Liebert 1500 - Manual (Page 48)

42 Maintenance
end of the rectifier AC cord into the corresponding female receptacle behind the junction box.
For the specific AC cable routing to be used with the Helios Rectifier 200E/48, refer to
Figure 35 in the case of a top fed system, or to Figure 36 in the case of a bottom fed system.
11. Make the ground and line connections as applicable, at the AC service panel.
12. Install the four bolts for the DC connections to the busbar risers at the rear of the cabinet.
13. Plug one end of the control and signal cable supplied with the rectifier into the DB25
connector at the rear of the rectifier.
14. Plug the other end of the control and signal cable into the corresponding connector on the
interface circuit board at the top (top fed system) or bottom (bottom fed system) of the rectifier
cabinet.
15. Operate the AC circuit breaker of the new rectifier to the “ON” position.
16. With the DC breaker in the “OFF” position, adjust the float, equalize and high voltage
shutdown voltage levels as required. Refer to the appropriate rectifier user manual (see 6.0 -
Reference Documents).
17. Install the corresponding sense fuse (RC) on the front of the controller.
18. Ensure that the FLS/FS switch on the rectifier is set to the same position as that of the other
rectifiers in the power system.
19. Operate the DC circuit breaker of the rectifier to the “ON” position.
20. Verify that the rectifier is sharing the load by observing its ammeter. It should display
approximately the same value as the ammeters on the other rectifiers. If not, adjust its float
and equalize voltage levels as described in the appropriate rectifier user manual (see 6.0 -
Reference Documents).
Figure 32 AC connections in a Helios Rectifier 200E/48
Partial view of
the rectifier’s
rear panel (right
side as viewed
from the rear)
TB1
AC cover
Teck cable or
flexible conduit
GRD
L1 L2 L3