ABB ACH550-VCR - Page 580

2-234 ACH550 E-Clipse Bypass User’s Manual
Diagnostics
4016 INP VOLTAGE
LOW
3-Phase input voltage
has not reached a
sufficient level to
enable editing of
parameters via the
keypad. This message
is generated within a
few seconds of power
up
NA Loose J7 connector
Low input voltage.
Incoming voltage has
not reached at least
155 VAC within a few
seconds of powerup
4019 OVERRIDE 1 Alarm is generated
when override 1 is
active
NA Check Parameter
0103 and 0104 for
digital input status
4020 OVRD2 BYP Alarm is generated
when override 2 is
active and the bypass
is controlling the motor
NA Check Parameter
0103 and 0104 for
digital input status
4021 Selected by PAR
1621
START ENABLE 1
VIBRATION
SWITCH
FIRESTAT
FREEZESTAT
OVERPRESSURE
VIBRATION TRIP
SMOKE ALARM
SAFETY OPEN
LOW SUCTION
PRES
Alarm will occur when
start order is given and
the “RUN Enable” is not
present
Run Enable condition is
not satisfied.
Bad 24v supply
Bad digital input
24 V common is not
tied to Digital input
common on bypass
when using external 24
v supply
Check 24 Volts on
RBCU unit
Check for 24 volts on
respective DI when
condition is satisfied
Check Parameter 0103
For status of digital
input
4022 Selected by PAR
1622
START ENABLE 2
VIBRATION
SWITCH
...
LOW SUCTION
PRES
Alarm will occur when
start order is given and
the “RUN Enable” is not
present
Run Enable condition is
not satisfied.
Bad 24v supply
Bad digital input
24 V common is not
tied to Digital input
common on bypass
when using external 24
v supply
Check 24 Volts on
RBCU unit
Check for 24 volts on
respective DI when
condition is satisfied
Check Parameter 0103
For status of digital
input
4023 Selected by PAR
1623
START ENABLE 3
VIBRATION
SWITCH
...
LOW SUCTION
PRES
Alarm will occur when
start order is given and
the “RUN Enable” is not
present
Run Enable condition is
not satisfied.
Bad 24v supply
Bad digital input
24 V common is not
tied to Digital input
common on bypass
when using external 24
v supply
Check 24 Volts on
RBCU unit
Check for 24 volts on
respective DI when
condition is satisfied
Check Parameter 0103
For status of digital
input
Alarm
Code
Alarm Name In
Panel
Alarm Possible Cause Corrective Action