Siemens 6RA70 specifications 10-33

PNU

Description

Value range [Unit] Steps

No. indices Factory setting Type

See Change (Access / Status)

P176	Source for variable Integration time	[SW 1.8 and later]
*	The content of the selected connector acts as the	integration time for the
FDS
	armature current controller after multiplication with P156.
(G162)

P177	Source for the command "no immediate pulse disable"
*	[SW 1.8 and later]
BDS	A low signal causes the armature firing pulses to be disabled immediately
(G163)	without waiting for the I=0 signal or without outputting alpha-W pulses for
	current reduction. The additional alpha-W pulses (acc. to parameter P161)
	are not output either. As long as this command is pending, it is not possible
	to fall below operating state o1.6.
	This command can be used, for example, if it is not a motor that is supplied
	by the SIMOREG DC Master but a field and the current is to be reduced via
	an external parallel-connected de-excitation resistance.

P178	Source for the command "fire all thyristors simultaneously"
*	[SW 1.8 and later]
BDS	Setting this command (high signal) causes all six thyristors of the thyristor
(G163)	bridge I to be fired continuously and simultaneously. Switchover to long
	pulses is automatic. This command is only active if no line voltage is applied
	to the armature power section .

P179	Additional Alpha W pulses with disabled second pulses
FDS	[SW 1.9 and later]
	Number of additional Alpha W pulses with disabled second pulses after
(G163)	detection of I=0 message prior to a change in torque direction.
	It is particularly important to set this parameter to values of > 0 for converter
	armatures which supply large inductances (e.g. lifting solenoids).
	These pulses cause the current to decay before a change in torque
	direction; the thyristors are fired in pairs to prevent sudden chopping, and
	the generation of a surge voltage by the load inductor, when the current
	drops below the thyristor holding current.
	When a change in torque direction is required, the current in the existing
	direction must be reduced.
	This is achieved in the following ways:
	If P179 > 0:
	1) Alpha W pulses with enabled second pulses
	until the I=0 signal arrives
	2) Additional Alpha W pulses with enabled second pulses
	(number as set in P179.F)
	3) Additional Alpha W pulses with disabled second pulses
	(number as set in P161.F)
	4) Additional torque-free interval (period as set in P160.F)
	If P179 = 0:
	1) Alpha W pulses with disabled second pulses
	until the I=0 signal arrives
	2) Additional Alpha W pulses with disabled second pulses
	(number as set in P161.F)
	3) Additional torque-free interval (period as set in P160.F)
P180	Positive torque limit 1
FDS
(G160)
P181	Negative torque limit 1
FDS
(G160)
P182	Positive torque limit 2
FDS	If "Torque limit switchover" is selected (state of binector selected in P694
	=1) and the speed is higher than the threshold speed set in parameter
(G160)	P184, then torque limit 2 is activated in place of torque limit 1.
P183	Negative torque limit 2
FDS	If "Torque limit switchover" is selected (state of binector selected in P694
	=1) and the speed is higher than the threshold speed set in parameter
(G160)	P184, then torque limit 2 is activated in place of torque limit 1.

All connector numbers

1

All binector numbers 1

All binector numbers 1

0 to 100

1

-300.00 to 300.00 [%] 0.01%

of rated motor torque

-300.00 to 300.00 [%] 0.01%

of rated motor torque

-300.00 to 300.00 [%] 0.01%

of rated motor torque

-300.00 to 300.00 [%] 0.01%

of rated motor torque

Ind: 4	P052	= 3
FS=1	P051	= 40
Type: L2	off-line
Ind: 2	P052	= 3
FS=1	P051	= 40
Type: L2	off-line

Ind: 2	P052	= 3
FS=0	P051	= 40
Type: L2	off-line
Ind: 4	P052	= 3
FS=0	P051	= 40
Type: O2	on-line

Ind: 4	P052	= 3
FS=300.00	P051	= 40
Type: I2	Online
Ind: 4	P052	= 3
FS=-300.00	P051	= 40
Type: I2	Online
Ind: 4	P052	= 3
FS=300.00	P051	= 40
Type: I2	Online
Ind: 4	P052	= 3
FS=-300.00	P051	= 40
Type: I2	Online

SIEMENS Energy & Automation	10-33
SIMOREG DC Master Base Drive Panel Operating Instructions