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When working in CR, CC and CP mode, input current is ascending continuously, the load current will be limited by a
current limit circuit, Load will work in the over current protection state , VFD display the information as CC.
When work in CV mode, transition mode and List mode, Input current exceeds the current limit, Buzzer is mooing,
VFD display the flashing current value.

Over Power

If the input power exceeds the power limit in the normal operation mode, Load will work in the over power protection
state. VFD displays the information as CW.
When work in transition mode and list mode, if the input power exceeds the power limit. Buzzer is mooing, VFD display
the flashing current value and voltage val ue.

Reverse Voltage

This feature protects the load module in case the input DC voltage lines are connected with wrong polarity, if a reverse
voltage condition is detected, Buzzer is mooing. VFD display as following:

Over Temperature

If internal power components ‘s temperatur e exceeds safe limits (80℃), Over temperature protection will be
activated . Load will turn off the input and Buzzer is mooing, VFD display as following:
Remote Sense Function and Trig ger Function
When working in CV, CR and CP mode, if load consumes a large current, it will cause depressed voltage in the
connection line between the UUT (Unit Under Test) and the load’s terminals. In order to assure testing precision, this
DC load provides remote testing terminals in the rear panel. Users could test the output terminals voltage of the UUT
through it. Users should set the Load to REMOTE mode before using the function.
4 Pin trigger and remote sensing connectors:

+

_

IN
..
Remote Sensing: SENSE (+)
and
SENSE (–)
are the remote sensing i nputs. By eliminating the effect of the
inevitable voltage drop in the load leads, remote sensing provides greater accuracy by allowing the load to regulate
directly at the source's output terminals.
Sense
A
Trigger
B
REVERSE VOLTAGE
OVER HEAT