Automatic burner control MPA 5111 Dungs
- These automatic burner controls MPA 5111 are designed for intermitttent operation of continuous operation for controlling and monitoring pneumatically modulating fan-assisted gas burners with speed-regulated or controlled fan and power controller input.
- Extension modules for:
- Analog inputs/outputs;
- Stepped motor;
- Continuous operation;
- Important accessories: display unit AM09 and MPA Service Pack "VisionBox".
- Classification according to EN 298: FBLLBB, FBCLBB, FMCLBB, FMLCBB, depends on the parameterization and the selected extension module.
- MPA 5111 approvals as per gas appliance directive CE-0085BT 0056 and pressure equipment directive CE0036.
Schematic diagram MPA 5111
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- Operating mode: pneumatically modulating via PWM-controlled fan.
- Ionisation flame monitoring.
- Connection for external flame detector with ionisation output.
- Ignition output for external ignition element - 230 VAC.
- Connection technology includes a snap-on 5-pin connector and a boiler connecting plug.
- Gas solenoid valve activation Y1/Y2/Y3 - 230 VAC.
- Input for temperature controller.
- Input for air pressure switch.
- Input for min. gas pressure detector.
- Input for min. gas pressure detector for valve check system.
- Fault output - 230 VAC.
- Input for safety chain.
- Burner power control via Power input, alternatively burner power control via extension module/analog.
- Restart attempt.
- Power-dependant fan speed regulation or fan control.
- Restart delay, time-dependant.
- Controller stop function
- Set via PC.
- Visualisation of the operating parameters via MPA VisionBox.
Technical specifications
| Type | Code | Voltage (V) | Frequency (Hz) | Degree of protection | Ambient temperature (oC) | Dimensions (mm) |
|---|---|---|---|---|---|---|
| MPA 5111 | 251446 | 230 VAC | 50/60 | IP 20 | 0÷60 | 220x105x60 |
Mod de lucru MPA 5111
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 depressed for at
least 1/4 second. The same applies for the 230 V unlocking. 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 described limitation
to 5 unlockings in 15 minutes can be reset using the "Extended unlocking". To do this the unlock key must be pressed between 5-10 seconds.
2) Access level
Write access to MPA is defined on different access levels. Each parameter is asigned 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 sufficient 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. To change the access level, the correct
password must be entered in the VisionBox. The access level is automatically reset after 5 hours or after power failure. Exception: if the automatic gas burner performs a restart during these 5 hours, these
5 hours for the current access level are counted again from the beginning. Note: after completing configuration of the automatic gas burner it is recommended to reset the access level immediately manually.
The 5 levels are in order: Operator, Service, OEM, OEM Expert, Dungs.
3) Parameter change
There are 3 types of parameters: U1 - 1 bit, U8 - 8 bit and U16 - 16 bit. A parameter can be modified on the 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. 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 upper and
lower limits. The variable limits may be only changed by means of VisionBox, not on the MPA display. There are parameters which cannot be changed during normal operation, to change this parameters
it is necessary to switch to the state "Waiting for heat request".
4) Special operating modes
a) Operation without valve check system: If the valve check during start-up (P40) and the valve check after a regular switch-off (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 start-up has elapsed!
b) Operation with valve check system: If the valve check is active during start-up (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-off (P41) is active, it will be carried out after every regular switch-off. Additionally,
a valve check during start-up is carried out if the valve check after the last regular switch-off has not been successful, if the automatic system has been switched off by a safety shutdown or if a power
failure has occurred since the last switch-off. If the valve tightness test has been completed successfully and P41 is inactive, the tightness state and the state "Pre-aeration B" are skipped during the next
start-up.
c) Operation with reduced pre-aeration time: Under specific circumstances, the MPA can be started with a reduced pre-aeration time. For doing this, the valve tightness test after a regular
switch-off (P41) must have been successful. Pre-aeration time A (P60) is set to 0 or pre-aeration time that is always required. Pre-aeration time B (P61): desired duration of pre-aeration if the valve tightness
test was NOT finished successfully. This duration is ignored if the valve tightness test was successful after the last regular switch-off (duration 0).
d) Operation with ignition gas flame: Basically, the MPA 5111 can be used for the operation with ignition gas flame. Attention: there is only one input for flame monitoring (ionisation).
Test volumes for MPA 5111
| Type | Nominal diameter (Rp/DN) | Test volume (liters) | Type | Nominal diameter (Rp/DN) | Test volume (liters) | |
|---|---|---|---|---|---|---|
| DMV-D(LE) 503/11 | Rp 3/8 | 0.03 | MB-D(LE) 403 | Rp 3/8 | 0.04 | |
| DMV-D(LE) 507/11 | Rp 3/4 | 0.10 | MB-D(LE) 405 | Rp 1/2 | 0.11 | |
| DMV-D(LE) 512/11 | Rp 1 1/4 | 0.24 | MB-D(LE) 407 | Rp 3/4 | 0.11 | |
| DMV-D(LE) 520/11 | Rp 2 | 0.24 | MB-D(LE) 410 | Rp 1 | 0.33 | |
| DMV-D(LE) 525/11 | Rp 2 | 0.44 | MB-D(LE) 412 | Rp 1 1/4 | 0.33 | |
| DMV-D(LE) 5040/11 | DN 40 | 0.38 | MB-D(LE) 415 | Rp 1/2 | 0.24 | |
| DMV-D(LE) 5050/11 | DN 50 | 0.39 | MB-D(LE) 420 | Rp 2 | 0.24 | |
| DMV-D(LE) 5065/11 | DN 65 | 0.69 | ||||
| DMV-D(LE) 5080/11 | DN 80 | 1.47 | MB-ZRD(LE) 405 | Rp 1/2 | 0.11 | |
| DMV-D(LE) 5100/11 | DN 100 | 2.28 | MB-ZRD(LE) 407 | Rp 3/4 | 0.11 | |
| DMV-D(LE) 5125/11 | DN 125 | 3.56 | MB-ZRD(LE) 410 | Rp 1 | 0.33 | |
| MB-ZRD(LE) 412 | Rp 1 1/4 | 0.33 | ||||
| DMV-1500-D | Rp 2 | 0.44 | MB-ZRD(LE) 415 | Rp 1/2 | 0.24 | |
| DMV-...(DLE)-65 | DN 65 | 1.47 | MB-ZRD(LE) 420 | Rp 2 | 0.24 | |
| DMV-...(DLE)-80 | DN 80 | 2.28 | ||||
| DMV-...(DLE)-100 | DN 100 | 3.55 | MBC 300 | Rp 3/4 | 0.05 | |
| MBC 700 | Rp 1 1/4 | 0.61 | ||||
| MB-VEF 407 | Rp 3/4 | 0.11 | MBC 1200 | Rp 2 | 2.05 | |
| MB-VEF 412 | Rp 1 1/4 | 0.33 | MBC 1900 | DN 65 | 1.47 | |
| MB-VEF 415 | Rp 1/2 | 0.24 | MBC 3100 | DN 80 | 2.28 | |
| MB-VEF 420 | Rp 2 | 0.24 | MBC 5000 | DN 100 | 3.55 | |
| MB-VEF 425 | Rp 2 | 0.44 | ||||
Single solenoid valves MVD.../5
| Nominal diameter Rp/DN | Test volumes = volume V1output side + V2input side+pipeline (liters) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 0.06 | 0.11 | 0.16 | 0.21 | |||||
| Rp 1/2 | 0.07 | 0.17 | 0.27 | 0.37 | 0.47 | |||||
| Rp 3/4 (DN20) | 0.12 | 0.27 | 0.42 | 0.57 | 0.72 | |||||
| Rp 1 (DN25) | 0.20 | 0.45 | 0.70 | 0.95 | 1.20 | |||||
| Rp 1 1/2 (DN40) | 0.50 | 0.7 | 1.10 | 1.35 | 1.70 | 2.0 | 2.20 | 2.65 | 2.80 | 3.3 |
| Rp 2 (DN50) | 0.90 | 1.2 | 1.90 | 2.2 | 2.90 | 3.2 | 3.90 | 4.2 | 4.90 | 5.5 |
| DN 65 | 2.0 | 3.7 | 5.3 | 7.0 | 8.6 | |||||
| DN 80 | 3.8 | 6.3 | 8.8 | 11.3 | 13.8 | |||||
| DN 100 | 6.5 | 10.5 | 14.4 | 18.4 | 22.3 | |||||
| DN 125 | 12.0 | 18.2 | 24.3 | 30.5 | 36.6 | |||||
| DN 150 | 17.5 | 26.5 | 35.2 | 44.1 | 52.9 | |||||
| DN 200 | 46.0 | 61.7 | 77.4 | 93.1 | 108.9 | |||||
Typical values for the leakage rate
| DN | Burner capacity (kWh) | adm. Leakage rate (dm3/h) 0.1% of the burner capacity or 50 dm3/h |
|
|---|---|---|---|
| 5 mbar | 30 mbar | ||
| 20 | 110 | 240 | 50 |
| 25 | 170 | 370 | 50 |
| 40 | 310 | 710 | 50-71 |
| 50 | 500 | 1100 | 50-110 |
| 65 | 910 | 2000 | 91-200 |
| 80 | 1250 | 2900 | 125-290 |
| 100 | 2050 | 4600 | 205-460 |
| 125 | 3500 | 7700 | 350-770 |
Prices for controls
| Code | Type | Prices without VAT |
|---|---|---|
| 251446 | Automatic burner control MPA 5111 | 0.00 |
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