English - Buderus EM10 für UBA 3 Serviceanleitung

Modul EM10

English

Range of application
The module EM10 may be installed in boilers equipped
with a UBA3/EMS/MC10.
Function of the EM10
– The module EM10 relays a signal when a blocking
malfunction occurs in the boiler. System faults and
service announcements are not reported.
– The module EM10 does not react to malfunctions of any
external controllers which may be installed.
– In addition, the flow temperature of the boiler can be
influenced by means of an external control voltage of
0 – 10 V (rectified voltage).
– Or can be used to control the power using an external
control signal.
Mounting
Mount the module EM10 as described in "Mounting
instructions function module xM10".
Connection
Connect the module EM10 with a two-core cable leading
from the EMS-connection (fig. 1, pos. 1) to the
RC-connection on the external connection board of the
boiler (fig. 1, pos. 2). The connection is polarity sensitive.
Malfunction signal
The generated malfunction signal is given in two ways:
a) AS 24V connection (fig. 2, pos. 1)
The AS 24V connection is a volt-free connection for low
voltage malfunction signals of up to 24V, which can be
evaluated by an automated building control system.
AS 24V no malfunction
connection
1 and 2 interrupted
2 and 3 closed
See also the "Wiring Diagram" on page 19.
b) AS 230V connection (fig. 2, pos. 2)
The AS 230V connection is a 230V connection which can
be used to pass on an external malfunction signal to a
horn or warning light. At times of a malfunction, there will
be 230V on connections 2 and 4. The malfunction signal
is active when:
– the UBA 3 has a locking fault code, or
– the system pressure is too low, or
– there has been no communication with the boiler for at
least 5 minutes.
Subject to changes due to technical improvements!
Module EM10 • 06/2005
malfunction
closed
interrupted
AS (230V)
2
Fig. 1 Connection module to the boiler (example
pictured: shows the Logamax plus GB142
with a wall-mounted module)
AS (230V)
3 2
Fig. 2 Connections
English
AS (24V)
1
AS (24V)
1 4
9