Vertiv
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NetSure 502NGFB Installation Manual (Section 6009)
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Rev. Z
70
3.
Open the external AC disconnect(s) or protective device(s) that supply power to all of the rectifier
modules.
a)
Requirement
: An audible alarm sounds. Alarm will be silenced in Requirement d.
b)
Requirement
: On subject rectifier module(s), the “Protection” indicator goes from off to yellow.
After approximately 30 seconds, the green “Power” and yellow “Protection” indicators go off.
c)
Requirement
: ACU+ “Critical/Major” alarm indicator goes from off to red.
d)
Requirement
: ACU+ displays “Rect AC Fail” alarm.
To see the specific alarm(s), press ENT to display the Main Menu. Navigate as follows: “Status”
(ENT), “Active Alarm” (ENT). The Active Alarm screen lists two critical alarms. Press ENT. “Power
System CAN Comm Fail Critical” is displayed. Scroll down by pressing the left (down) arrow key.
“Rect Mains Failure Critical” is displayed.
e)
Requirement
: External “AC Fail” (Relay 6) and “Critical” (Relay 1) alarms activate.
4.
Return external AC disconnect(s) or protective device(s) to the ON position.
a)
Requirement
: “Power” indicator on subject rectifier modules goes from off to green.
NOTE!
A “Rect Group All Rect No Response” alarm may activate briefly.
b)
Requirement
: ACU+ “Critical/Major” alarm indicator goes from red to off.
c)
Requirement
: Press ESC repeatedly to return to the Main screen. ACU+ displays “No Alm”.
d)
Requirement
: All external alarms deactivate.
Checking Rectifier Alarm
Procedure
1.
Verify system is operating and no alarms are present.
2.
Verify the ACU+ displays the Main screen. If not, press ESC repeatedly to return to the Main screen.
3.
Pull one Rectifier Module half way out of the shelf. To do this, first loosen the captive fastener securing
the top of the latch mechanism to the front of the Rectifier Module. Pull the top of the latch mechanism
away from the Rectifier Module (this will retract the latch mechanism located on the underside of the
Rectifier Module). Refer to
for latch mechanism illustration.
a)
Requirement
: An audible alarm sounds. Alarm will be silenced in Requirement c.
b)
Requirement
: ACU+ “Critical/Major” alarm indicator goes from off to red.
c)
Requirement
: ACU+ displays “Alarm”.
To see the specific alarm, press ENT to display the Main Menu. Navigate as follows: “Status” (ENT),
“Active Alarm” (ENT). The “Active Alarm” screen lists one major alarm. Press ENT. “Rect (###)
Comm Fail Major” is displayed.
d)
Requirement
: External “Rectifier” (Relay 8) and “Major” (Relay 2) alarms activate.
