Vortex
41
Table 16: Features of the Power Monitoring Module
Letters refer to labels in Figure 11.
Mains (connector)
(A)
Input from mains supply, when the optional Power
Supply Unit is fitted. This is rated at 29.5V, 150W,
with input at 110-120V or 220 to 230Vac(switched),
50-60Hz.
24Vdc In (connector)
(B)
If a 24Vdc external power source is specified, then the
Mains Power Supply Unit is not fitted. A 20-30Vdc
supply fused at 5A must be provided. The Power
Monitoring Module includes 24V filtering.
You must ensure that the 24Vdc is suitable for use with
Vortex.
If internal batteries are expected to be charged from an
external DC supply then the supply should have a
minimum voltage of 29.0V
Battery (connector)
(C)
Connection to backup batteries. See section 4.7.4.
5A F (two fuses)
The lower fuse is connected to the batteries (if fitted)
and the upper fuse is connected to the dc output of the
mains power supply and the 24V dc input (item B).
Green LED
This indicates that there is DC input to the power
monitor board, either from the mains power supply unit
or from the DC input (item B)
LK1 and LK2 (links)
(F)
LK1 must be fitted if the system does not have standby
batteries fitted. If neither the link nor the batteries are
fitted then a Power Status Fault will always be present.
If the system is to be powered up without an
external power supply, LK2 can be shorted to
enable the system to power up from fully-charged
batteries.
Ribbon cable
connector (G)
This connects to the Node Controller Module
(section 4.2) and the Display Module (if fitted).
TP1 and TP2 Earth
links (H)
When Vortex is supplied in the standard enclosure, it is
supplied with the enclosure isolated from 0V and the
earth link fitted to TP2. This link is required for
systems where the 0V is isolated from the enclosure. If
the system requires the 0V to be connected to the
enclosure, move the link wire to TP1. See Appendix F
for further details of earthing.
DC Output This is the output from the power monitor
module for connecting to the bus assembly see section
4.3