With SINAMICS DC Master Base  Drives, increased productivity and decreased project costs  directly result from extraordinar  product reliability, unsurpassed  dynamic performance and  seamless integrat\ion into the  automation environment.

Product selection — example 1
Application: The customer has an existing winder application with the following
requirements: Supply input of 480V AC, 200 hp DC motor with encoder feedback,
a continuous current of 315 amps and an overload requirement of 150% for one
minute every 15 minutes. The winder application requires regeneration. The interface
requirements for the application are PROFIBUS communication protocol, (8) digital
inputs, (6) digital outputs, (4) analog outputs, (3) analog inputs, (2) relay outputs,
and an additional encoder input to measure the diameter of the roll.
Solution: The first step is to select the SINAMICS DCM base drive based upon
the power requirements. Per the product selection table, look under the current
rating column for the DC II rating that allows for continuous current plus the
150% overload requirement.
From the product selection table, the proper selection for the SINAMICS DC
Master Base Drive is:
6RA80822FV620AA0 — 450A, 4-Quad Unit
Next, determine whether the standard features of the Base Drive meet the interface
requirements, or whether additional field-installed options are required. The Advanced
CUD, which is standard, provides the PROFIBUS interface and all other options except
for 4 of the I/O points, the two relay outputs and the additional encoder interface.
The optional TM31 Terminal Module provides the additional 4 I/O and the two relay
outputs. The optional SMC30 Sensor Module provides the encoder interface. Both the
TM31 and SMC30 connect to the Advanced CUD via DRIVE-CLIQ.
The ordering data are as follows:
1 6RA80822FV620AA0 — 450A, 4-Quad SINAMICS DCM Base Drive
1 6SL3055-0AA0-3AA1 — Terminal Module 31
1 6SL3055-0AA00-5CA2 — Sensor Module
Product selection — example 2
Application: The customer has an existing motor generator set and is looking to
upgrade the field on the generator. The input power is 240V AC, the motor field is
rated at 56 amps at 150V DC and there is no overload requirement. The customer
has no communication protocol requirement and the Start / Stop and speed reference
(0- +10V DC) is discrete wired. The customer wants to utilize the existing cabinet and
to replace the existing contactor, fuses and control components.
Solution: Siemens can meet the customer’s expectations with the SINAMICS DCM
Base Drive. Additionally, use of the Base Drive will save engineering and installation
time since the pre-engineered components are mounted on a sub-panel. The application
does not require any overloads, so we can size the drive according to the product
selection table and reviewing the current column and using the IEC I rated of
continuous current.
From the product selection table, the 60A unit is the best solution. Since the field
control for the MG set is non-reversing, a 2-Quad non-reversing drive can be used.
The Advanced CUD, which is provided as standard, has sufficient I/O to meet the
discrete control requirements, so no additional options are required.
The ordering data is as follows:
1 6RA80252FS220AA0 — 60A, 2-Quad SINAMICS DCM Base Drive