ABB ACS850 Firmware Manual page 236

236 Fault tracing
Code Fault
(fieldbus code)
0018 CURR U2 MEAS
(0x3184)
0019 CURR V2 MEAS
(0x3185)
0020 CURR W2 MEAS
(0x3186)
0021 STO1 LOST
(0x8182)
0022 STO2 LOST
(0x8183)
0023 STO MODE CHANGE
(0xFF7A)
0024 INTBOARD
OVERTEMP
(0x7182)
0025 BC MOD OVERTEMP
(0x7183)
0026 AUTOPHASING
(0x3187)
0027 PU LOST
(0x5400)
0028 PS COMM
(0x5480)
0029 IN CHOKE TEMP
(0xFF81)
Cause
Measured offset error of U2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Measured offset error of V2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Measured offset error of W2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Safe Torque Off function is
active, i.e. safety circuit signal
1 connected between X6:1 and
X6:3 is lost while drive is at
stopped state and parameter
30.07 Sto diagnostic is set to
Alarm or No.
Safe Torque Off function is
active, i.e. safety circuit signal
2 connected between X6:2 and
X6:4 is lost while drive is at
stopped state and parameter
30.07 Sto diagnostic is set to
Alarm or No.
Error in changing Safe Torque
Off supervision, i.e. parameter
30.07 Sto diagnostic setting
could not be changed to value
Fault.
Interface board (between
power unit and control unit)
temperature has exceeded
internal fault limit.
Input bridge or brake chopper
temperature has exceeded
internal fault limit.
Autophasing routine (see
section Autophasing on page
30) failed.
Connection between the JCU
Control Unit and the power unit
of the drive is lost.
Communication errors
detected between the JCU
Control Unit and the power unit
of the drive.
Temperature of internal AC
choke excessive.
What to do
Contact your local ABB representative.
Contact your local ABB representative.
Contact your local ABB representative.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual.
Contact your local ABB representative.
Let drive cool down.
Let drive cool down.
Try other autophasing modes (see
parameter 11.07 Autophasing
possible.
Check the connections between the JCU
Control Unit and the power unit.
Check the connections between the JCU
Control Unit and the power unit.
Check cooling fan.
mode) if