Controls and Indicators
Two separate power output terminals: one power limited terminal with 4A
max @ 24VDC capacity and one non-power limited terminal with 12A max
@ 24VDC capacity (total not to exceed 12A)
Both output terminals have current measurement capability
Auto resettable current protection circuits for overload and short circuit
Access to CC-5/CC-2 System bus
Communicates via CAN protocol
The PSX-12C occupies one network address in the CAN network and has three func-
tional components: the Controller, the Power Supply Extender and the Interface Board.
The Controller monitors the status of the Power Supply Extender (loss of network
communication, 24VDC terminal overload and the status of the battery). This informa-
tion is relayed to the User Interface, where applicable, and is communicated to the
PMI-S for system reporting. The Controller also allows the PMI-S to query the state of
the power supply extender and its current load and can send a diagnostics command
to the PSX-12C.
The Power Supply Extender has an Off-line switch mode power converter and power
factor correction circuit to improve conductive RF emission at low frequency. It is
designed to take voltage inputs of 120VAC-240VAC at 50Hz/60Hz and has one
resettable circuit breaker that can also be used as a battery power switch.
The Interface Board provides diagnostics LEDs, system connections and the terminal
connections on the PSX-12C.
The PSX-12C has one reset switch, six LEDs, one address switch, one circuit breaker,
two terminal blocks, two terminal connections and two 60 pin flat ribbon connections
as shown in Figure 2. The ribbon cable connectors are used to connect the PSX-12C
with a PSC-12C, additional PSX-12-Cs or a Card Cage (CC-2/CC-5).
A reset switch is located on the top of the front panel. Pushing the reset switch re-
initializes the PSX-12C operation.
The LEDs located at the top left of the module and are defined as follows:
MODULE FAIL -
CAN FAIL -
HNET FAIL -
Normally ON. When illuminated, indicates
that the PSX-12C is powered from the AC
mains. When flashing, indicates that the
PSX-12C is powered from the battery.
Normally OFF . When illuminated indicates
that the module microprocessor has failed.
Normally OFF . When illuminated, indi-
cates that CAN communication with the
PSX-12C has terminated.
Normally OFF . Not used for E100