Current Monitoring - Siemens SIRIUS 3RW55 Equipment Manual

Setting options
• 3RW5 HMI High Feature
Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Condition Monitoring"
Access protection to the 3RW5 HMI High Feature is not active or has been reset.
• With SIRIUS Soft Starter ES (TIA Portal) via the local interface on the 3RW5 HMI High Feature
Brief overview: Window "Project Navigation" with current project under created Soft Starter
> "Parameters" > Window "Work area" >"Soft Starter > Parameter set 1 / 2 / 3 > Condition
Monitoring"
• With a fieldbus via a 3RW5 communication module:
– With SIRIUS Soft Starter ES (TIA Portal) Premium / Professional (only via a 3RW5 PROFINET
– Configuration software of the control system (e.g. STEP 7 with corresponding HSP)
– User program
You can find additional information on the parameters that can be set via the fieldbus in the
manual of the respective 3RW5 communication module.
8.8.2

Current monitoring

Operating principle
The current flow is influenced by the loading status of the motor.
• If the motor current is increased, this indicates bearing damage, for example.
• If a very low motor current is flowing, this can indicate a broken conveyor belt or a motor in
no-load operation.
• If a very high motor current is flowing, this can indicate a blocked system and an overloaded
motor.
The current monitoring is deactivated automatically during starting and stopping. The rated
operational current I
Setting via 3RW5 HMI High Feature
• Menu: "Parameters > Soft Starter > Parameter set 1 / 2 / 3 > Condition Monitoring > Current
monitoring"
• Access protection to the 3RW5 HMI High Feature is not active or has been reset.
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
or PROFIBUS communication module)
Brief overview: See SIRIUS Soft Starter ES (TIA Portal) via the local interface on the
3RW5 HMI High Feature
acts as a reference value for the current limit monitoring function.
e
Functions
8.8 Condition Monitoring
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