Siemens SIRIUS 3RA6 System Manual page 58

3RA61/3RA62 compact starter
5.3 Functions
Display concept
The "Overload tripped" status is indicated by the following elements:
Table 5- 6
Actuator
READY
Function test
To test the overload protection function, press the "TEST " button ("Overload protection
function" test button). Press the test button for approximately 5 seconds. The compact starter
must be switched on while pressing the button and a load current of I
circuit.
When the test button is pressed, the evaluation electronics simulate an overload that causes
tripping and switches the "Overload" signaling contact (95, 96, 98).
Please observe a minimum waiting time of 10 seconds before resetting the compact starter
manually using the blue reset button. If the "manual/auto reset" selector switch is set to "A",
the compact starter automatically resets after approximately 3 minutes.
Motor model
Depending on the operating time and the current load, the electronics continuously calculate
a model of the thermal load of the motor. The motor model charges when the compact
starter is switched on. The motor model discharges after switching off. The motor model is
fully discharged after approximately 3 minutes.
If you carry out a manual reset within 3 minutes although the motor model has not yet
sufficiently discharged, another overload trip can occur when the compact starter is switched
on.
58
Overload trip display elements (direct starter/reversing starter)
Mech. display
TRIP
White display
Compact starter status
Overload tripped
System Manual, 09/2014, NEB560060102000/RS-AA/006
must flow in the main
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SIRIUS 3RA6 compact starter