Conspectus Of The Different Modes; Separated Mode; Parallel Mode; Tracking Mode - elc ALR3003D Bedienungshandbuch

If the RL load resistance is lower than the ratio Vs/
Fig.1
Is, the power supply works at constant current, for
V
a current value selected and with a voltage limiting
RL=Vs/Is
RL>Vs/Is
to Vs.
Vs
If RL varies from 0 to Vs/Is, V can vary from 0 to Vs
and Is = constant (V1 example).
For the power supply being able to work at constant
current, the output voltage has
RL>Vs/Is
V1
to be set at the maximum of the specified values ; and
the limit current has to be set
by an appropriate adjustment on acting on the Icc
I1 Is I
function.
Caution ! when the output limit voltage and current are set, so that the load resistance
is equal to the ratio Vs/Is, a working instability can occur.

3.2 CONSPECTUS OF THE DIFFERENT MODES

3.2.1 Separated Mode

The 2 power-supplies are independant and deliver each a voltage adjustable from
0 to 30V and a current adjustable from 0 to 3A.
-
ESCLAVE / SLAVE
+
-
+
MAITRE / MASTER

3.2.2 Tracking Mode

This mode allows to deliver 2 symmetrical voltages in relation to the middle point formed
by the negative terminal of the Master power-supply "A" and the positive terminal of
the Slave power-supply "B". The regulation of the slave voltage is driven by the master
one. The current setting remains independant and adjustable from
0 to 3A for each power-supply.
ESCLAVE / SLAVE
MAITRE / MASTER
Charge / Load
Charge / Load
-
GND
Charge / Load
+
3.2.3 Series Mode
It allows to adjust the power-supply from 0 to 60V with a current from 0 to 3A. The
voltage regulation of the Slave power-supply "B" are driven from the Master one "A".
ESCLAVE / SLAVE
MAITRE / MASTER

3.2.4 Parallel Mode

It allows to adjust the power-supply from 0 to 30V with a current from 0 to 6A.
Connection is made outside by cables. To regulate the same tension on each power
supply at about 0.1V, before the connection.
ESCLAVE / SLAVE
MAITRE / MASTER

4. PRELIMINARY INSTRUCTIONS

4.1 PACKAGING

During its transport, the power-supply is protected by a «Bull-pack» wrapping and
placed in a cardboard box avoiding any damage.
Keep this material, you may use it later on.
Packing list :
1 instructions manual
1 Power-supply : ALR3003D 1 cardboard packing piece
- 11 -
-
+
Charge / Load
-
+
-
+
Charge / Load
-
+
1 «Bull-pack» wrapping 1 cardboard wrapping
1 Mains cord