TDK-Lambda GENESYS 10KW - Standard Operation Modes

83
-
530
-
000 Rev.
G
33
CHAPTER 5 LOCAL OPERATION
5.1 INTRODUCTION
This Chapter describes the op
erating modes that are not involved in programming and monitoring the
power supply via its serial communication port (RS232/RS485) or by remote analog signals. Ensure
that the REM/LOC LED on the front panel is Off, indicating Local mode. If the REM/LOC LED
is On,
press the front panel REM/LOC button to change the operating mode to local.
-
For information regarding remote analog programming refer to Chapter 6.
-
For information regarding usage of the serial communication port refer to Chapter 7.
5.2 STANDARD
OPERATION
The power supply has two basic operating modes: Constant Voltage Mode and Constant Current
Mode. The mode in which the power supply operates at any given time depends on the output vol
t
age
setting, output current limit setting and the load resist
ance.
5.2.1 C
onstant Voltage Mode
1.
In constant voltage mode, the power supply regulates the output voltage at the selected value,
while the load cu
r
rent varies as required by the load.
2.
While the power supply operates in constant voltage mode, the VOLTAGE L
ED on the front panel
illuminates.
3.
Adjustment of the output voltage can be made when the power supply output is enabled (Output
On) or disabled (Output Off). When the output is enabled, simply rotate the VOLTAGE encoder
knob to program the output vol
t
ag
e. When the output is disabled, press the PREV button and then
rotate the VOLTAGE encoder knob. The VOLTAGE meter will show the programmed output vol
t-
age for 5 seconds after the adjustment has been co
m
pleted. Then the VOLTAGE meter will display
“OFF”.
4.
Adjustment resolution can be set to coarse or fine resolution. Press FINE button to select b
e
tween
the lower and higher resolution. The FINE LED turns On when the resolution is set to FINE.
NOTE
NOTE
5.2.2 Constant Current Operation
1.
In constant current mode, the power supply regulates the output current at the selected value, while
the voltage varies with the load requirement.
2.
While the power supply is operating in constant current mode, the CU
RRENT LED on the front
panel illuminates.
3.
Adjustment of the output current can be made when the power supply output is enabled (Ou
t
put
On) or di
s
abled (Output Off).
-
Disabled output (Off): Press PREV button and then rotate the Current encoder knob. The
CUR
RENT meter will show the programmed current for 5 seconds after the adjustment has been
completed. Then the VOLTAGE meter will display “OFF”.
If after completing the adjustment, the display sh
ows a different value
than the setting, the power supply may be at current limit. Check the
load condition and the power supply current limit setting.
The maximum and minimum setting values of the output voltage are li
m
ited
by the Over Voltage protection and Under Voltage limit setting. Refer to
S
ections 5.3 and 5.4 for more details.
The maximum and minimum
setting values of the output voltage are li
m
ited
by the Over Voltage protection and Under Voltage limit setting. Refer to
Sections 5.3 and 5.4 for more details.