ABB ACH550-UH HVAC User Manual

76 ACH550 Installation, Operation and Maintenance Manual
ACH550 E-Clipse Bypass
Bypass status listing
Bypass Status
(16 Characters)
Condition Description
DRIVE/BYPASS? DRIVE SELECTED
BYPASS SELECTED
Displays which one is selected, drive or
bypass
SAFETIES? OPEN
CLOSED
Displays if safeties (=START ENABLE 1 and/
or START ENABLE 2) have been applied, or
if they are missing
RUN PERMISSIVES? OPEN
CLOSED
Displays if RUN ENABLE is present or not
START REQUEST? NOT PRESENT
PRESENT
Displays if start request has been applied to
the system
AUTO TRANSFER? NOT TRANSFERRED
TRANSFERRED
Displays if the system is in Auto Transfer
state or not. Does not reflect to PAR 16.08
AUTO XFER value itself
BYP OVERRIDE 1? NOT ACTIVATED
ACTIVATED
Status of Override 1
BYP OVERRIDE 2? NOT ACTIVATED
ACTIVATED
Status of Override 2
DRIVE FAULTED? NO
YES
Displays if drive is faulted or not
BYPASS FAULTED? NO
YES
Displays if bypass is faulted or not
SYSTEM STARTED? NO
YES
Displays if system is started or not
SYSTEM RUNNING? NO
YES
Displays if system is running or not
BYPASS ALARMS? NO ALARMS
ALARM ACTIVE
Displays if there is an active alarm(s) in
bypass or not
HAND/OFF/AUTO? OFF MODE
HAND MODE
AUTO MODE
Displays operating mode of the bypass -
OFF, HAND or AUTO

ABB ACH550-UH HVAC Specifications

General

Brand	ABB
Model	ACH550-UH HVAC
Category	Controller
Language	English