JUMO 709040 TYA-110 thyristor power unit Operating Manual - Manual (Page 12)

1 Introduction
12 Power units 02.06
1.6 Front panel indicators and adjustments
(1) Indicator LED for blown semiconductor fuse (6) Adjustment of threshold for part-load failure
indication (with extra code TR or TO)
(2) LED for current indication (7) Adjustment of full output
(3) LED for load-failure indication (8) Adjustment of power level signal
(4) LED for full-output indication (9) Spring clip to release cover
(5) Adjustment of current limit in phase-angle
operation (with extra code TR or TO) (10) Adjustment of phase-angle reduction for 1st half-
wave in burst-firing operation