SECTION 7: CONNECTORS, APPLICATIONS & PROTECTION FEATURES
Entire Contents Copyright
2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
42L Series Modular DC Load Operation Manual
Page 40 of 88
KEY# Description
7
This readout can be in one of two modes: Normal or Setting mode.
In “Normal” mode, this 5 digit LCD displays the power dissipated by the DC load when the load is
ON.
In “Setting” mode, this LCD displays the following setting parameters. The rotary knob is used to
scroll through these settings:
1.
PRESET ON mode display will individually show:
a.
CC mode's current programming value display, the unit is "A"
b.
CR
mode's resister programming value display, the unit is “Ω”
c.
CV mode's voltage programming value display, the unit is “V”
d.
CP mode's power programming value display, the unit is “W”
2.
LIMIT ON mode display will individually show :
a.
V_Hi (upper limit voltage) & V_Lo (lower limit voltage) value display, the unit is "V"
b.
A_Hi (upper limit current) & A_Lo (lower limit current) value display, the unit is "A"
c.
W_Hi (upper limit power) & W_Lo (lower limit power) value display, the unit is "W"
d.
NG programming display will show [ON] or [OFF]
3.
DYN setting ON mode display will individually show :
a.
T-Hi (level high time)& T-Lo(level low time) programming value display, the unit is "ms"
b.
Rise/Fall current slew rate programming value display, the unit is "(m)A/us"
4.
Config ON mode display will individually show:
a.
SENSE programming display shows [ON] or [AUTO]
b.
LDon & LDoff value displayed, the unit are "V"
c.
Load polarity value display shows [+LOAD] or [-LOAD]
5.
Short test Enable, OCP test Enable and OPP test Enable mode will show [START]
6.
Short Setting mode
a.
Short setting display will show “CONTI”, Short time setting; the unit is “ms”
b.
V-Hi & V-Lo value display, the unit is "V"
7.
OPP Setting mode
a.
OPP PSTAR, OPP PSTEP and OPP PSTOP value display, the unit is “W”
b.
OPP Vth value display, the unit is “V”.
8.
OCP Setting mode
a.
OCP ISTAR, OCP ISTEP and OCP ISTOP value display, the unit is “A”
b.
OCP VTH value display, the unit is “V”
During OCP test & OPP test, display will show [RUN]
When over power protect: Display will show [OPP]
When over temperature protect: Display will show [OTP]
8
MODE and CC, CR, CV, CP Indicator
There are four operating modes that can be selected by pressing the "MODE" key. The sequence is
Constant Current ( CC ), Constant Resistance ( CR ), Constant Voltage ( CV ), Constant Power ( CP )
and then repeats while pressing the "MODE" key. The CC, CR, CV or CP mode indicator will be lit
respectively when the appropriate operating mode is selected.
9
Channel A or B selection keys
Selects channel A or B of the load module. Settings made apply to the selected channel only.