8.8.2 Output messages ................................................................................................ 110
8.8.3 Refrigerated dryer alarm – Compressed air quality has priority .......................... 112
8.8.4 Refrigerated dryer alarm – Compressed air supply has priority .......................... 113
8.9 Setting the machine for local mode .................................................................................. 113
8.9.1 Menu Load control .............................................................................................. 114
8.9.2 Setting the nominal pressure change via timing program .................................. 114
8.9.3 Setting the nominal pressure change via timer ................................................... 117
8.10 Configuring the machine for master control ..................................................................... 119
8.10.1 Overview of the different master operating modes ............................................. 119
8.10.2 SAM 4.0 mode .................................................................................................... 120
8.10.3 Configuring PROFIBUS mode (SIGMA AIR MANAGER) ................................... 123
8.10.4 Interconnection of two machines in master/slave operation ............................... 131
8.10.5 Configuring master control using the LOAD remote contact (e.g.
SIGMA AIR MANAGER BASIC)
3)
......................................................................
138
8.10.6
Setting the master control with local/LOAD remote contact
3)
............................
140
8.10.7 Setting the setpoint pressure pre-selection via remote contact ......................... 144
8.10.8 Master control for machines regulated by pressure switch ................................. 145
8.10.9 Examples of time settings for equal overall load ............................................... 150
8.11 Setting input and output signals ....................................................................................... 151
8.11.1 Output important operational states of machine on digital outputs ..................... 151
8.11.2 Output input signals on the display ..................................................................... 153
8.11.3 Output measured values on the display ............................................................. 157
8.11.4 Switching and/or triggering messages with thresholds ....................................... 163
8.12 Timer ................................................................................................................................ 167
8.13 Activating remote acknowledgement .............................................................................. 168
8.13.1 Setting the remote acknowledgement function ................................................... 169
8.13.2 Activating the remote control .............................................................................. 169
8.13.3 Assigning an input .............................................................................................. 170
8.14 Linking to an external pressure transducer ..................................................................... 171
8.14.1 Pressure control menu ........................................................................................ 171
8.14.2 Assigning an input to an external pressure transducer ...................................... 171
8.15 Commissioning the machine ........................................................................................... 172
9 Operation
9.1 Switching on and off ......................................................................................................... 174
9.1.1 Switching on ....................................................................................................... 174
9.1.2 Switching off ....................................................................................................... 175
9.2 Switching off in an emergency ......................................................................................... 175
9.3 Acknowledging alarm and warning messages ................................................................. 176
9.4 Displaying messages ...................................................................................................... 177
9.4.1 Selecting the status menu .................................................................................. 178
9.5 Displaying the current operating mode ............................................................................ 180
9.6 Adjusting the working pressure ........................................................................................ 181
9.7 Displaying analogue data ................................................................................................ 181
9.8 Displaying operating data ................................................................................................. 182
9.8.1 Checking the operating hours ............................................................................. 182
9.8.2 Checking the switching cycles ............................................................................ 183
9.9 Displaying the frequency converter settings .................................................................... 184
9.10 Setting the maintenance interval ...................................................................................... 185
9.11 Resetting the maintenance interval counter ..................................................................... 186
9.12 External maintenance counter ......................................................................................... 187
9.13 Safety relief valve test ..................................................................................................... 190
9.14 Excessive temperature shut-down test ............................................................................ 193
9.15 Save data ......................................................................................................................... 194
9.15.1 Format SD card .................................................................................................. 196
Contents
No.: 9_9450 13 USE
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2
iii