SA-BM Base Module
18
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
Interfaces and Operation
First installation and Accepting the system configuration
Configurations can only be set or altered using the switches
and terminals when the whole system is switched off, i.e.
when there is no operating voltage on terminals
A1/A2
on
any base module. After the required functions and control
circuit functions have been set on all the modules in the
system (using the rotary switches and external circuitry on
terminals
S1
,
S2
,
S3
respectively), operating voltage must
be connected while the
ENTER
button on the SA-BM base
module is pressed and held. As soon as the
FLT
indicator
starts blinking the
ENTER
button must be released within 3
seconds. Then the selected mode is saved in non-volatile
form and active. If the
ENTER
button is pressed for longer
than 5 seconds after the LED has started blinking, the
FLT
display will indicate a fault (blinking light).
Terminals
S1
,
S2
,
S3
serve not only to set the mode; they
can also be used for feedback-circuit monitoring of
connected relays and contactors. This means that the
terminal signals change during operation (opened
contact). The set mode remains unaffected because it is
only detected, checked and saved when the system is
switched on or restarted.
Because the relay expansion modules are not directly inte-
grated in the communication or diagnosis of the
samos
system via the internal safety bus, changes in their
input/output circuitry are registered only indirectly via the
feedback circuits.
___________________________________________________________________________
Manipulation, handling errors and operating errors during operation
Manipulating the system configuration (e.g. operating a
rotary switch or adding or removing modules causes
immediate canceling of enabling. To assist in setting the
valid configuration the green
PWR
LED on the module
changes from blinking to continuous when the respective
switch position has been restored. A restart (switch off
and on again) under the set Reset condition is possible
when the former configuration has been restored. The
ENTER
key has no effect during operation.
If the new configuration is to be adopted you have to go
through the “accept configuration” procedure described
above.
We recommend keeping a record of the configuration
with the documentation or in a clearly visible place in the
enclosure. One way to check the system configuration is to
output a checksum of the configuration data via a connected
bus coupler module.
There is a separate manual for the bus coupler modules
(see page 70).
Accepting
configuration
NOTES
Handling errors
NOTES
There is a blank confi-
guration list for copying
inside the back cover.
Notes on downloading an
online version on page 74.
Содержание samos
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