4.4.1 Machine operating modes .................................................................................. 25
4.4.2 Control modes .................................................................................................... 26
4.5 Operating panel SIGMA CONTROL 2 ............................................................................ 27
4.6 Floating relay contacts ..................................................................................................... 30
4.7 Options ............................................................................................................................. 30
4.7.1 Machine mountings ............................................................................................. 30
4.7.2 Prepared for external heat recovery ................................................................... 30
5 Installation and Operating Conditions
5.1 Ensuring safety ................................................................................................................ 32
5.2 Installation conditions ....................................................................................................... 32
5.2.1 Determining location and clearances .................................................................. 32
5.2.2 Ensuring the machine room ventilation ............................................................... 33
5.2.3 Exhaust duct design ........................................................................................... 34
5.3 Operating the machine in a compressed air system ........................................................ 34
6 Installation
6.1 Ensuring safety ................................................................................................................ 35
6.2 Reporting Transport Damage ........................................................................................... 36
6.3 Connecting the machine with the compressed air network .............................................. 36
6.4 Connecting the external pressure transducer .................................................................. 36
6.5 Making the Power Supply Connection ............................................................................. 37
6.5.1 Changing main voltage connections ................................................................... 38
6.6 Options ............................................................................................................................. 39
6.6.1 Anchoring the machine ....................................................................................... 39
6.6.2 Connecting the external heat recovery system ................................................... 39
7 Initial Start-up
7.1 Ensuring safety ................................................................................................................ 40
7.2 Instructions to be observed before commissioning or re-commissioning ......................... 41
7.3 Checking installation and operating conditions ................................................................ 41
7.4 Setting the overload protection relay ................................................................................ 42
7.5 Pouring cooling oil into the airend .................................................................................... 42
7.6 Activating and deactivating the MODULATING control .................................................... 43
7.7 Starting the machine for the first time .............................................................................. 44
7.8 Setting the set point pressure .......................................................................................... 45
7.9 Checking the Door Interlock Switch ................................................................................. 45
7.10 Setting the display language ............................................................................................ 45
8 Operation
8.1 Switching on and off ......................................................................................................... 47
8.1.1 Switching on ....................................................................................................... 47
8.1.2 Switching off ....................................................................................................... 47
8.2 Switching off in an emergency and switching on again .................................................... 48
8.3 Switching on and off from a remote control center ........................................................... 48
8.4 Using the timer for switching on and off ........................................................................... 49
8.5 Interpreting operation messages ...................................................................................... 50
8.6 Acknowledging alarm and warning messages ................................................................. 50
9 Fault Recognition and Rectification
9.1 Basic instructions ............................................................................................................. 52
9.2 Other Faults ..................................................................................................................... 52
10 Maintenance
10.1 Ensuring safety ................................................................................................................ 54
10.2 Following the maintenance plan ....................................................................................... 55
10.2.1 Logging maintenance work ................................................................................. 55
Contents
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Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2 9_5875 33 USE