Sitor Cabinet - Siemens SIMADYN D Manual

5.5.2 SITOR cabinet

Synchronizing
voltages SA60
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002
The direct connection between the SITOR set 6QG2x/6QG3x and the
SITOR interface ITDC-X7 is established using pre-assembled cables
SC17.2 (2 m) and SC31.2 (10 m).
Connections to the drive converter can also be established using the
adapter module "C" and cables SC17.2 (2 m) and SC31.2 (10 m)
(→ Catalog DA91, SITOR thyristor sets).
This adapter should be used to connect two drive converters in parallel.
For sets connected in parallel, it should be decided which of the two
current actual values should be transferred to the ITDC expansion
module.
Signals can be coupled-in or coupled-out at the adapter modules.
No changes have to be made at the SITOR sets and the expansion
module.
SITOR cabinet units 6QC5 are connected via the SE20.2 interface
module to the SITOR interface of the ITDC expansion module.
The drive converter signals are connected to the SE20.2 and from there,
transferred floating to the ITDC.
The SE20.2 interface module can be inserted in the SIMADYN D subrack
where it occupies three slots. The module has a rear connector to input
the voltage. However, it does not have a coupling to the backplane bus.
The depth of the modules differ.
Synchronization to the line supply is realized using the SA60.1
synchronizing module. The transformer has a delta configuration on the
line side. This means that this phase rotation must be taken into
consideration at PA6.XDA.
The SA60.1 synchronizing module comprises an SA61 transformer
module and the SA20.1 line supply sensing module. These are
connected through a ribbon cable.
The line supply voltage is connected, with a clockwise rotating field, to
the screw terminals of the transformer module SA61-X2.
The transformed voltages are processed on the SA20.1 electronics
module and are transformed to the screw terminals of the SE20.2 -X6
interface module via screw terminals -X2.
The zero crossover signals of phase-to-phase voltages V
synchronizing voltage are transferred to the ITDC -X7 expansion module
via the SITOR interface SE20.2-X3.
When shipped, the SA60.1 synchronizing module is pre-set to a rated
input voltage of 400 V (Dip switches S1:3, S1:7 and S2:3 are closed).
For more detailed information on this module, please refer to the
description of the SA60.1 synchronizing module.
Closed-loop thyristor current control
L12
, V and the
L13
5-67