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Siemens 6RA70 Series Instructions Manual Page 151

Microprocessor-based converters from 15a to 1680a for variable speed dc drives.
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PNU
Description
P147
Nominal measuring time of pulse encoder signal evaluation
*
0
Nominal measuring time 1 ms, gating-pulse-synchronized
FDS
measurement
1
Nominal measuring time 2 ms, gating-pulse-synchronized
(G145)
measurement (produces "steadier" actual speed value than
setting 0)
2
Nominal measuring time 4 ms, gating-pulse-synchronized
measurement (for drives with high moment of inertia, produces
"steadier" actual speed value than setting 0)
12
Nominal measuring time 0.2 ms, asynchronous measurement
13
Nominal measuring time 0.3 ms, asynchronous measurement
...
20
Nominal measuring time 1 ms, asynchronous measurement
Note:
12 to 20
Nominal measuring time 0.2 ms to 1 ms, asynchronous
measurement
for highly dynamic drives, reduces dead time in the actual speed
value channel, but "less steady" actual speed value than
achieved with setting 0 to 2 [can be set only in SW 1.9 and later]
Notice:
When P147=1 or 2 the minimum measurable speed can be reduced by a
factor of 2 or 4 respectively as opposed to 0 or 12 to 20. However, these
settings increase the actual speed sensing delay. For this reason, P200
should be parameterized to at least 5ms before the optimization run for the
speed controller is executed.
P148
Pulse encoder monitoring function
*
0
Pulse encoder monitoring OFF (activation of F048 in response
FDS
to a defective pulse encoder is disabled)
1
Pulse encoder monitoring ON (hardware monitoring of pulse
(G145)
encoder signals for implausible behaviour (i.e. frequent speed
changes, distance between edges too short, encoder cable
defect or short between two encoder cables) may cause
activation of F048)
10.8
Closed-loop armature current control,auto-reversing stage,armature gating
unit
P150
Alpha G limit (armature)
Rectifier stability limit for firing angle of armature converter.
FDS
(G163)
P151
Alpha W limit (armature)
Inverter stability limit for firing angle of armature converter.
FDS
(G163)
See also parameter P192 (Control word for Alpha W limit)
P152
Line frequency correction (armature)
*
The internal line synchronization for the armature gating pulses derived from
FDS
the power terminals (armature mains infeed) is averaged over the number of
line periods set in this parameter. In operation on "weak" power supplies
(G163)
with unstable frequencies, for example, on a diesel-driven generator
(isolated operation), this parameter must be set lower than for operation on
"constant V/Hz" systems in order to achieve a higher frequency correction
speed.
P153
Control word for the armature precontrol
*
0
Armature precontrol disabled, output of the precontrol=165°
FDS
1
Armature precontrol active
2
Armature precontrol active but EMF influence only active on
(G162)
change in torque direction
3
Armature precontrol active but without EMF influence., i.e. for
precontrol, the EMF is assumed to be 0.
(recommended setting for supplying large inductance from
armature terminals, e.g. solenoids, field supply)
[can only be set on SW 1.7 and later]
10-30
Value range
[Unit]
Steps
0 to 20
1
0 to 1
1
0 to 165
[degrees]
1 degrees
120 to 165
[degrees]
1 degrees
1 to 20
0 to 3
1
SIEMENS Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
No. indices
See
Factory
Change
setting
(Access /
Type
Status)
Ind: 4
P052 = 3
FS=0
P051 = 40
Type: O2
Offline
Ind: 4
P052 = 3
FS=1
P051 = 40
Type: O2
Offline
Ind: 4
P052 = 3
FS=5 / 30
P051 = 40
(for 1Q / 4Q
Online
converters)
Type: O2
Ind: 4
P052 = 3
FS=150
P051 = 40
Type: O2
Online
Ind: 4
P052 = 3
FS=20
P051 = 40
Type: O2
Online
Ind: 4
P052 = 3
FS=1
P051 = 40
Type: O2
off-line

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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...