Krom Schroder PFU 780 Manuals

Manuals and User Guides for Krom Schroder PFU 780. We have 1 Krom Schroder PFU 780 manual available for free PDF download: Technical Information

Krom Schroder PFU 780 Technical Information

Krom Schroder PFU 780 Technical Information (70 pages)

Burner control unit

Brand: Krom Schroder | Category: Control Unit | Size: 4 MB

Table of Contents

Burner Control Unit PFU 780

1
Table of Contents

2
1 Application

4
- Examples of Application
  6
2 Certification

10
3 Function

11
- Connection Diagram
  11
  - Pfu 780
    11
  - Pfu 780
    12
- PFU 780 Program Sequence
  13
- Program Status and Fault Messages
  16
4 Parameters

18
5 Selection

47
- Calculating the Safety Time T SA
  47
- Selection Table
  48
  - Type Code
    48
6 Project Planning Information

49
- Cable Selection
  49
  - Ignition Cable
    49
  - Ionisation Cable
    49
  - UV-Leitung
    49
- Ignition Electrode
  49
  - Electrode Gap
    49
  - Star Electrodes
    49
- Minimum Combustion Time
  50
- Safety Interlocks (Limits)
  50
- Emergency Stop
  50
  - In the Event of Fire or Electric Shock
    50
  - Via the Safety Interlocks (Limits)
    50
- Reset
  51
  - Parallel Reset
    51
  - Permanent Remote Reset
    51
  - Automatic Remote Reset (PLC)
    51
  - Burner Start
    51
  - Restart and Start-Up Attempts
    51
- Fault Message
  52
- Protecting the Pilot Burner from Overload
  52
- Installation
  52
- Wiring
  52
  - UVS Sensor Wiring
    52
- PFU Switched off
  52
- Furnace Control
  53
- Note on EC Type-Examination
  53
- Mains Switch
  53
- Changing Parameters
  53
7 Flame Control

54
8 Accessories

55
- High-Voltage Cable
  55
- Bcsoft
  55
- Stickers for Labelling
  55
- Changed Parameters" Stickers
  55
- Radio Interference Suppressed Electrode Adapters
  56
- Socket Connectors
  56
- Module Subrack
  56
- Power Supply PFP 700
  57
- Relay Module PFR 704
  58
- Field Bus Interface PFA 700
  59
- Impulse System MPT 700
  60
9 Technical Data

61
- Safety-Specific Characteristic Values
  63
- Operating Controls
  64
10 Maintenance Cycles

65
11 Legend

66
12 Glossary

67
- Waiting Time T W
  67
- Safety Time on Start-Up T SA
  67
- Ignition Time T Z
  67
- Flame Simulation/Flame Simulation Delay Time T
  67
- Safety Time During Operation T SB
  67
- Flame Signal
  68
- Fault Lock-Out
  68
- Safety Interlocks (Limits)
  68
- Pilot Gas Valve V1
  68
- Main Gas Valve V2
  68
- Continuous Operation
  68
- Air Valve
  68
- Diagnostic Coverage DC
  69
- Mode of Operation
  69
- Safe Failure Fraction SFF
  69
- Probability of Dangerous Failure PFHD
  69
- Mean Time to Dangerous Failure MTTF
  69
Feedback

70
Contact

70

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