Current Limiting; Electronic Fuse - Hameg HM7042-5 User Manual

ELECTRONIC FUSE

This pushbutton will activate the electronic fuse mode,
indicated by LED [ON].
OUTPUT
Pushbutton for turning all 3 channels simultaneously ON/
OFF, indicated by the LED [ON]. The voltage displays will
remain unaffected.
6.3

Current Limiting

After turn-on of the power supply it will always start in the
CURRENT LIMIT mode. Using the CURRENT
trols the maximum output current I
output separately. Onset of current limiting in one channel
will not in uence the others. In order to ad ust I
appropriate output has to e short-circuited rst, then I
can be set, the associated LED
indicate the current limit mode.
6.4 Electronic Fuse
Prior to selection of this mode the current limits have to be
set using the CURRENT
output has to e short-circuited rst efore ad usting the
appropriate CURRENT control. After setting I
has to be remov-ed. Then Electronic Fuse
the LED [ON] will light up indicating that the HM7042-5 is
in the Electronic Fuse mode. In this mode all outputs will
be immediately deactivated if the I
reached. In order to leave this mode press Electronic Fuse
again.
The current limits can be set using the controls CURRENT
0 – 2 A / 0 – 5 A. If a control is set CCW to 0 A indeed the
current will be zero, so the output capacitances will be dischar-
ged slowly to 0 V. In "Current Limit" mode the CCW position of
a control will cause the associated LED
output voltage will decrease slowly. In the Electronic Fuse mode
the CCW position of any CURRENT control will result in immedi-
ate switching off of all channels after depressing OUPUT
con-
can be set for each
max
the
max
max
or will light up and
controls. As outlined each
, the short
max
is depressed,
of one channel is
max
to light up, the
.
O p e r a t i n g c o n t r o l s a n d d i s p l a y s