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Functions
8.10 Response to bus errors / Control via digital input
Parameters
Parameter
Control via digital input
Note that for the settings "Manual activation" and "No change on bus error", the
3RW52 soft starter switches to the "Automatic" mode after installation of the
3RW5 communication module to the 3RW52 soft starter.
If, on failure of the bus connection or CPU stop, the 3RW52 soft starter remains in the
"Automatic" mode or switches to the "Automatic" mode, you can switch to the operating
mode "manual - local" by means of the following procedures:
Via a 3RW5 HMI or SIRIUS Soft Starter ES (TIA Portal) over the local interface on the
3RW5 HMI High Feature (Page 35).
Change the setting of the parameter "Control via digital input" by means of a key
combination on the 3RW52 soft starter (Page 108).
Remove the 3RW5 communication module. Then restore the 3RW52 soft starter on the
device to the factory setting (Page 203) in order to switch to the
"Manual operation local - Input controlled" mode.
Additional information
You will find further information in chapter Operating modes and master control function
(Page 32).
You will find further information about operation on failure of the bus connection to the
control in the manual for the 3RW5 communication module in question.
You will find further information on removal of the 3RW5 communication module in the
manual of the relevant 3RW5 communication module.
148
Description
Manual activation
On failure of the bus connection or a CPU stop the 3RW52 Soft Starter
remains in the "Automatic" mode or the 3RW52 Soft Starter switches
to the "Automatic" mode.
Permanent activation
A switch to the "Automatic" mode and operating mode "manual - bus"
is not possible. If the 3RW52 soft starter is in the "Automatic" or
"manual - bus" mode, the 3RW52 soft starter switches to the
"Manual operation local - input controlled" mode. Control by means of
a higher-level control (e.g. PLC) is not possible.
Activate on bus error (factory setting)
On failure of the bus connection or a CPU stop, the
3RW52 Soft Starter switches from the "Automatic" mode to the
"Manual operation local - input controlled" mode or the
3RW52 Soft Starter remains in the operating mode "manual - local"
mode.
No change on bus error
On failure of the bus connection or a CPU stop the master control
function does not switch, but the 3RW52 Soft Starter remains in the
current mode.
Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
SIRIUS 3RW52 Soft Starter
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