Chroma 63610-80-20 Operation & Programming Manual page 95

Programmable dc electronic load
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2.
Set Current Level
There are 15000 discrete steps from 0 to full scale in each range. Press the
to enter into the editing mode, and the VFD displays:
Turn the Rotary knob to change the display value to 30A for Load1, then press
key to confirm. At the same time it changes to load level setting for Load2.
The VFD displays now:
Turn the Rotary knob to change the display value to 10A for Load2, then press
key to confirm. At the same time it changes to setting period T1 for Load1.
The user may use
data, then turn the rotary knob to change the value of that digit.
If the user does not use
value changes according to the rotary knob turning speed.
Notations for Load1 and Load2 are
Load2 have nothing to do with comparison between them as their implied meaning high
and low.
3.
Set period T1 & T2
The VFD displays:
Turn the Rotary knob to change the display value to 10.000 ms, then press
to confirm. At the same time period setting changes to T2.
The VFD displays now:
Turn the Rotary knob to change the display value to 01.000 ms, then press
to confirm. At the same time it changes to setting slew rate for rise.
If one of the periods T1 and T2 is larger than 50 ms, full scale switches from low to high,
and resolution switches to 1ms automatically. Period range and resolution see following:
or
key to change the cursor position to different digit of
or
key to display the cursor, then resolution of the
and
Period
Low
0.020ms ~10ms
High
1ms ~ 100s
respectively, values for Load1 and for
Resolution
1μs
1ms
Local Operation
EDIT
key
ENTER
ENTER
ENTER
key
ENTER
key
4-19

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