Krom Schroder BCU 500, FCU 500 Operating Instructions Manual

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➔ www.docuthek.com

Operating instructions

Power module and parameter chip card for control units BCU 500, FCU 500

© 2012 Elster GmbH · Edition 10.12

Translation from the German

Contents

Contents

Power module and parameter chip card

for control units BCU 500, FCU 500 ........

Contents ..............................

Safety.................................

Checking the usage .....................

Replacing the power module

and parameter chip card.................

Assistance in the event of malfunction .....4

Technical data .........................4

Contact ...............................4

Safety

Safety

Please read and keep in a safe place

carefully before installing or operating. Following the
installation, pass the instructions on to the opera­tor. 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-com­pliant use.

Safety instructions

Information that is relevant for safety is indicated in
the instructions as follows:

Please read through these instructions

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.

Transport

On receipt of the product, check that the delivery is
complete (see Part designations). Report any trans­port damage immediately.

Storage

Store the product in a dry place. Ambient tempera­ture: see Technical data.

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Checking the usage

Power module

Suitable for control units BCU500 or FCU500. With
relay contacts for the fail-safe outputs, e.g. for fan,
butterfly valve and valves. To replace a power mod­ule with the same identification number if fault 36
is displayed.

Identification number– see type label.

FCU 500

Parameter chip card

The parameter chip card is required for operation of

control units BCU500 or FCU500. All the parameters
specific to the system are saved on the parameter
chip card. To replace a parameter chip card with
identical type code, see type label.

Type code

Code Description
500 Parameter chip card for BCU/FCU500
Q
W
C0
C1

F0
F1
F2

H0
H1

K0
K1
K2

Mains voltage: 120 V AC, 50/60 Hz

230 V AC, 50/60 Hz

No tightness control or POC

With tightness control or POC

Capacity control:

none

with interface for actuator IC

with interface for RBW

Temperature monitoring:

none

with temperature monitoring

Connection terminals:

none

screw terminals

spring force terminals

Type code– see type label.

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Replacing the power module and parameter chip card

 Switch off the system.

2

 Detach the FCU or BCU from the DIN rail in

order to facilitate replacing the power module
or parameter chip card.

4 5

▷

If an incorrect or defective power module is used,
the display of the control unit shows the blinking
message

on commissioning.

36

7 Slide on the (new) power module.
8 Place the control unit onto the DIN rail.
9 Reconnect the connection terminals.

▷ Ensure correct terminal assignment.

WARNING

Risk of explosion! Do not enable the control unit for
operation until the parameter settings and wiring
are correct and the faultless processing of all input
and output signals has been ensured.

0 Commission the control unit as described in the

operating instructions for the control unit.

6 Having removed the power module, replace the

parameter chip card if required.

▷

The type codes (see type label) of the old and

new parameter chip card must be identical.

▷ If an incorrect or defective parameter chip card

is used, the display of the control unit shows the
blinking message on commissioning.

▷

The identification numbers of the old and new

power module must be identical.

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Assistance in the event of malfunction

▷

Further fault messages can be found in
the operating instructions of the relevant
control unit.

DANGER

Electric shocks can be fatal! Before working on
possible live components, ensure the unit is discon­nected from the power supply.
Fault-clearance must only be undertaken by author­ized, trained personnel.

▷ Faults may be cleared only using the measures

described below.

▷

If the control unit does not respond even though
all faults have been remedied: remove the unit
and return it to the manufacturer for inspection.

? Faults
! Cause

• Remedy

? The 7-segment display does not light up.
! Mains voltage is not applied.

• Check the wiring, apply mains voltage (see type

label).

3 6

? The display blinks and indicates
! Incorrect power module, faulty parameterization.

• Check parameter settings using BCSoft.
! The unit has suffered an internal fault.
! No power module.
! Relay contact does not open.

• Remove the unit and return it to the manufacturer

for inspection.

? The display blinks and indicates
! Parameter chip card (PCC) not correct, defective

or missing.

• Only the intended parameter chip card is to be

used.

• Replace defective parameter chip card.

36

.

.

Technical data

Connection terminals:
Screw terminals:
nominal cross-section 2.5mm²,
wire cross-section (rigid) min. 0.2mm²,
wire cross-section (rigid) max. 2.5mm²,
wire cross-section AWG/kcmil min. 24,
wire cross-section AWG/kcmil max. 12,

12 A.

Spring force terminals:
nominal cross-section 2 x 1.5mm²,
wire cross-section min. 0.2mm²,
wire cross-section AWG min. 24,
wire cross-section AWG max. 16,
wire cross-section max. 1.5mm²,
rated current 10 A (8A UL),
to be observed in case of daisy chain.
Contact rating:
control outputs LDS (terminal16), purge (termi­nal17), HT (terminal18), safety interlocks (termi­nal57): max. 0.5 A, cos ϕ = 1,
gas valves V1 (terminal13), V2 (terminal14), V3
(terminal15): max. 1 A, cos ϕ = 1,
air valve (terminals 53, 54 and55): max. 50 mA,
cos ϕ = 1.

The total current for the simultaneous activation of

outputs V1, V2, V3, HT, purge, LDS, safety inter­locks and air valve must not exceed 2.5A.
24 V DC signal for fault/operation: max. 0.1 A,
fan: max. 3 A (start-up current: 6A<1s).
Number of operating cycles of power module:
control outputs LDS (terminal16), purge (ter­minal17), HT (terminal18), safety interlocks
(terminal57),
gas valves V1 (terminal 13), V2 (terminal14), V3
(terminal15),
air valve (terminals 53, 54 and55),
fan (terminal 58):
max. 250,000.

Contact

Contact

If you have any technical questions, please contact
your local branch office/agent. The addresses are
available on the Internet or from ElsterGmbH.

We reserve the right to make technical modifications
in the interests of progress.

Strotheweg 1, D-49504 Lotte (Büren)

Elster GmbH

Tel. [phone]

Fax [phone]

[e-mail], www.kromschroeder.com

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