation display

Value reduction

Code input

New password

Low byte

Value increase

Switches to the

operational status

display

Flashing display for 3 s

Code indication

New password

High byte

cancel

conrmation

Code indication

New password

Low byte

Flashing display for 3 s

Back to the operational

status display

Printed in Germany • Edition 02.14 • Nr. 254 722

52 … 68

Page 54

11.11 Error memory display

Display of the error memory

▶ The display of the error memory is used to call the last ten errors.

▶ The error that has occurred last is displayed.

▶ The error memory display is activated out of the operational status display.

▶ This error memory display is left after a timeout of 20 s if no key is pressed within this time period.

▶ The error that has occurred last is displayed.

last error occurred

As long as the Plus key is kept depressed, the state number is displayed

...

As long as the Minus key is kept depressed, the additional error message is displayed

if the key is pressed, always the previous error is displayed

from each error display state

Switches to the

operational status

display

As long as the Plus key is kept depressed, the state number is displayed

rst error of the last ten errors

53 … 68

Back to the operational status display

Printed in Germany • Edition 02.14 • Nr. 254 722

As long as the Minus key is kept depressed, the additional error message is displayed

Page 55

11.12 Password entry parameter record stick

Password input for parameter stick

If the parameter values of the plugged-in parameter stick do not comply with the stored parameter

▶

values of the automatic system, a password must be entered before starting the automatic system. Then, the parameter values are copied.

▶ After conrmation the automatic gas burner performs a restart.

If the password is not correctly entered, the automatic system switches, depending on the anti-

▶

oscillation counter, to the error status or returns to the password entry.

▶ When the password entry is correct, the automatic system is restarted.

Automatic change to the Parameter stick - password display during start process

c ashes

Code input

conrmation

then the system is restarted

Reduces the value

Increases the value

Printed in Germany • Edition 02.14 • Nr. 254 722

54 … 68

Page 56

12 VisionBox

The VisionBox is used to have access to the MPA via a PC. See VisionBox

55 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 57

13 Flame detector

The following ame detectors are

approved by DUNGS and can be recommended for use in connection with the MPA51xx:

Manufacturer Designation Type Output signal Reaction

time

- Ionisation

Ionisation Ionisation < 1 s Yes

electrode

BST solutions DUNGS

KLC 1000 FLW 20

KLC 2000 FLW 10

UV tube Ionisation (1 s + 0.5 s) =

< 1.5 s

Flicker detector with

Ionisation (1 s + 0.5 s) =

< 1.5 s

frequency

analysis

DUNGS has the following requirements to ame detectors used with

the MPA51xx:

4. Under these conditions, the simu-

lation circuit in the ame detector

must reach at least a direct current 3 µA.

1. Approval and certication by the

respective bodies (DVGW, DIN Certco,...) must be ideally provided.

An independent prove about the

compliance with the respective demands of the DIN EN298 is

required.

2. The ionisation behaviour of a

ame must be simulated (rectier eect)

3. The following values are active on the ionisation input and output

230 VAC +10 % -15 % The internal resistance of the

MPA is approx 1 MΩ. For safety reasons, the ame sensor must

work properly also with an internal

resistance of 360 kΩ.

If an alternating current with a DC

component is simulated, the DC component should reach at least 25%.

The current can be derived to N,

PE or returned to N on the MPA.

5. The supply voltage for the ame detector must be tapped o at the

output ION_PWR of the MPA51xx

(230 VAC, max. 1 A).

6. The reaction times must be observed!

Total reaction time = reaction time

MPA + reaction time ame detec-

tor

The reaction time of the MPA is < 1 s

7. The EMC regulations must be observed (EN 298). The entire system must not represent inadmissible emissions.

For a good ame detection the ame

signal has to be considered during

conguration of the burner. The LED of the ame on the display must not be ashing and the dis-

played signal in the VisionBox application must have more than 40 digits.

Certicate Continuous

operation

Yes No

8. The MPA51xx is not decoupled. The polarity of the MPA and the

ame detector must be strictly

observed.

9. Prior to use a ame sensor which

is not included in the list, please contact DUNGS. DUNGS cannot

be held liable if the ame detector

and the automatic burner control do not work orderly together. Especially if the electromagnetic behaviour is not according to the regulations or if the time dependent behaviour is not correct.

Printed in Germany • Edition 02.14 • Nr. 254 722

56 … 68

Page 58

14 Stepped motor

14.1 Overview of the possible stepped motor types

SAD 15 SAD 1.2 WG SAD 1.5 SAD 1.2

SAD 3.0 WG SAD 3.0 (IP 40)

SAD 10 WG

14.2 Reference point "Standard"

The rotation ranges are indicated

90°

0°

14.3 Reference point "Exchanged"

0°

90°

90° = 93,37°

90°

0°

90°

57 … 68

0°

90°

Printed in Germany • Edition 02.14 • Nr. 254 722

this version is not yet available

90°

0°

90° = 93,37°

Page 59

14.4 Mathematical angle positions

The mathematical angle position is indicated in the view from the bottom on the driven shaft as shown in the pictures above. The mathematical angle position

0° / 90° correspond to:

of the stepped motor position 0° or 90° for the respective stepped motor type is indicated in the following table:

180°

90°

0° (360°)

270°

SAD 15 SAD 1.2 WG

Reference point

270° / 0° 90° / 0° 270° / 166,63° 90° / 0°

"Standard":

Reference point

19° / 289° 81,5° / 341,5° 156,92° /

"Exchanged":

*1 : this version is not yet available

Attention!

All stepped motors must be

equipped with two mechanical stops.

• Lower mechanical stop between -7°

and -10°

• Upper mechanical stop between

92° and 95° or

upper mechanical stop between

95,5° and 98,5° for SAD1.5 and

SAD3.0 (IP 40) The absolute stop positions depend on the stepped motor and the selected reference point (see table).

SAD 3.0 WG SAD 10 WG

SAD 1.5 SAD 3.0

(IP 40)

SAD 0.6 SAD 1.2

341° / 71°

250,29°

Printed in Germany • Edition 02.14 • Nr. 254 722

58 … 68

Page 60

14.5 Wiring diagram SAD15

N L PE

EA SA 1 EB SB 2 OK WD 3

GND 4 AA MA 5 AB MB 6

Power supply

PIN designation in the SAD 15 230 V mains power supply or MPA output 6

L L1

N N

Signal lines SAD15

PIN designation in the SAD 15 230 V mains power supply or MPA output 6

1 6 2 5 3 not used 4 2 5 4 6 3

not used 1

Connection SAD15

59 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 61

14.6 Power supply of the stepped motors

Stepped motor 230 V (L1)

Mains power supply

24 V by means of a separate power supply unit

24 V via MPA5111

SAD 1.2 - X (> 7W) X SAD 1.2 WG - X (> 7.5W) X SAD 1.5 - X (> 7W) X SAD 3.0 (IP40) X - SAD 3.0 WG - X (> 10W) X SAD 10 WG *1 - X (> 10W) ? SAD 15 X - -

this version is not yet available

Printed in Germany • Edition 02.14 • Nr. 254 722

60 … 68

Page 62

61 … 68

Printed in Germany • Edition 02.14 • Nr. 254 722

Page 63

15 Time diagram

MPA51xx

Parameter

Time

State number

Safety chain

Watchdog

Alarm

Temperature controller

Additional valve *4

Ignition

Fan relay

PWM1 (fan)

by means of an extended module

General version

Y1 Y3

Y2 Y1

Y3 Y2

Viessmann version

Error

Waiting for heat request

Waiting for parameter record stick adjustment

Idle state control: Fan/stepped motor

Idle state control LDW (air pressure switch)

Watchdog loading phase

Startup phase: Fan/stepped motor

Waiting for air pressure

VPS A: Decision

VPS A : Emptying the area between the valves

VPS A: Test time V1

VPS A: Filling the area between the valves

VPA A: Gas pressure detection

P40 P42 P43 P44 P45 P60

0...

max. 3 m in

max. 2 m in

3 s

max. 2 m in

max. 3 0 s

0.1 s

1...3 s

1...240 s

1...3 s

0.1 s

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

*2a

*2b

VPS A: Test time V2

Pre-aeration A

1...240 s

0...1 h

PWM2 (for ex. analogue 0...10 V)

PWM3 (for ex. analogue 4... 20 mA)

Stepped motor

Flame (ionisation)

LDW *1

GDW min.

GDW VPS *5

Parameter record stick active

Parameter VPS Startup

Parameter VPS Regular switch-o

*1) The monitoring of the LDW depends on

the operating mode set in P14.

*2) Analogue and fan capacities as well as fan

speed can be set by means of curves.

a) Special modulation point: OFF b) Special modulation point: Pre-aeration A c) Special modulation point: Pre-aeration B d) Special modulation point: Ignition position

● *2a

●

e) Special modulation point: STA f) Special modulation point: Stabilisation A g)

Special modulation point: Stabilisation B h) Parameter P67: Start modulation degree Standard mode

i) Parameter P81: Regular switch-o: Power

during transition j) Special modulation point: Post-aeration

*2b

*3) In the waiting program state, the rst waiting time is 2 minutes, then 5 minutes, then 1 hour and afterwards a time period which can be set by means of a parameter between 1 minute and 50 hours. If the set time period is

smaller than the rst three intervals, these are

also reduced. Another parameter indicates

whether a fault switch-o is allowed and, if

yes, how many restart attempts are to be carried out until the automatic burner control

Printed in Germany • Edition 02.14 • Nr. 254 722

62 … 68

Page 64

Pre-aeration B

Ignition position

Gas detection GDWVPS

Pre-ignition

SZA ignition

SZA - Flame detection

Stabilisation ame A

Stabilisation ame B

Changeover to the standard mode

Standard mode

Changeover after regular switch-o

VPS B: Decision

VPS B : Emptying the area between the valves

VPS B: Test time V1

VPS B: Filling the area between the valves

VPA B: Gas pressure detection

VPS B: Test time V2

Follow-up time

Post-aeration

Restart protection

Waiting for heat request

P61 P62 P63 P64 P65 P66 P70 P80 P41 P42 P43 P44 P45 P82 P83 P84 *3

0...1 h

max. 2 m in

0...1 h

0...1 min.

0.5.. .9, 4 s

0.5 s

1...200 s

max. 2 m in.

0...

1...30 s

0.1 s

1...3 s

1...240 s

1...3 s

0.1 s

1...240 s

1...60 s

0...1 h

0...

15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 1 35 36

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

*2c *2d *2e *2f *2g *2h *2i *2j

*2a

Lack of gas GDWMIN

0...

Waiting program

x min.

63 … 68

*2c *2d *2e *2f *2g *2h *2i *2j

goes to the fault switch-o. The waiting program state is triggered by a lack of gas or an open safety chain.

*5) The GDW VPS is monitored during the

valve test. Additionally, the parameter P46

can dene whether the minimum pressure

monitoring via GDWVPS during operation

*4) The start help valve can be switched on

between state 17 and state 25 is active or not.

and o at any time (parameter). However it

must be activated with the beginning of the state "Waiting for gas pressure" at the earli-

Printed in Germany • Edition 02.14 • Nr. 254 722

est and during the valve test after a regular

*6) The ame is detected here and must be

generated in this state at the latest.

switch-o at the latest.

Page 65

Appendix A Versions and variants

Variant Version SAP device SAP SW P1

Stick type

for VisionBox

MPA5111 V1.0 251446 D 251547 _ 51 1

V1.1 251446 E 251547 A 51 2

Changes from V1.0 to V1.1

1. The V1.1 version corresponds to VDE EN60335-1 section 30 of

2007.

2. The passwords for OEM and SERVICE levels can be changed now.

3. Preparations for connection of

Probus modules.

4. Simplications for parameter

changing procedure.

Printed in Germany • Edition 02.14 • Nr. 254 722

64 … 68

Page 66

Appendix B

Parameter overview

Name DUNGS

Aus-

Einheit Bedeutung

Einstellwerte

Min Max

Zugris-

ebene

lieferung

Para-

meter

10 PARAMETER_STICK_AKTIV AUS Parameterstick: aktiv OEM 11 ANZAHL_WIEDERANLAUFVER-

SUCHE

12 ANZAHL_WIEDERANLAUFVER-

SUCHE_NACH_FEHLER_ KEINE_FLAMME_WAEHREND_

5 Wiederanlaufver-

suche

0 Wiederanlaufver-

suche nach fehlender Flammenbildung

0 10 OEM

SZA

13 ANZAHL_WIEDERANLAUFVER-

SUCHE_NACH_FEHLER_ FLAMMENABRISS_IM_BE-

0 Wiederanlaufver-

suche nach Flammenabriss

0 10 OEM

TRIEB 14 BETRIEBSART_LDW 0 LDW: Betriebsart 0 3 OEM 15 BETRIEBSART_TEMPERATUR-

REGLER

16 PARAMETERSATZ_KUNDEN_ID 0 Parametersatz:

3 Temperaturregler:

Betriebsart

0 255

BETREIBER

0 255 DUNGS

Kundennummer

17 PARAMETERSATZ_SATZ_ID 0 Parametersatz:

0 255 DUNGS

Nummer

18 BETRIEBSART_PWM_AUS-

GAENGE

0 Analogausgänge:

Betriebsart

0 15 SERVICE

20 GEBLAESE_REGELSCHALTER AUS Gebläse: Regelung OEM 21 GEBLAESE_RAMPE_VER-

ZOEGERUNG

1 Gebläse:

Verzögerung/Rampe

0 10 OEM

22 GEBLAESE_KP 50 Gebläse: Kp-Faktor 0 160 OEM 23 GEBLAESE_TN 50 Gebläse: Tn-Faktor 1 160 OEM 24 GEBLAESE_PULSZAHL 2 1/U Gebläse: Pulse pro

1 10 SERVICE

Umdrehung

25 GEBLAESE_ZULAESSIGE_

TOLERANZ

26 GEBLAESE_DREHZAHL_MIN 2000 U/min Gebläse: Drehzahl

500 0,01% Gebläse: zulässige

Toleranz

0 3000 OEM

1 10000 SERVICE

min.

27 GEBLAESE_DREHZAHL_MAX 10000 U/min Gebläse: Drehzahl

500 10000 SERVICE

max. 30 SCHRITTMOTOR_TYP 0 Schrittmotor: Typ 0 11 SERVICE 31 SCHRITTMOTOR_ZULAES-

SIGE_TOLERANZ

300 0,01Grad Schrittmotor: zuläs-

sige Toleranz

0 500 OEM

40 VPS_ANLAUF_AKTIV AUS VPS: aktiv im Anlauf OEM 41 VPS_ABSCHALTUNG_AKTIV AUS VPS: aktiv bei Ab-

OEM

schaltung 42 DAUER_VPS_ZWISCHEN-

RAUM_LEEREN

16 1/16 s VPS: Dauer

Zwischenraum

0 48 OEM

leeren 43 DAUER_VPS_PRUEFZEIT_V1 160 1/16 s VPS: Prüfzeit Ventil 10 9600 OEM

65 … 68

44 DAUER_VPS_ZWISCHEN-

RAUM_FUELLEN

16 1/16 s VPS: Dauer

Zwischenraum füllen

0 48 OEM

45 DAUER_VPS_PRUEFZEIT_V2 160 1/16 s VPS: Prüfzeit Ventil 20 9600 OEM

46 GDWVPS_ALS_MINUEBERWA-

CHUNG

Printed in Germany • Edition 02.14 • Nr. 254 722

AUS GDWVPS: Mind-

rucküberwachung

aktiv

OEM

Page 67

Name DUNGS

Aus-

Einheit Bedeutung

Einstellwerte

Min Max

Zugris-

ebene

lieferung

Para-

meter

50 ZUSATZVENTIL_EINSCHALT-

STATE

51 ZUSATZVENTIL_AUSSCHALT-

STATE

52 ZUSATZVENTIL_EIN-

SCHALTVERZOEGERUNG

53 ZUSATZVENTIL_AUSS-

CHALTVERZOEGERUNG

22 State Zusatzventil: Ein-

schaltstate

22 State Zusatzventil: Auss-

chaltstate

0 1/16 s Zusatzventil: Ein-

schaltverzögerung

0 1/16 s Zusatzventil: Auss-

chaltverzögerung

6 33 OEM

0 65535 OEM

60 DAUER_VORBELUEFTUNG_A 960 1/16 s Vorbelüftungszeit A 0 65534 OEM 61 DAUER_VORBELUEFTUNG_B 0 1/16 s Vorbelüftungszeit B 0 65534 OEM 62 DAUER_GASDETEKTION_GD-

WVPS

0 1/16 s Dauer Gasdetektion

Anlauf

0 160 OEM

63 DAUER_VORZUENDUNG 4 1/16 s Vorzündzeit 2 65534 OEM 64 DAUER_SZA 16 1/16 s Sicherheitszeit

16 160 OEM

Anlauf

65 DAUER_STABILISIERUNG_

80 1/16 s Stabilisierungszeit A 0 65534 OEM

FLAMME_A

66 DAUER_STABILISIERUNG_

0 1/16 s Stabilisierungszeit B 0 65534 OEM

FLAMME_B

67 STARTMODULATIONSGRAD_

REGELBETRIEB

3000 0,01% Modulationsgrad bei

Start Regelbetrieb

0 10000 SERVICE

70 DAUER_REGELBETRIEB 1439 min Dauer Regelbetrieb 0 65535 OEM 71 MODULATIONSGRAD_NEUER_

SOLLWERT

72 ART_MODULATIONSGRADAE-

NDERUNG

73 SCHRITTWEITE_MODULA-

TIONSGRADAENDERUNG

65535 0,01% Modulationsgrad:

neuer Sollwert

1 Modulationsgrad:

Art der Änderung

100 0,01% Modulationsgrad:

Schrittweite der

0 65535

BETREIBER

0 3 SERVICE

0 10000 SERVICE

Änderung

74 INTERVALL_ANALOGWERTUE-

BERNAHME

240 1/16 s Modulationsgrad:

Intervall Analogw-

1 65535 OEM

ertübernahme

75 MODULATIONSGRAD_UNTER-

GRENZE

76 MODULATIONSGRAD_OBER-

GRENZE

80 DAUER_UEBERGANG_NACH_

REGELABSCHALTUNG

81 MODULATIONSGRAD_UEBER-

GANG_NACH_REGELAB-

0 0,01% Modulationsgrad:

Untergrenze

10000 0,01% Modulationsgrad:

Obergrenze

0 1/16 s Regelabschaltung:

Übergangszeit

3000 0,01% Modulationsgrad bei

Regelabschaltung

0 10000 SERVICE

0 65534 OEM

0 10000 OEM

SCHALTUNG

82 DAUER_NACHBRENNZEIT 160 1/16 s Nachbrennzeit 9 65534 OEM 83 DAUER_NACHBELUEFTUNG 160 1/16 s Nachbelüftungszeit 0 65534 OEM 84 DAUER_WIEDEREINSCHALT-

SPERRE

90 WARTEPROGRAMM_ANZAHL_

WIEDERANLAUFVERSUCHE

80 1/16 s Wiedereinschalt-

sperrzeit

255 Anzahl Warteprogramm:

Anzahl Wiederan-

0 65534 SERVICE

0 255 SERVICE

laufversuche

91 DAUER_WARTEPROGRAMM 120 min Warteprogramm:

1 65534 SERVICE

Dauer

100 KUNDENSPEZIFISCH_OEM_0 0 Kundespezisch:

0 65535 OEM

OEM 0

101 KUNDENSPEZIFISCH_OEM_1 0 Kundespezisch:

0 65535 OEM

OEM 1

Printed in Germany • Edition 02.14 • Nr. 254 722

66 … 68

Page 68

Name DUNGS

Aus-

Einheit Bedeutung

Einstellwerte

Min Max

Zugris-

ebene

lieferung

Para-

meter

102 KUNDENSPEZIFISCH_OEM_2 0 Kundespezisch:

0 65535 OEM

OEM 2 103 KUNDENSPEZIFISCH_OEM_3 0 Kundespezisch:

0 65535 OEM

OEM 3 104 KUNDENSPEZIFISCH_OEM_4 0 Kundespezisch:

0 65535 OEM

OEM 4 105 KUNDENSPEZIFISCH_BE-

TREIBER_0

106 KUNDENSPEZIFISCH_BE-

TREIBER_1

107 KUNDENSPEZIFISCH_BE-

TREIBER_2

108 KUNDENSPEZIFISCH_BE-

TREIBER_3

109 KUNDENSPEZIFISCH_BE-

TREIBER_4

230 RESERVIERT_BETRIEBSART_

BRENNSTOFF

0 Kundespezisch:

Betreiber 0

0 Kundespezisch:

Betreiber 1

0 Kundespezisch:

Betreiber 2

0 Kundespezisch:

Betreiber 3

0 Kundespezisch:

Betreiber 4

0 Reserviert: Betrieb-

sart Brennsto

0 65535

0 255

BETREIBER

240 RESERVIERT_OEM_0 0 Reserviert: OEM 0 0 65535 OEM 241 RESERVIERT_OEM_1 0 Reserviert: OEM 1 0 65535 OEM 242 RESERVIERT_OEM_2 0 Reserviert: OEM 2 0 65535 OEM 243 RESERVIERT_OEM_3 0 Reserviert: OEM 3 0 65535 OEM 244 RESERVIERT_OEM_4 0 Reserviert: OEM 4 0 65535 OEM 245 RESERVIERT_BETREIBER_0 0 Reserviert: Betreiber 00 65535

BETREIBER

246 RESERVIERT_BETREIBER_1 0 Reserviert: Betreiber 10 65535

247 RESERVIERT_BETREIBER_2 0 Reserviert: Betreiber 20 65535

248 RESERVIERT_BETREIBER_3 0 Reserviert: Betreiber 30 65535

249 RESERVIERT_BETREIBER_4 0 Reserviert: Betreiber 40 65535

BETREIBER

67 … 68

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Page 69

Printed in Germany • Edition 02.14 • Nr. 254 722

68 … 68

Page 70

www.dungs.com

Karl Dungs GmbH & Co. KG Siemensstraße 6–10 D-73660 Urbach, Germany Telefon +49(0)7181-804-0 Telefax +49(0)7181-804-166 [email protected] www.dungs.com