AC25/30QTP-1 and -3 Operations Manual.... 49
CONVERTER OUTPUT IMPEDANCE CONTROL
Nominal Impedance (Zo) Duty Cycle: 50
Transfer Impedance Duty Cycle: 100%
More Less Forward Back Exit
GENERATOR FREQUENCY ANALYSIS DISPLAY
Generator MIN Frequency: XX.XXHz
Generator MAX Frequency: XX.XXHz
Refresh Exit
7.4 GENERATOR FREQUENCY ANALYSIS
Press the SYSTEM STATUS + GENERATOR POWER buttons to access the Generator
Frequency Analysis Display. Used for observing lifetime generator frequency range.
7.5 CONVERTER OUTPUT IMPEDANCE CONTROL
Press the SHORE POWER + F3 (Master converter) buttons to access the CONVERTER
OUTPUT IMPEDANCE CONTROL display.
Press the More (F1) button to increase the setting, the Less (F2) button to decrease the setting,
the Forward (F3) button to advance to the Transfer Impedance setting, the Back (F4) button to
return to the Nominal Impedance setting, and the Exit (F5) button to save the settings and exit.
Default Range Increments
Nominal Impedance Duty Cycle 50% 0 - 100% 1%
Transfer Impedance Duty Cycle 100% 0 - 100% 1%
Application: if loading-based, line-drop losses in a yacht are such that locations remote of the
converter and Ship's Bus experience undesirable, lower-than-expected voltages, the Nominal
Impedance Duty Cycle can be lowered via this control to increase output voltage. AGC
(Automatic Gain Control-see section 7.6) must be disabled when using this function or the
modified voltage level will be re-compensated by it. Initially, a small change (start with 5%)
should be used in conjunction with re-measurement at the remote location to determine the
correction needed. Drastic changes in Duty Cycle will result in equally drastic voltage changes.
Transfer Impedance is usually only modified by factory trained personnel when commissioning a
converter. It can be used to fine-tune the Seamless Transfer function.
To Next Page
Loading...
