Unique Broadband Systems Ltd. DRU2KW ユーザーズマニュアル

Manual No. x75mk3-11

x75-man-Rev11-0815.indd

 

One by one, turn each output circuit breaker to the ON position and/or insert a GMT 

fuse and measure the DC voltage across the corresponding output terminals.  The 

voltage should again read approximately 54.4, 27.2, or 13.6 volts.  After each output 

is measured, turn OFF that circuit breaker and/or remove the GMT fuse and turn 

ON and/or insert a fuse in the next one. After measuring the last circuit, turn off that 

breaker and/or remove the GMT fuse and make sure that all output breakers are in 

the OFF position and/or all fuses are removed.

 

Unplug or disconnect the AC input power source.  Before touching any terminals 

wait 5 minutes for the internal storage capacitors to discharge.

 

At this point, before the final installation connections, read section 13 covering 

Controller setup.  Next, make any required signal connections, controller adjustments, 

temperature compensation adjustment and alarm enabling settings.

 

WARNING: Remember to take precautions each time the system is turned on and also 

when connecting or disconnecting the battery.  Remember that the battery presents 

an energy hazard at its terminals. Also remember to allow 5 minutes for internal 

capacitors to discharge after disconnecting the AC input power and the battery.

 

With input AC power unplugged, the battery disconnected and no other power sources 

connected to the loads, make sure that all load circuit breakers are set to the OFF 

position and/or all GMT fuses are removed.

 

Connect load wires to each set of output terminals, one at a time.  Note that the front 

panel breaker and fuse numbers directly correspond to the output terminal numbers.  

 

 

Be sure to connect the polarities correctly.

 

WARNING: Improper polarity of the battery connection may damage the power 

system. Take precautions when installing the battery and note that the battery cables 

are “hot” (live) and present an energy hazard.

 

With AC input unplugged, remove the three rectifier modules from the system chassis. 

Make sure all load circuit breakers are in the OFF position and/or all GMT fuses 

removed.  Set the battery circuit breaker to the OFF position.  Carefully connect the 

battery cables to the battery terminals shown in Figure 4 while observing the correct 

polarity as described in section 9.4.