Getting Started; Safety Instruction; Board Connection And Start-Up - STMicroelectronics STEVAL-IHT008V1 User Manual

UM2027
2

Getting started

2.1

Safety instruction

The STEVAL-IHT008V1 evaluation board is designed for demonstration purposes only,
and must never be used for either domestic or industrial installations.
2.2

Board connection and start-up

Please follow this procedure to use the STEVAL-IHT008V1 board:
1. If you want to operate the board on a 98-132 V line voltage and have a DC bus
voltage two times higher than the peak line voltage, plug the jumper (see
J7 jumper plugged on board (doubler
screen (refer to
the rectifier to operate in a classic rectifier circuit, do not plug the J7 jumper.
2. Connect the AC load terminals (if used) to the associated headers (e.g., for AC switch
T1, refer to the "N1-OUT1" label in
side)").
3. Connect the L, N and PE (if required) of J9 header to an unpowered mains plug.
4. Apply the mains voltage. From this moment on, avoid any contact with live parts
subject to line voltage.
5. Switch the "HVDC ON" toggle button to the "ON" position" to start charging the DC
capacitors.
6. The AC loads are switched on and off each time the associated push-buttons (T1 to
T5) are pressed. These loads are controlled even if the "HVDC ON" button is kept in
the OFF position.
7. The rate of DC capacitor charging can be increased if the allowed peak current is
increased. To do this, turn the "MAX-INRUSH CURRENT" potentiometer clockwise.
The following figures show the J7 jumper connection for doubler mode (a) or rectifier mode
(b).
The high voltage levels used to operate the STEVAL-IHT008V1 evaluation board
can represent a serious electrical shock hazard. This evaluation board must be
used in a suitable laboratory only by qualified personnel who are familiar with the
installation, use, and maintenance of power electrical systems.
Figure 7: "(b) Jumper position left free (rectifier
compliance with the IEC 61000-3-3 standard is only guaranteed when th
potentiometer is set to the default position (between 0 and 1 mark) and with
original values of the EMI filter and output DC capacitors.
DocID029048 Rev 1
mode)") to the position indicated by the silk-
Figure 23: "STEVAL-IHT008V1 silk-screen (Top
Getting started
Figure 6: "(a)
mode)"). If you want
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