MG TR-EVO, Инструкция по эксплуатации, Страница: 10 / 24

Caution: To obtain correct measurements, this cable must be connected to the ends of the heating
element, connecting at other points introduces measurement errors and reduces the efficiency of
temperature control.
Current measurement input
To sense the heating element current, TR-EVO has a dedicated
passage where to pass one of the connecting cables between
transformer and heating element. Normally the cable only makes one
passage through the hole. In particular cases and depending on the
characteristics of the heating element and/or the transformer, the
number of passages to be made could be more than one. See in the
figure on the side of this paragraph how to make two passages. Do
reference to the section "Transformer sizing" for more information.
User interface connector
The power unit should be connected to the display/user
interface unit using the cable supplied. 1-3-5 meters
cable lengths are available as option and must be
specified when ordering.
Under the semi-transparent cover are available
switches for the selection of the work current and two
signalling LEDs are visible.
Signalling on power module
Green LED L1: Power supply signal. It stays on as long as the power supply is on.
Yellow LED L2: Power signal. It switches on when the temperature controller commands the
pulse transformer.
Configuration of the switches for selection of the current ranges
Both open, 12-25A range
DIP 1 closed , DIP 2open, 25-50A range
Both closed, (ON) 50-100A range
8
CONNECTION