Table of Contents
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Operating instructions
Furnace zone control FCU 505
Contents
Contents
Protective system control FCU 500
Furnace zone control FCU 505 . . . . . . . . . . . .
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the usage . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
zone control . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cable selection. . . . . . . . . . . . . . . . . . . . . . . . .
Connection diagram . . . . . . . . . . . . . . . . . . . . 6
FCU 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FCU 505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
IC 20 connected to FCU..F1 . . . . . . . . . . . . . . . 8
IC 20 E connected to FCU..F1 . . . . . . . . . . . . . . 9
IC 40 connected to FCU..F1 . . . . . . . . . . . . . . 10
RBW valve connected to FCU..F2 . . . . . . . . . . 11
Frequency converter connected to FCU..F2 . . 12
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . 4
Assistance in the event of malfunction . . . . 5
Replacing the fuse . . . . . . . . . . . . . . . . . . . . . . 21
Parameters and values . . . . . . . . . . . . . . . . .
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 4
Designed lifetime . . . . . . . . . . . . . . . . . . . . . . . 25
Logistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
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Safety
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the opera-
tor. This unit must be installed and commissioned
in accordance with the regulations and standards
in force. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
• , , , ... = Action
▷
= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Changes to edition 09.4
The following chapters have been changed:
-
Replacing the protective system/furnace zone
control
-
Certification
GB-1
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Related Manuals for Krom Schroder FCU 505
Summary of Contents for Krom Schroder FCU 505
-
Page 1: Table Of Contents
FCU 500 ......6 FCU 505 ......7 Changes to edition 09.4... -
Page 2: Checking The Usage
Installation ▷ Installation position: vertically upright, horizontal The protective system control FCU 500 and furnace zone control FCU 505 are designed for the moni- or tilted to the left or right. ▷ The FCU mounting is designed for horizontally toring and controlling of central safety functions in multiple burner systems on an industrial furnace. -
Page 3: Replacing The Protective System/Furnace
Replacing the protective system/ CAUTION furnace zone control Malfunction (fault message )! The old and Disconnect the system from the electrical power new FCUs must have the same hardware confi- supply. guration (see type designation on type label). The parameter chip card is not backward compatible. - Page 4 ▷ Ensure a good PE (ground) wire connection to Wiring the burner control units and burners. ▷ Do not reverse phase L1 and neutral conduc- FCU..H tor N. ▷ Use type K NiCr-Ni, type N NiCrSi-NiSi or type S ▷ Do not install different phases of a three-phase Pt10Rh-Pt Class 1 double thermocouples only.
- Page 5 ▷ BCU with power supply for valves and Safety interlock output in the case of higher power requirement ignition transformer via safety interlocks ▷ The burner start enable signal is issued to the (terminal 5) connected burner control units or automatic bur- ner control units via the safety interlock output BCU 4xx (terminal 57).
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Page 6: Connection Diagram
Connection diagram FCU 500 ▷ Legend – see page 24 (Legend). GB-6... -
Page 7: Fcu 505
FCU 505 ▷ Legend – see page 24 (Legend). GB-7... -
Page 8: Ic 20 Connected To Fcu
IC 0 connected to FCU..F ▷ Parameter 40 = 1. ▷ Continuous control via three-point step controller. STW/ 3.15AT FCU 500 12 11 3 2 1 GB-8... -
Page 9: Ic 20 E Connected To Fcu
IC 0 E connected to FCU..F ▷ Parameter 40 = 1. ▷ Continuous control via analogue input. STW/ 3.15AT FCU 500 20 19 18 12 11 3 2 1 S 1 0 1 2 3 4 5 6 µC GB-9... -
Page 10: Ic 40 Connected To Fcu..f
IC 40 connected to FCU..F ▷ Parameter 40 = 2. ▷ Continuous control via analogue input. STW/ ▷ Set IC 40 to operating mode 27, see operating instructions Actuators IC 20, IC 40, IC 40S. 3.15AT FCU 500 22 21 20 19 18 16 15 14 12 11 10... -
Page 11: Rbw Valve Connected To Fcu..f
RBW valve connected to FCU..F ▷ Parameter 40 = 3. STW/ Continuous control via three-point step controller FCU 500 R B W 0° 90° 90° 0° STW/ Continuous control via analogue input FCU 500 + F - 0° 90° GB-11... -
Page 12: Frequency Converter Connected To Fcu..f
Frequency converter connected to FCU..F ▷ Parameter 40 = 4. ▷ Continuous control via speed-controlled fan. STW/ FCU 500 Target = actual DI 1 DI 2 DI 3 0–100% GB-12... -
Page 13: Adjustment
Adjustment Commissioning ▷ During operation, the 7-segment display shows In certain cases, it may be necessary to change the parameters set at the factory. Using the separate the program status: software package BCSoft and a PC opto-adapter, it –– Device Off is possible to modify parameters on the FCU, such 00 Start-up position/standby as the pre-purge time or the behaviour in the event... -
Page 14: Manual Mode
▷ The display indicates . After pre-purge (and the Manual mode end of the valve check on FCU..C1), the valves ▷ For adjustment of the furnace system or for in the gas inlet section are opened. fault-finding. ▷ The display indicates . -
Page 15: Assistance In The Event Of Malfunction
Assistance in the event of malfunction ? The display blinks and indicates DANGER ! Inputs 51 and 52 are activated simultaneously. Electric shocks can be fatal! Before working on • Check input 51. possible live components, ensure the unit is discon- ▷... - Page 16 • If the measures described above do not help, remove the unit and return it to the manufacturer for inspection. ? The display blinks and indicates ! Interruption of signal at the “Fan feedback” input (terminal 44). • Check voltage supply to terminal 44. •...
- Page 17 ! The gas pressure switch DGp /2 (DGp ¾) has been set incorrectly. • Check the inlet pressure. • Set DGp /2 (DGp ¾) to the correct inlet pressure. ? The display blinks and indicates • Check voltage supply to terminal 45 (65). ! The FCU is being permanently reset.
- Page 18 ? The display blinks and indicates ? The display blinks and indicates ! A malfunction (sensor short-circuit) has been de- ! The connected burner control units have not tected in the thermocouple at terminals 5 and 6. signalled “Operating position reached (burner •...
- Page 19 ? The display blinks and indicates ? The display blinks and indicates ! The “no flow” state check of the air pressure ! The signal for monitoring the max. gas pressure switch has failed. (terminal 50) has dropped out at position step X. •...
- Page 20 ? The display blinks and indicates A . ? The display blinks and indicates ! The FCU is receiving no information as to whether ! No “Ignition position” signal from actuator. the POC switch contact is still open. • Check the butterfly valve for air and the function •...
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Page 21: Replacing The Fuse
• Check whether the code switch setting is identi- cal to the entry (xxx) in the PLC program. • Delete the expression “not-assigned-” in the PLC program or replace it with an individual name part (e.g. Furnacezone1-). ? The display blinks and indicates ! The PLC is set to Stop. -
Page 22: Parameters And Values
Parameters and values Name ram- Values eter Scanning the parameters Air flow monitoring during post-purge • Press the Reset/Information button for 2 s. The 0 = On; maximum capacity display changes to parameter 1 = Off; maximum capacity • Release the button. The display stops at this 2 = Off;... - Page 23 ▷ Additional parameters for FCU..H1 ▷ Additional parameters for FCU..C1 Name Name ram- ram- Values Values eter eter Temperature monitoring mode Valve proving system 0 = Off 0 = Off 1 = STM function (high temperature operation) 1 = Tightness test before start-up 2 = STL function 2 = Tightness test after shut-down 3 = STM and STL functions...
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Page 24: Technical Data
Legend Technical data Electrical data Ready for operation Mains voltage: Safety interlocks (limits) FCU..Q: 120 V AC, -15/+10%, 50/60 Hz, ± 5%, FCU..W: 230 V AC, -15/+10%, 50/60 Hz, ± 5%. High temperature operation Power consumption: at 230 V AC approx. 6 W/11 VA, plus approx. LDS Safety limits during start-up 0.15 W/0.4 VA per AC input, Gas valve... -
Page 25: Designed Lifetime
Connections: Accessories Screw terminals: nominal cross-section 2.5 mm², BCSoft wire cross-section (rigid) min. 0.2 mm², The current software can be downloaded from our Internet site at http://www.docuthek.com. To do so, wire cross-section (rigid) max. 2.5 mm², you need to register in the DOCUTHEK. wire cross-section AWG/kcmil min. 24, wire cross-section AWG/kcmil max. 12, 12 A. -
Page 26: Certification
Eurasian Customs Union Certification Declaration of conformity The products FCU 500 meet the technical specifica- tions of the Eurasian Customs Union (the Russian We, the manufacturer, hereby declare that the product Federation, Belarus, Kazakhstan). FCU 500 complies with the essential requirements of the following Directives and Standards: Directives: –...
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