CHAPTER 4
OPERATING INSTRUCTIONS
Entire Contents Copyright
2004 by Adaptive Power Systems, Inc. (APSI) • All Rights Reserved • No reproduction without written authorization from APSI.
APS-1000 Series
4 - 5
OM-001-01000-000-04.0
Frequency (Display) Setting
When the system is in RESET (Standby) or the TEST (Output ON) mode, you can
adjust the output frequency.
Frequency Display
︿
and
﹀
Buttons
Pressing the
︿
or
﹀
frequency adjust buttons causes the value to increase/decrease
one step every 0.3 seconds. Holding a button "in" forces the rate of change to
accelerate. When the frequency selection remains unchanged for two seconds, the
frequency display will flash once. The unit will memorize the current frequency setting.
The system will then exit the frequency-setting mode. For frequencies between 45 –
99.9 Hz, the adjustment is 0.1 Hz per step. For frequencies between 100 Hz – 500 Hz,
the adjustment is 1 Hz per step.
Frequency Display 50Hz and 60Hz Buttons
At any time you can press one of these buttons and the frequency will change from its
present value to either 50 Hz or 60 Hz (depending on which button you press).
Note:
Manual frequency adjustments will not automatically change the frequency
values stored in memory locations M1, M2, or M3. To change stored frequency
parameter values, please refer to the Section
Program Memory Procedures
.
Note:
If your unit shuts down due to a detected Error condition, the FREQUENCY
display shows an abbreviation for that error. For example, an over-current condition
will result in OCP being displayed. For a listing and discussion of all displayed error
conditions, see the Error Messages section of this chapter.
F R E Q U E N C Y
50Hz
60Hz
