ML0071-601-06 Super Seal™ Operations Manual Rev. A
ENERCON INDUSTRIES
14
LOSS OF SEALING INDICATOR ALARM (LSI)
The Loss of Sealing Indicator Alarm provides you
with a set of dry contacts that will allow you to drive
an external alarm, or monitor the power supply’s
output status using a monitoring circuit of your
choice.
The alarm circuit is programmable from the power
supply front panel, giving you the ability to quickly
and easily customize the alarm setpoint for a wide
variety of products.
As shown in
Figure 24
on
Page 13
, a contact cable
is provided to extend the alarm contacts to your
alarm or monitoring circuit. The alarm contacts
consist of a Common (COM), Normally Open (N.O.)
and a Normally Closed (N.C.) contact. The contact
cable connects to the LSI CONTACTS connector on
the rear panel of the power supply and the open end
of the contact cable can be run to your external
alarm or monitoring circuit.
Typically the N.C contact will be used for triggering
your alarm circuit, as this is the non-powered state of
the relay contacts. The relay will only change state
when the power supply is running and the output
percentage is greater than the programmed trip
setpoint; see
ADJUSTING THE LOSS OF SEAL
INDICATOR ALARM SETPOINT
on
Pages 17
-
18
.
When using the alarm contacts to an alarm circuit,
ensure the supplied voltage does not exceed the
contacts rating of 24 VDC, 2 Amps.
DANGER!
The contact cable is provided to extend the dry
contacts of the alarm circuit only.
All necessary precautions should be taken
when wiring the contact cable to powered
external circuitry.
When the contact cable is connected to
external powered circuits, proper lockout / tag
out procedures should be observed for the
external circuits.
This must be done before disconnecting the
connector cable from the power supply to
prevent the cable from being energized when
disconnected
.
