SIEMENS Energy & Automation 10-33
SIMOREG DC Master Base Drive Panel Operating Instructions
PNU
Description Value range
[Unit]
Steps
No. indices
Factory
setting
Type
See
Change
(Access /
Status)
P176
*
FDS
(G162)
Source for variable Integration time [SW 1.8 and later]
The content of the selected connector acts as the integration time for the
armature current controller after multiplication with P156.
All connector
numbers
1
Ind: 4
FS=1
Type: L2
P052 = 3
P051 = 40
off-line
P177
*
BDS
(G163)
Source for the command "no immediate pulse disable"
[SW 1.8 and later]
A low signal causes the armature firing pulses to be disabled immediately
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.
All binector numbers
1
Ind: 2
FS=1
Type: L2
P052 = 3
P051 = 40
off-line
P178
*
BDS
(G163)
Source for the command "fire all thyristors simultaneously"
[SW 1.8 and later]
Setting this command (high signal) causes all six thyristors of the thyristor
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 .
All binector numbers
1
Ind: 2
FS=0
Type: L2
P052 = 3
P051 = 40
off-line
P179
FDS
(G163)
Additional Alpha W pulses with disabled second pulses
[SW 1.9 and later]
Number of additional Alpha W pulses with disabled second pulses after
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)
0 to 100
1
Ind: 4
FS=0
Type: O2
P052 = 3
P051 = 40
on-line
P180
FDS
(G160)
Positive torque limit 1
-300.00 to 300.00
[%]
0.01%
of rated motor torque
Ind: 4
FS=300.00
Type: I2
P052 = 3
P051 = 40
Online
P181
FDS
(G160)
Negative torque limit 1
-300.00 to 300.00
[%]
0.01%
of rated motor torque
Ind: 4
FS=-300.00
Type: I2
P052 = 3
P051 = 40
Online
P182
FDS
(G160)
Positive torque limit 2
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
P184, then torque limit 2 is activated in place of torque limit 1.
-300.00 to 300.00
[%]
0.01%
of rated motor torque
Ind: 4
FS=300.00
Type: I2
P052 = 3
P051 = 40
Online
P183
FDS
(G160)
Negative torque limit 2
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
P184, then torque limit 2 is activated in place of torque limit 1.
-300.00 to 300.00
[%]
0.01%
of rated motor torque
Ind: 4
FS=-300.00
Type: I2
P052 = 3
P051 = 40
Online
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