F igu re 8 .3 Lo catio n o f parallel po rt J 3 o n bypass co n tro l m o du le
8.2.6 Remote EPO
In addition to the EPO switch provided on the touch screen of each UPS module for controlling the EPO of each module
respectively, the parallel system also provides remote EPO function for controlling all UPS modules to shut down
simultaneously from a remote terminal, as shown in Figure 8.4 on the facing page.
N O T E:
1. T h e rem o te EP O switch m u st pro vide dry co n tact sign al, wh ich is n o rm ally o pen o r n o rm ally
clo sed.
2. T h e o pen circu it vo ltage pro vided is 12 Vdc, < 20 m A .
3. T h e extern al EP O device is co m po sed to co n figu re an o th er co n tro l system wh ich can
disco n n ect UP S m ain s su pply o r bypass in pu t.
4. P in s 1 an d 2 o f th e n o rm ally clo sed EP O -J 5 po rt o n th e bypass m o du le h ave been lin k ed in
facto ry.
8 Parallel System and LBS System
136
Vertiv™ Liebert® APM Plus User Manual
Summary of Contents for APM 0250kMK16FN02000
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