SSM-LE Series
Operations Manual
Eberle Design Inc.
Page 6
This expanded operating voltage range for cabinet components allows the SSM-LE Series
to place the intersection into flash and return to normal operation in an orderly manner
when the AC LINE voltage is sufficient for proper operation. The SSM-LE Series
should be
the first component in the cabinet to sense a low voltage condition and the last component
to sense a proper AC LINE operating voltage.
The AC LINE and AC NEUTRAL inputs are used to generate the internal voltage supplies
required to operate the monitor. AC NEUTRAL also serves as the return for all AC signals
including RED ENABLE. EARTH GROUND provides an independent connection to the
chassis of the unit and is isolated from AC NEUTRAL and LOGIC GROUND. LOGIC
GROUND is provided for inputs which are isolated from AC NEUTRAL (i.e. +24V Monitors,
CVM, CONTROLLER WATCHDOG, EXTERNAL RESET, and 24V MONITOR INHIBIT).
LOGIC GROUND may be tied to AC NEUTRAL if desired.
