Unipower Guardian Access 3U - Page 5

Page 5
POWERING TECHNOLOGY
Manual No. MS0027-MAN rev. 4
guardian_access_3u_ms27-man-rev4-0817.indd
FIGURES
Figure 2-1 Power System Overview .............................................................................................8
Figure 2-2 Principal of Operation .................................................................................................9
Figure 2-3 Power System With Extension Rear and Top Cover Kit ..........................................10
Figure 2-4 Power System with Rear and Top Cover Kit ............................................................10
Figure 2-5 Guardian Rectier .....................................................................................................14
Figure 4-1 System Mounting - Cabinet ......................................................................................24
Figure 4-2 System Mounting - Open frame / relay rack .............................................................25
Figure 4-3 Remove Top Cover ...................................................................................................26
Figure 4-4 Remove Top and AC Input Cover .............................................................................27
Figure 4-5 Cable Entry Options ..................................................................................................27
Figure 4-6 Grounding Connection ..............................................................................................28
Figure 4-7 Grounding Connection with Extended Rear Cover - Two Point ..............................28
Figure 4-8 Grounding Connection with Extended Rear Cover - Single Point ...........................29
Figure 4-9 AC Input Terminal Block (1-phase) ..........................................................................30
Figure 4-10 AC Input Terminal Block (3-phase) ..........................................................................30
Figure 4-11 DC Load Connection ................................................................................................31
Figure 4-12 Battery Connection ...................................................................................................32
Figure 4-13 PCC External Board ..................................................................................................33
Figure 4-14 ACC External Board .................................................................................................33
Figure 4-15 ACC Relay Board .....................................................................................................34
Figure 4-16 2-block Symmetry Measurement (for illustration only) ...........................................35
Figure 4-17 4-Block Symmetry Measurement (for illustration only) ..........................................35
Figure 4-18 Temperature Sensor Connection ...............................................................................36
Figure 4-19 RS232 Connection ....................................................................................................37
Figure 4-20 Rectier Installation ..................................................................................................38
Figure 7-1 Unlocking and Removing the Controller ..................................................................49
Figure 7-2 Replacing a Surge Protection Module ......................................................................50
TABLES
Table 4-1 Recommended Electrical Cable Size ........................................................................23
Table 5-1 Float/Boost Charge Voltages .....................................................................................41
Table 5-2 Commissioning Record .............................................................................................43
Table 6-1 Connection Torque Setting Check ............................................................................44