Siemens 6RA70 specifications Cause as a function of fault value

Fault	Description
No.	Cause as a function of fault value	Further information (r047.002 to r047.016)
	(r047.001, r949.001 or r949.009 with acknowledged error)

F039 I2t power section monitor has responded (active in operating states of – –, I, II)

This monitoring function responds if the calculated I2t value of the power section reaches the permissible value for the power section concerned (see also P075).

Possible fault causes

♦ Drive has been operating at overload for too long ♦ Parameter P075 is incorrectly set

♦ Parameter P077 is incorrectly set

F040 Electronics supply disconnected in active fault status (active in all operating states)

This fault message is activated if the electronics power supply has been disconnected, even though a fault was displayed and not yet acknowledged.

Possible fault causes

♦Not all fault messages have been acknowledged

Fault value:

Last active fault message

F041 Ambiguous selection of parameter set or ramp-function generator (active in all operating states)

♦While an optimization run is in progress, the function data set selection must not be changed. Fault F041 is displayed if another, different function data set is selected while an optimization run is being executed.

♦Check whether ramp-function generator parameter set 1 or 2 or 3 (parameters P303 to P314) is clearly selected. If parameter sets 2 and 3 are selected simultaneously for more than 0.5s, then fault message F041 is displayed. While the parameter set selection is ambiguous, the system continues to apply the last clearly identified ramp-function generator parameters.

Possible fault causes

♦P676 or P677 (selection of binectors which determine the active function data set in control word 2, bits 16 and 17) is incorrectly set

♦P637 or P638 (selection of binectors which determine ramp-function generator setting) is incorrectly set

Fault value:

2The selection of the function data set has been changed during an optimization run

3Ambiguous selection of ramp-function generator parameter set

Siemens Energy & Automation	9-11
SIMOREG DC Master Base Drive Panel	Operating Instructions