ACH550 E-Clipse Bypass User’s Manual 2-47
Bypass functions overview
Bypass No Fault (7) [BYP NOT FLT]
If configured for Bypass No Fault, the relay is energized during normal operation.
The Bypass No Fault relay is de-energized when power is removed from the system,
a bypass fault has occurred or when the bypass motor overload/underload
protection has tripped. The specific nature of the fault is indicated on the bypass
control panel display.
Bypass Alarm (8) [BYPASS ALRM]
If configured for Bypass Alarm, the relay is energized when a bypass alarm is
present. The specific nature of the alarm is indicated on the bypass control panel
display. The Bypass Alarm relay is de-energized during normal operation.
Drive Fault (9) [DRIVE FAULT]
If configured for Drive Fault, the relay is energized when a drive fault has occurred.
The specific nature of the fault is indicated on the drive control panel display. The
Drive Fault relay is de-energized during normal control panel.
Drive No Fault (10) [DRV NOT FLT]
If configured for Drive No Fault, the relay is energized during normal operation. The
Drive No Fault relay is de-energized when power is removed from the system, or
when a drive fault has occurred. The specific nature of the fault is indicated on the
drive control panel display.
Drive Alarm (11) [DRIVE ALARM]
If configured for Drive Alarm, the relay is energized when a drive alarm is present.
The specific nature of the alarm is indicated on the drive control panel display. The
Drive Alarm relay is de-energized during normal operation.
Override (12) [OVERRIDE]
If configured for Override, the relay is energized when Smoke Control Override or
Advanced Override mode is selected and de-energized in all other modes. The
Override relay is de-energized during normal operation.
Bypass Hand (13) [BYPASS HAND]
If configured for Bypass Hand, the relay is energized when the motor is running in
Bypass Mode and Hand (manual operation) is selected. The Bypass Hand relay is
de-energized when Bypass Auto or Bypass Off are selected.
Bypass Off (14) [BYPASS OFF]
If configured for Bypass Off, the relay is energized when the bypass control mode
Off is selected. The Bypass Off relay is de-energized when either Bypass Auto or
Bypass Hand are selected.
Bypass Auto (15) [BYPASS AUTO]
If configured for Bypass Auto, the relay is energized when the bypass control mode
Auto is selected. The Bypass Auto relay is de-energized when either Bypass Off or
Bypass Hand are selected.
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