21
9400016-J0 Rev E
CXPS-E3
User Guide
4.10 400A LVD override
For systems with LVBD an override interface is provided, see Figure 10. This interface board includes three LEDs
indicators to provide visual status indication, and two customer connections for remote control and monitoring:
LEDs
• BUS (Green) Lit when the bus connected to the LVD has power connected.
• COIL (Green) Lit when the LVD coil is energized. This requires the BUS to have power and one of the controls
(L-ADIO, REMOTE, or LVD Over-ride) to be active
• O/R (Yellow) Lit when the override switch is in the over-ride position. This should only be on during
maintenance.
Connections
• OVERRIDE 48V/5mA signal, active when over-ride switch is in over-ride position.
•
COIL CTRL Control input for LVBD coil, can be configured for remote control or remote disable:
When configured for remote control (default), a dry contact connected to the coil control input can turn on the
LVBD independently of the LVD or the automatic control.
•
When configured for remote disable, the coil control input must be shorted by a dry contact for either the
automatic control or the LVD override to operate.
Figure 10 — LVD override
Figure 11 — LVD override interface
