09.02 Parameter List
Siemens AG 6SE7087-6AK85-1AA0
5-15
Rectifier/Regenerating Unit Operating Instructions
PNU
*
: Conf.
Par.
OP1S parameter name
Description
Value range
[phys. unit]
Selection text
Display
Indices
Factory-
setting
See
Modify
(access /
status)
5.8 Convenience functions
P353
*
Thyristor Test
Function test of the S/F unit thyristors
0 Thyristor test inactive
1 Thyristors are tested when the first ON command is given after
switching on the electronics power supply
2 Thyristors are tested at each ON command
3 Thyristors tested at the next ON command. If no fault occurs,
parameter P353 is reset to 0.
Important: When units are connected in parallel (see Section 3.7), the
thyristor test results are only conditionally useful.
Note: The thyristor test can only be carried out if the
DC link voltage is less than 5% of 1.35
*
P071. Following an ON
command, therefore, the unit waits in operating status
o
012 until
this condition is fulfilled!
Exception: In slave mode (control word bit 27=1), the thyristor
test is only carried out when U
d
≤5%. When U
d
>5%, a selected
thyristor test (P353>0) is ignored (with P353=3, P353 remains at
3).
The thyristors of the regenerating bridge are also fired for the
purposes of the thyristor test in the case of "regenerating
inhibited" (control word 1, bit 12, corresponding source P572
selected).
PNU=161Hex; Type=O2; Scaling: 1Hex
=
∧
1
0 to 3
not active
first ON
every ON
next ON
-
0
3/ BR
3/ B
P354
*
Ground Fault Test
Checking the S/F unit for ground faults
This is not a protective function as defined by the VDE guidelines!
0 Ground fault test inactive
1 Ground fault test when the first ON command is given after
switching on the electronics power supply
2 Ground fault test at each ON command
3 Ground fault test at the next ON command. If no fault occurs,
parameter P353 is reset to 0
Note: The ground fault test is only carried out if the DC link voltage is
less than 50% of 1.35
*
P071; otherwise it is automatically
skipped!
PNU=162Hex; Type=O2; Scaling: 1Hex
=
∧
1
0 to 3
inactive
First ON
Any ON
Next ON
-
2
3/ BR
3/ B
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