Deactivation Of Monitoring Functions; Compensation Values; P825 Offset Compensation For Actual Field Current Channel; P826 Correction Of Natural Commutation Timing - Siemens 6RA70 Series Instructions Manual

PNU Description

10.41 Deactivation of monitoring functions

WARNING
If monitoring functions are deactivated, there may be a risk to the safety of operating personnel or of
substantial property damage if a fault or error actually occurs!
P820 Deactivation of fault messages
*
The numbers of all fault messages to be deactivated must be entered in this
parameter. Fault numbers can be entered in any order. 0 must be entered
for any unused indices of the parameter.
Factory setting:
i001 = 7
i002 = 18
i003 = 31
i004 = 35
i005 = 36
i006 = 37
i007 to i099 = 0
P821 Deactivation of alarms
*
The numbers of all alarm messages to be deactivated must be entered in
this parameter. Alarm numbers can be entered in any order. 0 must be
entered for any unused indices of the parameter.

10.42 Compensation values

r824 A7006 compensation values
These data contain compensation values for the analog section of
electronics board A7006
P825 Offset compensation for actual field current channel
These data contain compensation values for the actual field current sensing
function. They are automatically set during "Restore factory settings"
(P051=21) and during the automatic offset compensation run (P051=22).
P826 Correction of natural commutation timing
(G163) If there is a variation in the armature current peak value (in spite of a
constant firing angle), it can be corrected by offsetting the firing angle
reference time of the appropriate line phase in parameter P826. One line
phase (UV, UW, VW, VU, WU, WV) is assigned to each parameter index
(i001 to i006).
Increasing the parameter setting by a value of 1 corresponds to an increase
of 1.333 µs in the firing angle (0.024 degrees at 50Hz line frequency),
consequently reducing the armature current peak in the appropriate line
phase.
P826 is automatically set during the optimization run for precontrol and
current controller (armature and field) (P051=25) (only when U800=0; when
U800=1 or 2, parameters P826.001 to 006 are set to 0).
Caution:
Even an asymmetrical system causes variations in the magnitude of
armature current peaks. However, the system asymmetry may also change.
r827 Internal diagnosis
i001: Number of write access operations to EEPROM
i002: Number of Page-Write access operations to EEPROM
i003: Counter for DUAL-PORT RAM timeouts
r828 MLFB data
These data contain details about the power section design (model)
r829 A7001 compensation values
These data contain compensation values for the analog section of
electronics board A7001
SIEMENS Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
(overvoltage)
(short circuit at binary outputs)
(monitoring of speed controller)
(drive blocked)
(armature current cannot flow)
(I 2 t motor monitoring function has responded)
Value range No. indices
[Unit] Factory
Steps setting
Type
0 to 147 Ind: 99
1 FS=
see column
on left
Type: O2
0 to 147 Ind: 99
1 FS= 0
Type: O2
0 to 65535 Ind: 10
1 Type: O2
13000 to 25000 Ind: 3
1 FS=19139
Type: O2
-100 to 100 * 1.333 Ind: 6
[µs] FS=0
1.333µs Type: I2
0 to 65535 Ind: 3
1 Type: O2
0 to 65535 Ind: 16
1 Type: O2
0 to 65535 Ind: 68
1 Type: O2
See
Change
(Access /
Status)
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P052 = 3
P051 = 40
Online
P052 = 3
P051 = 40
Online
P052 = 3
P052 = 3
P052 = 3
10-87