Siemens 6RA70 specifications 10-24, Magnetization characteristic field characteristic

PNU	Description	Value range	No. indices	See
		[Unit]	Factory	Change
		Steps	setting	(Access /
			Type	Status)
P119	Rated speed	0.0 to 199.9	Ind: 4	P052 = 3
	Speed at which an actual EMF value as set in parameter P118 is reached at	[%]	FS=100.0	P051 = 40
FDS		0.1%	Type: O2	Offline
	full field (according to parameter P102).
	This parameter is set automatically during the optimization run for field
(G165)	weakening (P051=27) and specifies in this case the field-weakening
	activation limit speed.
	Note:
	As regards the closed-loop field-weakening control, only the ratio between
	P118 and P119 is relevant. When the setting in P100, P101 or P110 is
	changed subsequently, the field-weakening optimization run need not be
	repeated. However, P119 then no longer defines the field-weakening
	activation limit speed.
	When the setting in parameter P102 is changed subsequently, the field-
	weakening optimization run must be repeated, the same applies if the
	maximum speed setting is subsequently re-adjusted.

Magnetization characteristic (field characteristic)

Parameters P120 to P139 determine the curve shape of the magnetization characteristic (field characteristic) in normalized representation (see example field characteristic below for further details).

Note:

When the setting in parameter P102 is changed subsequently, the field-weakening optimization run must be repeated, because this alters the degree of saturation and thus the shape of the magnetization characteristic. (When parameter P100, P101 or P110, or the maximum speed adjustment, is subsequently altered, the settings in P120 to P139 remain the same, but the values in P118 and/or P119 are changed).

r120	Field current for 0% motor flux (field characteristic, point no. 0)	0.0		Ind: 4	P052	= 3
FDS		[% of P102]		Type: O2
(G165)		0.1% of P102
(G166)
P121	Field current for 5% motor flux (field characteristic, point no. 1)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[%]		FS=3.7	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P122	Field current for 10% motor flux (field characteristic, point no. 2)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=7.3	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P123	Field current for 15% motor flux (field characteristic, point no. 3)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=11.0	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P124	Field current for 20% motor flux (field characteristic, point no. 4)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=14.7	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P125	Field current for 25% motor flux (field characteristic, point no. 5)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=18.4	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P126	Field current for 30% motor flux (field characteristic, point no. 6)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=22.0	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P127	Field current for 35% motor flux (field characteristic, point no. 7)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=25.7	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P128	Field current for 40% motor flux (field characteristic, point no. 8)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=29.4	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P129	Field current for 45% motor flux (field characteristic, point no. 9)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=33.1	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
P130	Field current for 50% motor flux (field characteristic, point no. 10)	0.0 to 100.0		Ind: 4	P052	= 3
FDS		[% of P102]		FS=36.8	P051	= 40
(G165)		0.1% of P102		Type: O2	Offline
(G166)
10-24			SIEMENS Energy & Automation
	SIMOREG DC Master Base Drive Panel Operating Instructions