Series Operation (Ser) - VOLTCRAFT VLP-USB Série Mode D'emploi

• The voltage value "V" is displayed on the display (3 or 21). The two voltage displays (3 and 21) show the same
voltage at the output and may not be added together.
In normal mode, the device operates in constant voltage mode. This means that the power supply emits a
constant, preset output voltage. This operation is indicated with a green status display "CV" (5 or 16).
Setting the current limitation of output A or C
• Disconnect consumers connected to output A (36 and 37) and output C (28 and 29). Before setting the current
limitation, always set the correct output voltage.
• Turn the "AMPERE" rotary control (8 or 19) fully to the left (neutral position).
• Press and hold the "C-LIMIT" button (30 or 38) during setting. The respective output is switched off automatically
when the "C-LIMIT" button is pressed. The voltage display then returns to approx. 0.
• The max. current strength (current limitation) can be set with the "AMPERE" rotary control (8 or 19). After complet-
ing setting, release the "C-LIMIT" button. The display shows the actual current strength again (with output 0.00 A
unloaded). The "CV" status display (5 or 16) lights up.
• Connect the consumer to output A (36 and 37) and switch it on. Pay attention to the polarity. The output currents of
the two outputs add up and are bundled at output A.
The "CC" LED display (7 or 18) lights up at the respective output as soon as the set current level is ex-
ceeded and current limitation is active. Constant current mode is active.

6.4.6. Series operation (SER)

The two laboratory outputs (OUTPUT A and C) are internally connected in series. Due to the series connection, the
output voltage of the two outputs is added together. In this mode, the max. output voltage is max. 80 V/DC. The output
current is max. 3 A.
The internal wiring makes it possible to tap the max. output voltage of 80 V directly via the two sockets at output A and
C. No external cable bridges are required.
Disconnect consumers connected to output A (36 and 37) and output C (28 and 29) before changing oper-
ating mode.
Setting the output voltage
• On the "MODE" rotary switch (32), select the "SER" operating mode.
• Move the "AMPERE" current adjusters (8 or 19) to the centre position.
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