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PNU
Description
P176
Source for variable Integration time
*
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"
*
BDS
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
(G163)
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"
*
BDS
Setting this command (high signal) causes all six thyristors of the thyristor
bridge I to be fired continuously and simultaneously. Switchover to long
(G163)
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
Number of additional Alpha W pulses with disabled second pulses after
detection of I=0 message prior to a change in torque direction.
(G163)
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
If "Torque limit switchover" is selected (state of binector selected in P694
FDS
=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.
(G160)
P183
Negative torque limit 2
If "Torque limit switchover" is selected (state of binector selected in P694
FDS
=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.
(G160)
SIEMENS Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
Value range
[Unit]
Steps
[SW 1.8 and later]
All connector
numbers
1
All binector numbers
[SW 1.8 and later]
1
All binector numbers
1
[SW 1.8 and later]
0 to 100
[SW 1.9 and later]
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
No. indices
See
Factory
Change
setting
(Access /
Type
Status)
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
10-33
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