Bitzer CM-SW-01 Information Technique page 32

Table of contents
1 Introduction........................................................................................................................................................ 34
2 Safety.................................................................................................................................................................. 34
2.1 Authorized staff............................................................................................................................................ 34
2.2 Residual risks .............................................................................................................................................. 34
2.3 Safety references......................................................................................................................................... 34
2.3.1 General safety instructions .............................................................................................................. 35
3 Technical data.................................................................................................................................................... 35
3.1 Compressor module (K03)........................................................................................................................... 35
3.2 Inputs and outputs ....................................................................................................................................... 36
3.3 Peripheral devices ....................................................................................................................................... 36
3.3.1 Voltage supply of the peripheral devices ......................................................................................... 37
3.3.2 Rotation direction monitoring fuse (F08).......................................................................................... 37
3.4 Available cable bushings into the module housing ...................................................................................... 37
3.5 Requirements for connection cables ........................................................................................................... 38
4 Operating and monitoring functions ............................................................................................................... 38
4.1 Operating functions...................................................................................................................................... 38
4.1.1 Capacity control and ajustment of the internal volume ratio (V
4.1.2 Unloaded compressor start.............................................................................................................. 39
4.1.3 Oil injection and oil return from the secondary oil separator............................................................ 39
4.1.4 Oil heater in CS. compressors ......................................................................................................... 39
4.1.5 Switching the motor contactors on and off at compressor start ....................................................... 39
4.2 Monitoring and protective functions ............................................................................................................. 40
4.2.1 Oil pressure transmitter (B54).......................................................................................................... 40
4.2.2 Rotation direction monitoring ........................................................................................................... 40
5 Electrical connection ........................................................................................................................................ 41
5.1 Star-delta start ............................................................................................................................................. 41
5.2 Operation with frequency inverter (FI) ......................................................................................................... 41
5.3 Operation with soft starter............................................................................................................................ 41
5.4 Setting the time relay control in accordance with the drive type.................................................................. 41
5.5 Representation of components and cables ................................................................................................. 41
5.6 Schematic wiring diagrams with CM-SW-01................................................................................................ 42
5.7 Wiring in the state of delivery....................................................................................................................... 51
5.7.1 HS.95: pre-fitted components .......................................................................................................... 51
5.7.2 CSW105: pre-fitted components...................................................................................................... 51
5.7.3 OS.95: pre-fitted components .......................................................................................................... 51
5.7.4 OS.85: pre-fitted components .......................................................................................................... 51
5.8 High pressure switch ................................................................................................................................... 51
6 Connecting cables............................................................................................................................................. 52
6.1 Required electrical connections to CM-SW-01 ............................................................................................ 52
6.1.1 Module power connection at terminal strip CN1 .............................................................................. 52
6.1.2 Input signal of the safety chain ........................................................................................................ 52
6.1.3 Motor contactors .............................................................................................................................. 52
6.1.4 Command for compressor start ....................................................................................................... 52
6.1.5 Control signal from superior controller ............................................................................................. 52
32
) ...................................................... 38
i
ST-150-4