09.02
Start-Up
Siemens AG 6SE7087-6AK85-1AA0
4-5
Rectifier/Regenerating Unit Operating Instructions
NOTE
It is possible to jump into the appropriate sequence step (in the following flow diagrams) if incorrect entries
have been made, taking into account the access stage (P051) and a function selection (P052) which may be
required. It is recommended that the following parameters and function steps after the jump-in position are re-
checked and executed due to the background calculations !
NOTE
To avoid oscillating of the link voltage in regenerative mode, it is advisable to set parameter P287 of the
SIMOVERT Master Drives FC (time constant for filtering the link voltage) to the value 3.
4.2.2
Parameterization "Standard application"
P050 =
P051 = 2
P053 =
P554 = 2001
P555 = 2001
P052 = 5
P071 =
P571 = 0001
Regen.
transformer?
yes
no
Permanent
reduction
yes
Commands
via OP1S?
yes
no
no
Language (only important when an OP1S is in use; see Section 9.4):
0: German, 1: English, 2: Spanish, 3: French, 4: Italian
Access stage
"Standard mode“
Parameterization enable
e.g. with P053=6, the parameters from the parameterization unit (PMU)
and from serial interface 1 of the basic unit (SST1- and therefore also
from the optional user-friendly operator panel OP1S) can be modified.
Operator control
If the unit is to be switched on and off via the optional user-friendly
operator panel OP1S:
P554=2001 Source for control command "ON/OFF1"
P555=2001 Source for control command "OFF2"
Drive setting
Supply voltage [V]
Value of the rated voltage at the input bridge
Mode variants:
a) The system voltage in the regenerative branch is stepped up by an
(auto) transformer in order not to have to reduce the link voltage in
regenerative mode
b) Permanent reduction of the link voltage by phase angle control in
rectifier mode to always be able to feed power back into the system
In accordance with the manufacturer setting P318=80%, it is reduced
to a setpoint of 80% of 1.35 x system voltage at the rectifier bridge 1)
P571 = 0001 permanent selection of reduced voltage
1) P318 is not displayed in "standard mode"
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