LSU220A : Load Support Unit
Operators Manual
for voltage.
5.1.2
Current validation
With a load which will give a steady 100A connected to the LU220A switch
on and press the START push button.
Using the OUTPUT TRIM
pq
push buttons set the output voltage to 24.0V.
Note if you press and hold either the
pq
push buttons the adjustment
will be continuous.
With the calibrated ammeter or shunt and millivoltmeter combination
connected in-line with the load current reading is +/- 2.0A of the displayed
value.
If the current is outside of tolerance follow the ADUSTMENT PROCEDURE
for current..
5.2
ADJUSTMENT PROCEDURE
5.2.1
Voltage adjustment
With no load connected to the LSU220A switch on and press the START
push button.
To get the unit into calibration adjustment mode press the START push
button and the OUTPUT TRIM
p
push button both at the same time.
Then release the push buttons.
The GREEN RUN LED should then flash at a steady rate.
By using the OUTPUT TRIM
pq
push buttons adjust the displayed voltage
so that it matches as near as possible the voltage measured on the
calibrated voltmeter connected to the output terminals. Note if you press
and hold either the
pq
push buttons the adjustment will be continuous.
Once complete press the START push button once and verify that it stops
flashing and remains steady.
Press the STOP push button.
Calibration voltage adjustment is complete.
5.2.2
Current adjustment
With a load which will give a steady 100A connected to the LU220A switch
on and press the START push button.
Doc: DWG1063-08-R2 LSU220A Operators Manual.odt
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Copyright Material of Intelligent Charging Limited © 2018
Printed On : 17/07/19
