System Monitoring - Siemens SIRIUS M200D Manual

Functions

3.7 System monitoring

Messages and actions
Temperature sensor - overload
Temperature sensor wire break
Temperature sensor short circuit
Temperature sensor deactivated
Overload tripping
3.7 System monitoring
3.7.1 Current limit values
Description
The motor current and current limit values can be used to determine different system
statuses:
Motor operates more sluggishly,
e.g. because bearings are
damaged. Motor operates more
smoothly, e.g. because it has
run out of processing material.
Motor blocked
Motor runs at no load (e.g.
because system is damaged)
Response to residual current detection
Residual current detection responds if the motor current drops below 18.75% of the set rated
operating current in all 3 phases.
With this device parameter, you determine how the motor starter is to behave in the case of
residual current detection:
● Warning
● Trip
Note
When the motor is switched on, residual current detection is suppressed for around
1 second.
48
Message
System status
Current is higher or lower than
normal
Very high current flowing
Very low current flowing
(< 18.75% of I
Dependent on parameterization
Dependent on parameterization
Dependent on parameterization
No motor protection through temperature sensor;
motor protection required by means of motor
model.
Trip (overload, wire break or short circuit
pending)
Current value
Current limit values
Blocking protection
Residual current detection
)
e
Manual, 08/2014, A5E01577426A/RS-AA/004
Action
Protection by
M200D PROFIBUS/PROFINET