The Basic Line Modules have the following interfaces as standard:

• 1 line supply connection
• 1 connection for the 24 V DC electronics power supply
• 1 DC link connection (DCP, DCN) for supplying the connected Motor Modules
• 1 DC link connection (DCPA, DCNA) for connecting a Braking Module
• 3 DRIVE‑CLiQ sockets
• 1 temperature sensor input for KTY84‑130, Pt1000 or PTC (Pt1000 can be used from firmware V4.7 HF17)
• 1 PE connection

The status of the Basic Line Modules is indicated via three LEDs.

The scope of supply of the Basic Line Modules includes:

• DRIVE‑CLiQ cable to connect to a Control Unit
• DRIVE‑CLiQ cable to connect the Control Unit to the first Motor Module
• 1 set of warning labels in 30 languages
  (BG, CN, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, JP, KR, LT, LV, MT, NL, NO, PL, PT, RO, RU, SE, SI, SK, TR)

Pre-charging circuit for the Basic Line Modules, frame size GD

Unlike Basic Line Modules in frame sizes FB and GB, a Basic Line Module in frame size GD requires a separate pre-charging circuit. The pre-charging circuit components must be ordered separately.

During startup, the pre-charging circuit ensures that the DC link capacitors of the Basic Line Module and the connected Motor Modules are pre-charged with current limiting. After pre-charging has been completed, the circuit breaker is closed and the pre-charging circuit bypassed; the Basic Line Module is then directly connected to the line supply.

The pre-charging circuit comprises a pre-charging contactor and pre-charging resistors; the circuit must be protected against overcurrent using suitable protection measures. To increase the permissible DC link capacitance, the pre-charging resistors can also be connected in parallel in each phase.

More information on the pre-charging circuit is to be found in the SINAMICS Low Voltage Engineering Manual.

For components for the pre-charging circuit and for recommended line-side system components, see System components.