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Siemens 6RA70 Series Instructions Manual Page 152

Microprocessor-based converters from 15a to 1680a for variable speed dc drives.
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PNU
Description
P154
Set armature current controller I component to zero
*
0
Set controller I component to zero (i.e. to obtain pure P
FDS
controller)
(G162)
1
Controller I component is active
P155
Armature current controller P gain
Proportional gain of armature current controller
FDS
This parameter is automatically set during the optimization run for precontrol
and current controller (armature and field) (P051=25).
(G162)
See also parameter P175
P156
Armature current controller reset time
This parameter is automatically set during the optimization run for precontrol
FDS
and current controller (armature and field) (P051=25).
(G162)
See also parameter P176
P157
Control word for current setpoint integrator
*
0
Reduced gearbox stressing
FDS
The integrator is active only after a change in torque direction
(acts as ramp-function generator for armature current setpoint
(G162)
only until the output reaches the setpoint at the integrator input
for the 1
1
Current setpoint integrator
The integrator is always active (acts as ramp-function generator
for the armature current setpoint)
P158
Ramp-up time for current setpoint integrator (reduced gearbox
stressing)
FDS
Period of an acceleration ramp with a setpoint step change from 0% to
100% at r072.002.
(G162)
For older DC machines (i.e. unsuitable for steep rates of current rise),
P157=1 and P158=0.040 must be set.
P159
Switchover threshold for auto-reversing stage (armature)
FDS
(G163)
P160
Additional torque-free interval
Additional torque-free interval for torque direction change in 4Q operation.
FDS
It is particularly important to set this parameter to values of > 0 for converter
(G163)
armatures which supply large inductances (e.g. lifting solenoids).
P161
Additional Alpha W pulses with disabled second pulses
Number of additional Alpha W pulses with disabled second pulses after
FDS
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 prior to a change in torque
direction. When it drops below the thyristor holding current value, the
current is suddenly chopped by the unfired second thyristor and the residual
energy stored in the load inductor must be dissipated via a suppressor
circuit (e.g. a varistor) to prevent the load inductor from producing a surge
voltage. See also P179.
P162
EMF calculation method for armature precontrol
*
0
The EMF derived from the measured armature voltage is
FDS
applied
1
The EMF derived from the calculated armature voltage is
(G162)
applied
(the purpose of this setting is to prevent the occurrence of any
low-frequency (< 15 Hz) armature current fluctuations)
SIEMENS Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
st
time after a change in torque direction).
requested torque direction
0.05%
I
0
Speed controller output
II
P159
Value range
No. indices
[Unit]
Factory
Steps
setting
Type
0 to 1
Ind: 4
1
FS=1
Type: O2
0.01 to 200.00
Ind: 4
0.01
FS=0.10
Type: O2
0.001 to 10.000
Ind: 4
[s]
FS=0,200
0.001s
Type: O2
0 to 1
Ind: 4
1
FS=0
Type: O2
0.000 to 1.000
Ind: 4
[s]
FS=0.000
0.001s
Type: O2
0.00 to 100.00
Ind: 4
[%]
FS=0.01
0.01% of n controller
Type: O2
output
0.000 to 2.000
Ind: 4
[s]
FS=0.000
0.001s
Type: O2
0 to 100
Ind: 4
1
FS=0
Type: O2
0 to 1
Ind: 4
1
FS=1
Type: O2
See
Change
(Access /
Status)
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Offline
10-31

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Comments to this Manuals

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Latest comments:
  • Rolando Guevarra Jan 02, 2018 12:48:
    Hi, i have trouble in our drive, F019, anyone can help to solve this fault. Thanks in advance
  • vivek Kumar Jul 28, 2015 05:25:
    6ra70 drive 250 kw problem field weakning optimizati​on failed fault f050 fault valu 10 plz help... m
  • vk jadaun Jul 18, 2015 02:16:
    242 kw dc drive but problem optimizati​on fail 25 current and field fault F050 fault valu 3.... ... plz suggest...