MGE UPS Systems 3.5 to 21 kVA N+1 - Manual (Page 27)

Installation & Operation - Line To Neutral page 2 — 9
Owner’s Manual
2.6 Software Configuration Set-Up
The factory default configurations of the inverter plant is: 120V, 60Hz, Utility voltage connected and Mode of oper-
ation is Online. If the factory configuration is different, the inverter will ship with marking that will describe the invert-
er plant configuration. Use the configuration setup program when a different configuration is required or when a new
processor is installed.
A lap-top personal computer (PC) with the field service set-up software for the S4 inverter family needs to be avail-
able and connected to the DB-9 connector of the display panel via the appropriate cable. In systems that do not
have the redundant controller printed circuit board, there is no need to open the display panel or remove the redun-
dant controller, skip the dual and redundant controller setup.
2.6.1 Dual Processor Set-Up
The following procedure should be followed for systems that contain a redundant (second) microprocessor. Using
a #2 Phillips screw driver, remove the four screws securing the display panel to the receiver rack. Using the
Phillips”screw driver, remove the two screws holding the microprocessor boards in place. The circuit board secur-
ing bracket is also a circuit board extractor. Using this bracket, pull the top microprocessor circuit board out slight-
ly so that it is disengaged from its 70 pin edge plated connector. Return the display panel back to its vertical posi-
tion and install the two screws to hold the panel in position. Do not tighten the screws very much, since they will be
removed again.
2.6.2 System Personalization
Before installing the power modules into the receiver rack, apply the 48 DC input voltage (44 to 56VDC). The con-
troller (microprocessor) within the unit should become activated. The status indicators on the display panel should
sequence through their self test mode, changing from red to yellow to green, then momentarily off in approximate-
ly 4 seconds. After this, ignore all the LED displays. Using the laptop PC, call up the filed service set-up program.
In the Windows menu, select the desired AC output voltage, frequency, and modes of operation. The Windows
menu will appear similar to Figure 2-5.
Figure 2-5: Line To Neutral Setup Screen.
After the selections are complete, click on the Save button. The data will be sent to the appropriate address in the
controllers “EEROM”. Remove the applied 48VDC to the system by turning off the main DC feed circuit breaker.
x ? Line To Neutral Inverter Configuration
Rack kVA rating Utility
Inverter voltage Mode
Inverter frequency
DC fail auto restart
Cancel Save
7.0 14.0 21.0
Voltage connected
AC Free
On-line
Off-line
110 115 120
220 230 240
50 hz 60 hz