JUMO 709040 TYA-110 thyristor power unit Operating Manual - Manual (Page 4)

4 Power units 02.06
Contents
4.6 Free-running economy circuit, purely resistive loads ....................................... 30
4.7 Master-slave economy circuit, with resistive/inductive loads ......................... 31
5 Commissioning ................................................................................. 33
5.1 Adjust control input (full wave) ........................................................................... 33
5.1.1 Setting the maximum power output ....................................................................... 33
5.1.2 Input signal attenuator ........................................................................................... 33
5.2 Setting the base load ........................................................................................... 34
5.3 Setting the current limit ....................................................................................... 35
5.3.1 Alteration of the current limit Imax, as a function of the voltage on Terminal 9 ..... 36
5.4 Setting the phase angle for the first half-wave ................................................. 36
5.5 Load and part-load failure monitoring ............................................................... 37
5.5.1 Setting the threshold for load failure indication ................................................ 37
5.5.2 Setting for master-slave and free-running economy circuit ............................ 38
5.6 External changeover of operating modes ......................................................... 38
5.7 Blown fuse indication .......................................................................................... 38
6 Settings .............................................................................................. 39
6.1 Opening the housing ............................................................................................ 39
6.2 Adjustment switches S1 — 21 and pin headers X503 / X504 .......................... 40
6.3 Summary of possible settings ............................................................................ 42
6.4 Control inputs ....................................................................................................... 43
6.4.1 Combinations of external potentiometer and electronic controller ........................ 44
6.5 Subsidiary control loops ...................................................................................... 45
6.6 Actual (power) output .......................................................................................... 46
6.7 Load current adaptation (only with extra code TR/T0) ..................................... 47
6.8 Select operating modes and load types ............................................................ 47
6.9 Economy circuit .................................................................................................... 48
6.9.1 Free-running economy circuit (asynchronous switching) for resistive loads ......... 49
6.9.2 Master-slave economy circuit (synchronous switching) for resistive and transformer
loads 49
6.10 Firing-pulse inhibit ............................................................................................... 50
7 Technical data ................................................................................... 51
7.1 Load circuit ........................................................................................................... 51
7.2 Control ................................................................................................................... 51
7.3 General data ......................................................................................................... 51