ABB ACS850-04 - Page 270

270 Fault tracing
0018 CURR U2 MEAS
(0x3184)
Measured offset error of U2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Contact your local ABB representative.
0019 CURR V2 MEAS
(0x3185)
Measured offset error of V2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Contact your local ABB representative.
0020 CURR W2 MEAS
(0x3186)
Measured offset error of W2
output phase current
measurement is too great.
(Offset value is updated during
current calibration.)
Contact your local ABB representative.
0021 STO1 LOST
(0x8182)
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.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual.
0022 STO2 LOST
(0x8183)
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.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual.
0023 STO MODE CHANGE
(0xFF7A)
Error in changing Safe Torque
Off supervision, i.e. parameter
30.07 Sto diagnostic setting
could not be changed to value
Fault.
Contact your local ABB representative.
0024 INTBOARD
OVERTEMP
(0x7182)
Interface board (between
power unit and control unit)
temperature has exceeded
internal fault limit.
Let drive cool down.
0025 BC MOD OVERTEMP
(0x7183)
Input bridge or brake chopper
temperature has exceeded
internal fault limit.
Let drive cool down.
0026 AUTOPHASING
(0x3187)
Autophasing routine (see
section Autophasing on page
58) failed.
Try other autophasing modes (see
parameter 11 . 07 Autophasing mode) if
possible.
0027 PU LOST
(0x5400)
Connection between the JCU
Control Unit and the power unit
of the drive is lost.
Check the connections between the JCU
Control Unit and the power unit.
0028 PS COMM
(0x5480)
Communication errors
detected between the JCU
Control Unit and the power unit
of the drive.
Check the connections between the JCU
Control Unit and the power unit.
0029 IN CHOKE TEMP
(0xFF81)
Temperature of internal AC
choke excessive.
Check cooling fan.
Code Fault
(fieldbus code)
Cause What to do