Siemens 400 V / 210...590 A operating instructions Configuration Operation and control options

01.2004 Description

Configuration

Operation and control options

Both one and several inverters can be connected to the output.

The maximum connected power of the inverters may amount to 4 times the rated power of the AFE inverter. The sum of active power extracted from the network must not exceed the rated power of the AFE, and this must be ensured by configuration of the system.

The AFE is suitable for coupling several inverters to a common DC busbar. This allows energy to be transferred between motoring and generating drives, thus providing a power-saving feature.

In voltage step-up mode, dips in the mains voltage can be compensated without changing the level of the DC link voltage. This can be achieved up to 65 % of rated line voltage without additional components on condition that the power balance defined by Equation 1 can be maintained.

3 ⋅ Vline ⋅ Imax = Vd ⋅ Id

Equation 1:

To bridge line voltage dips below 65 % of rated line voltage, the auxiliary power supply must be supported by an external UPS or similar to prevent the contactors from dropping out.

The unit can be controlled and operated via

♦the parameterization unit (PMU)

♦an optional operator control panel (OP1S)

♦the terminal strip

♦a serial interface

In combination with automation systems, the AFE rectifier/regenerative feedback unit is controlled via optional interfaces and technology boards.

Siemens AG 6SE7087-6CX86-2BA1	2-3
SIMOVERT MASTERDRIVES AFE Operating Instructions