9400016-J0 Rev E
24
User Guide
CXPS-E3
attempts to reclose it within 2-3 seconds.
In the case where the state remains incorrect the Cordex HP attempts to correct it up to three consecutive times.
After those three attempts it generates a user alarm and waits 15 minutes before trying again. This overall cycle
of three attempts followed by a 15 minute pause continues until the contactor changes state, is disabled, or
serviced.
Contactor state
The contactor state is monitored through the L-ADIO on Digital Input D3. This can be seen on the Cordex HP
display or through the web interface.
Battery not present
The LVD Control Interface (LCI) uses power from the battery side to drive the contactor coil. Therefore if a
battery is not connected the contactor does not operate. Operation without a battery is described in the service
section.
4.11.3 Service operation
The LVD Interface Board provides two manual control buttons for service use: close, and open as shown in
Figure 1. To operate the contactor a pulse of current is sent to the contactor and for each of the operations there
is a yellow LED and a push button switch. Each yellow LED turns on when and if the pulse generator is charged
for the respective operation, that is, when it is ready.
CLOSE
OPEN
CONTROL POWER
RDY (YELLOW LED)
CTRL (SWITCH)
RDY (YELLOW LED)
CTRL (SWITCH)
(GREEN LED)
Note that the pulse generator charges through the Normally Closed terminal of the associated relay on the
L-ADIO. Therefore the associated control wiring must be plugged into the L-ADIO for the manual operation to
work, specifically K6 for close and K5 for open. This feature can be used to disable the Cordex HP controller so
that it cannot over-ride manual operation; the specific options and operations are as follows:
Operation
1. Disable the LVD: From the Cordex HP controller go to
System
>
DC System
>
Inventory
>
Disconnects
.
2. Push the button to put the LVD in the desired state.
3. Unplug K5/K6 (optional).
4. Perform maintenance work.
5. Plug in K5/K6 if unplugged in step 3.
6. Push the button to put the LVD in the desired state (optional).
7. Enable the LVD: From the Cordex HP controller go to
System
>
DC System
>
Inventory
>
Disconnects
.
Operation
K5
K6
Action
Close contactor but allow Cordex HP to re-open
Any
Plugged in
Press Closed
Open contactor but allow Cordex HP to re-close
Plugged in
Any
Press Open
Close contactor and prevent Cordex HP from re-opening
Unplugged
Plugged in
Press Closed
Open contactor and prevent Cordex HP from re-opening
Plugged in
Unplugged
Press Open
NOTE: If Cordex HP is non-functioning the above table can be used for operation of the LVD.
Control power LED
The Latching Interface Board also performs the ancillary function of combining the battery and rectifier outputs
for the Cordex HP and L-ADIO control devices so they are powered when either source is present. The Control
