Siemens SIRIUS M200D - System Monitoring

Functions
3.7 System monitoring
M200D PROFIBUS/PROFINET
48 Manual, 08/2014, A5E01577426A/RS-AA/004
Messages and actions
Message
Action
Temperature sensor - overload Dependent on parameterization
Temperature sensor wire break Dependent on parameterization
Temperature sensor short circuit Dependent on parameterization
Temperature sensor deactivated No motor protection through temperature sensor;
motor protection required by means of motor
model.
Overload tripping Trip (overload, wire break or short circuit
pending)
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:
System status
Current value
Protection by
Motor operates more sluggishly,
e.g. because bearings are
damaged. Motor operates more
smoothly, e.g. because it has
run out of processing material.
Current is higher or lower than
normal
Current limit values
Motor blocked Very high current flowing Blocking protection
Motor runs at no load (e.g.
because system is damaged)
Very low current flowing
(< 18.75% of I
e
)
Residual current detection
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.