Modules And Their Function; Fitted Modules; Notice Regarding Fitted Modules; Bct531 (Hmi) User Interface - Bosch Control 8313 Service Instructions For Contractors

Modules and their function

3 Modules and their function
3.1

Fitted modules

All modules fitted in the control unit are listed in the following table. The
description also includes the FM-MM, FM-MW and FM-SI modules.
Module

BCT531 (HMI) user interface

Central module ZM5313
NM582 power supply module
Function module (e.g. FM-MM)
FM-RM function module
Table 2 Modules and their functions
[X] Standard equipment
[O] Optional equipment
2
3
1
8
Fig. 1 Overview of slots
[1] Slot A (central module)
[2] Slot B (power supply module)
[3] Slot 1
[4] Slot 2
[5] Slot 3
[6] Slot 4
[7] Slot C
[8] User interface
3.1.1

Notice regarding fitted modules

The additional modules can be installed in any free slot 1...4. In doing so,
make sure that the power supply leads from module to module. We
recommend that you insert the modules in order from left to right to
ensure the heating circuits are logically numbered.
When using the following modules, it is advisable to mount them at
specific slots.
FM-AM
The module only affects the control unit in which it is fitted. If the module
is installed in the master control unit with address 0, it is effective for the
connected boiler(s). If the module is fitted in a substation, it will respond
to the heat requirement issued by that substation.
FM-SI
Due to the length of the SI connecting lead, the safety module should be
mounted at slot 1.
6
Slot CC 8313
HMI X
A X
B X
1...4 O
C O
4
5
6
7
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FM-CM (cascade module)
To avoid interrupting the heating circuit numbering and as the FM-CM
has no supply voltage output, it should be mounted at slot 4 (on the far
right). If several cascade modules are used, assembly should start from
the right. With several control units, the FM-CM in the master control unit
must be installed with the address 0.
FM-RM
The module can only be installed at slot C.
FM-MW
Each control unit can only support 2 DHW heating systems, e.g. DHW
heating via the central module (ZM) and via the FM-MW.
3.2 BCT531 (HMI) user interface
The user interface is equipped with a touch screen. Information is
displayed and commands entered at the touch screen.
The user interface is equipped with a USB interface for service
purposes.
The control unit address is set on reverse side.
1
6 5 4 3
Fig. 2 User interface
[1] Touch screen
[2] Reset button (e.g. high limit safety cut-out, SAFe)
[3] Chimney sweep button (Flue gas test)
[4] Key for manual operation
[5] USB interface for service purposes (behind cover)
[6] LED status display
Function buttons
The function buttons enable
• Manual operation
• Flue gas test
• Reset (e.g. high limit safety cut-out, SAFe)
Control 8313 – 6720859567 (2017/03)
2
0010005507-001