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Figure 3-3: Manual Operation Pushbuttons.
Epilson STS
TM
Operation3 —12 86-504004-00 B03
Manual Control keyed switch- The "Return to Preferred Source", "Change
Preferred Source" and "Override Limits"
manual control pushbuttons are active
(enabled) in the "ON" position,
and inactive (disabled) in the "OFF"
position.
Override Limits pushbutton
- enables manual transfers in out-of-phase conditions
when depressed simultaneously with the CHANGE
PREFERRED SOURCE pushbutton.
- requires MANUAL CONTROL switch to be in
the ON position.
Change Preferred Source pushbutton
- selects other source as preferred, causing
a transfer to the selected source if it is not
the active source.
- requires MANUAL CONTROL switch to be
in the ON position.
Lamp Test pushbutton - turns on all LEDs on the front panel
- sounds the audible alarm horn
Alarm Silence pushbutton - always active
- silences audible alarm horn
Return to Preferred Source pushbutton
- temporarily enables auto-retransfer when
retransfer function is switched off (re-transfer
disabled) and initiates a retransfer back to the
preferred source, overriding the owner selected
auto retransfer time delay. Auto-retransfer will
again be disabled after the re-transfer is
completed.
- requires MANUAL CONTROL switch to be
in the ON position.
ALARM
SILENCE
LAMP
TEST
RETURN TO
PREFERRED
SOURCE
CHANGE
PREFERRED
SOURCE
OVERRIDE
LIMITS
ON
OFF
MANUAL
CONTROL