Siemens S120 PM240-2 - Siemens S120 Power Module Overview; Power Module Blocksize Description (PM240-2)

Siemens PM240-2_EN_rev00-30082019.docx 3-1
3 POWER MODULE
3.1 POWER MODULE BLOCKSIZE (PM240-2)
3.1.1 Description
The Power Module are in Blocksize format and theirs size are identified with letters, from FSA to reach FSF.
They consist of the following components:
 Line-side diode rectifier
 DC link electrolytic capacitors with pre-charging circuit
 Output inverter
 Braking chopper for (external) braking resistor
 24 V DC / 1 A power supply
 Gating unit, actual value acquisition
 Fan to cool the power semiconductors
The Power Modules are supplied in versions with line filter with reference to the standard EMC EN 61800-3
Table 1 Power Module PM240-2 overview
Power Module frame size FSB,
with integrated line filter
Power Module frame size FSC, with
integrated line filter