Connecting The External Power Unit - Siemens SINAMICS DCM Operating Instructions Manual

6.4

Connecting the external power unit

The following 5 figures show all the required connections to the power unit.
● Figure: "Connection of a 4-quadrant power unit (1)":
● Figure: "Connection of a 4-quadrant power unit (2)":
● Figure: "Connection of a 2-quadrant power unit (1)":
● Figure: "Connection of a 2-quadrant power unit (2)":
● Figure: "Connections to the power interface":
If additional cables are being fed from the voltage measurement equipment to the power
unit for the purpose of measuring the line voltage and armature voltage, the existing Spec
44 cables (white) which are no longer required must be completely removed.
SINAMICS DCM Control Module
Operating Instructions, 06.2010, C98130-A7067-A1-02-7619
– 4-quadrant drive (parameters assigned for a 4-quadrant drive as delivered - p51825 =
4)
– Line voltage and armature voltage measured via Faston terminals on the firing pulse
transformer module (as delivered)
– 4-quadrant drive (parameters assigned for a 4-quadrant drive as delivered - p51825 =
4)
– Line voltage and armature voltage measured via additional cables to be fed directly
from the power unit
– 2-quadrant drive (parameter assignment: parameter p51825 = 2)
– Line voltage and armature voltage measured via Faston terminals on the firing pulse
transformer module (as delivered). The armature current can only be measured if a
connection is made to 1D1 on the power unit.
– 2-quadrant drive (parameter assignment: parameter p51825 = 2)
– Line voltage and armature voltage measured via additional cables to be fed directly
from the power unit
– Connection of fan contactor, fan monitoring equipment, temperature sensors on the
heat sink, external monitoring equipment
WARNING
6.4 Connecting the external power unit
Connecting
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