Vox Power NEVO Plus 1200 Series, User Manual

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NEVO+1200 Series
AC/DC MODULAR CONFIGURABLE POWER SUPPLIES
User Manual
Page 10 of 40
DOC-MN-006-03, NEVO+1200 User Manual
Vox Power Limited | Unit 2, Red Cow Interchange Estate, Ballymount, Dublin 22, D22 Y8H2, Ireland | T +353 1 4591161 | www.vox-power.com
Signalling
Output Signals
The NEVO+1200 has two isolated output signalling sections arranged in groups, the first covers slots A to D and the second covers slots E to F. To reduce
cabling in the end system, all major input and output signals and the global 5V bias supply for each group are wired to a single signals circuit that is
accessed through the connectors (J2a and J2b) located at the output side of the chassis as shown in the diagram below.
J2a J2b
Pin Name Description Pin Name Description
1 PG1 Power Good
Slot A
1 PG5 Power Good
Slot E
2 INH1 Inhibit 2 INH5 Inhibit
3 PG2 Power Good
Slot B
3 PG6 Power Good
Slot F
4 INH2 Inhibit 4 INH6 Inhibit
5 PG3 Power Good
Slot C
5 PG7 Power Good
Slot G
6 INH3 Inhibit 6 INH7 Inhibit
7 PG4 Power Good
Slot D
7 PG8 Power Good
Slot H
8 INH4 Inhibit 8 INH8 Inhibit
9 GINH1 Group 1 inhibit
Slot A-D
9 GINH2 Group 2 inhibit
Slot E-F
10 ACOK1 AC mains signal 10 ACOK2 AC mains signal
11 +5V1 Global 5V Bias 11 +5V2 Global 5V Bias
12 COM1 Common 12 COM2 Common
All of the signals are referenced to the relevant group bias supply common rail (COM) and external control and/or monitoring circuits can be easily
powered and interfaced to the PSU through these connectors. Both entire signals circuits are fully medically isolated and can be considered a SELV
output. The table below lists the isolation voltages.
Signals isolation voltages
Signals to Input 4000 Vac
Signals to Chassis 250 Vdc
Signals to Output 250 Vdc
Bias supplies (+5V1 & +5V2 [Power])
The NEVO+1200 series has three separate isolated bias supplies, one (J6) located near the AC mains input connector (J1) and two more located at the
output side connectors (J2a & J2b).
Both output side bias supplies generate 5V and are rated up to 1A. These supplies are available whenever the AC mains voltage is connected and the
input module is operating correctly. A shutdown through the SD pin on J6 or any of the following abnormal conditions will cause the entire unit to latch
off and will disable both of these 5V bias supplies:
•
Over temperature of any part of the unit
• Over voltage on the output
•
Internal over current (device failure)