JUMO 709040 TYA-110 thyristor power unit Operating Manual - Manual (Page 33)

Power units 02.06 33
5 Commissioning
5.1 Adjust control input (full wave)
The trimmer (7) “full wave” on the front panel can be used to adjust the thyris-
tor power unit so that the 100% (full wave) firing point is reached at the maxi-
mum output signal of the preceding controller.
5.1.1 Setting the maximum power output
h Apply the maximum controller output signal
h Turn the “full wave” trimmer clockwise or counter-clockwise until the green
LED for “full wave” just light up in phase-angle control, and does not light
up in burst-firing mode.
5.1.2 Input signal attenuator
h Turning the “full wave” trimmer counter-clockwise limits the maximum
power output of the thyristor power unit.
When using the free-running economy circuit, both thyristor power units
must be adjusted as described above.
When using the master-slave economy circuit, the adjustment is only made
on the master power unit.
v Section 4.6 “Free-running economy circuit, purely resistive loads” und
Section 4.7 “Master-slave economy circuit, with resistive/inductive loads”
H
When using a logical control output (e.g. from a single-setpoint
controller) the “full wave” trimmer must be turned fully clockwise.