Siemens 6RA70 F034 Fault message from free function block FB5, F035 Drive is blocked

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)
F034	Fault message from free function block FB5
	(active in all operating states)
	Fault value:
	1	the binector wired via parameter U103 Index.001 is in the state log.”1”
	2	the binector wired via parameter U103 Index.002 is in the state log.”1”
	3	the binector wired via parameter U103 Index.003 is in the state log.”1”
	4	the binector wired via parameter U103 Index.004 is in the state log.”1”

9.1.2.7Drive faults

F035	Drive is blocked
	(active in operating states of – –, I, II)

This monitoring function responds if the following conditions are fulfilled for longer than the period set in parameter P355:

♦Positive or negative torque or armature current limit

♦The armature current is higher than 1% of the converter rated armature DC current

♦The actual speed is less than 0.4% of maximum speed

Possible fault causes

♦Drive is blocked

F036 No armature current is flowing (active in operating states of – –, I, II)

This monitoring function responds if the armature firing angle is at the rectifier stability limit for more than 500 ms and the armature current is less than 1% of the converter rated armature DC current.

Possible fault causes

♦Armature circuit is open

(e.g. DC fuses have blown, open circuit, etc.)

♦Rectifier stability limit αG (P150) is incorrectly set

♦Drive is operating at αG limit (e.g. due to supplyundervoltage

♦EMF is too high because maximum speed setting is too high, refer to P083, P115, P143, P741)

♦EMF is too high because field weakening is not selected (refer to P082)

♦EMF is too high because field current is set too high (refer to P102)

♦EMF is too high because transition speed for field weakening is set too high (refer to P101) ??

F037 I2t motor monitor has responded (active in operating states of – –, I, II)

This monitoring function responds when an I2t value is reached which corresponds to the final temperature at 110% of the rated motor armature current.

Possible fault causes

♦Parameter P114 is incorrectly set

♦Drive has been operating for too long at >110% of rated motor armature current

F038 Overspeed

(active in operating states of – –, I, II)

This fault message is activated if the actual speed value (selected in P595) exceeds the positive (P380) or negative (P381) threshold by 0.5%.

Possible fault causes

♦Lower current limit has been input

♦Current-controlled operation

♦P512, P513 are set too low

♦Tachometer cable contact fault in operation close to maximum speed

9-10	Siemens Energy & Automation
	SIMOREG DC Master Base Drive Panel Operating Instructions