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Functions
8.8 Condition Monitoring
Parameters
Parameters
Preset starting time
(identical to the parameter of
the Automatic parameteriza‐
tion (Page 132))
Upper limit - maintenance de‐
manded
Lower limit - maintenance de‐
manded
8.8.6
Pump cleaning function
Operating principle
The pump cleaning function provides support with maintaining pump systems by preventing an
imminent blockage or, up to a point, also clearing an existing blockage. Pump cleaning is only
possible if the pump is switched on, if one or both control commands "Motor CW" or "Motor CCW"
is present, and if there is no internal trip command (e.g. disconnection due to motor overload
trip) or the internal trip command is ignored by the "Emergency start" (Page 189) function.
Cancellation of the control command or occurrence of an internal trip command while
emergency start is inactive causes the pump cleaning process to be aborted.
You will find further information on the pump cleaning function in the Internet under the FAQs
(https://support.industry.siemens.com/cs/ww/en/view/109761112).
Application
• Clearance of blockages and dirt from water pipes, filters, and pump blades
182
Description
The following limits for starting time monitoring refer to this parameter.
The setting "0 s" deactivates starting time monitoring.
•
Factory setting: 10 s
•
Setting range: 0 ... 360 s
•
In steps of: 0.1 s
If the ACTUAL starting time exceeds this limit, a warning is generated. The motor is not shut off.
If this limit has not been exceeded at the end of the motor starting phase, then any pending
warning is reset.
The setting "0%" deactivates the monitoring of the limit value.
•
Factory setting: 0%
•
Setting range: 0 ... 400%
•
In steps of: 1%
If the ACTUAL starting time fails to reach this lower limit, a warning is generated. The motor is
not shut off.
If this lower limit is reached at the end of the motor starting phase, then any pending warning
is reset.
The setting "0%" deactivates the monitoring of the limit value.
•
Factory setting: 0%
•
Setting range: 0 ... 100%
•
In steps of: 1%
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
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