Vertiv™ NetSure™ +24 VDC to -48 VDC Converter System Installation and User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
17
Output Current Signal Reference
The output current signal (also provided at the output current test points on the front door of the main shelf) can be selected to be
referenced to plus battery (input), referenced to minus battery (input), or not referenced as detailed below. The output current signal
can be set at 1A/mV or 400A/50mV per the “
Setting Jumper and Switch Options”
section of this document.
•
Referenced to Plus Battery (input):
Provide a jumper between terminals 4 (+BT) and 5 ( IO) of TB2.
•
Referenced to Minus Battery (input):
Provide a jumper between terminals 3 ( BT) and 6 (+IO) of TB2.
•
Not Referenced:
Do not provide a jumper.
Output Voltage Monitoring
•
An output voltage monitoring device can be connected to terminals 7 ( VO) and 8 (+VO) of TB2. These terminals are
internally paralleled with the test points provided on the front door of the main shelf.
Emergency Shutdown (Estop)
•
The converter modules can be inhibited by applying an external ground signal (24V Return) to terminal 9 of TB2. Converter
modules automatically restart upon removal of the ground signal.
Figure 4.2: External Alarm, Reference, Monitoring, and Control Connections
Inside View of Main Shelf’s Front Door
TB1
1
9
1
12
TB2
P2
P1
TB1
1
9
1
12
TB2
Conv
Major
Conv
Critical
Fuse / CB
Low Input
Voltage
NC C NO
NC C NO
NC C NO
NC C NO
E
S
T
O
P
+VO
-VO
+IO
-IO
+BT
-BT
CANH
CANL
CAN
TERM
P2
Recommended Torque is 5.0 in-lbs.
Recommended Torque is 5.0 in-lbs.
Low Input Voltage, Conv Critical, and Conv Major relays are energized
for normal operating conditions and de-energized for an alarm condition.
Fuse / CB relay is de-energized for normal operating conditions
and energized for an alarm condition.
Relay contacts shown represent normal system operation.
