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ABB ACH550-UH HVAC User Manual

ABB ACH550-UH HVAC
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ACH550 Installation, Operation and Maintenance Manual 73
ACH550 E-Clipse Bypass
4008 DRIVE SETUP Alarm generated when
configuration of drive is
such that bypass can
not properly control the
drive. Specifically, drive
parameters
1001,1002,1601, 1608
Incorrect parameters
settings
Set Parameter 1001 to
“COMM”
Set Parameter 1002 to
“COMM”
Set Parameter 1601 to
“COMM”
Set Parameter 1608 to
“COMM”
4009 BYPASS RUN
DELAY
Alarm is generated
when a bypass start
command is issued and
there is non zero time
value in bypass
parameter 1614
NA NA
4010 MTR OVERLOAD Bypass warning if
motor overload
conditions exist as
defined in the drive
Drive Mode:
Bad Motor
Bad Ct’s
Bad RBCU
Bypass mode:
Bad motor
Bad CT’s
Bad RBCU
Either mode:
low input voltage
Drive Mode:
Refer to 550 manual
for proper
troubleshooting
techniques
Bypass Mode:
Check that J2
connector is firmly
seated in RBCU
Check input voltage
Does overload
condition exist?
4011 MTR UNDERLOAD Alarm comes at half the
time of a mtr underload
fault. See fault 3017 for
further text
NA Parameter 3002 is the
time
Parameter 3003 is the
level
4012 BYPASS
DISABLED
Alarm will be generated
if parameter 1613 is set
to “Disable”
NA NA
4013 DRIVE LINK
ERROR
Same as Fault 3019
however will occur
when not in supervisory
mode
Bad cable between
drive and bypass
Communication
improperly set in drive
Parameter
98.02(Modbus)
Application Macro in
99.02 set to 15 (text)
Proper seating of cable
in drive and
RBCU(connector J3)
Check drive parameter
98.02 and 99.02
Check drive Group 53
Follow DriveLink
recovery procedure
4014 DRIVE TEST Alarm is generated
when bypass
parameter 1617 is set
to “enable”
NA NA
4015 START DRIVE 1ST Message displayed on
initial “out of box”
power up sequence
NA Run drive in Hand
Alarm
Code
Alarm Name In
Panel
Alarm Possible Cause Corrective Action

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ABB ACH550-UH HVAC Specifications

General IconGeneral
Frequency50/60 Hz
Output Frequency0 to 500 Hz
Voltage Range200-240V, 380-480V, 500-600V
Power Range1 to 550 HP
Control MethodVector control
Protection ClassIP21
Communication ProtocolsModbus, BACnet, N2
Cooling MethodAir cooled
Enclosure TypeWall-mounted

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