Siemens SIRIUS 3RA6 System Manual page 116

3RA64/3RA65 compact starter with IO-Link
6.6 Functions
Display concept
The status "Overload tripped" is indicated via the LEDs on the 3RA64/3RA65 compact
starter with IO-Link. For information, please refer to " Diagnostics (Page 118) ".
Messages via IO-Link
You can find information about the parameters in Parameters (Page 104).
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 must flow in the main
circuit.
When the test button is pressed, the evaluation electronics simulate an overload that causes
tripping and activates the overload message via IO-Link. The "Group fault" LED also lights
up.
Motor model
Depending on the operating time of the motor and the current load, the electronics
continuously calculate the thermal load of the motor on the basis of a model. 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.
Interruption of the auxiliary voltage V
If an interruption of the auxiliary voltage (V
starter, the motor model is deleted.
If this interruption takes place within 3 minutes after switching off the compact starter, the
time until auto reset is extended by the duration of the interruption to the auxiliary voltage.
Note
Danger of another overload trip after an interruption to V
The motor model is deleted following an interruption to V
out following an interruption to V
yet have cooled sufficiently.
Do not switch the compact starter on again until the motor has cooled sufficiently.
116
Aux
Aux
, another overload trip can result since the motor will not
Aux
= 0) occurs on the 3RA64/3RA65 compact
!
Aux
. If, therefore, a reset is carried
Aux
System Manual, 09/2014, NEB560060102000/RS-AA/006
SIRIUS 3RA6 compact starter