4.6.4 Output High Voltage Protection (Initial)
Prior to closing the output breaker the output over voltage protection level should be set to the de
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sired level if different from the factory setting. Check the setting by scrolling through the adjustment
menu until O/P HV LEVEL ADJ is displayed and press the Enter/Select key. Use the same pro
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cess described for float setting to adjust the high output voltage shutdown level
When setting the output high voltage protection level, the following sequence of events occurs:
When O/P HV LEVEL ADJ is selected the output high voltage level is increased to 62V (for 48V
units) or 31V (for 24V units) and the output voltage is set to the last output high voltage level.
The O/P VOLTAGE can then be adjusted by pressing the Up or Down keys until the output voltage
of the module is set to the desired output voltage level.
Note: The O/P VOLTAGE changes approximately 5 mV (RSM 48/50), 2.5mV (RSM 24/100), 10mV
(RSM 48/30), or 5 mV (RSM 24/50) for each key press from 54 to 61 Volts for 48V units and 27 to
30 Volts for 24V units. The OUTPUT HIGH VOLTAGE LEVEL cannot be adjusted to a level less
than or equal to the equalize voltage (or float voltage) plus 0.5 volts (for 48V units) or 1.0 volt (24V
units).
When the Enter/Select key is pressed to set the OUTPUT HIGH VOLTAGE LEVEL, the microcon
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troller reduces the output high voltage level from 62V (48V units) or 31V (24V units) until the unit
trips and goes into O/P HV SHUTDOWN. The unit then stores that level, returns to the previous
mode of operation (float or equalize) and resets the O/P HV SHUTDOWN condition.
To confirm the setting use one of the test modes. Scroll through the menu until exit function is se-
lected. Depressing the enter key will return the unit to the normal mode.
4.6.5 D.C. Start-up
Close the output breaker, thereby connecting the unit to the load. If the high output shutdown trips,
the sense lines have probably been reversed. If so, shut the unit down and correct the polarity of
the lines. The Module Fail and yellow Module Status indicator should extinguish when the unit is
providing current above 5% of the rated output or when connected to a battery. The display should
have normal mode messages as defined in the menu tree. The green Module Status indicator for
OK condition should now be on. If not refer to the trouble shooting section of this manual.
Before closing the output breaker of other units, proceed to section 4.6.6 (paralleling).
4.6.6 Paralleling: Slope or Forced
The user has the ability to select either forced paralleling or slope methods of load sharing. If all
units are Argus RSM series then forced paralleling should be used. If selected the modules will
track automatically.
These initial adjustments will provide satisfactory operation of the modules during their initial (15
minutes) warm up.
010-030-C0 Rev E Page 26 of 42 ARGUS TECHNOLOGIES
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