Inhaltsverzeichnis - Bitzer Varipack Fdu+6 Originalbetriebsanleitung

Table of contents
1 Introduction............................................................................................................................................................ 3
2 Safety .................................................................................................................................................................... 3
2.1 Authorized staff.............................................................................................................................................. 3
2.2 Residual risks ................................................................................................................................................ 3
2.3 Safety references........................................................................................................................................... 3
2.3.1 General safety references.................................................................................................................. 3
3 Technical data ....................................................................................................................................................... 4
3.1 Modular design of the VARIPACK frequency inverter ................................................................................... 6
4 Mounting................................................................................................................................................................ 7
4.1 Transport and storage ................................................................................................................................... 7
4.2 Ventilation ...................................................................................................................................................... 7
4.3 Switch cabinet mounting................................................................................................................................ 8
4.4 Through-switch cabinet mounting (option)..................................................................................................... 9
4.4.1 Mounting work for through-switch cabinet mounting........................................................................ 11
4.5 Mounting in machinery room (option) .......................................................................................................... 13
4.5.1 Mounting instructions for the IP21 kit............................................................................................... 14
4.6 Mounting the fixtures for power cables and control cables.......................................................................... 15
5 Electrical connection............................................................................................................................................ 16
5.1 Earth connection.......................................................................................................................................... 17
5.2 Power connections (voltage supply cable and motor cable)........................................................................ 17
5.3 Control connections (inputs and outputs) .................................................................................................... 18
5.4 Operating modes ......................................................................................................................................... 20
5.4.1 Capacity control of the compressor depending on an external setpoint signal................................ 20
5.4.2 Capacity control of the compressor as a function of the evaporation pressure ............................... 21
5.5 Electromagnetic compatibility (EMC)........................................................................................................... 22
5.5.1 Analysis of the harmonics FDU+6 .. FKU+260 ................................................................................ 23
5.6 Safe Torque Off (STO) ................................................................................................................................ 24
5.7 Schematic wiring diagrams.......................................................................................................................... 26
5.7.1 Schematic wiring diagrams semi-hermetic reciprocating compressors ........................................... 26
5.7.2 Schematic wiring diagrams semi-hermetic screw compressors ...................................................... 29
6 Control functions.................................................................................................................................................. 33
6.1 Extension module for pressure control ........................................................................................................ 35
7 Data communication with the VARIPACK frequency inverter ............................................................................. 37
7.1 Communication via the BEST SOFTWARE ................................................................................................ 37
7.2 Removable control panel (with display and keypad) ................................................................................... 38
7.2.1 Kit for external mounting of the control panel .................................................................................. 38
7.2.2 Control panel setup and operation................................................................................................... 39
7.3 Interfaces for communication via Modbus RTU and Modbus TCP/IP ......................................................... 39
8 Commissioning of the VARIPACK frequency inverter ......................................................................................... 39
9 Fault messages and monitoring functions ........................................................................................................... 40
10 Maintenance ........................................................................................................................................................ 41
2 CB-100-2