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OPERATION
AC Input Protection Device
Requirements/Recommendations
Refer to the system documentation supplied with the system the rectifier is installed in.
Local Indicators
Location and Identification: Refer to Figure 5.
Description: There are three (3) indicators located on the rectifier's front panel. The functions of
these indicators are as shown in Table
6.
NOTE! AC voltage must be present at the rectifier input terminals.
Rectifier High Voltage Shutdown and Lockout Restart
Procedure
Remove the rectifier, wait 30 seconds or more (until the LEDs on the rectifier extinguish), then re-
insert the rectifier.
The rectifier can also be restarted from the ACU+ LCD or WEB Interface menu (via the rectifier
Reset command, found in the Manual menu in the LCD menus or under the Rectifier Control Tab in
the WEB Interface).
Rectifier Current Limit
When setting total rectifier current limit, the set point to each rectifier is the total set point divided
by the number of rectifiers. For example, if the system contains five rectifiers and the current limit
is set to 150 amps then each rectifier has a current limit set point of 30 amps. If one or more
rectifiers are removed or fail it will take several seconds for the individual set points to the
remaining rectifiers to be reset. In the example given, if one rectifier is removed the current limit
set point will drop to 120 amps (30 amps times four remaining rectifiers) until the controller can
send updated set points to the remaining rectifiers. This takes a couple communication cycles
(several seconds) after which each rectifier would have a new set point of 37.5 amps for a total of
150 amps. The total current limit of the rectifiers should not be set such that the loss of the
redundant rectifiers will cause this temporary set point to drop below the actual maximum
expected load. If batteries are used on the rectifier output, the batteries should support the load
until the current limit set points can be re-established due to loss of a rectifier.
Figure 5: Local Indicator Locations
Vertiv
| NetSure Rectifier Module User Manual (UM1R483000e3) | Rev. 1.0
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